Sharp Microwave Oven R 1500 User Manual
R-1500  
R-1501  
R-1505  
R-1506  
SERVICE MANUAL  
S8123R1500X//  
OVER THE RANGE  
MICROWAVE OVEN  
MODELS  
R-1500  
R-1501  
R-1505  
R-1506  
In the interest of user-safety the oven should be restored to its original  
condition and only parts identical to those specified should be used.  
WARNING TO SERVICE PERSONNEL: Microwave ovens con-  
tain circuitry capable of producing very high voltage and  
current. Contact with the following parts may result in a  
severe, possibly fatal, electrical shock. (High Voltage Capaci-  
tor, High Voltage Power Transformer, Magnetron, High Volt-  
age Rectifier Assembly, High Voltage Harness etc..)  
TABLE OF CONTENTS  
Page  
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO  
AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY ...................INSIDE FRONT COVER  
BEFORE SERVICING ......................................................................................................INSIDE FRONT COVER  
WARNING TO SERVICE PERSONNEL................................................................................................................ 1  
MICROWAVE MEASUREMENT PROCEDURE ...................................................................................................2  
FOREWORD AND WARNING...............................................................................................................................3  
PRODUCT SPECIFICATIONS ..............................................................................................................................4  
GENERAL INFORMATION...................................................................................................................................4  
OPERATION ..........................................................................................................................................................7  
TROUBLESHOOTING GUIDE ............................................................................................................................11  
TEST PROCEDURE ............................................................................................................................................13  
TOUCH CONTROL PANEL ASSEMBLY ............................................................................................................21  
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ................................................................ 25  
PICTORIAL DIAGRAM ........................................................................................................................................33  
POWER UNIT CIRCUIT ......................................................................................................................................34  
LSI UNIT CIRCUIT...............................................................................................................................................35  
PRINTED WIRING BOARD .................................................................................................................................36  
PARTS LIST ........................................................................................................................................................37  
PACKING AND ACCESSORIES ......................................................................................................................... 39  
This document has been published to be used for after  
sales service only.  
The contents are subject to change without notice.  
SHARP CORPORATION  
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R-1500  
R-1501  
R-1505  
R-1506  
WARNING TO SERVICE PERSONNEL  
Microwave ovens contain circuitry capable of pro-  
ducing very high voltage and current, contact with  
following parts may result in a severe, possibly  
fatal, electrical shock.  
(Example)  
HighVoltageCapacitor,HighVoltagePowerTrans-  
former, Magnetron, High Voltage Rectifier Assem-  
bly, High Voltage Harness etc..  
Read the Service Manual carefully and follow all  
instructions.  
Don't Touch !  
Danger High Voltage  
When the testing is completed,  
1. Disconnect the power supply cord, and then remove  
outer case.  
Before Servicing  
1. Disconnect the power supply cord  
remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
, and then  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. Reconnect the leads to the primary of the power  
transformer.  
5. Reinstall the outer case (cabinet).  
6. Reconnect the power supply cord after the outer case is  
installed.  
WARNING:RISK OF ELECTRIC SHOCK.  
DISCHARGE THE HIGH-VOLTAGE  
CAPACITOR BEFORE SERVICING.  
7. Run the oven and check all functions.  
The high-voltage capacitor remains charged about 60  
seconds after the oven has been switched off. Wait for 60  
secondsandthenshort-circuittheconnectionofthehigh-  
voltage capacitor (that is the connecting lead of the high-  
voltage rectifier) against the chassis with the use of an  
insulated screwdriver.  
After repairing  
1. Reconnect all leads removed from components during  
testing.  
2. Reinstall the outer case (cabinet).  
3. Reconnect the power supply cord after the outer case is  
installed.  
4. Run the oven and check all functions.  
Whenever troubleshooting is performed the power supply  
must be disconnected. It may, in some cases, be necessary  
to connect the power supply after the outer case has been  
removed, in this event,  
1. Disconnect the power supply cord, and then remove  
outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. Disconnect the leads to the primary of the power  
transformer.  
Microwave ovens should not be run empty. To test for the  
presence of microwave energy within a cavity, place a cup  
of cold water on the oven turntable, close the door and set  
the power to HIGH and set the microwave timer for two (2)  
minutes. When the two minutes has elapsed (timer at zero)  
carefully check that the water is now hot. If the water  
remains cold carry out Before Servicing procedure and re-  
examine the connections to the component being tested.  
5. Ensure that these leads remain isolated from other  
components and oven chassis by using insulation tape.  
6. After that procedure, reconnect the power supply cord.  
When all service work is completed and the oven is fully  
assembled,themicrowavepoweroutputshouldbechecked  
and microwave leakage test should be carried out.  
1
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MICROWAVE MEASUREMENT PROCEDURE  
A. Requirements:  
1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven  
shouldnotexceed1mW/cm2 atanypoint5cmormorefromtheexternalsurfaceoftheoven, measuredpriortoacquisition  
by a purchaser, and thereafter (through the useful life of the oven), 5 mW/cm2 at any point 5cm or more from the external  
surface of the oven.  
2) Safety interlock switches: Primary interlock switch shall prevent microwave radiation emission in excess of the  
requirement as above mentioned, secondary interlock relay and door sensing switch shall prevent microwave radiation  
emission in excess of 5 mW/cm2 at any point 5cm or more from the external surface of the oven.  
B. Preparation for testing:  
Before beginning the actual measurement of leakage, proceed as follows:  
1) Make sure that the actual instrument is operating normally as specified in its instruction booklet.  
Important:  
Survey instruments that comply with the requirement for instrumentation as prescribed by the performance standard  
for microwave ovens, 21 CFR 1030.10(c)(3)(i), must be used for testing.  
2) Place the oven tray in the oven cavity.  
3) Place the load of 275±15 ml (9.8 oz) of tap water initially at 20±5˚C (68˚F) in the center of the oven cavity.  
The water container shall be a low form of 600 ml (20 oz) beaker with an inside diameter of approx. 8.5 cm (3-1/2 in.)  
and made of an electrically nonconductive material such as glass or plastic.  
The placing of this standard load in the oven is important not only to protect the oven, but also to insure that any leakage  
is measured accurately.  
4) Set the cooking control on Full Power Cooking Mode  
5) Close the door and select a cook cycle of several minutes. If the water begins to boil before the survey is completed,  
replace it with 275 ml of cool water.  
C. Leakage test:  
Closed-door leakage test (microwave measurement)  
1) Grasp the probe of the survey instrument and hold it perpendicular to the gap between the door and the body of the oven.  
2) Move the probe slowly, not faster than 1 in./sec. (2.5 cm/sec.) along the gap, watching for the maximum indication on  
the meter.  
3) Check for leakage at the door screen, sheet metal seams and other accessible positions where the continuity of the metal  
has been breached (eg., around the switches, indicator, and vents).  
While testing for leakage around the door pull the door away from the front of the oven as far as is permitted by the closed  
latch assembly.  
4) Measure carefully at the point of highest leakage and make sure that the highest leakage is no greater than 4mW/cm2,  
and that the primary interlock switch does turn the oven OFF before any door movement.  
NOTE: After servicing, record data on service invoice and microwave leakage report.  
2
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SERVICE MANUAL  
PRODUCT DESCRIPTION  
GENERAL INFORMATION  
OPERATION  
OVER THE RANGE  
MICROWAVE OVEN  
R-1500/ R-1501/ R-1505/ R-1506  
FOREWORD  
This Manual has been prepared to provide Sharp Electronics Corp.  
Service Personnel with Operation and Service Information for the  
SHARP OVER THE RANGE MICROWAVE OVEN, R-1500, R-1501  
R-1505 and R-1506.  
TROUBLESHOOTING GUIDE AND  
TEST PROCEDURE  
It is recommended that service personnel carefully study the entire  
text of this manual so that they will be qualified to render satisfactory  
customer service.  
Check the interlock switches and the door seal carefully. Special  
attention should be given to avoid electrical shock and microwave  
radiation hazard.  
TOUCH CONTROL PANEL  
WARNING  
COMPONENT REPLACEMENT  
AND ADJUSTMENT PROCEDURE  
Never operate the oven until the following points are ensured.  
(A) The door is tightly closed.  
(B) The door brackets and hinges are not defective.  
(C) The door packing is not damaged.  
WIRING DIAGRAM  
PARTS LIST  
(D) The door is not deformed or warped.  
(E) There is not any other visible damage with the oven.  
Servicing and repair work must be carried out only by trained service  
personnel.  
DANGER  
Certaininternalpartsareintentionallynotgroundedand  
present a risk of electrical shock only during servicing.  
Service personnel - Do not contact the following parts  
while the appliance is energized;  
HighVoltageCapacitor,PowerTransformer,Magnetron,High  
Voltage Rectifier Assembly, High Voltage Harness;  
If provided, Vent Hood, Fan assembly, Cooling Fan Motor.  
Allthepartsmarked“*”onpartslistareusedatvoltagesmorethan  
250V.  
Removal of the outer wrap gives access to voltage above 250V.  
All the parts marked “∆” on parts list may cause undue microwave  
exposure, by themselves, or when they are damaged, loosened  
or removed.  
SHARP ELECTRONICS CORPORATION  
SHARP PLAZA, MAHWAH,  
NEW JERSEY 07430-2135  
3
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PRODUCT SPECIFICATION  
ITEM  
DESCRIPTION  
Power Requirements  
120 Volts / 14 Amperes  
60 Hertz  
Single phase, 3 wire grounded  
Power Output  
1000 watts (IEC TEST PROCEDURE)  
Operating frequency of 2450MHz  
Case Dimensions  
Width 29-15/16"  
Height 16-1/4"  
Depth 15- 9/16"  
Cooking Cavity Dimensions  
Width 17-1/2"  
Height 9-7/8"  
1.5 Cubic Feet  
Hood lamp  
Depth 14-15/16"  
2 bulbs, 20W x 2, Incandescent light bulbs  
Approx. 300 C.F.M.  
Hood fan  
Control Complement  
Touch Control System  
Clock ( 1:00 - 12:59 )  
Timer (0 - 99 min. 99 seconds)  
Microwave Power for Variable Cooking  
Repetition Rate;  
P-HI..................................................Full power throughout the cooking time  
P-90 .................................................................... approx. 90% of Full Power  
P-80 .................................................................... approx. 80% of Full Power  
P-70 .................................................................... approx. 70% of Full Power  
P-60 .................................................................... approx. 60% of Full Power  
P-50 .................................................................... approx. 50% of Full Power  
P-40 .................................................................... approx. 40% of Full Power  
P-30 .................................................................... approx. 30% of Full Power  
P-20 .................................................................... approx. 20% of Full Power  
P-10 .................................................................... approx. 10% of Full Power  
P-0 .................................................... No power throughout the cooking time  
KEEP WARM pad, POPCORN pad, HOT WATER pad  
REHEAT CENTER pads, COOK CENTER pads  
DEFROST CENTER pads, Number selection pads  
POWER LEVEL pad, TIMER / CLOCK pad  
LIGHT HI / LO button, FAN HI / LO button,  
STOP/CLEAR button, START/ MINUTE PLUS button,  
Oven Cavity Light  
Safety Standard  
20W x 1 Incandescent light bulb  
UL Listed  
FCC Authorized  
DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J  
Approx. 55 lbs.  
Weight  
GENERAL INFORMATION  
GROUNDING INSTRUCTIONS  
This oven is equipped with a three prong grounding plug. It must be plugged into a wall receptacle that is properly installed  
and grounded in accordance with the National Electrical Code and local codes and ordinances.  
In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the  
electric current.  
WARNING: Improper use of the grounding plug can result in a risk of electric shock.  
4
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Electrical Requirements  
The oven is equipped with a 3-prong grounding plug. DO NOT UNDER ANY CIRCUMSTANCES CUT OR REMOVE THE  
GROUNDING PIN FROM THE PLUG.  
The power supply cord and plug must be connected to a separate 120 Volt AC, 60 Hz, 15 Amp. or more dedicated line, using  
a grounded receptacle. The receptacle should be located inside the cabinet directly above the Microwave Oven/Hood  
system mounting location.  
3-Pronged Plug  
Grounded  
Receptacle Box  
Grounding Pin  
3-Pronged Receptacle  
OVEN DIAGRAM  
10  
10  
15  
1
9
5
2
6
8
4
3
7
10  
12  
13  
11  
14  
1. Oven door with see-through window.  
2. Door hinges.  
3. Waveguide cover.  
4. Turntable motor shaft.  
5. Oven lamp.  
Itwilllightwhenovenisoperatingordoorisopen.  
6. Door latches.  
The oven will not operate unless the door is  
securely closed.  
7. One touch door open button.  
8. Auto Touch control panel  
10.Ventilation openings.  
11.Light Cover.  
12.Grease filters.  
13.Removable turntable.  
The turntable will rotate clockwise or  
counterclockwise.  
Only remove for cleaning.  
14.Removable turntable support.  
15. Power supply cord  
9. Time display: Digital display, 99 minutes 99  
seconds.  
5
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CONTROL PANEL  
W A T T S  
1 0 0 0  
NO.  
LBS.  
CUPS  
OZ.  
COOK DEFROST  
KEEP  
WARM  
HOT  
WATER  
POPCORN  
REHEAT CENTER  
1
2
3
4
Casserole  
Soup  
Pizza  
Beverage  
5
6
7
8
Dinner Plate  
Fresh Rolls / Muffins  
Frozen Rolls / Muffins  
Canned Vegetables  
LIGHT HI/ LO  
FAN HI/ LO  
COOK CENTER  
BAKED  
POTATOES  
RICE  
FROZEN  
VEGETABLES  
FRESH  
VEGETABLES  
GROUND  
MEAT  
FROZEN  
ENTREES  
STOP  
CLEAR  
DEFROST CENTER  
GROUND  
MEAT  
STEAKS/  
CHOPS  
START  
POULTRY  
BONELESS  
POULTRY  
BONE-IN  
MINUTE PLUS  
1 2 3  
4 5 6  
7 8 9  
TIMER  
POWER  
LEVEL  
0
CLOCK  
NOTE: Some one-touch cooking features such as "MINUTE PLUS" are disabled after three minutes when the oven is not  
used. These features are automatically enabled when the door is opened and closed or STOP/CLEAR button is  
pressed.  
6
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OPERATION  
DESCRIPTION OF OPERATING SEQUENCE  
Thefollowingisadescriptionofcomponentfunctionsduring  
oven operation.  
relay(RY2)andismechanicallyassociatedwiththedoor  
so that it will function in the following sequence.  
(1) When the door opens from a closed position, the  
secondaryinterlockrelay(RY2)andprimaryinterlock  
switch open their contacts. And contacts of the relay  
(RY1) remains closed. Then the monitor switch  
contacts close.  
OFF CONDITION  
Closing the door activates the door sensing switch and  
primary interlock switch. (In this condition, the monitor  
switch contacts are opened.)  
When oven is plugged in, 120 volts A.C. is supplied to the  
control unit. (Figure O-1).  
(2) When the door is closed from the open position, the  
monitor switch contacts first open, and then the  
contacts of the primary interlock switch and door  
sensing switch close. And contacts of the relay  
(RY1) open.  
1. The display will show flashing "88 : 88".  
To set any program or set the clock, you must first  
touch the STOP/CLEAR button. The display will clear,  
and " : " will appear .  
If the primary interlock switch and secondary interlock relay  
(RY2) fail with their contacts closed when the door is  
opened, the closing of the monitor switch contacts will form  
a short circuit through the monitor fuse, primary interlock  
switch, relay (RY1) and secondary interlock relay (RY2),  
causing the monitor fuse to blow.  
COOKING CONDITION  
ProgramdesiredcookingtimetouchingtheNUMBERpads.  
When the START button is touched, the following opera-  
tions occur:  
POWER LEVEL P-0 TO P-90 COOKING  
1. The contacts of relays are closed and components  
connected to the relays are turned on as follows.  
(For details, refer to Figure O-2)  
When Variable Cooking Power is programmed, the 120  
voltsA.C. issuppliedtothepowertransformerintermittently  
through the contacts of relay (RY2) which is operated by the  
control unit within an interval second time base. Microwave  
power operation is as follows:  
RELAY  
RY1  
CONNECTED COMPONENTS  
Oven lamp / Fan motor / Turntable motor  
Power transformer  
VARI-MODE  
ON TIME  
32 sec.  
OFF TIME  
0 sec.  
RY2  
Power 10(P-HI)  
(100% power)  
RY3, RY4 Hood fan motor  
RY5, RY6 Hood lamp  
Power 9(P-90)  
30 sec.  
2 sec.  
(approx. 90% power)  
2. 120 volts A.C. is supplied to the primary winding of the  
power transformer and is converted to about 3.3 volts  
A.C. output on the filament winding, and approximately  
2000 volts A.C. on the high voltage winding.  
Power 8(P-80)  
(approx. 80% power)  
Power 7(P-70)  
26 sec.  
24 sec.  
6 sec.  
8 sec.  
3. The filament winding voltage heats the magnetron  
filament and the H.V. winding voltage is sent to a voltage  
doubler circuit.  
4. The microwave energy produced by the magnetron is  
channelled through the waveguide into the cavity feed-  
box, and then into the cavity where the food is placed to  
be cooked.  
5. Upon completion of the cooking time, the power  
transformer, oven lamp, etc. are turned off, and the  
generation of microwave energy is stopped. The oven  
will revert to the OFF condition.  
6. When the door is opened during a cook cycle, monitor  
switch, door sensing switch, primary interlock switch,  
relay (RY1) and secondary interlock relay (RY2) are  
activated with the following results. The circuits to the  
cooling fan motor, the turntable motor, and the high  
voltage components are de-energized, the oven lamp  
remainson, andthedigitalread-outdisplaysthetimestill  
remaining in the cook cycle when the door was opened.  
7. Themonitorswitchiselectricallymonitoringtheoperation  
of the primary interlock switch and secondary interlock  
(approx. 70% power)  
Power 6(P-60)  
(approx. 60% power)  
22 sec.  
18 sec.  
16 sec.  
12 sec.  
8 sec.  
10 sec.  
14 sec.  
16 sec.  
20 sec.  
24 sec.  
26 sec.  
32 sec.  
Power 5(P-50)  
(approx. 50% power)  
Power 4(P-40)  
(approx. 40% power)  
Power 3(P-30)  
(approx. 30% power)  
Power 2(P-20)  
(approx. 20% power)  
Power 1(P-10)  
(approx. 10% power)  
6 sec.  
Power 0(P-0)  
(0% power)  
0 sec.  
Note: The ON/OFF time ratio does not correspond with  
the percentage of microwave power, because  
approx. 3 seconds are needed for heating of the  
magnetron filament.  
7
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VENTILATION METHODS HOT AIR EXHAUST  
1. VERTICAL VENTING  
For this venting method, hot air rising from the  
conventional range below is drawn in by the hood fan  
motor through the grease filters at the right and left sides  
of the base cover, up through the right and left sides of  
the oven cavity, then discharged vertically at rear center  
top of the oven, into the customer's vent system.  
: AIR FLOW  
To Duct  
To Duct  
Hood Fan  
Motor  
Hood  
Intake  
Duct R  
Grease  
Filter  
2. HORIZONTAL VENTING  
The air handing is the same as VERTICAL VENTING  
except that the final air discharge is directed horizontally  
out from the top rear of the oven into the customer's vent  
system.  
: AIR FLOW  
Hood Fan  
Motor  
To Duct  
Hood  
Intake  
Duct R  
Grease  
Filter  
3. RE-CIRCULATION (INSIDE VENTING)  
The air handing is the same as VERTICAL VENTING  
except that the final air discharge is directed horizontally  
through the upper front of the oven into the kitchen. IN  
this case, the accessory charcoal filter RK-240 must be  
provided to filter the air before it leaves the oven.  
: AIR FLOW  
Hood Exhaust  
Louver  
Charcoal  
Filter  
Hood Fan  
Motor  
Hood  
Intake  
Duct R  
8
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SCHEMATIC  
NOTE: CONDITION OF OVEN  
1. DOOR CLOSED.  
NOTE: " " indicates components with potential above 250V.  
CAVITY  
THERMAL CUT-OUT  
MAGNETRON  
TEMPERATURE FUSE  
2. CLOCK APPEARS ON DISPLAY.  
CONTROL UNIT  
N.O.  
COM.  
E2  
E1  
FUSE  
20A  
A5  
RY4  
DOOR  
SENSING  
SWITCH  
POWER  
TRANSFORMER  
B5  
RY6  
RY3  
N.C.  
HOOD FAN  
THERMAL  
CUT OUT  
RY2  
High  
SECONDARY  
INTERLOCK  
RELAY  
B7  
OVEN LAMP  
RELAY  
GRN  
GND  
B9 Low  
HOOD  
RY1  
RY5  
B1  
120 V AC.  
60 Hz  
CAPACITOR  
HIGH VOLTAGE  
CAPACITOR  
0.94µF/ AC2300V  
N.O.  
COM.  
HOOD  
MOTOR  
A1  
A3  
B3  
HOOD  
LAMP  
HIGH VOLTAGE  
RECTIFIER  
OL  
FM  
TTM  
HL  
HL  
PRIMARY  
INTERLOCK  
SWITCH  
Figure O-1. Oven Schematic-Off Condition  
SCHEMATIC  
NOTE: CONDITION OF OVEN  
1. DOOR CLOSED.  
2. COOKING TIME PROGRAMMED.  
3. VARIABLECOOKINGCONTROL"HIGH".  
4. "START" BUTTON PRESSED.  
CAVITY  
THERMAL CUT-OUT  
MAGNETRON  
TEMPERATURE FUSE  
CONTROL UNIT  
N.O.  
COM.  
E2  
E1  
FUSE  
20A  
A5  
RY4  
DOOR  
SENSING  
SWITCH  
POWER  
TRANSFORMER  
B5  
RY6  
RY3  
N.C.  
HOOD FAN  
THERMAL  
CUT OUT  
RY2  
High  
SECONDARY  
INTERLOCK  
RELAY  
B7  
OVEN LAMP  
RELAY  
GRN  
GND  
B9 Low  
HOOD  
RY1  
RY5  
B1  
120 V AC.  
60 Hz  
CAPACITOR  
HIGH VOLTAGE  
N.O.  
COM.  
HOOD  
MOTOR  
A1  
A3  
B3  
CAPACITOR  
0.94µF/ AC2300V  
HOOD  
LAMP  
HIGH VOLTAGE  
RECTIFIER  
OL  
FM  
TTM  
HL  
HL  
PRIMARY  
INTERLOCK  
SWITCH  
Figure O-2. Oven Schematic-Cooking Condition  
9
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DESCRIPTION AND FUNCTION OF COMPONENTS  
3. If the door is opened, and the secondary interlock relay  
DOOR OPEN MECHANISM  
(RY2) and primary interlock switch contacts fail to open,  
themonitorfuseblowssimultaneouslywithclosingofthe  
monitor switch contacts.  
The door is opened by pushing the open button on the  
control panel, refer to the Figure D-1.  
Whentheopenbuttonispushed,theopenbuttonpushesup  
the open lever, and then the open lever pushes up the latch  
head. The latch heads are moved upward and released  
from latch hook. Now the door will open.  
CAUTION: BEFORE REPLACING A BLOWN MONITOR  
FUSE TEST THE DOOR SENSING SWITCH,  
SECONDARY INTERLOCK RELAY (RY2),  
RELAY (RY1), PRIMARY INTERLOCK  
SWITCH AND MONITOR SWITCH FOR  
PROPER OPERATION. (REFER TO CHAP-  
TER "TEST PROCEDURE").  
Latch heads  
Latch hook  
NOTE: MONITOR FUSE AND SWITCH ARE REPLACED  
AS AN ASSEMBLY  
Door sensing  
switch  
Door  
TEMPERATURE FUSE (MG)  
The temperature fuse located on the fan duct assembly is  
designed to prevent damage to the magnetron if an over  
heated condition develops in the tube due to cooling fan  
failure, obstructed air guide, dirty or blocked air intake, etc.  
Under normal operation, the temperature fuse remains  
closed. However, the temperature fuse will open at 302˚F  
(150˚C) causing the oven to shut down.  
Monitor switch  
Open lever  
Primary interlock switch  
Figure D-1. Door Open Mechanism  
NOTE: This is a fuse. It does not reset.  
DOOR SENSING AND PRIMARY INTERLOCK  
SWITCHES  
THERMAL CUT-OUT (HOOD )  
This thermal cut-out located on the right base plate flange  
(turntablemotorside). Itisdesignedtoautomaticallyturnon  
the hood fan motor whenever the hot air rising from the  
conventional range below causes the temperature at the  
thermal cut-out to rise to 140˚F (60˚C) or higher, thus  
removing this hot air from around microwave oven. When  
the temperature around the thermal cut-out drops to 113˚F  
(45˚C) or lower, the thermal cut-out shuts off the hood fan  
motor.  
The primary interlock switch is mounted in the lower posi-  
tion of the latch hook and the door sensing switch in the  
secondary interlock system is mounted in the upper posi-  
tion of the latch hook. They are activated by the latch heads  
on the door. When the door is opened, the switches inter-  
rupt the circuit to all components. A cook cycle cannot take  
place until the door is firmly closed thereby activating both  
interlock switches. The secondary interlock system con-  
sists of the door sensing switch and secondary interlock  
relay located on the control circuit board.  
THERMAL CUT-OUT (CAVITY )  
This thermal cut-out is located on the bottom of the oven  
cavity. It is designed to prevent damage to the oven unit if  
the food in the oven catches fire due to overheating pro-  
duced by improper setting of cooking time or failure of  
control unit.  
Undernormaloperation,thethermalcut-out remainsclosed.  
However, the thermal cut-out will open at 293˚F (145˚C)  
causing the oven to shut down. The defective thermal cut-  
out must be replaced with a new one.  
MONITOR SWITCH  
Themonitorswitchisactivated(thecontactsopened)bythe  
latch head on the door while the door is closed. The switch  
is intended to render the oven inoperative by means of  
blowing the monitor fuse when the contacts of the second-  
ary interlock relay (RY2) and primary interlock switch fail to  
open when the door is opened.  
Functions:  
1. When the door is opened, the monitor switch contact  
close (to the ON condition) due to their being normally  
closed. At this time the secondary interlock relay (RY2)  
and primary interlock switch are in the OFF condition  
(contacts open) due to their being normally open contact  
switches. And the contacts of relay (RY1) are in the ON  
condition (contacts close).  
TURNTABLE MOTOR  
The turntable motor rotates the turntable located on the  
bottom of the oven cavity, so that the foods on the turntable  
cook evenly during cooking. Turntable will turn in either  
direction. The turntable motor can be turned off by touching  
TURNTABLE ON/OFF pad.  
2. As the door goes to a closed position, the monitor switch  
contacts are first opened and then the door sensing  
switch and the primary interlock switch contacts close.  
(On opening the door, each of these switches operate  
inversely.)  
COOLING FAN MOTOR  
The cooling fan motor drives a blade which draws external  
cool air. This cool air is directed through the air vanes  
surroundingthemagnetronandcoolsthemagnetron.Thisair  
10  
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is channelled through the oven cavity to remove steam and  
vapors given off from the heating foods. It is then exhausted  
through the exhausting air vents at the oven cavity.  
This air is then expelled either vertically or horizontally  
through the customer supplied duct system, or discharged  
back into the kitchen.  
HOOD FAN MOTOR  
HOOD LAMP  
The hood fan motor is a two-speed, single-phase, double  
pole induction type, requiring a hood fan capacitor. It is  
located outside the upper rear part of the oven cavity, is to  
remove, from around the oven, hot air rising from the  
conventional electric or gas range over which it is installed.  
The hood lamps are mounted at the hood lamp angle on the  
base cover. The hood lamps can be turned off and on by  
touching the LIGHT HI/ LO button. And also the brightness  
can be varied to high or low by touching the LIGHT HI/ LO  
button.  
TROUBLESHOOTING GUIDE  
Never touch any part in the circuit with your hand or an uninsulated tool while the power supply is connected.  
When troubleshooting the microwave oven, it is helpful to follow the Sequence of Operation in performing the checks. Many  
of the possible causes of trouble will require that a specific test be performed. These tests are given a procedure letter which  
will be found in the "Test Procedure "section.  
IMPORTANT: If the oven becomes inoperative because of a blown monitor fuse, check the monitor switch, relay (RY1)  
secondary interlock relay (RY2), door sensing switch and primary interlock switch before replacing the  
monitor fuse. If monitor fuse is replaced, the monitor switch must also be replaced. Use part FFS-BA016/  
KiT as an assembly.  
IMPORTANT: Whenever troubleshooting is performed with the power supply cord disconnected. It may in, some cases,  
be necessary to connect the power supply cord after the outer case has been removed, in this event,  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. Disconnect the leads to the primary of the power transformer.  
5. Ensure that the leads remain isolated from other components and oven chassis by using insulation tape.  
6. After that procedure, reconnect the power supply cord.  
When the testing is completed  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. Reconnect the leads to the primary of the power transformer.  
5. Reinstall the outer case (cabinet).  
6. Reconnect the power supply cord after the outer case is installed.  
7. Run the oven and check all functions.  
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CK = Check / RE = Replace  
CK LOW VOLTAGE  
CK NO POWER AT OUTLET  
RE SHORT IN POWER CORD  
CK OPENED OR SHORTED WIRING  
CK HOOD MOTOR CAPACITOR  
RE HOOD LAMP OR SOCKET  
RE TURNTABLE MOTOR  
RE FAN MOTOR  
RE OVEN LAMP OR SOCKET  
P
O
N
N
N
N
N
M
L
FOIL PATERN ON P.W.B.  
DEFROST CENTER  
RELAYS (RY-5), (TY6)  
RELAY (RY-4)  
RELAY (RY-3)  
RELAY (RY-2)  
RELAY (RY-1)  
KEY UNIT  
CONTROL UNIT  
K
J
HOOD FAN MOTOR  
HOOD HERMAL CUT-OUT  
MONITOR FUSE  
I
H
G
F
MONITOR SWITCH  
SECONDARY INTERLOCK SYSTEM  
PRIMARY INTERLOCK SWITCH  
TEMPERATURE FUSE OR THERMAL CUT-OUT  
HIGH VOLTAGE CAPACITOR  
H.V. RECTIFIER  
E
D
C
B
A
POWER TRANSFORMER  
MAGNETRON  
POSSIBLE CASE AND  
DEFECTIVE PARTS  
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TEST PROCEDURES  
PROCEDURE  
LETTER  
COMPONENT TEST  
A
MAGNETRON ASSEMBLY TEST  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. To test for an open filament, isolate the magnetron from the high voltage circuit. A continuity check  
across the magnetron filament leads should indicate less than 1 ohm.  
5. To test for a shorted magnetron, connect the ohmmeter leads between the magnetron filament leads  
and chassis ground. This test should indicate an infinite resistance. If there is little or no resistance  
the magnetron is grounded and must be replaced.  
6. Reconnect all leads removed from components during testing.  
7. Reinstall the outer case (cabinet).  
8. Reconnect the power supply cord after the outer case is installed.  
9. Run the oven and check all functions.  
MICROWAVE OUTPUT POWER  
The following test procedure should be carried out with the microwave oven in a fully assembled  
condition (outer case fitted).  
HIGH VOLTAGES ARE PRESENT DURING THE COOK CYCLE, SO EXTREME CAUTION SHOULD  
BE OBSERVED.  
Power output of the magnetron can be measured by performing a water temperature rise test. This test  
shouldonlybeusedifabovetestsdonotindicateafaultymagnetronandthereisnodefectinthefollowing  
componentsorwiring:siliconrectifier,highvoltagecapacitorandpowertransformer.Thistestwillrequire  
a 16 ounce (453cc) measuring cup and an accurate mercury thermometer or thermocouple type  
temperature tester. For accurate results, the following procedure must be followed carefully:  
1. Fill the measuring cup with 16 oz. (453cc) of tap water and measure the temperature of the water with  
a thermometer or thermocouple temperature tester. Stir the thermometer or thermocouple through  
the water until the temperature stabilizes. Record the temperature of the water.  
2. Place the cup of water in the oven. Operate oven at POWER 10(HIGH) selecting more than 60  
secondscooktime.Allowthewatertoheatfor60seconds,measuringwithastopwatch,secondhand  
of a watch or the digital read-out countdown.  
3. Remove the cup from the oven and again measure the temperature, making sure to stir the  
thermometer or thermocouple through the water until the maximum temperature is recorded.  
4. Subtractthecoldwatertemperaturefromthehotwatertemperature.Thenormalresultshouldbe29.2  
to 54.2˚F(16.2 to 30.1˚C) rise in temperature. If the water temperatures are accurately measured and  
tested for the required time period the test results will indicate if the magnetron tube has low power  
output (low rise in water temperature) which would extend cooking time or high power output (high  
rise in water temperature) which would reduce cooking time. Because cooking time can be adjusted  
to compensate for power output, the magnetron tube assembly should be replaced only if the water  
temperature rise test indicates a power output well beyond the normal limits. The test is only accurate  
if the power supply line voltage is 120 volts and the oven cavity is clean.  
B
POWER TRANSFORMER TEST  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. Disconnect the primary input terminals and measure the resistance of the transformer with an  
ohmmeter. Check for continuity of the coils with an ohmmeter. On the R x 1 scale, the resistance of  
the primary coil should be less than 1 ohm and the resistance of the high voltage coil should be  
approximately 83 ohms; the resistance of the filament coil should be less than 1 ohm.  
5. Reconnect all leads removed from components during testing.  
6. Reinstall the outer case (cabinet).  
7. Reconnect the power supply cord after the outer case is installed.  
8. Run the oven and check all functions.  
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TEST PROCEDURES  
PROCEDURE  
COMPONENT TEST  
LETTER  
(HIGH VOLTAGES ARE PRESENT AT THE HIGH VOLTAGE TERMINAL, SO DO NOT ATTEMPT TO  
MEASURE THE FILAMENT AND HIGH VOLTAGE.)  
C
HIGH VOLTAGE RECTIFIER TEST  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. Isolate the rectifier from the circuit. Using the highest ohm scale of the meter, read the resistance  
across the terminals and observe, reverse the leads to the rectifier terminals and observe meter  
reading. If a short is indicated in both directions, or if an infinite resistance is read in both directions,  
the rectifier is probably defective and should be replaced.  
5. Reconnect all leads removed from components during testing.  
6. Reinstall the outer case (cabinet).  
7. Reconnect the power supply cord after the outer case is installed.  
8. Run the oven and check all functions.  
NOTE: Be sure to use an ohmmeter that will supply a forward bias voltage of more than 6.3 volts.  
D
HIGH VOLTAGE CAPACITOR TEST  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. If the capacitor is open, no high voltage will be available to the magnetron. Disconnect input leads  
and check for short or open between the terminals using an ohmmeter.  
Checking with a high ohm scale, if the high voltage capacitor is normal, the meter will indicate  
continuity for a short time and should indicate an open circuit once the capacitor is charged. If the  
above is not the case, check the capacitor with an ohmmeter to see if it is shorted between either of  
the terminals and case. If it is shorted, replace the capacitor.  
5. Reconnect all leads removed from components during testing.  
6. Reinstall the outer case (cabinet).  
7. Reconnect the power supply cord after the outer case is installed.  
8. Run the oven and check all functions.  
E
CAVITY THERMAL CUT-OUT TEST  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. A continuity check across the thermal cut-out terminals should indicate a closed circuit unless the  
temperature of the thermal cut-out reaches approximately 293˚F(145˚C).  
An open thermal cut-out indicates overheating of the oven, exchange the oven thermal cut-out and  
checkinsideofovencavityandforimpropersettingofcookingtimeoroperationofcontrolunit. Check  
forrestrictedairflowthroughtheventholesoftheovencavity, especiallythecoolingfanandairguide.  
5. Reconnect all leads removed from components during testing.  
6. Reinstall the outer case (cabinet).  
7. Reconnect the power supply cord after the outer case is installed.  
8. Run the oven and check all functions.  
MAGNETRON TEMPERATURE FUSE TEST  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. A continuity check across the temperature fuse terminals should indicate a closed circuit. If the  
temperatureofthemagnetronreachesapproximately302˚F(150˚C), thetemperaturefuseopens. An  
open temperature fuse indicates overheating of the magnetron. Check for restricted air flow to the  
magnetron, especially the cooling fan air guide.  
5. Reconnect all leads removed from components during testing.  
14  
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TEST PROCEDURES  
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COMPONENT TEST  
6. Reinstall the outer case (cabinet).  
7. Reconnect the power supply cord after the outer case is installed.  
8. Run the oven and check all functions.  
CAUTION: IF THE THERMAL CUT-OUT OR TEMPERATURE FUSE INDICATES AN OPEN CIRCUIT  
ATROOMTEMPERATURE, REPLACETHERMALCUT-OUTORTEMPERATUREFUSE.  
F
PRIMARY INTERLOCK SWITCH TEST  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. Isolatetheswitchandconnecttheohmmetertothecommon(COM.)andnormallyopen(NO)terminal  
of the switch. The meter should indicate an open circuit with the door open and a closed circuit with  
the door closed. If improper operation is indicated, replace the secondary interlock switch.  
5. Reconnect all leads removed from components during testing.  
6. Reinstall the outer case (cabinet).  
7. Reconnect the power supply cord after the outer case is installed.  
8. Run the oven and check all functions.  
G
SECONDARY INTERLOCK SYSTEM TEST  
DOOR SENSING SWITCH  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. Isolatetheswitchandconnecttheohmmetertothecommon(COM.)andnormallyopen(NO)terminal  
of the switch. The meter should indicate an open circuit with the door open and a closed circuit with  
the door closed. If improper operation is indicated, replace the door sensing switch.  
5. Reconnect all leads removed from components during testing.  
6. Reinstall the outer case (cabinet).  
7. Reconnect the power supply cord after the outer case is installed.  
8. Run the oven and check all functions.  
NOTE: If the door sensing switch contacts fail in the open position and the door is closed, the cooling  
fan motor, stirrer motor and oven light will be activated by RY1.  
SECONDARY INTERLOCK RELAY (RY2)  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. Disconnect two (2) wire leads from the male tab terminals of the Secondary Interlock Relay. Check  
the state of the relay contacts using a ohmmeter. The relay contacts should be open. If the relay  
contacts are closed, replace the circuit board entirely or the relay itself.  
5. Reconnect all leads removed from components during testing.  
6. Reinstall the outer case (cabinet).  
7. Reconnect the power supply cord after the outer case is installed.  
8. Run the oven and check all functions.  
H
MONITOR SWITCH TEST  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. Before performing this test, make sure that the primary interlock switch and the secondary interlock  
relay are operating properly, according to the above Switch and Interlock system Test Procedures.  
Disconnectthewireleadfromthemonitorswitch(COM)terminal. Checkthemonitorswitchoperation  
by using the ohmmeter as follows. When the door is open, the meter should indicate a closed circuit.  
Whenthemonitorswitchactuatorispushedbyascrewdriverthroughthelowerlatchholeonthefront  
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TEST PROCEDURES  
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COMPONENT TEST  
plate of the oven cavity with the door opened (in this condition the plunger of the monitor switch is  
pushed in), the meter should indicate an open circuit. If improper operation is indicated, the switch  
may be defective. After testing the monitor switch, reconnect the wire lead to the monitor switch  
(COM) terminal and check the continuity of the monitor circuit.  
5. Reconnectallleadsremovedfrom  
components during testing.  
Red  
White/ White  
6. Reinstall the outer case (cabinet).  
7. Reconnect the power supply cord  
after the outer case is installed.  
8. Run the oven and check all  
functions.  
Screw Driver  
Ohmmeter  
Primary  
Interlock Switch  
Monitor Switch  
I
BLOWN MONITOR FUSE TEST  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. If the monitor fuse is blown when the door is opened, check the secondary interlock relay, primary  
interlock switch and monitor switch according to the "TEST PROCEDURE" for those switches before  
replacing the blown monitor fuse.  
CAUTION: BEFORE REPLACING A BLOWN MONITOR FUSE, TEST THE SECONDARY INTER-  
LOCK RELAY, PRIMARY INTERLOCK SWITCH, DOOR SENSING SWITCH AND MONI-  
TOR SWITCH FOR PROPER OPERATION.  
If the monitor fuse is blown by improper switch operation, the monitor fuse and monitor switch must  
be replaced with "monitor fuse and monitor switch assembly" part number FFS-BA016/KiT, even if  
the monitor switch operates normally. The monitor fuse and monitor switch assembly is comprised  
of a 20 ampere fuse and switch.  
5. Reconnect all leads removed from components during testing.  
6. Re-install the outer case (cabinet).  
7. Reconnect the power supply cord after the outer case is installed.  
8. Run the oven and check all functions.  
J
HOOD THERMAL CUT-OUT TEST  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. A continuity check across the thermal cut-out terminals should indicate an open circuit unless the  
temperatureofthethermalcut-outreachesapproximately140˚F(60˚C)ormore. At thattemperature,  
the contacts will close. The thermal cut-out opens automatically at approximately 113˚F(45˚C).  
5. Reconnect all leads removed from components during testing.  
6. Reinstall the outer case (cabinet).  
7. Reconnect the power supply cord after the outer case is installed.  
8. Run the oven and check all functions.  
K
HOOD FAN MOTOR TEST  
1. Disconnect the power supply cord, and then remove outer case.  
2. Open the door and block it open.  
3. Discharge high voltage capacitor.  
4. If the motor does not turn, touch the FAN HI / LO button once (set hood fan motor power "HIGH") and  
check voltage between pins "1" and "2" (Blue and Black wires) of the 6 pin connector. If 120 Volts  
appear and the hood capacitor is good, replace the hood fan assembly. If 120 Volts does not appear,  
check the motor circuit. The resistance values of motor terminals are as follows:  
16  
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COMPONENT TEST  
Resistance between;  
YLW  
4
BLU  
1
BLU (1) AND YLW (4) = 0Ω (Shorted)  
BLK (2) AND YLW (4) = 33Ω  
BLU (1) AND BLK (2) = 33Ω  
BLK (2) AND WHT (3) = 11Ω  
WHT (3) AND RED (5) = 22Ω  
HOOD FAN  
CAPACITOR  
33 Ω  
22 Ω  
11 Ω  
5
2
BLU BLK WHT  
6-PIN CONNECTOR  
OF HOOD FAN MOTOR  
BLK  
3
RED  
1
2
3
WHT  
5. Reconnect all leads removed from components during testing.  
6. Reinstall the outer case (cabinet).  
4
5
7. Reconnect the power supply cord after the outer case is installed.  
8. Run the oven and check all functions.  
YLW RED  
L
TOUCH CONTROL PANEL ASSEMBLY TEST  
The touch control panel consists of circuits including semiconductors such as LSI, ICs, etc. Therefore,  
unlike conventional microwave ovens, proper maintenance cannot be performed with only a voltmeter  
and ohmmeter. In this service manual, the touch control panel assembly is divided into two units, Control  
Unit and Key Unit, and also the Control Unit is divided into two units, LSI Unit and Power Unit, and  
troubleshooting by unit replacement is described according to the symptoms indicated.  
Before testing,  
1) Disconnect the power supply cord, and then remove outer case. Refer to procedure of " HOOD  
EXHAUST LOUVER REMOVAL ", " REMOVAL OF OVEN FROM WALL " and " OUTER CASE  
REMOVAL ".  
2) Open the door and block it open.  
3) To discharge high voltage capacitor, wait for 60 seconds.  
4) Remove two (2) screws holding the hood intake duct R to the ovencavity top plate and the base  
plate R. And remove the hood intake duct R.  
5) Disconnect the leads to the primary of the power transformer.  
6) Ensure that these leads remain isolated from other components and oven chassis by using  
insulation tape.  
1. Key Unit.  
NOTE ;  
1) Check key unit ribbon connection before replacement.  
2) Reconnect all leads removed from components during testing.  
3) Re-install the hood intake duct R with two (2) screws.  
4) Re-install the outer case (cabinet).  
5) Reconnect the power supply cord after the outer case is installed.  
6) Run the oven and check all functions.  
The following symptoms indicate a defective key unit.  
a) When touching the pads, a certain pad produces no signal at all.  
b) When touching a number pad, two figures or more are displayed.  
c) When touching the pads, sometimes a pad produces no signal.  
If the key unit is defective.  
1) Disconnect the power supply cord, and then remove outer case.  
2) Open the door and block it open.  
3) To discharge high voltage capacitor, wait for 60 seconds.  
4) Replace the key unit.  
5) Reconnect all leads removed from components during testing.  
6) Re-install the outer case (cabinet).  
7) Reconnect the power supply cord after the outer case is installed.  
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TEST PROCEDURES  
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COMPONENT TEST  
8) Run the oven and check all functions.  
2. Control Unit.  
The following symptoms indicate a defective control unit. Before replacing the control unit, perform  
the Key unit test (Procedure M) to determine if control unit is faulty.  
2-1 In connection with pads.  
a) When touching the pads, a certain group of pads do not produce a signal.  
b) When touching the pads, no pads produce a signal.  
2-2 In connection with indicators  
a) At a certain digit, all or some segments do not light up.  
b) At a certain digit, brightness is low.  
c) Only one indicator does not light.  
d) The corresponding segments of all digits do not light up; or they continue to light up.  
e) Wrong figure appears.  
f) A certain group of indicators do not light up.  
g) The figure of all digits flicker.  
2-3 Other possible problems caused by defective control unit.  
a) Buzzer does not sound or continues to sound.  
b) Clock does not operate properly.  
c) Cooking is not possible.  
When testing is completed,  
1) Disconnect the power supply cord.  
2) Open the door and block it open.  
3) To discharge high voltage capacitor, wait for 60 seconds.  
4) Reconnect all leads removed from components during testing.  
5) Re-install the hood intake duct R.  
6) Re-install the outer case (cabinet).  
7) Reconnect the power supply cord after the outer case is installed.  
8) Run the oven and check all functions.  
M
KEY UNIT TEST  
1. Disconnect the power supply cord.  
2. Open the door and block it open.  
3. To discharge high voltage capacitor, wait for 60 seconds.  
4. Remove the control panel assembly.  
5. If the display fails to clear when the STOP/CLEAR pad is depressed, first verify the flat ribbon cable  
is making good contact, verify that the door sensing switch (stop switch) operates properly; that is the  
contacts are closed when the door is closed and open when the door is open. If the door sensing  
switch (stop switch) is good, disconnect the flat ribbon cable that connects the key unit to the control  
unit and make sure the door sensing switch is closed (either close the door or short the door sensing  
switch connecter). Use the Key unit matrix indicated on the control panel schematic and place a  
jumper wire between the pins that correspond to the STOP/CLEAR pad making momentary contact.  
If the control unit responds by clearing with a beep the key unit is faulty and must be replaced. If the  
control unit does not respond, it is faulty and must be replaced. If a specific pad does not respond,  
the above method may be used (after clearing the control unit) to determine if the control unit or key  
pad is at fault.  
6. Reconnect all leads  
G 8  
G 7  
G 6  
G 5  
G 4  
G 3  
G 2  
G 1  
removed from components  
during testing.  
REHEAT  
CENTER  
HOT  
WATER  
LIGHT  
HI / LO  
FRESH  
VEGETABLES  
2
3
POPCORN  
RICE  
7. Re-install the control panel  
assembly.  
8. Reconnect the power  
supply cord.  
9. Run the oven and check all  
functions.  
GROUND  
MEAT  
GROUND  
MEAT  
KEEP  
WARM  
FROZEN  
ENTREES  
FAN  
HI / LO  
4
5
8
0
6
(DEFROST CENTER)  
(COOK CENTER)  
STOP  
CLEAR  
POULTRY  
BONELESS  
FROZEN  
VEGETABLES  
STEAKS /  
CHOPS  
7
9
START  
MINUTE  
PLUS  
POWER  
LEVEL  
BAKED  
POTATOES BONE-IN  
POULTRY  
TIMER  
CLOCK  
1
KEY UNIT  
18  
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TEST PROCEDURES  
PROCEDURE  
LETTER  
COMPONENT TEST  
N
RELAY TEST  
1. Disconnect the power supply cord, and then remove outer case. Refer to procedure of " HOOD  
EXHAUST LOUVER REMOVAL ", " REMOVAL OF OVEN FROM WALL " and " OUTER CASE  
REMOVAL ".  
2. Open the door and block it open.  
3. To discharge high voltage capacitor, wait for 60 seconds.  
4. Remove the hood intake duct R.  
5. Disconnect the leads to the primary of the power transformer.  
6. Ensure that these leads remain isolated from other components and oven chassis by using insulation  
tape.  
7. After that procedure, re-connect the power supply cord.  
8. Check voltage between normal open terminal of the relay RY2 and the normal open terminal of the  
relay RY1 on the control unit with an A.C. voltmeter.  
The meter should indicate 120 volts, if not check oven circuit.  
RY1, RY2, RY3, RY4, RY5 and RY6 Relay Test  
These relays are operated by D.C. voltage  
Check voltage at the relay coil with a D.C. voltmeter during the microwave cooking operation.  
DC. voltage indicated ....................Defective relay.  
DC. voltage not indicated ..............Check diode which is connected to the relay coil. If diode  
is good, control unit is defective.  
RELAY SYMBOL  
OPERATIONAL VOLTAGE  
Approx. 26.6V D.C.  
Approx. 26.0V D.C.  
Approx. 26.6V D.C.  
Approx. 26.6V D.C.  
Approx. 26.6V D.C.  
Approx. 26.6V D.C.  
CONNECTED COMPONENTS  
Oven lamp / Fan motor / Turntable motor  
Power transformer  
RY1  
RY2(COOK)  
RY3  
Hood motor  
RY4  
Hood motor  
RY5  
Hood lamp  
RY6  
Hood lamp  
9. Disconnect the power supply cord.  
10. Open the door and block it open.  
11. To discharge high voltage capacitor, wait for 60 seconds.  
12. Reconnect all leads removed from components during testing.  
13. Re-install the hood intake duct R.  
14. Re-install the outer case (cabinet).  
15. Reconnect the power supply cord after the outer case is installed.  
16. Run the oven and check all functions.  
O
DEFROST CENTER TEST  
(1) Open the door.  
(2) Place one cup of water in the center of the turntable tray in the oven cavity.  
(3) Touch the " STEAKS/CHOPS " pad once.  
(4) Close the door.  
(5) Touch the " START " button.  
(6) The oven is in Defrost center cooking condition.  
(7) The oven will operate as follows.  
Menu  
Steaks/Chops LEVEL  
0.5lbs 60%  
1ST STAGE  
TIME LEVEL  
57sec. 40%  
2ND STAGE  
TIME  
17sec.  
(8) If improper operation is indicated, the control unit is probably defective and should be checked.  
P
FOIL PATTERN ON THE PRINTED WIRING BOARD TEST  
To protect the electronic circuits, this model is provided with a fine foil pattern added to the primary on  
the PWB, this foil pattern acts as a fuse.  
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TEST PROCEDURES  
PROCEDURE  
LETTER  
COMPONENT TEST  
1. Foil pattern check and repairs.  
1) Disconnect the power supply cord.  
2) Open the door and block it open.  
3) To discharge high voltage capacitor, wait for 60 seconds.  
4) Remove the control unit, referring to the procedure of " CONTROL PANEL ASSEMBLY,  
CONTROL UNIT AND KEY UNIT REMOVAL ".  
5) Follow the troubleshooting guide given below for repair.  
STEPS  
OCCURRENCE  
Only pattern at "a" is broken.  
Pattern at "a" and "b" are broken.  
CAUSE OR CORRECTION  
*Insert jumper wire J1 and solder.  
1
2
*Insert the coil RCILF2003YAZZ between "c" and "d".  
6) Make a visual inspection of the varistor.  
Check for burned damage and examine  
the transformer with a tester for the  
presence of layer short-circuit (check the  
primary coil resistance which is  
approximately 780Ω ± 10%). If any  
abnormal condition is detected, replace  
the defective parts.  
d
a
b
c
7) Reconnect all leads removed from components during testing.  
8) Re-install the control unit to the control panel and re-install the control panel to the oven.  
9) Reconnect the power supply cord.  
10) Run the oven and check all functions.  
2. Follow the troubleshooting guide given below, if indicator does not light up after above check and  
repairs are finished.  
1) Disconnect the power supply cord, and then remove outer case. Refer to procedure of " HOOD  
EXHAUST LOUVER REMOVAL ", " REMOVAL OF OVEN FROM WALL " and " OUTER CASE  
REMOVAL ".  
2) Open the door and block it open.  
3) To discharge high voltage capacitor, wait for 60 seconds.  
4) Remove the hood intake duct R.  
5) Disconnect the leads to the primary of the power transformer.  
6) Ensure that these leads remain isolated from other components and oven chassis by using  
insulation tape.  
7) After that procedure, re-connect the power supply cord.  
8) Follow the troubleshooting guide given below for repair.  
STEPS  
OCCURRENCE  
CAUSE OR CORRECTION  
The rated AC voltage is not present between  
1
2
the normal open terminal of the relay RY2 and Check supply voltage and oven power cord.  
the normal open terminal of the relay RY1.  
The rated AC voltage is present at primary  
side of low voltage transformer.  
Low voltage transformer or secondary circuit defective.  
Check and repair.  
9) Disconnect the power supply cord.  
10) Open the door and block it open.  
11) To discharge high voltage capacitor, wait for 60 seconds.  
12) Reconnect all leads removed from components during testing.  
13) Re-install the hood intake duct R.  
14) Re-install the outer case (cabinet).  
15) Reconnect the power supply cord after the outer case is installed.  
16) Run the oven and check all functions.  
20  
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TOUCH CONTROL PANEL ASSEMBLY  
OUTLINE OF TOUCH CONTROL PANEL  
The touch control section consists of the following units  
as shown in the touch control panel circuit.  
Symbol  
VC  
Voltage  
-5.3V  
Application  
LSI(IC1)  
(1) Key Unit  
3) Synchronizing Signal Circuit  
(2) Control Unit (The Control unit consists of LSI Unit and  
Power U nit)  
The power source synchronizing signal is available in  
order to compose a basic standard time in the clock  
circuit. It incorporates a very small error because it works  
on commercial frequency.  
The principal functions of these units and the signals com-  
municated among them are explained below.  
Key Unit  
4) ACL Circuit  
The key unit is composed of a matrix, signals generated in  
the LSI are sent to the key unit through P20, P21, P22, P23,  
P24, P25, P26 and P27.  
A circuit to generate a signals which resetting the LSI to  
the initial state when power is applied.  
When a key pad is touched, a signal is completed through  
the key unit and passed back to the LSI through P43, P44,  
P45 and P46 to perform the function that was requested.  
5) Buzzer Circuit  
The buzzer is responds to signals from the LSI to emit  
audiblesounds(keytouchsoundandcompletionsound).  
Control Unit  
6) Door Sensing Switch  
Control unit consists of LSI, power source circuit, synchro-  
nizing signal circuit, ACL circuit, buzzer circuit, relay circuit  
indicator circuit and back light circuit.  
A switch to inform the LSI if the door is open or closed.  
7) Relay Circuit  
To drive the magnetron, fan motor, turntable motor, hood  
motor, and light the oven lamp and hood lamp.  
1) LSI  
This LSI controls the key strobe signal, relay driving  
signal for oven function and indicator signal.  
8) Indicator Circuit  
This circuit consists of 22 segments and 3 common  
electrodes using a Light Crystal Display.  
2) Power Source Circuit  
This circuit generates voltages necessary for the control  
unit from the AC line voltage.  
In addition, the synchronizing signal is available in order  
to compose a basic standard time in the clock circuit.  
9) Back Light Circuit  
Acircuittodrivethebacklight(LightemittingdiodesLD1-  
LD4).  
DESCRIPTION OF LSI  
LSI  
The I/O signal of the LSI is detailed in the following table.  
Pin No.  
Signal  
I/O  
Description  
1-2  
VL2-VL1  
IN  
Power source voltage input terminal.  
Standard voltage for LCD.  
3-6  
AN7-AN4  
IN  
Terminal to change cooking input according to the Model.  
By using the A/D converter contained in the LSI, DC voltage in accordance with the Model  
in operation is applied to set up its cooking constant.  
7
8
AN3  
AN2  
OUT  
IN  
Back light circuit (Light emitting diodes) driving signal.  
To input signal which communicates the door open/close information to LSI.  
Door close "H" level signal (0V). Door open "L" level signal (-5V).  
9-10  
11-13  
14  
AN1-AN0  
P57-P55  
CNTR0  
OUT  
OUT  
OUT  
Terminal not used.  
Terminal not used.  
0.1 sec.  
Signal to sound buzzer (2.0 kHz).  
H : GND  
A
A: key touch sound.  
L : -5V  
2.0 sec.  
B: Completion sound.  
H : GND  
B
L : -5V  
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Pin No.  
15  
Signal  
P53  
I/O  
Description  
OUT  
Terminal not used.  
16  
P52  
OUT Oven lamp, fan motor and turntable motor driving signal  
16.7 msec.  
To turn on and off shut off relay (RY1). The  
squarewaveformvoltageisdeliveredtotheRY1  
driving circuit and RY2 control circuit.  
H : GND  
L : -5V  
During cooking  
17-18  
19  
P51-P50  
P47  
OUT  
OUT  
Terminal not used.  
Magnetron high-voltage circuit driving signal.  
OFF  
To turn on and off the cook relay (RY2). The  
signals holds "L" level during microwave cook-  
ing and "H" level while not cooking. In other  
cooking modes (variable cooking) the signal  
turns to "H" level and "L" level in repetition  
according to the power level.  
H : GND  
P-HI  
P-70  
ON  
L : -5V  
OFF  
OFF  
H : GND  
24 sec.  
ON  
8 sec.  
L : -5V  
(ON and OFF times for other power level.)  
20  
P46  
IN  
Signal coming from touch key.  
When either G12 line on key matrix is touched, a corresponding signal out of P20 - P27 will  
be input into P46. When no key is touched, the signal is held at "H" level.  
21  
22  
23  
24  
P45  
P44  
P43  
INT0  
IN  
IN  
IN  
IN  
Signal similar to P46.  
When either G11 line on key matrix is touched, a corresponding signal will be input into P45.  
Signal similar to P46.  
When either G10 line on key matrix is touched, a corresponding signal will be input into P44.  
Signal similar to P46.  
When either G9 line on key matrix is touched, a corresponding signal will be input into P43.  
Signal synchronized with commercial power source frequency.  
H : GND  
This is the basic timing for time processing of LSI.  
L : -5V  
16.7 msec.  
25  
26  
27  
P41  
P40  
OUT  
IN  
Terminal not used.  
Connected to GND through the pull-down resistor R100.  
IN  
Auto clear terminal.  
RESET  
Signal is input to reset the LSI to the initial state when power is applied.  
Terminal not used.  
28-29  
30  
P71-P70  
XIN  
OUT  
IN  
Internal clock oscillation frequency input setting.  
Theinternalclockfrequencyissetbyinsertingtheceramicfilteroscillationcircuitwithrespect  
to XOUT terminal.  
31  
32  
33  
XOUT  
VSS  
P27  
OUT  
IN  
Internal clock oscillation frequency control output.  
Output to control oscillation input of XIN.  
Power source voltage: -5.0V.  
VC voltage of power source circuit input.  
Key strobe signal.  
OUT  
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one of  
G8 line keys on key matrix is touched.  
34  
35  
36  
P26  
P25  
P24  
OUT  
OUT  
OUT  
Key strobe signal.  
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one of  
G7 line keys on key matrix is touched.  
Key strobe signal.  
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one of  
G6 line keys on key matrix is touched.  
Key strobe signal.  
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one of  
G5 line keys on key matrix is touched.  
22  
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Pin No.  
Signal  
I/O  
Description  
37  
P23  
OUT  
Key strobe signal.  
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one of  
G4 line keys on key matrix is touched.  
38  
39  
40  
41  
P22  
P21  
P20  
P17  
OUT  
OUT  
OUT  
OUT  
Key strobe signal.  
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one of  
G3 line keys on key matrix is touched.  
Key strobe signal.  
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one of  
G2 line keys on key matrix is touched.  
Key strobe signal.  
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one of  
G1 line keys on key matrix is touched.  
Hood lamp driving signal.  
To turn on and off relay(RY6). "L" level: During  
H : GND  
OFF  
Hood lamp ON. "H" level: During Hood lamp  
L
ON  
OFF.  
42  
43  
44  
P16  
P15  
OUT  
OUT  
OUT  
OUT  
Hood lamp driving signal.  
H : GND  
To turn on and off relay(RY5). " L " level: During  
Hood lamp ON. "H" level: During Hood lamp  
OFF.  
OFF  
OFF  
L
ON  
Hood motor high / low driving signal.  
H : GND  
To turn on and off relay(RY3). "L" level: During  
Hood motor high. "H" level: During Hood motor  
low.  
L
ON  
P14  
Hood motor driving signal.  
H : GND  
To turn on and off relay(RY4). "L" level: During  
Hood motor ON. "H" level: During Hood motor  
OFF.  
OFF  
L
ON  
45-47  
48-50  
51-72  
P13-P11  
Terminal not used.  
SEG24-SEG22 OUT  
SEG21-SEG0 OUT  
Terminal not used.  
Segment data signal.  
Connected to LCD.  
The relation between signals are as follows:  
LSI signal (Pin No.)  
LCD (Pin No.)  
LSI signal (Pin No.) LCD (Pin No.)  
SEG 21 (51) -------------------- SEG21 ( 1)  
SEG 20 (52) -------------------- SEG20 ( 2)  
SEG 19 (53) -------------------- SEG19 ( 3)  
SEG 18 (54) -------------------- SEG18 ( 4)  
SEG 17 (55) -------------------- SEG17 ( 5)  
SEG 16 (56) -------------------- SEG16 ( 6)  
SEG 15 (57) -------------------- SEG15 ( 7)  
SEG 14 (58) -------------------- SEG14 ( 8)  
SEG 13 (59) -------------------- SEG13 ( 9)  
SEG 12 (60) ------------------- SEG12 (10)  
SEG 11 (61) ------------------- SEG11 (11)  
SEG 10 (62) --------------------- SEG10 (12)  
SEG 9 (63) ---------------------- SEG 9 (13)  
SEG 8 (64) ---------------------- SEG 8 (14)  
SEG 7 (65) ---------------------- SEG 7 (15)  
SEG 6 (66) ---------------------- SEG 6 (16)  
SEG 5 (67) ---------------------- SEG 5 (17)  
SEG 4 (68) ---------------------- SEG 4 (18)  
SEG 3 (69) ---------------------- SEG 3 (19)  
SEG 2 (70) ---------------------- SEG 2 (20)  
SEG 1 (71) ---------------------- SEG 1 (21)  
SEG 0 (72) ---------------------- SEG 0 (22)  
73/74  
75  
VCC/VREF  
AVSS  
IN  
Connected to GND.  
Connected to VC.  
Terminal not used.  
IN  
76  
COM3  
OUT  
OUT  
77  
COM2  
Common data signal: COM2.  
Connected to LCD signal COM2.  
Common data signal: COM1.  
Connected to LCD signal COM1.  
78  
79  
80  
COM1  
COM0  
VL3  
OUT  
OUT  
IN  
Common data signal: COM0.  
Connected to LCD signal COM0.  
Power source voltage input terminal.  
Standard voltage for LCD.  
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SERVICING  
1. Precautions for Handling Electronic Components  
This unit uses CMOS LSI in the integral part of the  
circuits. When handling these parts, the following  
precautions should be strictly followed. CMOS LSI have  
extremely high impedance at its input and output  
terminals. For this reason, it is easily influenced by the  
surrounding high voltage power source, static electricity  
charge in clothes, etc. and sometimes it is not fully  
protected by the built-in protection circuit.  
transformer.  
4) Re-install the outer case (cabinet).  
5)Re-connectthepowersupplycordaftertheoutercase  
is installed.  
6) Run the oven and check all functions.  
A. On some models, the power supply cord between the  
touch control panel and the oven itself is so short that the  
two can’t be separated. For those models, check and  
repair all the controls (sensor-related ones included) of  
the touch control panel while keeping it connected to the  
oven.  
B. On some models, the power supply cord between the  
touch control panel and the oven proper is long enough  
that they may be separated from each other. For those  
models, it is possible to check and repair the controls of  
the touch control panel while keeping it apart from the  
oven proper; in this case you must short both ends of the  
door sensing switch (on PWB) of the touch control panel  
with a jumper, which activates an operational state that  
is equivalent to the oven door being closed. As for the  
sensor-related controls of the touch control panel,  
checking them is possible if dummy resistor(s) with  
resistance equal to that of the controls are used.  
(2) Servicing the touch control panel with power supply  
from an external power source:  
In order to protect CMOS LSI.  
1) When storing and transporting, thoroughly wrap them in  
aluminium foil. Also wrap all PW boards containing them  
in aluminium foil.  
2) When soldering, ground the technician as shown in the  
figure and use grounded soldering iron and work table.  
approx. 1M ohm  
2. Shapes of Electronic Components  
Transistor  
KRC243M  
Disconnect the touch control panel completely from the  
oven proper, and short both ends of the door sensing  
switch (on PWB) of the touch control panel, which  
activates an operational state that is equivalent to the  
oven door being closed. Connect an external power  
source to the power input terminal of the touch control  
panel, then it is possible to check and repair the controls  
of the touch control panel it is also possible to check the  
sensor-related controls of the touch control panel by  
using the dummy resistor(s).  
B
C
E
3. Servicing of Touch Control Panel  
We describe the procedures to permit servicing of the  
touch control panel of the microwave oven and the  
precautions you must take when doing so. To perform  
theservicing,powertothetouchcontrolpanelisavailable  
either from the power line of the oven itself or from an  
external power source.  
(1) Servicing the touch control panel with power supply  
of the oven:  
4. Servicing Tools  
CAUTION:  
Tools required to service the touch control panel  
assembly.  
1) Soldering iron: 30W  
(It is recommended to use a soldering iron with a  
grounding terminal.)  
2) Oscilloscope: Single beam, frequency range: DC-  
10MHz type or more advanced model.  
3) Others: Hand tools  
THE HIGH VOLTAGE TRANSFORMER OF THE  
MICROWAVE OVEN IS STILL LIVE DURING  
SERVICING AND PRESENTS A HAZARD.  
Therefore,beforecheckingtheperformanceofthetouch  
control panel,  
1) Disconnect the power supply cord, and then remove  
outer case.  
2) Open the door and block it open.  
3) Discharge high voltage capacitor.  
4) Disconnect the leads to the primary of the power  
transformer.  
5) Ensure that these leads remain isolated from other  
components and oven chassis by using insulation  
tape.  
6) After that procedure, re-connect the power supply  
cord.  
After checking the performance of the touch control  
panel,  
5. Other Precautions  
1) Beforeturningonthepowersourceofthecontrolunit,  
remove the aluminium foil applied for preventing  
static electricity.  
2) Connect the connectors of the key unit to the control  
unit being sure that the lead wires are not twisted.  
3) After aluminium foil is removed, be careful that  
abnormal voltage due to static electricity etc. is not  
applied to the input or output terminals.  
4) Attach connectors, electrolytic capacitors, etc. to  
PWB, making sure that all connections are tight.  
5) Be sure to use specified components where high  
precision is required.  
1) Disconnect the power supply cord.  
2) Open the door and block it open.  
3) Re-connect the leads to the primary of the power  
24  
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COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE  
WARNINGAGAINST HIGH VOLTAGE:  
Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may  
result in severe, possibly fatal, electric shock.  
(Example)  
High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..  
Avoid possible exposure to microwave energy. Please follow the instructions below before  
operating the oven.  
WARNING:  
1. Disconnect the power supply cord.  
1. Door does not close firmly.  
2. Make sure that a definite” click” can be heard when the  
microwave oven door is unlatched. (Hold the door in a  
closed position with one hand, then push the door open  
button with the other, this causes the latch leads to rise,  
it is then possible to hear a “click’ as the door switches  
operate.)  
2. Door hinge, support or latch hook is damaged.  
3. The door gasket or seal is damaged.  
4. The door is bent or warped.  
5. There are defective parts in the door interlock system.  
6. There are defective parts in the microwave generating  
and transmission assembly.  
3. Visuallycheckthedoorandcavityfaceplatefordamage  
(dents, cracks, signs of arcing etc.).  
7. There is visible damage to the oven.  
Do not operate the oven:  
Carry out any remedial work that is necessary before  
operating the oven.  
Do not operate the oven if any of the following conditions  
exist;  
1. Without the RF gasket (Magnetron).  
2. If the wave guide or oven cavity are not intact.  
3. If the door is not closed.  
4. If the outer case (cabinet) is not fitted.  
WARNING FOR WIRING  
To prevent an electric shock, take the following pre-  
cautions.  
1. Before wiring,  
1) Disconnect the power supply cord.  
2) Open the door block it open.  
3) Discharge the high voltage capacitor and wait for 60  
seconds.  
2. Don’t let the wire leads touch to the followiong parts;  
1) High voltage parts:  
3) Sharp edge:  
Bottom plate, Oven cavity, Waveguide flange,  
Chassis support and other metallic plate.  
4) Movable parts (to prevent a fault)  
Fan blade, Fan motor, Switch, Open lever, Open  
button.  
3. Do not catch the wire leads in the outer case cabinet.  
4. Insert the positive lock connector until its pin is locked  
andmakesurethatthewireleadsdonot comeoffeven  
if the wire leads are pulled.  
Magnetron, High voltage transformer, High voltage  
capacitor and High voltage rectifier assembly.  
2) Hot parts:  
5. To prevent an error function, connect the wire leads  
correctly, referring to the Pictorial Diagram.  
Oven lamp, Magnetron, High voltage transformer  
and Oven cavity.  
Please refer to ‘OVEN PARTS, CABINET PARTS, CONTROL PANAL PARTS, DOOR PARTS’, when carrying out any of  
the following removal procedures:  
THE FOLLOWING ADJUSTMENTS OR COMPONENT REPLACEMENT CAN BE PERFORMED  
WITHOUT REMOVING THE OVEN FROM THE WALL  
1. Hood lamps, sockets, grease filter and charcoal filter.  
2. Base cover and hood lamp glass assembly.  
3. Turntable motor.  
4. Hood exhaust louver.  
5. Control panel assembly or components.  
HOOD EXHAUST LOUVER REMOVAL  
1. Disconnect the power supply cord.  
seconds.  
2. Open the door and block it open.  
3. To discharge the high voltage capacitor, wait for 60  
4. Remove the three (3) screws holding the hood exhaust  
louver to the oven cavity front face plate.  
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5. Pull the hood exhaust louver from the oven cavity by  
pushing the right and left tabs of the hood exhaust louver  
to remove.  
Left tab  
Hood exhaust louver  
Screw  
Screw  
Right tab  
6. Now, the hood exhaust louver is free.  
Screw  
REMOVAL OF OVEN FROM WALL (Two persons recommended to remove the oven)  
1. Disconnect the power supply cord, and uncoil the power  
supply cord.  
2. To discharge the high voltage capacitor, wait for 60  
seconds.  
cabinet) to the top cabinet.  
6. While supporting the front of the oven, pull down the two  
(2) mounting levers and release the oven from the unit  
mounting plate.  
3. Removetheturntabletrayandsupportfromtheovencavity.  
4. If the exhaust damper assembly is installed, remove the  
one (1) screw holding the exhaust damper assembly to  
therearstay,andremovetheexhaust damperassembly  
by sliding it backward.  
7. Pull the power cord out of the wall cabinet and remove  
the oven.  
8. The oven is now free and can be placed on the work  
surface selected for servicing the oven.  
9. Installation is the reverse of this procedure.  
5. Remove the two (2) screws holding the oven (outer case  
OUTER CASE REMOVAL  
supply cord from the wiring harness and remove the  
power supply cord together with the outer case.  
8. Nip the cord bushing with bushing pliers and release it  
from the outer case cabinet.  
Remove the oven from the wall, referring to "REMOVAL OF  
OVEN FROM WALL" and proceed as follows;  
1. Disconnect the power supply cord.  
2. Open the door and block it open.  
9. Remove the cord bushing and the power supply cord  
from the outer case cabinet.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
10.Now, the power supply cord is free.  
CAUTION: 1. DISCONNECT OVEN FROM POWER  
SUPPLY BEFORE REMOVING OUTER  
CASE.  
4. Removefour(4)screwsholdingtherearstaytothehood  
fan motor or the oven, and remove it.  
5. Removethesix(6)screwsfromtherearoftheoutercase  
cabinet and one (1) screw at front.  
2. DISCHARGE THE HIGH VOLTAGE  
CAPACITOR BEFORE TOUCHING ANY  
OVEN COMPONENTS OR WIRING.  
6. Slide the outer case cabinet back about 1 inch (3 cm) to  
free it from retaining clips on the cavity face plate.  
7. Disconnect the three (3) pin connector of the power  
POWER TRANSFORMER REMOVAL  
Re-install  
1. Disconnect the power supply cord, remove the oven  
fromwall, andremoveoutercase. (Refertoprocedureof  
"REMOVAL OF OVEN FROM WALL" AND "OUTER  
CASE REMOVAL".) And proceed as follows.  
2. Open the door and block it open.  
1. Install by sliding the transformer on the base plate R with  
its primary terminals toward the outer case.  
2. Secure the transformer with two (2) screws to base plate  
R.  
3. Re-connect wire leads (primary and high voltage) to the  
transformer and filament leads of transformer to  
magnetron and high voltage capacitor. Refer to  
"PICTORIAL DIAGRAM".  
4. Re-install the hood intake duct R to the oven cavity top  
plate, the oven cavity front flange and the fan duct with  
three (3) screws.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
4. Remove three (3) screws holding the hood intake duct R  
to the oven cavity top plate, the oven cavity front flange  
and the fan duct. And remove the hood intake duct R.  
5. Disconnect main wire harness from transformer.  
6. Disconnect high voltage wire A from the transformer.  
7. Disconnect filament leads of transformer from the  
magnetron and capacitor.  
5. Re-installtheoutercaseandcheckthatovenisoperating  
properly.  
8. Remove two (2) screws holding the transformer to base  
plate R.  
CAUTION: MAKE SURE THE WIRE LEADS NEVER  
TOUCH THE FAN BLADE.  
HOOD FAN MOTOR REMOVAL  
1. Disconnect the power supply cord and remove the oven  
from wall and remove outer case. (Refer to procedure of  
"RemovalofOvenfromWall"and"OutercaseRemoval")  
2. Open the door and block it open.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
26  
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4. Disconnect the 6-pin connector of the hood fan motor  
from the main wire harness located at the right edge of  
the oven cavity top plate and release the snap band from  
the hood duct.  
5. Remove the hood fan motor from the oven cavity top  
plate by lifting it up.  
6. Now, the hood fan motor is free.  
MAGNETRON REMOVAL  
1. Disconnect the power supply cord , remove the oven  
from wall and remove outer case (Refer to procedure of  
"RemovalofOvenfromWall"and"OutercaseRemoval".)  
2. Open the door and block it open.  
the oven cavity top plate R.  
8. Remove the magnetron duct from the oven cavity, by  
releasing the tab of the magnetron duct from the oven  
cavity top plate.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
9. Carefully remove four (4) mounting screws holding the  
magnetron to waveguide. When removing the screws  
hold the magnetron to prevent it from falling.  
10.Remove the magnetron from the unit with care so the  
magnetron tube should not be hit by any metal object  
around the tube.  
CAUTION: WHEN REPLACING THE MAGNETRON, BE  
SURE THE R.F. GASKET IS IN PLACE AND  
MOUNTING SCREWS ARE TIGHTENED SE-  
CURELY.  
4. Removethethree(3)screwsholdingthehoodintakeduct  
Rtotheovencavitytopplate, theovencavityfrontflange  
and the fan duct. And remove the hood intake duct R.  
5. Disconnect the high voltage wire lead of the high  
voltage rectifier assembly from the magnetron.  
6. Disconnect the filament lead of the transformer from the  
magnetron.  
7. Remove the one (1) screw holding the hood duct R to the  
oven cavity top plate. And remove the hood duct R from  
HIGH VOLTAGE RECTIFIER AND HIGH VOLTAGE CAPACITOR REMOVAL  
8. Remove the fan duct assembly from the oven cavity,  
referring to the procedure of "COOLING FAN MOTOR  
REMOVAL"  
9. Remove one(1)screwholdingcapacitorholderandhigh  
voltage rectifier to the fan duct.  
10.Disconnect the high voltage rectifier assembly from the  
high voltage capacitor.  
11.Now, the high voltage rectifier assembly is free.  
12.Remove capacitor from the holder.  
1. Disconnect the power supply cord , remove the oven  
from wall and remove outer case (Refer to procedure of  
"RemovalofOvenfromWall"and"OutercaseRemoval".)  
2. Open the door and block it open.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
4. Removethethree(3)screwsholdingthehoodintakeduct  
Rtotheovencavitytopplate, theovencavityfrontflange  
and the fan duct. And remove the hood intake duct R.  
5. Disconnect the high voltage wire lead with high voltage  
rectifier from the magnetron.  
13.Now, the high voltage capacitor is free.  
CAUTION: WHEN REPLACING THE HIGH VOLTAGE  
RECTIFIER ASSEMBLY, THE GROUND SIDE  
TERMINAL MUST BE SECURED FIRMLY  
WITH A GROUNDING SCREW.  
6. Disconnect filament lead of the transformer from high  
voltage capacitor.  
7. Disconnect high voltage wire A from capacitor.  
HOOD FAN THERMAL CUT-OUT REMOVAL  
1. Disconnect the power supply cord and remove the oven  
from wall and remove outer case. (Refer to procedure of  
"RemovalofOvenfromWall"and"OutercaseRemoval")  
2. Open the door and block it open.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
and the fan duct. And remove the hood intake duct R.  
5. Disconnect the wire leads from the hood fan thermal  
cut-out.  
6. Remove one (1) screw holding the thermal cut-out to the  
flange of base plate R (turntable motor side).  
7. Removethehoodfanthermalcut-outfromthebaseplate  
R.  
4. Removethethree(3)screwsholdingthehoodintakeduct  
Rtotheovencavitytopplate, theovencavityfrontflange  
8. Now, the hood fan thermal cut-out is free.  
THERMAL CUT-OUT (CAVITY) REMOVAL  
1. Disconnect the power supply cord and remove the oven  
from wall and remove outer case. (Refer to procedure of  
"RemovalofOvenfromWall"and"OutercaseRemoval")  
2. Open the door and block it open.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
4. Disconnect the wire leads from the thermal cut-out  
(cavity).  
5. Remove the thermal cut-out (cavity) from the holder at  
the oven cavity bottom plate.  
6. Now, the thermal cut-out (cavity) is free.  
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TEMPERATURE FUSE (MAGNETRON) REMOVAL  
1. Disconnect the power supply cord and remove the oven  
from wall and remove outer case. (Refer to procedure of  
"RemovalofOvenfromWall"and"OutercaseRemoval")  
2. Open the door and block it open.  
referring to the procedure of " COOLING FAN MOTOR  
REMOVAL".  
5. Disconnect the wire leads from the temperature fuse  
(Magnetron).  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
4. Remove the fan duct assembly from the oven cavity,  
6. Remove the one (1) screw holding the temperature fuse  
(Magnetron) to the fan duct.  
7. Now, the temperature fuse (Magnetron) is free.  
COOLING FAN MOTOR REMOVAL  
1. Disconnect the power supply cord, remove the oven  
from wall and remove outer case (Refer to procedure of  
"RemovalofOvenfromWall"and"OutercaseRemoval".)  
2. Open the door and block it open.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
15.Remove the fan blade from the shaft of the fan motor by  
pulling and rotating the fan blade with your hand.  
16. Now, the fan blade will be free.  
CAUTION:  
*
Do not reuse the removed fan blade because the  
hole (for shaft) may be larger than normal.  
4. Removethethree(3)screwsholdingthehoodintakeduct  
Rtotheovencavitytopplate, theovencavityfrontflange  
and the fan duct. And remove the hood intake duct R.  
5. Remove the one (1) screw holding the hood duct R to the  
oven cavity top plate. And remove the hood duct R.  
6. Disconnect the wire leads from the fan motor.  
7. Disconnect the high voltage wire lead with the high  
voltage rectifier from the magnetron.  
8. Disconnect the filament lead of the transformer from the  
high voltage capacitor.  
9. Disconnect the high voltage wire A from the capacitor.  
10.Release the wire leads from the hole of the fan duct.  
11.Remove two (2) screws holding the fan duct to oven  
cavity top plate and the base plate R.  
17.Remove the two (2) screws holding the fan motor to the  
fan duct.  
18.Now, the fan motor is free.  
INSTALLATION  
1. Install the fan blade to the fan motor shaft according to  
the following procedure.  
2. Hold the center of the bracket which supports the shaft  
of the fan motor on the flat table.  
3. Install the fan blade to the shaft of fan motor by pushing  
thefanbladewithasmall,lightweight,ballpeenhammer  
or rubber mallet.  
4. Installthefanmotortothehoodductwiththetwo(2)screws.  
CAUTION:  
12. Remove the fan duct assembly from the oven cavity.  
13.Removethefanbladefromthefanmotorshaftaccording  
the following procedure.  
14.Hold the edge of the rotor of the fan motor by using a pair  
of groove joint pliers.  
*
*
*
Do not hit the fan blade with excesive force when  
installing because the bracket may be disfigured.  
Make sure that the fan blade rotates smooth after  
installation.  
Make sure that the axis of the shaft is not slanted.  
CAUTION:  
5. Install the fan duct to the oven cavity top plate and base  
plate R with the two (2) screws.  
6. Reconnect the wire leads to the fan motor, magnetron  
and high voltage capacitor, referring to the pictorial  
diagram.  
*
Make sure that any pieces do not enter the gap  
between the rotor and the stator of the fan motor  
because the rotor is easily shaven by pliers and  
metal pieces may be produced.  
*
*
Do not touch the pliers to the coil of the fan motor  
because the coil may be cut or damaged.  
Do not disfigure the bracket by touching with the  
pliers.  
7. Re-install the wire leads to the hole of the fan duct.  
8. Re-install the hood intake duct R to the oven cavity top  
plate, the oven cavity front flange and the fan duct with  
the three (3) screws.  
9. Refer to procedure of "OUTER CASE REMOVAL". And  
reverse their procedure. And re-install the outer case.  
Coil  
Groove joint pliers  
Shaft  
Stator  
Shaft  
Axis  
These are the positions  
that should be pinched  
with pliers  
Gap  
Table  
Center of  
bracket  
Bracket  
Rotor  
Stator  
Rotor  
Rear View  
Side View  
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TURNTABLE MOTOR AND FOOD LAMP SOCKETS REMOVAL  
1. Disconnect the power supply cord.  
TURNTABLE MOTOR  
2. Open the door and block it open.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
9. Disconnect the wire leads from the turntable motor.  
10.Remove one (1) screw holding turntable motor to the  
oven cavity.  
4. Remove the one (1) screw holding the base cover to the  
oven cavity back plate.  
5. Remove the three (3) screws holding the base cover to  
the oven cavity front face plate.  
11.Now the turntable motor is free.  
HOOD LAMP SOCKET  
9. Screw the hood lamp off from the lamp socket.  
10.Disconnect the wire leads from the lamp socket by  
pushing the terminal hole of the lamp socket with the  
small flat type screw driver.  
6. Open the base cover.  
7. Release the two hood lamp sockets from the base cover.  
8. Remove the base cover from the oven cavity by pulling  
down and moving to the left slightly.  
11. Now, the lamp socket is free.  
OVEN LAMP AND LAMP SOCKET REMOVAL  
1. Disconnect the power supply cord.  
2. Open the door and block it open.  
3. Remove three (3) screws holding the hood exhaust  
louver to oven cavity front face plate.  
10. Pullthewireleadsfromtheovenlampsocketbypushing  
the terminal hole of the oven lamp socket with the small  
flat type screw driver.  
11. Now, the oven lamp socket is free.  
4. Removethehoodexhaustlouverfromtheovenby  
pushingtherightandlefttabsofthehoodexhaustlouver.  
(Refer to procedure of "HOOD EXHAUST LOUVER  
REMOVAL")  
Oven lamp  
socket  
5. Remove one (1) screw holding the control panel to the  
oven cavity front face plate.  
6. Release the control panel from the oven cavity front face  
plate by lifting it up and tilting top edge back.  
Terminal  
Wire lead  
Terminal hole  
7. Turn the lamp socket and release it from the magnetron  
duct.  
8. Screw the oven lamp off from the lamp socket.  
9. Now, the oven lamp is free.  
Flat type small  
screw driver  
POSITIVE LOCK® CONNECTOR (NO-CASE TYPE) REMOVAL  
Terminal  
1. Disconnect the power supply cord and remove the oven  
from wall and remove outer case. (Refer to procedure of  
"RemovalofOvenfromWall"and"OutercaseRemoval")  
2. Open the door and block it open.  
Positive lock®  
connector  
1
Push  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
Lever  
4. Push the lever of positive lock® connector.  
5. Pull down on the positive lock® connector.  
2
CAUTION: WHEN CONNECTING THE POSITIVE LOCK®  
CONNECTORS TO THE TERMINALS, IN-  
STALL THE POSITIVE LOCK® SO THAT THE  
LEVER FACES YOU.  
Pull down  
Positive lock® connector  
CONTROL PANEL ASSEMBLY, CONTROL UNIT AND KEY UNIT REMOVAL  
6. Remove one (1) screw holding the control panel to the  
oven cavity front face plate.  
1. Disconnect the power supply cord.  
2. Open the door and block it open.  
7. Release the control panel from the oven cavity front face  
plate by lifting it up.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
8. Disconnect the wire leads from the relays RY1 and RY2.  
9. Disconnect the connectors CN-A, CN-B and CN-E from  
the control unit.  
10. Remove the control panel assembly from the oven.  
11.Now, the control panel assembly is free.  
12.Disconnect the connector CN-G from the control unit.  
4. Remove three (3) screws holding the hood exhaust  
louver to oven cavity front face plate.  
5. Remove the hood exhaust louver from the oven by  
pushingtherightandlefttabsofthehoodexhaustlouver.  
(Refer to procedure of "HOOD EXHAUST LOUVER  
REMOVAL")  
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13.Remove the two (2) screws holding the LCD holder to  
the key fixing plate.  
14.Remove two (2) screws holding the power unit to the key  
fixing plate.  
15.Releasethetwo(2)tabsholdingthepowerunittothekey  
fixing plate.  
16.Release the three (3) tabs holding the LCD to the LCD  
holder.  
2. Before attaching a new key unit, wipe off remaining  
adhesiveonthekeyfixingplatesurfacescompletelywith  
a soft cloth soaked in alcohol.  
3. Whenattachingthekeyunittothekeyfixingplate, adjust  
the upper edge and right edge of the key unit to the  
correct position of key fixing plate. See key unit location.  
4. Stick the key unit firmly to the key fixing plate by rubbing  
with soft cloth not to scratch.  
17.Release the two (2) tabs holding the LSI unit to the LCD  
holder.  
18.Remove the LCD holder and the LED sheet.  
19.Now, the control unit is free.  
20.Remove the one (1) screw holding the key fixing plate to  
the control panel.  
Key unit  
21.Releasethesix(6)tabsholdingthekeyfixingplatetothe  
control panel.  
22.Remove the key fixing plate from the control panel.  
23.Remove the key unit from the key fixing plate.  
24.Now, the key unit is free  
Key  
NOTES FOR KEY UNIT REPLACEMENT  
1. Do not reuse the torn key unit because the performance  
of the adhesive becomes weak.  
fixing plate  
Key unit location  
DOOR SENSING SWITCH, PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL  
1. Disconnect the power supply cord and remove the oven  
from wall and remove outer case. (Refer to procedure of  
"RemovalofOvenfromWall"and"OutercaseRemoval")  
2. Open the door and block it open.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
4. Removethethree(3)screwsholdingthehoodintakeduct  
Rtotheovencavitytopplate, theovencavityfrontflange  
and the fan duct. And remove the hood intake duct R.  
5. Remove the control panel assembly, referring to the  
procedure of "CONTROL PANEL ASSEMBLY ,  
CONTROL UNIT AND KEY UNIT REMOVAL".  
6. Remove the two (2) screws holding the latch hook to the  
oven cavity front flange.  
9. Remove each switch from the latch hook by pushing the  
one (1) stopper tab holding each switch.  
10.Now, each switch is free.  
Re-install  
1. Re-install each switch in its place. The primary interlock  
switch is in the lower position, door sensing switch is in  
the upper position and the monitor switch is in the middle  
position.  
2. Re-connect wire leads to each switch. Refer to pictorial  
diagram.  
3. Secure the latch hook (with two (2) mounting screws) to  
oven cavity front flange.  
4. Make sure that the monitor switch is operating properly  
and check continuity of the monitor circuit. Refer to  
chapter "Test Procedure" and "Adjustment procedure".  
7. Remove the latch hook from the oven cavity front flange.  
8. Disconnect the wire leads of each switch.  
DOOR SENSING SWITCH, PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH ADJUSTMENT  
1. Disconnect the power supply cord and remove the oven  
6. Loosenthetwo(2)screwsholdinglatchhooktotheoven  
from wall and remove outer case. (Refer to procedure of  
cavity front flange.  
"RemovalofOvenfromWall"and"OutercaseRemoval")  
7. Withdoorclosed,adjustlatchhookbymovingitbackand  
2. Open the door and block it open.  
forth, and up and down. In and out play of the door  
3. To discharge the high voltage capacitor, wait for 60  
allowed by the upper and lower position of the latch hook  
seconds.  
should be less than 0.5mm. The vertical position of the  
4. Removethethree(3)screwsholdingthehoodintakeduct  
latch hook should be adjusted so that the door sensing  
Rtotheovencavitytopplate, theovencavityfrontflange  
switchandprimaryinterlockswitchareactivatedwiththe  
and the fan duct. And remove the hood intake duct R.  
door closed. The horizontal position of the latch hook  
5. Remove the control panel assembly, referring to the  
shouldbeadjustedsothatthemonitorswitchisactivated  
procedure of "CONTROL PANEL ASSEMBLY ,  
with the door closed.  
CONTROL UNIT AND KEY UNIT REMOVAL".  
8. Secure the screws with washers firmly.  
If the door sensing switch, primary interlock switch and  
9. Check all of the switches operation. If any switch has not  
monitor switch do not operate properly due to a  
activated with the door closed, loosen screw and adjust  
misadjustment, the following adjustment should be made.  
the latch hook position.  
30  
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After adjustment, check the following.  
Latch heads  
1. In and out play of door remains less than 0.5mm when in  
the latched position. First check upper position of latch  
hook, pushing and pulling upper portion of door toward  
the oven face. Then check lower portion of the latch  
hook, pushing and pulling lower portion of the door  
toward the oven face. Both results (play in the door)  
should be less than 0.5mm.  
Latch hook  
Door sensing  
switch  
Door  
Monitor switch  
2. The door sensing switch and primary interlock switch  
interrupt the circuit before the door can be opened.  
3. Monitor switch contacts close when door is opened.  
4. Re-install outer case and check for microwave leakage  
around door with an approved microwave survey meter.  
(Refer to Microwave Measurement Procedure.)  
Open lever  
Primary interlock switch  
Figure C-1. Latch Switch Adjustments  
DOOR REPLACEMENT  
DOOR ASSEMBLY REMOVAL  
After any servicing, make sure of the following :  
1. Disconnect the power supply cord.  
2. Open the door and block it open.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
4. Remove the three (3) screws holding the hood exhaust  
louver to the oven cavity front face plate.  
5. Removethehoodexhaustlouverfromtheovencavityby  
pushingtherightandlefttabsofthehoodexhaustlouver.  
(Refer to the procedure of "HOOD EXHAUST LOUVER  
REMOVAL".)  
1. Door latch heads smoothly catch latch hook through  
latch holes and that latch head goes through center of  
latch hole.  
2. Deviation of door alignment from horizontal line of cavity  
face plate is to be less than 1.0mm.  
3. Door is positioned with its face pressed toward cavity  
face plate.  
4. Re-install outer case and check for microwave leakage  
around door with an approved microwave survey meter.  
(Refer to Microwave Measurement Procedure.)  
6. Insert a putty knife (thickness of about 0.5mm) into the  
gap A between the door stopper and the choke cover  
as shown in Figure C-3 to free engaging parts.  
7. Lift up the door stopper.  
8. Now, the door stopper is free from the door assembly.  
9. Lift up the door assembly to release the upper and lower  
door hinge pins from the upper and lower oven hinges.  
10.Now, the door assembly is free.  
Note: The door on a microwave oven is designed to  
act as an electronic seal preventing the leakage  
of microwave energy from oven cavity during  
cook cycle. This function does not require that  
door be air-tight, moisture (condensation)-tight  
orlight-tight.Therefore,occasionalappearance  
of moisture, light or sensing of gentle warm air  
movement around oven door is not abnormal  
and do not of themselves indicate a leakage of  
microwave energy from oven cavity.  
Note: When the individual parts are replaced, refer to  
"Door Disassembly".  
DOOR ASSEMBLY RE-INSTALL  
1. Onre-installingdoor,insertthelowerovenhingetolower  
door hinge pin.  
Screw  
Upper door  
hinge pin  
Left tab  
Hood exhaust louver  
Screw  
Right tab  
2. Insert the upper oven hinge to the upper door hinge pin.  
3. Shut the door (close the contacts of interlock switches).  
4. Makesureupperandlowerovenhingesareinsertedinto  
the upper an lower door hinge pins.  
5. Make sure the door is parallel with oven face lines (left  
and upper side lines) and door latch heads pass through  
latch holes correctly.  
6. Re-install the door stopper to the door assembly.  
7. Re-install the hood exhaust louver to the oven cavity  
front face plate with the three (3) screws.  
Upper  
Screw  
oven  
hinge  
RE-INSTALL  
Door assembly  
Latch  
heads  
Lower  
oven  
hinge  
Door stopper  
Lower door  
hinge pin  
Note: After any service to the door;  
(A) Make sure that door sensing switch and primary  
interlock switch are operating properly. (Refer to  
chapter "Test Procedures".)  
(B) An approved microwave survey meter should be  
used to assure compliance with proper microwave  
radiation emission limitation standards.  
RE-INSTALL  
Figure C-2. Door Replacement and adjustment  
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R-1500  
R-1501  
R-1505  
R-1506  
DOOR DISASSEMBLY  
1. Disconnect the power supply cord.  
2. Open the door and block it open.  
3. To discharge the high voltage capacitor, wait for 60  
seconds.  
4. Remove the three (3) screws holding the hood exhaust  
louver to the oven cavity front face plate.  
5. Removethehoodexhaustlouverfromtheovencavityby  
pushingtherightandlefttabsofthehoodexhaustlouver.  
(Refer to the procedure of "HOOD EXHAUST LOUVER  
REMOVAL".)  
6. Remove door assembly, referring to "DOOR  
REPLACEMENT".  
Replacement of door components are as follows:  
7. Place door assembly on a soft cloth with latches facing  
up.  
DOOR FRAME ASSEMBLY  
11.Remove two (2) screws holding the door panel to the  
door frame assembly.  
12.Release the door panel from the door frame assembly.  
NOTE: Itiseasiertoreleasetheengagingpartsoftheupper  
or lower door hinge pin side at first.  
13.Now, door frame assembly is free.  
LATCH SPRING, LATCH HEAD AND DOOR PANEL  
14.Release the latch spring from the tab of the latch head  
and tab of the door frame.  
15.Release the latch head from the door frame.  
16.Now, the latch spring and latch head are free.  
Door stopper  
A
Note: As the engaging part of choke cover and door frame  
are provided at 15 places, do not force any particular  
part.  
Choke cover  
CHOKE COVER  
8. Insert a putty knife (thickness of about 0.5mm) into the  
gap A between the choke cover and door stopper and  
between the choke cover and the door frame as shown  
Figure C-3 to free engaging parts.  
9. Pry the choke cover by inserting a putty knife in order  
shown in Figure C-3.  
Putty knife  
Door frame  
10.Nowchokecoverisfreefromdoorpanelanddoorframe.  
Figure C-3. Door Disassembly  
NOTE: When carrying out any repair to the door, do not  
bend or warp the slit choke (tabs on the door  
panel assembly) to prevent microwave leakage.  
32  
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R-1500  
R-1501  
R-1505  
R-1506  
6
4
5
2
1
3
A
B
C
D
E
F
A
B
C
D
E
F
R Y 6  
R Y 5  
R Y 4  
G
G
R Y 3  
H
H
6
4
5
2
1
3
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R-1500  
R-1501  
R-1505  
R-1506  
6
4
5
2
1
3
A
A
B
C
D
E
F
D1-D4  
T1  
B
C
D
E
F
1N4002  
3
1
8
5
D3  
D1  
C 1 GND  
+
–
D2  
d
D4  
a
VC  
C 7  
R1 750 1w  
R2 750 1w  
VA  
C 3  
C 5  
b
INT  
+
–
c
AC(N)  
C21  
10µ/35v  
N.O  
OVEN LAMP  
TURNTABLE  
MOTOR  
OVEN LAMP  
TURNTABLE  
MOTOR  
C12  
COM  
N.O  
Q21  
KRC243M  
FAN MOTOR  
FAN MOTOR  
RY1  
AC(H)  
SP1  
PKM22EPT  
BUZZER  
C 4  
MICRO.  
COM  
B 7  
C11 MICRO.  
RY2  
RY3  
HOOD MOTOR  
H/L  
C10  
HIGH  
HOOD MOTOR  
LOW  
B 9  
HOOD  
THERMAL  
CUT-OUT  
HOOD MOTOR  
COM.  
C 9  
C 2  
B 5  
A 5  
VR  
HOOD MOTOR  
COM.  
RY4  
RY5  
RY6  
HOOD LAMP  
C 8  
C 6  
HOOD LAMP  
CN-B  
B 3  
HOOD LAMP  
Q22  
D20  
1SS270A  
C13  
C14  
B 1  
A 3  
HOOD LAMP  
DOOR  
SENSING  
SWITCH  
MOTOR RUN  
CAPACITOR  
D40  
1SS270A  
G
G
A 1  
CN-C  
14pin  
WIRE HARNESS  
CN-A  
DOOR  
SENSING  
SWITCH  
CN-E  
NOTE  
: IF NOT SPECIFIED, 1/4W ± 5%  
H
H
Figure S-2. Power Unit Circuit  
6
4
5
2
1
3
34  
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R-1500  
R-1501  
R-1505  
R-1506  
6
4
5
2
1
3
1 5 k  
R 6 0  
A
B
C
D
E
F
A
B
C
D
E
F
1 5 k  
R 6 1  
S E G 2 1  
S E G 2 0  
S E G 1 9  
S E G 1 8  
S E G 1 7  
S E G 1 6  
S E G 1 5  
S E G 1 4  
S E G 1 3  
S E G 1 2  
S E G 1 1  
S E G 1 0  
S E G 9  
S E G 8  
S E G 7  
S E G 6  
S E G 5  
S E G 4  
S E G 3  
S E G 2  
S E G 1  
1 M  
R 8 0  
1 5 k  
R 6 2  
1 5 k  
R 6 3  
S E G 7  
S E G 6  
S E G 5  
S E G 4  
S E G 3  
S E G 2  
S E G 1  
S E G 0  
V C C  
V R E F  
A V S S  
C O M 3  
C O M 2  
C O M 1  
P 2 0  
P 2 1  
P 2 2  
P 2 3  
P 2 4  
P 2 5  
P 2 6  
P 2 7  
V S S  
X O U T  
X I N  
P 7 0  
P 7 1  
1 5 k  
R 6 4  
S E G 0  
N C  
C O M 2  
C O M 1  
C O M 0  
C O M 2 ( L C D )  
C O M 1 ( L C D )  
C O M 0 ( L C D )  
1 5 k  
R 6 5  
C O M 2 ( L C D )  
C O M 1 ( L C D )  
R E S E T  
P 4 0  
P 4 1  
C O M 0 ( L C D ) C O M 0  
V L 2  
1 5 k  
R 6 6  
1 5 k  
R 6 7  
4 . 7 k  
R 1 0 0  
4 . 7 k  
R 1 3  
4 . 7 k  
R 1 4  
R 1 5 4 . 7 k  
4 . 7 k  
G 9 G 1 0 G 1 1 G 1 2  
( J 1 6 )  
1 2 k F  
( J 1 7 )  
4 . 7 k  
( J 1 4 )  
( J 1 5 )  
4 . 7 k  
( J 1 2 )  
( J 1 3 )  
4 . 7 k  
( J 1 0 )  
( J 1 1 )  
1 5 k  
R 1 1  
/ 2 5 v  
0 . 0 1  
C 1 4  
µ
R 6 8 1 5 k  
R 6 9 1 5 k  
R 7 0 1 5 k  
R 7 1 1 5 k  
1 k  
R 1 0  
/ 2 µ 5 v  
C 4 0 0 . 0 1  
U D Z 4 . 3 B  
Z D 1 0  
/ 2 µ 5 v 0 . 0 1  
C 1 3  
R 4 0 4 . 7 k  
1 5 k  
R 1 2  
/ 5 µ 0 v 0 . 1  
C 1 2  
R 5 4 . 7 k  
G
G
R 4 8 2  
/ 5 µ 0 v  
C 1 1 0 . 1  
C 1 0 4 7  
/ 1 µ 6 v  
H
H
6
4
5
2
1
3
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R-1500  
R-1501  
R-1505  
R-1506  
6
4
5
2
1
3
A
A
B
C
D
E
F
CN-C  
14  
1
D40  
D20  
B
C
D
E
F
R1  
DIP  
D21  
R2  
2
1
Q1  
E
B
2
ZD1  
CN-E  
R3  
C2  
Q21  
C3  
E
B
1
C1  
D1  
D3  
D4  
D2  
RY5  
D25  
5
1
9
1
G
G
CN-A  
CN-B  
H
H
Figure S-4. Printed Wiring Board  
6
4
5
2
1
3
36  
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R-1500  
R-1501  
R-1505  
R-1506  
PARTS LIST  
Note: The parts marked “∆” may cause undue microwave exposure.  
The parts marked “*” are used in voltage more than 250V.  
"§" MARK: PARTS DELIVERY SECTION  
REF. NO.  
PART NO.  
§
DESCRIPTION  
Q'TY CODE  
ELECTRIC PARTS  
1- 1  
1- 2  
1- 3  
1- 4  
1- 5  
1- 6  
1- 7  
1- 8  
1- 9  
1-10  
1-11  
1-12  
1-13  
1-14  
1-15  
1-16  
FH-DZB016MRY0 M High voltage rectifier assembly  
RC-QZA234WRE0 M High voltage capacitor  
QFS-TA013WRE0 M Temperature fuse 150˚C (Magnetron)  
RMOTDA211WRE0 M Turntable motor  
RTHM-A070WRE0 M Thermal cut-out 145˚C (Cavity)  
RTHM-0044MRE0 M Thermal cut-out N.O. 60˚C (Hood Fan)  
RTRN-B068MRE0 M Power transformer  
RV-MZA288WRE0 M Magnetron  
QFSHDB003MRE0 M Fuse holder  
QSW-MA085WRE0 M Primary interlock and door sensing switches  
FFS-BA016/KIT M Monitor switch (V-16G-2C25) with fuse (20A) assembly  
FACCDB011MRE0 M Power supply cord  
1
1
1
1
1
1
1
1
1
2
1
1
3
1
1
3
AH  
AP  
AE  
AL  
AF  
AH  
BC  
BK  
AD  
AE  
AF  
AQ  
AE  
BC  
AT  
AE  
*
*
*
∆
*
QSOCLB006MRE0 M Oven lamp socket  
FMOTEA441WRKZ M Hood fan motor  
RMOTEA406WRZZ M Fan motor  
RLMPTA068WRE0 M Oven lamp  
CABINET PARTS  
2- 1  
2- 2  
2- 2  
2- 2  
2- 2  
2- 3  
2- 4  
2- 4  
2- 4  
2- 4  
2- 5  
2- 5  
2- 5  
2- 5  
2- 6  
2- 7  
2- 7  
2- 7  
2- 7  
2-7-1  
2-7-1  
2-7-1  
2-7-1  
2-7-2  
2- 8  
2- 8  
2- 8  
2- 8  
LSTY-B024MRP0 M Rear stay  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
AE  
AQ  
AQ  
AQ  
AQ  
AG  
AL  
AL  
AL  
AL  
AZ  
AZ  
AZ  
AZ  
AB  
AN  
AM  
AN  
AM  
AG  
AG  
AG  
AG  
AH  
AV  
AV  
AV  
AV  
PDIF-B030MRF0 M Hood exhaust louver [R-1500]  
PDIF-B031MRF0 M Hood exhaust louver [R-1501]  
PDIF-B030MRF0 M Hood exhaust louver [R-1505]  
PDIF-B031MRF0 M Hood exhaust louver [R-1506]  
GDAI-B065MRP0A M Base plate R  
HDECQB027MRF0 M Front panel L [R-1500]  
HDECQB028MRF0 M Front panel L [R-1501]  
HDECQB027MRF0 M Front panel L [R-1505]  
HDECQB028MRF0 M Front panel L [R-1506]  
GCABUB103MRP0 M Outer case cabinet [R-1500]  
GCABUB105MRP0 M Outer case cabinet [R-1501]  
GCABUB103MRP0 M Outer case cabinet [R-1505]  
GCABUB105MRP0 M Outer case cabinet [R-1506]  
TMAPCB067MRR0 M Schematic diagram  
FANGKB009MRY0 M Hood lamp glass assembly [R-1500]  
FANGKB010MRY0 M Hood lamp glass assembly [R-1501]  
FANGKB009MRY0 M Hood lamp glass assembly [R-1505]  
FANGKB010MRY0 M Hood lamp glass assembly [R-1506]  
LANGQB016MRP0 M Hood lamp glass angle [R-1500]  
LANGQB020MRP0 M Hood lamp glass angle [R-1501]  
LANGQB016MRP0 M Hood lamp glass angle [R-1505]  
LANGQB020MRP0 M Hood lamp glass angle [R-1506]  
PGLSPB004MRE0 M Hood lamp glass  
PCOVPB096MRT0 M Base cover [R-1500]  
PCOVPB097MRT0 M Base cover [R-1501]  
PCOVPB096MRT0 M Base cover [R-1505]  
PCOVPB097MRT0 M Base cover [R-1506]  
CONTROL PANEL PARTS  
3- 1  
3- 1A  
3- 1B  
3- 1C  
3- 1D  
C1  
CPWBFB060MRU0 M Control unit  
1
1
1
1
1
1
1
1
1
4
7
1
1
2
1
2
1
3
BF  
AA  
AA  
AB  
AB  
AB  
AF  
AB  
AK  
AD  
AA  
AA  
AB  
AB  
AA  
AG  
AG  
AG  
QCNCMA017JDZZ M 3-pin connector CN-A  
QCNCMA448DRE0 M 5-pin connector CN-B  
QCNCMA275DRE0 J 2-pin connector CN-E  
FW-VZB189MRE0 M Lead wire harness CN-C  
RC-KZA087DRE0 J Capacitor  
VCEAB31VW108M J Capacitor  
VCEAB31VW106M J Capacitor  
RC-QZB014MRE0 M Capacitor  
RH-DZA006PRE0 J Diode (1N4002)  
0.1 uF  
1000 uF  
10 uF  
50V  
35V  
35V  
C2  
C21  
C100  
D1-4  
7 uF 230V  
D20-26 VHD1SS270A/-1 J Diode (1SS270A)  
D40  
Q21  
R1-2  
R30  
RY1-2  
RY3  
RY4-6  
VHD1SS270A/-1 J Diode (1SS270A)  
VSKRC243M//-3 J Transistor (KRC243M)  
VRS-B13AA751J J Resistor  
VRD-B12EF332J J Resistor  
RRLY-A113DRE0 M Relay (DU24D1-1PR(M))  
RRLY-A123DRZZ M Relay (G5S-1 24V)  
RRLY-B004MRE0 M Relay (FTR-F3AA024E)  
750 ohm 1W  
3.3k ohm 1/4W  
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R-1500  
R-1501  
R-1505  
R-1506  
REF. NO.  
PART NO.  
§
DESCRIPTION  
Q'TY CODE  
SP1  
RALM-A014DRE0 J Buzzer (PKM22EPT)  
RTRNPB017MRE0 M Transformer  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
5
AG  
BG  
AE  
AZ  
AZ  
AZ  
AZ  
AQ  
AQ  
AQ  
AQ  
AE  
AE  
AE  
AE  
AC  
AC  
AC  
AC  
AA  
AF  
AR  
AB  
T1  
VRS1  
3- 2  
3- 2  
3- 2  
3- 2  
RH-VZA032DRE0 J Varistor (10G471K)  
FPNLCB372MRK0 M Control panel sub. assembly [R-1500]  
FPNLCB373MRK0 M Control panel sub, assembly [R-1501]  
FPNLCB372MRK0 M Control panel sub. assembly [R-1505]  
FPNLCB373MRK0 M Control panel sub, assembly [R-1506]  
3- 2-1 FUNTKB320MRE0 M Key unit [R-1500]  
3- 2-1 FUNTKB321MRE0 M Key unit [R-1501]  
3- 2-1 FUNTKB320MRE0 M Key unit [R-1505]  
3- 2-1 FUNTKB321MRE0 M Key unit [R-1506]  
3- 2-2 JBTN-B106MRF0 M Open button [R-1500]  
3- 2-2 JBTN-B108MRF0 M Open button [R-1501]  
3- 2-2 JBTN-B106MRF0 M Open button [R-1505]  
3- 2-2 JBTN-B108MRF0 M Open button [R-1506]  
3- 2-3 JBTN-B107MRF0 M Select button [R-1500]  
3- 2-3 JBTN-B109MRF0 M Select button [R-1501]  
3- 2-3 JBTN-B107MRF0 M Select button [R-1505]  
3- 2-3 JBTN-B109MRF0 M Select button [R-1506]  
3- 2-4 MSPRTA050WRE0 M Button spring  
3- 3  
3- 4  
3- 5  
LHLD-B009MRF0 M LCD holder  
PSHEPB023MRE0 M LED sheet  
XEPSD30P10XS0 M Screw; 3mm x 10mm  
OVEN PARTS  
4- 1  
4- 2  
4- 3  
4- 4  
4- 5  
4- 6  
4- 7  
4- 8  
4- 9  
4-10  
4-11  
4-12  
4-13  
4-14  
4-15  
4-16  
4-17  
4-18  
4-19  
4-20  
4-21  
4-22  
LSTPPB038MRF0 M Door stopper  
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
2
2
1
1
1
1
1
AB  
AN  
AN  
AB  
AF  
AD  
--  
AA  
AF  
AS  
AC  
AB  
AC  
AG  
AH  
AB  
AD  
AQ  
AQ  
AH  
AC  
AC  
FROLPB025MRK0 M Turntable support assembly  
NTNT-A095WRE0 M Turntable tray  
LBNDKB009MRP0 M Capacitor holder  
PDUC-B111MRF0 M Magnetron duct  
MLEVPB016MRF0 M Open lever  
************* M Oven cavity (Not replaceable part)  
PPACGB014MRF0 M Turntable motor packing  
PHOK-B018MRF0 M Latch hook  
FANGTB005MRY0 M Unit mounting plate assembly  
NFANPB006MRE0 M Fan blade  
LBSHC0037WRE0 M Cord bushing  
MLEVFB007MRP0 M Mounting lever  
PDUC-B112MRP0 M Hood intake duct R  
PCOVPB085MRP0 M Waveguide cover  
MSPRTA046WRE0 M Latch spring  
LANGTB055MRP0 M Chassis support  
PDUC-B115MRF0 M Hood duct R  
PDUC-B114MRF0 M Hood duct L  
∆
∆
PDUC-B113MRP0 M Fan duct  
PDUC-B117MRF0 M Orifice  
PCUSGB043MRP0 M Transformer cushion  
DOOR PARTS  
∆ 5  
CDORFB279MRK0 M Door assembly [R-1500]  
CDORFB280MRK0 M Door assembly [R-1501]  
CDORFB283MRK0 M Door assembly [R-1505]  
CDORFB284MRK0 M Door assembly [R-1506]  
FDORFB070MRT0 M Door panel assembly  
FCOV-B186MRK0 M Door frame assembly [R-1500]  
FCOV-B187MRK0 M Door frame assembly [R-1501]  
FCOV-B191MRK0 M Door frame assembly [R-1505]  
FCOV-B192MRK0 M Door frame assembly [R-1506]  
LSTPPB021MRF0 M Latch head  
1
1
1
1
1
1
1
1
1
1
1
2
1
1
2
BD  
BD  
BD  
BD  
AW  
AY  
AY  
AY  
AY  
AD  
AB  
AC  
AG  
AE  
AA  
∆ 5  
∆ 5  
∆ 5  
∆ 5- 1  
∆ 5- 2  
∆ 5- 2  
∆ 5- 2  
∆ 5- 2  
∆ 5-2-1  
5-2-2  
MSPRTA046WRE0 M Latch spring  
5-2-3  
LSTPPB037MRF0 M Glass stopper  
∆ 5- 3  
GCOVHB044MRF0 M Choke cover  
5- 4  
PSHEPB021MRE0 M Sealer film  
5- 5  
XCPSD40P08000 M Screw : 4mm x 8mm  
MISCELLANEOUS  
6- 1  
CFZK-B460MRK0 M Installation material assembly  
LBSHC0040MRE0 M Grommet  
1
1
4
1
2
3
6
AH  
AC  
AC  
AB  
AA  
AA  
AA  
6-1-1  
6-1-2  
6-1-3  
6-1-4  
6-1-5  
6-1-6  
LX-BZ0195WRE0 M Toggle screw  
LX-MZB001MRE0 M Cord holder  
XBRSD50P60000 M Screw : 5mm x 60mm  
XOTSD40P12000 M Screw : 4mm x 12mm  
XTSSD50P35000 M Screw : 5mm x 35mm  
38  
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R-1500  
R-1501  
R-1505  
R-1506  
REF. NO.  
PART NO.  
§
DESCRIPTION  
Q'TY CODE  
6-1-7  
6-1-8  
6- 2  
6- 3  
6- 4  
6- 5  
6- 6  
6- 7  
6- 8  
6- 9  
6-10  
6-11  
6-12  
6-13  
6-14  
XWHSD50-16300 M Washer  
2
2
1
1
1
1
1
1
2
1
1
1
1
2
1
AA  
AD  
AB  
AD  
AB  
AB  
AT  
AT  
AA  
AA  
AB  
AT  
AE  
AF  
AH  
LANG-B002MRP0 M Scale plate  
TINSEB283MRR0 M Installation instruction  
TINSEB282MRK0 M Operation manual  
TINSKB075MRR0 M Top template  
TINSKB076MRR0 M Wall template  
QW-QZB025MRE0 M High voltage wire A  
FW-VZB187MRE0 M Main harness  
*
TCAUAB041MRR0 M DHHS service caution label  
TCAUAB037MRR0 M Monitor caution label  
TCAUAB005MRR0 M Revised DHHS/GRD C/label  
FW-VZB188MRE0 M Low voltage harness  
PFIL-B006MRE0 M Charcoal filter  
PFIL-B002MRE0 M Grease filter  
FFTA-B003MRK0 M Exhaust damper assembly  
SCREWS,NUTS AND WASHERS  
7- 1  
7- 2  
7- 3  
7- 4  
7- 5  
7- 6  
7- 7  
7- 8  
7- 9  
7-10  
LX-CZB004MRE0 M Special screw  
XOTSE40P12000 M Screw : 4mm x 12mm  
XOTSD40P12000 M Screw : 4mm x 12mm  
XBPSD40P08000 M Screw : 4mm x 8mm  
LX-CZA038WRE0 M Special screw  
LX-CZ0052WRE0 M Special screw  
LX-BZ0081YBE0 M Screw : 4mm x 8mm  
XCPSD30P08000 M Screw : 4mm x 8mm  
LX-BZA041WRE0 M Special screw  
XCBSD30P08000 M Screw : 3mm x 8mm  
3
4
AA  
AA  
AA  
AA  
AA  
AA  
AA  
AA  
AA  
AA  
18  
2
6
2
4
2
1
1
HOW TO ORDER REPLACEMENT PARTS  
To have your order filled promptly and correctly, please furnish the following information.  
1. MODEL NUMBER  
2. REF. NO.  
3. PART NO.  
4. DESCRIPTION  
Order Parts from the authorized SHARP parts Distributor for your area.  
Defective parts requiring return should be returned as indicated in the Service Policy.  
6-13  
GREASE FILTER (x 2)  
TOP TEMPLATE  
4-3  
TURNTABLE TRAY  
PACKING AND ACCESSORIES  
6-4  
6-5  
TOP PAD  
SPADBB041MRE0  
WALL TEMPLATE  
6-2 INSTALLATION INSTRUCTION  
6-3  
DOOR PROTECTOR  
SPADP0221MRE0  
OPERATION MANUAL  
6-1 INSTALL MATERIAL ASSEMBLY  
WRAP COVER  
SSAKH0103MRE0  
6-14 EXHAUST DAMPER  
ASSEMBLY  
ACCESSORY PACK  
SSAKAB004MRE0  
BOTTOM PAD  
SPADBB042MRE0  
Non-replaceable items  
PACKING CASE  
SPAKCB320MRR1 [R-1500]  
SPAKCB320MRR2 [R-1501]  
SPAKCB320MRR3 [R-1505]  
SPAKCB320MRR4 [R-1506]  
Download from Www.Somanuals.com. 3Al9l Manuals Search And Download.  
R-1500  
R-1501  
R-1505  
R-1506  
6
4
5
2
1
3
OVEN AND CABINET PARTS  
6-1-5  
6-14  
A
B
C
D
E
F
A
B
C
D
E
F
4-10  
7-3  
2-1  
7-3  
7-5  
7-3  
2-5  
7-3  
7-5  
1-12  
4-12  
7-5  
4-19  
7-5  
1-14  
2-6  
7-3  
7-3  
7-3  
4-17  
4-16  
4-13  
4-18  
4-17  
2-4  
7-3  
6-10  
4-16  
2-2  
4-7  
7-8  
1-3  
6-12  
4-4  
1-15  
1-2  
7-9  
4-20  
7-4  
4-13  
7-1  
4-15  
6-9  
4-11  
1-8  
1-1  
7-6  
4-9  
4-5  
4-8  
1-9  
7-7  
1-4  
1-16  
6-8  
1-13  
4-21  
7-10  
1-10  
1-11  
4-3  
1-11  
1-7  
1-5  
4-14  
4-22  
1-10  
4-6  
2-8  
7-8  
1-6  
1-13  
7-3  
1-16  
4-2  
G
G
7-3  
2-3  
7-3  
7-2  
7-3  
7-3  
6-13  
2-7-2  
2-7-1  
6-13  
H
H
2-7  
7-2  
6
4
5
2
1
3
40  
Download from Www.Somanuals.com. All Manuals Search And Download.  
R-1500  
R-1501  
R-1505  
R-1506  
6
4
5
2
1
3
3-5  
CONTROL PANEL PARTS  
3-3  
3-4  
A
B
C
D
E
F
A
B
C
D
E
F
3-1  
3-2  
3-5  
3-5  
3-2-1  
DOOR PARTS  
4-1  
5
7-3  
3-2-3  
5-3  
3-2-2  
5-4  
3-2-4  
5-5  
5-1  
5-2-3  
5-5  
5-2-3  
5-2-1  
5-2-2  
5-2  
6-6  
6-7  
MISCELLANEOUS  
6-1  
6-1-1  
6-1-4  
6-1-5  
G
G
6-1-2  
6-1-3  
6-1-6  
6-11  
6-1-7  
6-1-8  
H
H
6
4
5
2
1
3
Download from Www.Somanuals.com. 4Al1l Manuals Search And Download.  
R-1500  
R-1501  
R-1505  
R-1506  
COPYRIGHT © 2001 BY SHARP CORPORATION  
ALL RIGHTS RESERVED.  
Nopartofthispublicationmaybereproduced, stored  
in retrieval systems, or transmitted in any form or by  
any means, electronic, mechanical, photocopying,  
recording, or otherwise, without prior written permis-  
sion of the publisher.  
'01 SHARP CORP. (8S1.730E) Printed in U.S.A  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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