File No :
SERVICE MANUAL
Microwave Oven
EM-F3400SW (U.S.A.)
Product Code No.
437 450 57
CAUTION
WARNING TO SERVICE TECHNICIANS
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING
SERVICING TO AVOID POSSIBLE EXPOSURE TO
EXCESSIVE MICROWAVE ENERGY
(a) Do not operate or allow the oven to be operated with the door open.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other
microwave source, and make repairs as necessary :
(1) Interlock operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and other damage),
(4) damage to or loosening of hinges and latches, (5) evidence of dropping or abuse.
(c) Before turning on microwave power for any service test or inspection within the microwave generating
compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity,
andconnections.
(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and
transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before
the oven is released to the owner.
(e) A microwave leakage check to verify compliance with the Federal performance standard should be performed
on each oven prior to release to the owner.
REFERENCE NO. SM-860304
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- TABLE OF CONTENTS -
Adjustment Procedures ...................................................
Specifications ..................................................................
Power Output Measurement ...........................................
Precautions and Repair Service Tips ..............................
Circuit Diagram ...............................................................
1
2
2
2
3
Test Procedures and Troubleshooting....................
4
10
14
20
21
~
~
~
Disassembly Instructions ....................................... 11
Exploded View and Parts List ................................ 15
Overall Circuit Diagram ..........................................
NOTE : If the interlock monitor circuit operates and at the
same time the fuse blows with the door opened,
besuretoreplacethecontrolcircuitboardbecause
relay2onthecontrolcircuitboard, thedoorsensing
switch and the electric circuit related on the
door sensing switch, which act as Secondary
Interlock Switch.
1. ADJUSTMENT PROCEDURES
TO AVOID POSSIBLE EXPOSURE TO MICROWAVE
ENERGY LEAKAGE, THE FOLLOWING
ADJUSTMENT OF THE INTERLOCK SWITCHES
SHOULD BE MADE ONLY BY AUTHORIZED
SERVICE PERSONNEL.
Door
Latch
The SANYO service center should have the designated
detector to measure the microwave energy leakage
after the repair or adjustment.
Lever Stopper
NOTE : Detector to be used at the service center is
NARDA 8100, 8200 or the equivalent.
Door
Sensing
Switch
PRIMARY INTERLOCK SWITCH, INTERLOCK
MONITOR SWITCH AND DOOR SENSING SWITCH
ADJUSTMENT
(Figure 1)
(1) Loosen 2 screws securing the lever stopper.
(2) Adjust the lever stopper position so that it is pushed
forward and pull backward until there is about zero
gap between the latch lever and switch body on the
primary interlock switch and at the same time there
is about zero gap between the door latch and the
switch body on the door sensing switch when the
door latch is securely locked.
Interlock
Monitor
Switch
Screws
(3) Tighten the lever stopper screws securely.
(4) Make sure the interlock monitor switch closes after
the primary interlock switch opens when the door
is opened very slowly, according to “CHECKOUT
PROCEDURE FOR SWITCHES” on page 6.
(5) Make sure the interlock monitor switch opens before
the primary interlock switch closes when the door is
closed very slowly, according to “CHECKOUT
PROCEDURE FOR SWITCHES” on page 6.
(6) Make sure the microwave energy leakage should be
no greater than 4mW/cm2 to allow for measurement
uncertainty when measured with a detector.
(All service adjustments must be made for
minimum microwave energy leakage readings.)
Primary
Interlock
Switch
Latch
Lever
Figure 1
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4. PRECAUTIONS AND REPAIR SERVICE TIPS
2. SPECIFICATIONS
PRELIMINARY
Rated Power Consumption .. 1480W.
Microwave Output ................ 1050W.
Frequency ............................. 2,450MHz 50MHz.
Power Supply........................ 120V 12V, 60Hz.
Rated Current ....................... 12.9 Amp.
Safety Devices ..................... Thermal Fuse open at
332°F (167°C) for Cavity.
A. SINCE NEARLY 2,000 VOLTS EXISTS IN SOME CIR-
CUITS OF THIS MICROWAVE OVEN, REPAIRS SHOULD
BE CARRIED OUT WITH GREAT CARE.
B. TO AVOID POSSIBLE EXPOSURE TO MICROWAVE
ENERGY LEAKAGE, THE FOLLOWING PRECAUTIONS
MUST BE TAKEN BEFORE SERVICING.
Thermal Protector open at
252°F (122°C) for Magnetron.
(1) Before the power is applied :
(a) Open and close door several times to make sure the
primary interlock switch, the interlock monitor switch
and the door sensing switch operate properly.
(Listen for the clicking sound from the switches).
Make sure the interlock monitor switch closes after
the primary interlock switch is opens when the door
is opened. (See pages 1 and 6).
Fuse (Cartridge Type 20A)
Primary Interlock Switch,
Door Sensing Switch and
Relay 2.
Interlock Monitor Switch.
Timer ..................................... Electronic Digital, up to
99 min. 99 sec.
OverallDimensions ................ 205/8”(W) x 161/2”(D) x 113/8”(H)
Oven Cavity Size .................. 133/4”(W) x 145/8”(D) x 81/2”(H)
(b) Make sure the perforated screen and the choke die-
lectric of the door are correctly mounted.
Turn Table Diameter.............. 107/8
Effective Capacity of
”
(2) After the power is applied :
(a) Open and close the door to see if the interlock mech-
anism operates properly.
Oven Cavity .......................... 1.1 Cubic Feet.
Net Weight ........................... Approx. 34.5 Lbs.
(b) Check microwave energy leakage with a leakage
detector and confirm the energy leakage should be
no greater than 4mW/cm2 to allow for measurement
uncertainty.
3. POWER OUTPUT MEASUREMENT
NOTE
(3) Do not operate the unit until it is completely repaired,
if any of the following conditions exists :
The power output specification, 1050W. on this model is
measured with IEC measurement. The power output is
measured with two (2) liters water is equivalent to 1050W.
in measurement with IEC, when measured with the following
power output.
(a) Door does not close firmly against the cavity front.
(b) The hinge is broken.
(c) The choke dielectric or the door seal is damaged.
(d) The door is bent or warped, or there is any other
visibledamagetotheoventhatmaycausemicrowave
energyleakage.
(1) Fill two beakers (glass or plastic) with each one liter of
tapwater(about20°C)andmeasurethewatertemperature.
(Use a thermometer with a 1/10 degree gauge).
NOTE : Always keep the seal clean.
(e) Make sure that there are no defective parts in the
interlock mechanism.
(2) Place the beakers side by side in the center of the glass tray.
(3) Close the door, set the “TIME” for two minutes. (“200” in
the display window). Touch the “START” key and heat
the water exactly for two minutes.
(f) Make sure there are no defective parts in the
microwave generating and transmission assembly.
(especially waveguide).
(4) Take the beakers out, immediately stir the water and
measure the water temperature respectively.
(4) The following items should be checked after the unit
is repaired :
(5) Calculate the temperature rise of water in each beaker.
Then calculate the average value of two temperature rises.
Output power can be calculated by the equation :
Power Output (W) = 70 x ∆t
(a) The interlock monitor switch is connected correctly
and firmly.
(b) The magnetron gasket on the magnetron is properly
positioned.
Where ∆t is an average temperature rise in degrees
Centigrade.
(c) Waveguide and oven cavity are intact (no leakage of
microwaveenergy).
(6) Power Output shall be in the following range :
(d) The door can be properly closed and the safety
switches work properly.
Average Temperature Rise
19.6°F (10.9°C)
Power Output
763W
Minimum
Maximum
(e) The oven must be stopped when the door is opened
or the time is up.
20.0°F (14.0°C)
980W
(7) Power Output is affected by the line voltage under load.
For correct Power Output measurement, the line voltage
under load must be 120 1 volts.
The oven must not be operated with any of the above
components removed or bypassed.
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5. CIRCUIT DIAGRAM
Figure 2
SECONDARY INTERLOCK
PRIMARY
INTERLOCK
SWITCH
INTERLOCK
MONITOR
SWITCH
DOOR
SENSING
SWITCH
RELAY 2
SWITCH MADE
CONDITION
•
COM
NO
COM
NC
COM
NO
COM
NO
DOOR OPEN
DOOR CLOSE
•
•
•
•
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Filament Windings
6. TEST PROCEDURES AND TROUBLESHOOTING
CAUTION
- DISCONNECT THE POWER SUPPLY CORD FROM
THE WALL OUTLET WHENEVER REMOVING THE
CABINET FROM THE UNIT, PROCEED WITH THE
TESTS ONLY AFTER DISCHARGING THE HIGH
VOLTAGE CAPACITOR AND REMOVING THE LEAD
WIRES FROM THE PRIMARY WINDING OF THE
HIGH VOLTAGE TRANSFORMER. (SEE FIGURE 3)
Secondary
Windings
Primary
Windings
A. TEST PROCEDURES
Figure 3
COMPONENT
CHECKOUT PROCEDURE
RESULT
1) Check for resistance : Across the filament
terminals of the Magnetron with an Ohm-Meter
on R x 1 scale.
Normalreading :
Less than 1 Ohm.
Ohm-Meter
Figure 4
MAGNETRON
2) Check for resistance : Between each filament
terminal of the Magnetron and the chassis
ground with an Ohm-Meter on highest scale.
Normal reading :
Infinite Ohms.
Ohm-Meter
Figure 5
1) Measure the resistance :
With an Ohm-Meter on R x 1 scale.
a. Primary winding :
Normal readings :
Approximately 0.38 Ohms.
Less than 1 Ohm.
b. Filament winding :
c. Secondary winding :
Approximately 82.0 Ohms.
2) Measure the resistance :
Normal readings :
With an Ohm-Meter on highest scale.
a. Primary winding to ground.
HIGH-VOLTAGE
TRANSFORMER
Infinite Ohms.
Infinite Ohms.
b
Filament winding to ground.
Ohm-Meter
Figure 6
Note : Remove varnish of
measured point.
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COMPONENT
CHECKOUT PROCEDURE
RESULT
Measure the resistance : Across two terminals
with an Ohm-Meter on highest scale.
Normalreading :
Momentarily indicates several Ohms,
and gradually returns to 10 Meg-Ohms.
HIGH-VOLTAGE
CAPACITOR
including
Abnormal reading :
Indicates continuity or 10 Meg-Ohms
from the beginning.
BLEEDER
RESISTOR
Ohm-Meter
Figure 7
Measure the resistance : Across two terminals
with an Ohm-Meter on R x 10,000 scale.
Normalreading :
Indicates about the middle position in
one direction (forward direction) and
infinite ohms in the reverse direction,
using meter which is provided with a
9 volt battery.
Ohm-Meter
NOTE
HIGH-VOLTAGE
DIODE
-
Some digital meter may show over
even in a forward direction because
low measuring voltage of meter does
not allow the meter current to pass
through the High Voltage Diode.
Abnormal reading :
Indicates continuity or infinite Ohms
in both directions.
Figure 8
Measure the voltage : Between test point TP-1,
TP-2 and Ground. (See Control Circuit Board on
page 19).
Test
Point
TP-1
TP-2
CONTROL
CIRCUIT
BOARD
NOTE
-5V
DC
-15V
DC
Voltage
- Proceed with the check of the Step-Down
Transformer, to see if any one of the measured
values is different from the specified values.
- 5 -
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COMPONENT
CHECKOUT PROCEDURE
RESULT
When
touched
When not
touched
Measure the resistance between terminals of
FPC connector after removing it from S101.
(Figure 9).
Resistance
value
Less than Morethan
1K Ohms 1 MEG Ohms
TOUCH KEY
BOARD
NOTE
- When reconnecting the FPC connector, make
sure the holes on the connector are properly
inserted in hooks of the plastic fastener in S101.
When checking “START” key, connect
Ohm-Meter as illustration below.
Ohm-Meter
MATRIX CIRCUIT FOR
TOUCH KEY BOARD
FPC CONNECTOR
MORE +
LESS -
POWER
LEVEL
SOUP /
0
6
5
BEVERAGE
TOTAL
QUICK
ON
POTATO
DEFROST
1
2
7
8
QUICK
DEFROST
FROZEN
ENTREE
KITCHEN
TIMER
PIZZA
SLICE
ADD
FROZEN
START
3
4
9
VEGETABLE
30 SEC
STOP /
CLEAR
CUSTOM
FRESH
CLOCK POPCORN
PROGRAMS
VEGETABLE
TERMINALS OF FPC CONNECTOR
Figure 9
CHECKOUT PROCEDURE FOR SWITCHES
Disconnect the lead wires from the switches and check for the continuity of the switches, connecting an Ohm-Meter
to its terminals.
SWITCHES
CHECKOUT PROCEDURES
DOOR OPEN
DOOR CLOSED
(See Figure 1 on page 1)
Primary Interlock
Terminals “COM” and “NO”
Terminals “COM” and “NC”
Door Sensing
Interlock Monitor
CAUTION
:
After checking the switches, make sure that the interlock monitor switch is properly connected according
to the CIRCUIT DIAGRAM on page 3.
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7. DISASSEMBLY INSTRUCTIONS
•
OVEN MUST BE DISCONNECTED FROM ELECTRICAL
OUTLET WHEN MAKING REPLACEMENTS, REPAIRS,
ADJUSTMENTS AND CONTINUITY CHECKS BEFORE
PROCEEDING WITH ANY REPAIR WORK. AFTER
DISCONNECTING, WAIT AT LEAST 1 MINUTE, UNTIL
THE CAPACITOR IN THE HIGH-VOLTAGE AREA
HAS FULLY DISCHARGED.
B. REMOVING PRIMARY INTERLOCK SWITCH AND
INTERLOCK MONITOR SWITCH
(Figure 10-b)
(1) Disconnect all wire leads from primary interlock and
Interlock monitor switch.
•
WHEN REPLACING ANY DOOR MICROSWITCH,
REPLACE WITH THE SAME TYPE SWITCH SPECIFIED
ON THE PARTS LIST.
(2) Pull the primary interlock switch or Interlock monitor
switch upward at the same time while pushing the
switch stoppers to allow a space between the
switch body and catches.
A. REMOVING DOOR SENSING SWITCH
(Figures 1 on page 1, 10-a)
(3) Make necessary adjustments or replacement of
switch by the reversing step (2) and check micro-
wave energy leakage according to “1. ADJUSTMENT
PROCEDURES” on page 1, after it is replaced with
new one, and check proper operation of it according
to “CHECKOUT PROCEDURE FOR SWITCHES” on
page 6.
(1) Disconnect all wire leads from the door sensing
switch. (Figure 1 on page 1)
(2) Remove 2 screws securing the lever stopper.
(3) Push the door sensing switch upward while pressing
adjacent upper switch stopper of lever stopper and
lower switch stopper down (Figure 10-a).
Switch Stoppers
(4) Then remove it by lightly pressing the switch toward
you (Figure 10-a).
(5) Make necessary adjustments or replacements of the
door sensing switch by reversing step (3) and check
microwave energy leakage according to “1.
ADJUSTMENT PROCEDURES” on page 1, after it is
replaced with new one, and check proper operation
of it according to “CHECKOUT PROCEDURE FOR
SWITCHES” on page 6.
Interlock
Monitor
Switch
Primary
Interlock
Switch
Upper
Switch
Stopper
Door
Sensing
Switch
Switch Stoppers
Figure 10-b
Interlock Switch Replacement - when replacing
faulty switches, be sure switch mounting tabs are
not bent, broken or otherwise deficient in their
ability to secure the switches in place.
Lower
Switch
Figure 10-a
Stopper
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C. REMOVING BLOWER MOTOR
(Figures 11 (Top View) and 12).
Duct (mag. exhaust)
Blower Base
(1) Remove screw securing the stay.
(2) Disconnect all lead wires from the blower motor
and H.V. capacitor.
Thermal Protector
Screw
(3) Remove 3 screws securing the blower base and
disengage 3 hooks from the rear plate of cavity
(Figure 12).
(4) Remove 1 screw securing the blower motor with
the blower base.
D. REMOVING MAGNETRON
(Figure 11 (Top View))
Duct (mag. intake)
Stay
After removing the blower motor :
Figure 11 (Top View)
(1) Remove duct (mag. exhaust). Remove the screw
securing the stay.
(2) Remove 1 screw securing the thermal protector.
(3) Disconnect 2 lead wires from the magnetron.
(4) Remove 4 screws securing the magnetron to the
waveguide.
(5) Take out Magnetron VERY CAREFULLY.
Screw
NOTE
1. When removing the magnetron from the cavity or
wave guide, use a proper care so that the dome of
the magnetron does not hit any adjacent parts of
microwave oven.
2. Make sure that the contact face of the magnetron
gasket is free from any damage or deformation.
Hook
3. Adjust the position of the magnetron properly, so
that it correctly sits in place and the magnetron
gasket is in contact with the mounting rim evenly.
4. While holding the magnetron under this condition,
tighten mounting screws or nuts with your fingers
temporarily.
5. Further tighten the screws or nuts with a box
wrench, giving one or two turns to each of the
screws (or nuts) alternatively so that the
Blower Motor
Figure 12
magnetron is mounted on to the bracket uniformly.
6. After replacing the magnetron, be sure to check the
microwave energy leakage with a leakage detector
and confirm the leakage is below 4mW/cm2.
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E. REMOVING FUSE
Remove the 20A fuse with a screwdriver.
NOTE
-- When replacing the 20A fuse, be sure to use an exact
repair part.
Control Base
-- If the 20A fuse blows immediately, check the primary
interlock switch, the relay 2 (on the control circuit board)
and the interlock monitor switch according to,
“CHECKOUT PROCEDURE FOR SWITCHES” on page 6.
And make sure to check the microwave energy leakage
according to, “1. ADJUSTMENT PROCEDURES” on page
1, when the primary interlock switch, the relay 2 or the
interlock monitor switch is adjusted or replaced.
-- If the primary interlock switch, the relay 2 and the interlock
monitor switch operate properly, determine which of the
following is defective : control circuit board, blower motor,
high voltage transformer, high voltage capacitor, high voltage
diode or magnetron.
F. REMOVING CONTROL CIRCUIT BOARD
(See exploded view on page 18 and Figure 13)
(1) Remove the connector S1, S102 and the connector for
the relay 2 from the control circuit board.
Control Frame
Figure 13
(2) Remove 1 screw securing the control panel complete to
the oven cavity.
Control Sheet
Control Frame
(3) Remove the FPC connector from the connector S101
while grasping up both lever ends of the plastic fastener.
(4) Remove 2 screws securing the control circuit board to
the control base.
(5) Lift up the control circuit board from its lower side and
take it out from the control base.
Touch Key
Board
G. REMOVING TOUCH KEY BOARD
(Figure 14)
After removing the control circuit board :
(1) Remove control base while lifting it up at the right side
and take it out from the control frame.
(2) Remove control sheet which is glued to touch key board.
(3) Remove the touch key board which is held on the control
base bracket with the adhesive tape.
Figure 14
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H.REMOVING DOOR
J. REMOVING CAVITY COVER
(Figure 16)
(1) Remove 2 hex nuts securing the upper hinge.
(2) Tilt the top of the door toward you.
(3) Lift up the door to remove it.
(1) Remove a screw from the cavity compartment.
NOTE
- After replacing the door, be sure to check that the
primary interlock switch, the door sensing switch
and the interlock monitor switch operate normally.
(See page 1).
Cavity Cover
- After replacing the door, check for microwave energy
leakage with a leakage detector. Microwave energy
leakage must be below the limit of 4mW/cm2 to
allow for measurement uncertainty.
Screw
I. DISASSEMBLING DOOR
(Figure 15)
Figure 16
(1) Insert a thin flat-blade screwdriver between the
choke dielectric and the door main frame and lift
up the choke dielectric to release hooks one by
one. (Figure 15).
(2) Remove the choke dielectric.
K. REMOVING TURNTABLE MOTOR COVER
(Figure 17)
(3) To detach the door cover, insert a thin flat-blade
screwdriver between door cover and door panel
and release the projections inside door cover.
(1) Turn over the oven on its back.
(2) Cut the 6-joints of the bottom plate using diagonal
pliers (nipper).
(4) To detach the door panel, insert a thin flat-blade
screwdriver between the door cover and door
main frame.
(3) Separate the motor cover from bottom plate.
Hooks
(4) Remove 2 screws securing turntable motor to the
cavity and take it out.
Note : Bent the cut joints inside slightly for safety
and be careful of sharp edge.
Motor Cover
Hooks
6 Joints
Hooks
Door
Bottom Plate
Main
Frame
Choke
Dielectric
Hooks
Figure 15
NOTE
- The choke dielectric may be damaged when
it is removed. When reinstalling it replace it
with new ones if it is damaged.
- After installing the door in place, check for
microwave energy leakage with a detector.
Microwave energy leakage must be below the
limit of 4mW/cm2 to allow for measurement
uncertainty.
Figure 17
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8. EXPLODED VIEW AND PARTS LIST
CAVITY PARTS
* * * ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED
BY A TRIPLE ASTERISK (***).
Key
No.
Key
No.
Part No.
Description
Q’ty
Part No.
Description
Q’ty
1
2
3
4
5
6
7
8
617 228 8321
411 082 5201
411 160 6007
617 171 6863
411 160 6106
617 228 8345
617 221 3590
411 010 5808
617 138 5601
617 221 6089
411 011 0802
617 180 6137
411 089 2500
Cabinet
1
8
2
1
1
1
1
2
1
4
2
1
1
14
15
16
17
18
19
20
21
22
23
24
25
26
617 120 8481
617 220 9401
617 204 9489
617 073 5889
617 204 9403
617 162 1938
411 069 1707
411 006 6604
617 200 0381
617 080 5315
Insulation Sheet
Turn Table Shaft
Roller Base Assy
Rotating Tray
AntennaComplete
Cavity Cover
SCR TPG TRS 4 x 6 DA
SCR TPG PAN 3 x 6 Z1
Thermal Fuse 167oC
Special Washer
1
1
1
1
1
1
1
1
1
1
SCR TPG TRS 4 x 10 Z1
SCR TPG TRS + SRT 4 x 10 Z1
PowerCord
SCR S-T TRS + SRT 4 x 10 Z1
Oven Cavity*** (Not Service Part)
Gear Motor
SCR EVR PAN 4 x 10 Z1
Bottom Plate*** (Not Service Part)
Plastic Foot with Canoe Clip
Bolt Hex + SW + W5 x 14 Z1***
Hinge, Lower***
9
10
11
12
13
Washer F 5 x 10 x 0.8
617 229 9013
Special Screw
2
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SWITCHES AND MICROWAVE PARTS
*** ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED
BY A TRIPLE ASTERISK (***).
Key
No.
Key
No.
Part No.
Description
Q’ty
Part No.
Description
Q’ty
1
2
3
4
5
6
7
8
411 082 5201
617 229 9020
617 199 8283
411 006 6604
617 129 1001
415 002 9508
423 020 3408
617 233 0006
617 221 3606
617 162 1990
617 197 6670
SCR TPG TRS 4 x 10 Z1
H.V Transformer,*** N6T-P410
Stay, Cavity & Magnetron
SCR TPG PAN 3 x 6 Z1
Thermostat, Magnetron 135oC
Magnetron, 2M253H(M)N***
Fuse, 125V 20A
Fuse Holder
Lead Wire Ass’y (including Diode)
Blower Base
H.V Capacitor including Resistor,
0.97uf 2.2KV
Capacitor Band
Bolt Hex 4 x 10 Z1
Duct, Mag. Exhaust
9
1
1
1
1
1
1
1
1
1
1
17
18
19
20
21
617 197 7417
411 082 5201
617 196 8507
617 245 6256
617 221 4078
Blower Motor
SCR TPG TRS 4 x 10 Z1
Blower Fan
Latch Lever***
Micro Switch,*** Primary Interlock
AM51630C53F2
Micro Switch,*** Interlock Monitor
AM50620C53
Micro Switch,*** Door Sensing
AM51630C53F2
1
2
1
1
1
22
23
617 221 4061
617 221 4078
1
1
9
10
11
24
25
26
27
28
29
617 245 6096
411 102 5907
411 129 5805
617 117 3505
617 124 3796
Lever Stopper***
1
2
1
1
1
12
13
14
15
16
617 182 2373
411 011 5609
617 229 7903
617 005 5147
617 230 2713
1
4
1
1
1
SCR ETG TRS 4 x 10 N2
SCR TPG BIN 3 x 10 Z1
Harness, Door Sensing
Lead Wire Ass’y
Lamp, 120V 20W
Lamp Socket
- 16 -
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DOOR PARTS
* * * ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED
BY A TRIPLE ASTERISK (***).
Key
No.
Key
No.
Part No.
Description
Q’ty
Part No.
Description
Q’ty
1
2
3
617 229 2403
617 181 4170
617 229 2007
Door Cover***
Door Panel***
Door Main Frame*** (Also
order Door Sheet when replacing
Door Main Frame)
1
1
1
5
6
7
8
9
10
617 222 0123
411 054 1903
617 180 6151
411 011 0802
617 101 1494
617 179 2478
Door Sheet
Nut Hex + Flg W / SRT 5***
Hinge, Upper***
Bolt Hex + SW + W 5 x 14***
Spring***
Door Latch***
1
2
1
2
1
1
4
617 124 0948
Choke Dielectric***
1
- 17 -
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CONTROL PANEL PARTS
* * * ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED
BY A TRIPLE ASTERISK (***).
Key
No.
Key
No.
Part No.
Description
Q’ty
1
Part No.
Description
Q’ty
1
2
3
617 230 7787
Control Sheet*** (Also order
Touch Key Board when replacing
Control Sheet)
Touch Key Board*** (Also order
Control Sheet when replacing
Touch Key Board)
4
5
6
7
8
9
617 151 4377
411 160 6205
617 230 2324
411 129 5805
617 080 9559
617 229 3691
Control Base***
1
1
1
1
1
1
SCR TPG TRS+SRT 4 x 10 Z1
Power & Control Circuit Board***
SCR TPG BIN 3 x 10 Z1
Spring, Door Release Lever***
Door Release Lever***
617 233 5872
617 229 3646
1
1
Control Frame***
PRINTED MATTER (Items Not Illustrated)
Key
Part No.
Description
Q’ty
1
No.
617 232 7594
Operating Instructions
(English / Spanish)
Carton Box Complete
NamePlate
617 230 9095
617 230 7664
1
1
- 18 -
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CONTROL CIRCUIT BOARD
(Part No. 617 230 2324)
- 19 -
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CONTROL CIRCUIT BOARD
(Part No. 617 230 2324)
KeyNo.
OrderPartNo.
Description
Q’ty
KeyNo.
OrderPartNo.
Description
Q’ty
1
RESISTORS.
INTEGRATED CIRCUIT
R901,906, 401 037 5608 MT-Glaze, 10Kohms
909
3
1
4
1
1
2
4
1
1
2
1
5
IC11
409 468 0209 IC LM8847B-1A43.
+-1%, 10W.
R903
401 038 3603 MT-Glaze,3.3Kohms
+-1%, 10W.
TRANSISTORS
R902,905, 401 038 6406 MT-Glaze,4.7Kohms
907, 908
R904
Q901
405 138 8506 TR FMA9A.
405 035 4809 2SC1685-Q-TP.
405 082 4609 DTA123YS-TP.
1
1
2
+-1%, 10W.
Q103
401 039 0304 MT-Glaze, 820ohms
+-1%, 10W.
Q101,102
R106
401 012 4404 Carbon, 100ohms
+-5%, 1/4W.
R101,112 401 012 5609 Carbon,1Kohms
+-5%, 1/4W.
R11 14
~
401 013 4106 Carbon, 120ohms
+-5%, 1/4W.
DIODES
D11
R58
401 013 6308 Carbon, 12Kohms
+-5%, 1/4W.
407 012 0200 1N4002-TP.
407 012 4406 1SS133-T77.
1
7
D101 106
~
R105
401 016 4707 Carbon, 22Kohms
+-5%, 1/4W.
108
ZD101
ZD11
407 132 2306 HZS3.9ENB2.
407 056 8507 RD5.1ESB2.
1
1
R107,108 401 016 9603 Carbon,27ohms
+-5%, 1/4W.
R109
401 018 2701 Carbon, 330ohms
+-5%, 1/4W.
R103,104, 401 020 2805 Carbon, 47Kohms
51 53
~
+-5%, 1/4W.
RESISTOR BLOCK
CAPACITORS
RB101
RB902
RB901
617 010 3558 Resistor Network
402 080 7700 MT-Glaze, 10K x 4
401 083 2108 MT-Glaze, 4.7K x 7
1
1
1
C104, 105, 403 069 1207 Ceramic, 1000PK,
108 +-5%, 50V.
3
3
1
1
1
C103, 106, 403 142 5306 Ceramic,0.01mfd,
107
+-5%, 50V.
C101
403 049 2606 Electrolytic,1mfd,
+-20%, 50V.
MISCELLANEOUS
BZ1
420 000 6800 Buzzer, PKM22EPT.
1
1
1
1
1
1
1
1
1
1
C12
C11
403 105 3806 Electrolytic, 47mfd,
+-20%, 10V.
VST1
LCD1
RL1
407 118 5505 Varistor ENC 471D-10A.
617 209 2218 DisplayTube.
403 152 7208 Electrolytic, 1000mfd,
+-20%, 25V.
617 201 3978 Relay,G5N-1A-DC12.
617 141 0549 Relay, DU12D1-1PR.
617 128 3372 CeramicOscillator.
617 169 4109 Connector.
RL2
RS1
S1
S101
S102
PT1
617 126 8959 Connector.
617 111 1392 Connector.
617 230 4984 Step-DownTransformer.
P6K-P410
2
617 178 4268 PartBase.
617 132 5744 Noise Filter.
617 079 4299 Jumper.
1
2
7
JB1, 2
J9 13
~
16, 17
J101 103 617 079 4237 Jumper.
3
~
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9. OVERALL CIRCUIT DIAGRAM
- 21 -
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