JVC AV 27F713 User Manual

AV-27F703  
AV-27F713  
AV-27F803  
SERVICE MANUAL  
COLOR TELEVISION  
BASIC CHASSIS  
/S  
AV-27F703  
GJ  
(No.A111)  
/S  
AV-27F713  
AV-27F803/S  
[RM-C325G]  
RM-C326G  
AV-27F803  
RM-C326  
AV-27F703  
AV-27F713  
CONTENTS  
! SPECIFICATIONS 2  
!
!
・・・  
SAFETY PRECAUTIONS  
3
FEATURES4  
! HOW TO IDENTIFY MODELS 4  
・・・  
!
MAIN DIFFERENCE LIST  
5
! FUNCTIONS・・6  
! SPECIFIC SERVICE INSTRUCTIONS ・・8  
!
SERVICE ADJUSTMENTS 12  
! PARTS LIST ・・33  
OPERATING INSTRUCTIONS  
STANDARD CIRCUIT DIAGRAM ・・2-1  
1
No.52005  
Jun. 2002  
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.  
AV-27F703  
AV-27F713  
AV-27F803  
SAFETY PRECAUTIONS  
1. The design of this product c ontains spec ial hardware, many  
circuits and components s pecially for safety purposes. For  
continued protection, no changes should be made to the  
original des ign unless authorized in writing by the manufacturer.  
Replacement parts must be identic al to thos e used in the  
original circuits. Servic e should be performed by qualified  
pers onnel only.  
10. Isolation Check  
(Safety for Electrical Shock Hazard)  
After re-assembling the product, always perform an isolation  
check on the exposed metal parts of the c abinet (antenna  
terminals, video/audio input and output terminals, Control  
knobs, metal cabinet, screwheads, earphone jack, control  
shafts, etc.) to be sure the product is safe to operate without  
danger of electrical shoc k.  
2. Alterations of the design or circuitry of the products s hould not  
be made. Any design alterations or additions will void the  
manufacturer's warranty and will further relieve the  
manufacturer of respons ibility for pers onal injury or property  
damage resulting therefrom.  
(1) Dielectric Strength Test  
The is olation between the AC primary circuit and all metal parts  
exposed to the us er, particularly any exposed metal part having  
a return path to the chassis should withstand a voltage of  
1100V AC (r.m.s.) for a period of one sec ond.  
(. . . . Withstand a voltage of 1100V AC (r.m.s.) to an appliance  
rated up to 120V, and 3000V AC (r.m. s.) to an applianc e rated  
200V or more, for a period of one second.)  
3. Many electrical and mechanic al parts in the products have  
special safety-related c haracteris tics. These charac teristics are  
often not evident from visual inspection nor can the protection  
afforded by them necess arily be obtained by using  
replac ement components rated for higher voltage, wattage, etc.  
Replacement parts whic h have thes e special s afety  
characteristics are identified in the parts list of Service manual.  
Electrical components having such features are identified  
by shading on the schematics and by (!) on the parts list  
in Service manual. The use of a substitute replac ement which  
does not have the same safety characteristics as the  
recommended replac ement part shown in the parts list of  
Service manual may c aus e shock, fire, or other haz ards.  
4. Use isolation tr ansformer when hot chassis.  
This method of test requires a test equipment not generally  
found in the service trade.  
(2) Leakage Current Check  
Plug the AC line c ord directly into the AC outlet (do not use a  
line is olation transformer during this check.). Using a "Leakage  
Current Tester", measure the leakage current from each  
exposed metal part of the cabinet, partic ularly any exposed  
metal part having a return path to the chassis, to a known good  
earth ground (water pipe, etc.). Any leakage current must not  
exceed 0. 5mA AC (r.m. s.).  
The chassis and any sub-chassis contained in some products  
are c onnected to one side of the AC power line. An isolation  
transformer of adequate capacity should be inserted between  
the product and the AC power supply point while performing  
any service on some products when the HOT chassis is  
exposed.  
However, in tropical area, this must not exc eed 0.2mA AC  
(r.m.s.).  
" Alternate Check Method  
Plug the AC line c ord directly into the AC outlet (do not use a  
line isolation transformer during this check.). Use an AC  
voltmeter having 1000 ohms per volt or more sensitivity in the  
5. Don't short between the LIVE side ground and ISOLATED  
(NEUTRAL) side ground or EARTH side ground when  
repairing.  
Ω
following manner. Connec t a 1500 10W resistor paralleled  
by a 0.15μF AC-type capacitor between an exposed metal  
part and a known good earth ground (water pipe, etc.).  
Measure the AC voltage across the resistor with the AC  
voltmeter. Move the resistor connection to each exposed metal  
part, particularly any exposed metalpart having a return path to  
the chassis , and measure the AC voltage across the resistor.  
Now, revers e the plug in the AC outlet and repeat each  
measurement. Any voltage measured must not exceed 0.75V  
AC (r.m.s.). This corresponds to 0.5mA AC (r.m.s.).  
Some model's power c ircuit is partly different in the GND. The  
"
differenc e of the GND is shown by the LIVE : ( ) side GND,  
the ISOLATED(NEUTRAL) : (#) side GND and EARTH : ($)  
side GND. Don't short between the LIVE side GND and  
ISOLATED(NEUTRAL) side GND or EARTH side GND and  
never measure with a measuring apparatus (oscilloscope etc.)  
the LIVE side GND and ISOLATED(NEUTRAL) side GND or  
EARTH side GND at the same time.  
However, in tropic al area, this must not exceed 0.3V AC  
(r.m.s.). This corresponds to 0.2mA AC (r.m.s.).  
If above note will not be kept, a fuse or any parts will be broken.  
6. If any repair has been made to the chassis, it is recommended  
that the B1 setting should be chec ked or adjusted (See  
ADJUSTMENT OF B1 POWER SUPPLY).  
ACVOLTMETER  
(HAVING 1000Ω/V,  
7. The high voltage applied to the picture tube must conform with  
that specified in Service manual. Excessive high voltage can  
cause an increase in X-Ray emission, arcing and possible  
component damage, therefore operation under excess ive high  
voltage c onditions should be kept to a minimum, or should be  
prevented. If severe arc ing occurs, remove the AC power  
immediately and determine the cause by visual inspection  
(incorrect installation, crac ked or melted high voltage harness,  
poor s oldering, etc. ). T o maintain the proper minimum level of  
soft X-Ray emission, components in the high voltage circuitry  
including the picture tube must be the exact replacements or  
alternatives approved by the manufacturer of the complete  
product.  
OR MORE SENSITIVITY)  
GOOD  
EARTH  
GR OUND  
0.15μF AC-TYPE  
PLACE THIS PROBE  
ON EACH EXPO SED  
MET AL PART  
1500 10W  
Ω
11. High voltage hold down circuit check.  
After repair of the high voltage hold down circuit, this circuit  
shall be c hec ked to operate correctly.  
See item "How to check the high voltage hold down  
cir cuit".  
8. Do not c hec k high voltage by drawing an arc. Us e a high  
voltage meter or a high voltage probe with a VTVM. Discharge  
the picture tube before attempting meter connection, by  
connec ting a clip lead to the ground frame and connecting the  
other end of the lead through a 10kΩ 2W resistor to the anode  
This mark shows afast  
operating fuse, the  
letters indicated below  
show the rating.  
button.  
9. When service is required, observe the original lead dress.  
Extra precaution should be given to assure correct lead dres s  
in the high voltage c ircuit area. W here a short circuit has  
occurred, those c omponents that indic ate evidence of  
overheating should be replaced. Always use the  
manufacturer's replacement components.  
A
V
No. 52005  
3
AV-27F703  
AV-27F713  
AV-27F803  
FEATURES  
" New chas sis design enables use of a single board with simplified  
" Built-in V-CHIP system.  
" Clos ed-caption broadcasts can be viewed.  
" Built-in MTS sys tem, BBE / HYPER-SURROUND system.  
circuitry.  
" Users can make fun to connect the DVD player with the component  
video signal input terminal.  
"
S-VIDEO input terminal for taking best advantage of Super VHS.  
" Provided with miniature tuner (TV/CATV).  
" Multifunctional remote control permits picture adjustment.  
"
Digital Comb filter Improved picture quality.  
"
Built-in EZ SURF system.(AV-27F803)  
" Adoption of the CHANNEL GUARD function prevents the specific  
By pushing the EZ SURF key, Back Program Information can be  
displayed in written from program Information uses a CALL  
channels from being selected, unless the “ID numberis key in.  
2
"
I C bus control utilizes single chip ICs.  
LETTER (broadcasting station ID), a Network name and  
a
Program name of XDS data, and collect’s tuning of the tuner for  
PIP one by one.  
"
"
Adoption of the VIDEO STATUS / THEATER PRO. function.  
Adoption of the ON/OFF TIMER and SLEEP TIMER function.  
HOW TO IDENTIFY MODELS  
How to recognize from the appearance of the model concerned is written below. Please distinguish from several contents  
currently printed on the rating label.  
[RATING LABEL]  
Indicated  
AV-27F703  
AV-27F713  
AV-27F803  
Distinguish  
Please distinguish from several contents  
INDICATED “S”  
currently printed on the Rating Label.  
4
No.52005  
AV-27F703  
AV-27F713  
AV-27F803  
MAIN DIFFERENCE LIST  
!
Model name  
AV-27F703/S  
AV-27F713/S  
AV-27F803/S  
Parts Name  
MAIN PWB  
SGJ -1004A-M2  
SGJ -1003A-M2  
SGJ -1002A-M2  
SGJ -4001A-M2  
SGJ -5001A-M2  
SGJ 0Y001A-M2  
LC10878-003B-A  
CM48006-008-C  
LC20628-001C-A  
LC31237-001A-A  
LC31238-004A-A  
LC20217-004B-A  
LC20899-005A-A  
PIP PWB  
×
×
AV SEL PWB  
SGJ -5002A-M2  
×
×
3D Y/C SEP MODULE PWB  
FRONT CABI. ASSY  
JVC MARK  
!
LC10878-003B-A  
CM48006-008-C  
LC20628-001C-A  
LC31237-001A-A  
LC31238-004A-A  
LC20217-004B-A  
LC20899-004A-A  
LC10878-004A-A  
CM48006-009-C  
LC20628-002A-A  
LC31237-002A-A  
LC31238-005A-A  
LC20217-006A-A  
LC20899-004A-A  
!
!
DOOR  
KNOB (POWER)  
OPERATION SHEET  
CONTROL KNOB  
TERMINAL BOARD  
!
!
REMOCON UNIT  
INPUT TERMINAL  
RM-C326G-1A  
RM-C326-1A  
RM-C325G-1A  
INPUT1 INPUT3  
INPUT1 INPUT4  
No.52005  
5
AV-27F703  
AV-27F713  
AV-27F803  
FUNCTIONS  
FRONT PANEL CONTROL  
2
7
9
1
5
8
3
6
4
1INPUT3 VIDEO terminal  
6VOLUME -/+ buttons  
2
7
INPUT3 AUDIO L / MONO terminal  
SENSOR REMOTE CONTROL  
3INPUT3 AUDIO R terminal  
8ON TIMER LED  
4
5
9
MENU button (  
)
POWER button  
CHANNEL -/+ buttons  
OPERATE  
/
buttons (use MENU screen)  
REAR TERMINAL  
[
[
AV-27F703 /S, AV-27F713/S ]  
AV-27F803 /S ]  
1
2
1
2
3
3
4
4
5
5
6
AV-27F703/S, AV-27F713 /S  
]
AV-27F803/S  
]
[
[
1
2
3
INPUT  
terminals  
1
(S-VIDEO, V, L/MONO, R)  
1
INPUT 1 (S-VIDEO, V, L/MONO, R) terminals  
2INPUT 2 (V, L / MONO, R) terminals  
INPUT 2 (V, L / MONO, R) terminals  
/ COMPONENT VIDEO(Y, PB, PR) terminals  
B
R
/ COMPONENT VIDEO(Y, P , P ) terminals  
INPUT 4 (L, R) terminals  
/ COMPONENT VIDEO(Y, PB, PR) terminals  
3
4
AUDIO OUT(L, R) terminals  
AV COMPULINK  
4AUDIO OUT(L, R) terminals  
5 VHF / UHF terminal  
5
6
AV COMPULINK  
VHF / UHF terminal  
6
No.52005  
AV-27F703  
AV-27F713  
AV-27F803  
REMOTE CONTROL UNIT  
1TV / CATV switch  
2VCR / DVD switch  
316 : 9 MODE Key  
4POWER Key  
RM-C326G : AV-27F703/S  
RM-C326 : AV-27F713/S  
1
2
3
4
TV  
VIDEO1  
0
VIDEO2  
VIDEO3  
5INPUT Key (  
6DISPLAY Key  
)
15  
30 ……165  
180  
7SLEEP TIMER Key (  
)
8HYPER SUR. Key ( Can be changed ON / OFF )  
5
9VIDEO STATUS Key  
6
8
ATHEATER PRO key  
15  
7
9
BBBE key ( Can be changed ON / OFF )  
CMUTING Key  
17  
16  
18  
19  
10  
12  
DFUNCTION Key ( CH -/+ / VOL -/+ )  
11  
13  
The FUNCTION keys operate CHANNEL and VOLUME normally.  
These keys are also used to navigate MENU system.  
EMENU Key  
FNUMBERS Key  
G100+ Key  
14  
20  
21  
HRETURN+ Key  
ILIGHT Key  
JV-CHIP Key  
KEXIT Key  
LVCR / DVD Keys  
[RM-C325G : AV-27F803/S]  
1TV / CATV switch  
2VCR / DVD switch  
316 : 9 MODE Key  
4POWER Key  
1
2
3
4
23  
6
TV  
VIDEO1  
0
VIDEO2  
VIDEO3  
VIDEO4  
5INPUT Key(  
)
22  
16  
5
7
6DISPLAY key  
15  
30 ……165  
180  
15  
17  
7SLEEP TIMER Key (  
8HYPER SUR. Key ( Can be changed ON / OFF )  
)
8
9VIDEO STATUS Key  
9
ATHEATER PRO key  
18  
19  
10  
12  
BBBE key( Can be changed ON / OFF )  
CMUTING Key  
11  
13  
DFUNCTION Key ( CH -/+ / VOL -/+ )  
14  
20  
21  
The FUNCTION keys operate CHANNEL and VOLUME normally.  
These keys are also used to navigate MENU system.  
EMENU Key  
FNUMBERS Key  
G100+ Key  
HRETURN+ Key  
ILIGHT Key  
JV-CHIP Key  
KEXIT / PIP OFF Key  
LVCR / DVD Keys  
MPIP Key  
NEZ SURF Key (Back Program Information can be displayed.)  
No.52005  
7
AV-27F703  
AV-27F713  
AV-27F803  
SPECIFIC SERVICE INSTRUCTIONS  
DISASSEMBLY PROCEDURE  
REMOVING THE REAR COVER  
CHECKING THE CHASSIS  
1. Disc onnect the power plug from wall outlet.  
To check the PW Board from back side.  
1. Pull out the chassis (refer to REMOVING THE CHASSIS).  
2. Erect the chas sis vertically so that you c an easily check the back  
side of the PW Board.  
2. As s hown in the Fig.1, remove the 12 screws marked !.  
3. Withdraw the rear c over backward.  
REMOVING THE TERMINAL BOARD  
" After removing the rear cover.  
[CAUTION]  
"
"
"
When erecting the chassis, be careful so that there will be no  
contacting with other PW Board.  
1. As s hown in Fig.1, remove the screws marked ".  
2.Withdrawthe terminal board toward you.  
Before turning on power, make s ure that the wire connec tor is  
properly connec ted.  
When conducting a check with power supplied, be sure to  
confirm that the CRT EARTH WIRE (BRAIDED ASS’Y) is  
connected to the CRT SOCKET PW board.  
REMOVING THE CHASSIS  
" After removing the rear cover / terminal board.  
1. Slightly raise the both sides of chassis by hand and remove the  
claws under the both side of the chassis from the front cabinet.  
2
2. Withdraw the chass is backward.  
WIRE CLAMPING AND CABLE TYING  
1. Be sure to clamp the wire.  
(If necess ary, remove the wire clamp, c onnectors etc.)  
2. Never remove the cable tie used for tying the wires together.  
Should it be inadvertently removed, be sure to tie the wires with a  
new cable tie.  
REMOVING THE SPEAKER  
"After removing the rear cover.  
1. As shown in Fig. 1, removing the 4 screws marked #, then  
remove the speaker.  
2. Follow the s ame steps when removing the other hand speak er.  
NOTE : When removing the screws marked # of the speaker,  
4
remove the lower side screw first, and then remove the  
upper one.  
REMOVING THE LED & POWER SW PWB  
"
After removing the rear cover & terminal board.  
1. Remove the 2 screws marked $ as s hown in Fig. 1.  
2.Withdraw the LED & POWER SW PWB toward you.  
* If necessary, remove the wire clamp, connector etc.  
REMOVING THE FRONT CONTROL PWB  
" After removing the rear cover & terminal board.  
1. Remove the 2 screws marked % as s hown in Fig. 1.  
2.Withdrawthe FRONT CONTROL PWB toward you.  
* If necessary, remove the wire clamp, connector etc.  
8
No.52005  
AV-27F703  
AV-27F713  
AV-27F803  
/S  
This exploded view describes about the AV-27F803 .  
You c an use the exploded view for disassembling the  
/S  
/S  
AV-27F703 AV-27F713 in the s ame step as for  
this one.  
FRONT CABINET  
SPEAKER  
C
CRT SOCKET  
PWB  
(×4)  
FRONT CONTROL  
PWB  
PIP PWB  
AV-27F803/S  
CHASSIS  
MAIN PWB  
CLAW  
E
(×2)  
LED & POWER SW  
PWB  
D
(×2)  
POWER CORD  
3D Y/C SEP MODULE  
/S  
AV-27F803  
CLAW  
TERMINAL  
BOARD  
AV SELECTOR  
PWB  
REAR COVER  
B
AV-27F803/S  
(×6)  
(×4) AV-27F703/S  
/S  
AV-27F713  
A
(×12)  
Fig.1  
No.52005  
9
AV-27F703  
AV-27F713  
AV-27F803  
MEMORY IC REPLACEMENT  
1. Memory IC  
This TV uses memory IC.  
This memory IC stores data for proper operation of the video and deflection circuits.  
When replacing the memory IC, be sure to use an IC containing this (initial value) data.  
2. Memory IC replacement procedure  
(1) Power off  
Switch off the power and disc onnect the power cord from the wall  
outlet.  
SERVICE MENU  
SERVICE MENU  
AV-27F803/S  
(2) Replace the memory IC  
6.3D Y/C(DYC)  
1.V/C(S)  
3.SOUND(A)  
5.PIP(PIP)  
2.DEF(D)  
Be sure to use a memory IC written with the initial setting data.  
4.OTHERS(F)  
6.3L Y/C(LYC)  
8. HIGH LIGHT  
10.VCO  
7. LOW LI GHT  
9.RF AFC  
(3) Power on  
Connect the power cord to the wall outlet and switch on the power.  
2
V erified  
11.I C BUS  
12.SYSTEM(SYS)  
SELECT BY  
OPERATEBY  
(4) Confir m the system constant value  
EXITBY  
EXIT  
"
"
12.SYSTEM (SYS) do not adjust normally.  
Fig.1  
12.SYSTEM(SYS)  
The adjustment should not be done without signal.  
!
How to enter the SERVICE MENU.  
1) Press the SLEEP TIMER key and set SLEEP TIMER for 0 min.  
2) Before disappear the display of SLEEP TIMER settings,  
simultaneously press the DISPLAY key and VIDEO STATUS key of  
the remote controlunit.  
SET TING ITEM  
3) The SERVICE MENU screen will be displayed as shown Fig.1.  
!
How to enter the 12. SYSTEM(SYS).  
1) While the SERVICE MENU is displayed, select the  
▼ ▲  
SYS01 VIDEO IN  
***  
12.SYSTEM(SYS) item with FUNCTION (  
FUNCTION ( ) keys is pressed, the screen will be displayed as  
shown in Fig.2.  
/
) keys, and the  
/
SET TING No  
SET TING VALUE  
Fig.2  
5) Refer to the SYSTEM ( SYSTEM CONSTANT) TABLE 1 and check  
the setting items. If the value is different, select the setting item with  
the FUNCTION ( / ) keys and adjust the setting with the  
KEY ASSIGNMENT OF REMOTE CONTROL UNIT  
(RM-C325G)  
FUNCTION(  
/
) keys. (The letters of the s elected item are  
displayed in yellow.)  
6) When adjustment has completed, the values store into memory IC  
automatically  
POWER  
7) Press the EXIT key to return the SERVICE MENU screen.  
8) Then press the EXIT key again to return the normal screen.  
DISPLAY  
(5) Receive the channel setting  
SLEEP  
TIMER  
NUMBER  
Refer to the OPERATING INSTRUCTIONS (USER'S GUIDE) and  
set the receive channels (Channels Preset) as desc ribed.  
VIDEO  
STATUS  
(6) User settings  
MUTING  
MEMO RY  
Check the us er setting items acc ording to TABLE 2.  
Where thes e do not agree, refer to the OPERATING  
INSTRUCT IONS (USER'S GUIDE) and set the items as described.  
FUNCTION  
/▲  
FUNCTION  
/
EXIT  
PIP OFF  
(7) SERVICE MENU setting  
Verify what to set in the SERVICE MENU, and set whatever is  
necessary(Fig.1) .  
Refer to the SERVICE ADJUSTMENT for s etting.  
Although des ign is different, eac h remote c ontroller  
has the same control function.  
NOTE  
10  
No. 52005  
AV-27F703  
AV-27F713  
AV-27F803  
12.SYSTEM(SYS) System Constant setting】  
Initial setting value  
Initial setting value  
AV-27F703/S  
AV-27F703/S  
No.  
Setting item  
No.  
Setting item  
AV-27F803/S  
AV-27F803/S  
/S  
/S  
AV-27F713  
AV-27F713  
SYS01  
SYS02  
SYS03  
SYS04  
SYS05  
SYS06  
SYS07  
SYS08  
SYS09  
SYS10  
SYS11  
SYS12  
VIDEO IN  
PIP  
04  
01  
01  
01  
01  
00  
01  
01  
01  
01  
01  
01  
03  
00  
00  
01  
01  
00  
01  
00  
01  
01  
01  
01  
SYS13  
SYS14  
SYS15  
SYS16  
SYS17  
SYS18  
SYS19  
SYS20  
SYS21  
SYS22  
SYS23  
SYS24  
HYP SURR  
16:9 MD  
01  
01  
01  
01  
01  
01  
01  
01  
01  
01  
01  
00  
01  
01  
01  
00  
01  
01  
01  
01  
01  
01  
01  
00  
3D Y/C  
HYP SCAN  
EZ SURF  
ID DISP  
Y CV  
CCD PCHK  
PURITY  
VM  
COMPULINK  
CCD  
NOISE CR  
CLR TEMP  
THEATER  
THEATER PRO  
BBE  
VCHIP  
VCHIP CA  
JVC LOGO  
CMP IN  
CXA1875  
Table 1  
User setting  
Setting item  
Setting value  
Setting item  
Setting value  
Use remote controller keys  
OFF  
Cable-02  
10  
OFF  
POWER  
DISPLAY  
DYNAMIC  
OFF  
CHANNEL  
VOLUME  
TV/VIDEO  
VIDEO STATUS  
HYPE R S URROUND  
BBE  
TV  
ON  
(AV-27F803/S  
)
Cable-04  
PIP SOURCE  
Settings of MENU  
PICTURE MENU  
INITIAL SETUP MENU  
STANDARD  
TINT  
ENG  
LANGUAGE  
CENTER  
FRONT PANEL LOCK  
V2 COMPONENT-IN  
AUTO SHUT OFF  
OFF  
COLOR  
PICTURE  
BRIGHT  
DETAIL  
CENTER  
NO  
CENTER+14  
CENTER  
OFF  
CLOSED CAPTION  
OFF (CC1 / T1)  
+14 (AV-27F803/S  
+10 (AV-27F703/S / AV-27F713/S  
)
CENTER  
LOW  
AUTO TUNER SET UP Unnecessary to set  
)
Setting Channel  
Guard channel : All OFF  
COLORTEMPERATURE  
NOISE MUTING  
CHANNEL SUMMARY  
ON  
V-CHIP  
OFF  
SOUND ADJUST MENU  
CENTER  
SET LOCK CODE  
XDS ID  
(0000) Unneces sary to set  
ON  
BASS  
CENTER  
TREBLE  
BALANCE  
MTS  
CENTER  
STEREO  
CLOCK / TIMERS MENU  
MANUAL  
SET CLOCK  
TIME ZONE : PACIFIC  
D.S.T. : OFF  
OFF  
ON / OFF TIMER  
Table 2  
No. 52005  
11  
AV-27F703  
AV-27F713  
AV-27F803  
SERVICE ADJUSTMENTS  
ADJUSTMENT PREPARATION  
1. You can make the necessary adjustments for this unit with  
ADJUSTMENT EQUIPMENT  
either the Remote Control Unit or with the adjustment tools  
and parts as given below.  
1. DC voltmeter (or digital voltmeter)  
2. Oscilloscope  
2. Adjustment with the Remote Control Unit is made on the  
basis of the initial setting values, however, the new setting  
values which set the screen to its optimum condition may  
differ from the initial settings.  
3. Signal generator (Pattern generator) NTSC  
4. Remote control unit  
5. TV audio multiplex signal generator.  
6. Frequenc y counter  
3. Make sure that AC power is turned on c orrec tly.  
4. Turn on the power for s et and test equipment before use, and  
start the adjustment procedures after waiting at least 30 minutes.  
5. Unless otherwise s pec ified, prepare the most suitable reception  
or input signal for adjustment.  
KEY ASSIGNMENT OF REMOTE CONTROL UNIT  
(RM-C325G)  
6. Never touch any adjustment part which are not specified in the  
list for this adjustment - variable resistors, transformers, initial  
setting value, etc.  
POWER  
7. Pres etting before adjustment.  
DISPLAY  
Unless otherwise spec ified in the adjustment instructions, preset  
the following functions with the remote c ontrol unit:  
User menu preset value  
SLEEP  
TIMER  
NUMBER  
MENU ITEM  
VIDEO STATUS  
PRESET  
STANDARD  
CENTER  
OFF  
VIDEO  
STATUS  
MUTING  
MEMO RY  
BASS, TREBLE, BALANCE  
HYPERSURROUND  
FUNCTION  
/▲  
FUNCTION  
/
EXIT  
PIP OFF  
TINT, COLOR,  
PICTURE, BRIGHT, DETAIL  
CENTER  
STEREO  
MTS  
ADJUSTMENT ITEMS  
%
%
CHECK OF B1 POWER SUPPLY  
ADJUSTMENT OF VIDEO / CHROMA CIRCUIT  
WHITE BALANCE(High Light & Low Light) adjustment  
PIP WHITE BALANCE(High Light) adjustment  
SUB BRIGHT adjustment  
%ADJUSTMENT OF VCO  
MAIN VCO adjustment  
SUB VCO adjustment  
RF. AGC adjustment  
SUB CONTRASTadjustment  
%FOCUS adjustment  
%ADJUSTMENT DEF CIRCUIT  
SUB COLOR adjustment  
SUB TINT adjustment  
%
V. HEIGHT / V. CENTER(4:3) adjustment  
V. HEIGHT / L. LIN(16:9) adjustment  
ADJUSTMENT OF MTS CIRCUIT  
MTS INPUT LEVEL adjustment  
H. POSI, H. SIZE & SIDE PIN [ (4:3) &(16: 9) ] adjustment  
PIP DISPLAY POSI adjus tment  
MTS SEPARATION adjustment  
%HOW TO CHECK THE HIGH VOLTAGE HOLD DOWN CIRCUIT  
12  
No. 52005  
AV-27F703  
AV-27F713  
AV-27F803  
ADJUSTMENT LOCATIONS  
LED & PW SW PWB  
FRONT AV IN PWB  
FRONT  
POWER  
LED  
VOL  
CH  
MENU  
SENSOR  
IC7701  
J6403 J6402 J6401  
CN 6006  
B
B
CN 6007  
POWER  
SW  
D 7701  
S7701  
MAIN PWB  
SS  
CN 007  
IC911  
FRONT  
IC621  
DEG  
AV SELECTOR PWB  
AV-27F803 /S ONLY  
F901  
3D Y/C SEP  
MODULE  
PW  
IC702  
memory IC  
PIP PWB  
(AV-27F803 /S only)  
T411  
WHT  
BLK  
SUB VCO  
IC201  
TP-E  
(
)
HV  
B1  
(TP-91)  
3
1
PIP TUNER/IF  
B1  
TUNE R  
IC101  
IC421  
T111  
HVT  
CN 003  
MAIN VCO  
V CENTER SW  
S421  
CN 005  
E1  
C
S1  
UPPER : FOCUS  
LOWER : SCREEN  
CRT EARTH  
(BRAIDED ASS'Y)  
No. 52005  
13  
AV-27F703  
AV-27F713  
AV-27F803  
CRT SOCKET PWB  
TP-R  
TP-B  
TP-E1  
TOP  
TP-G  
V
TP-E2  
1
1
7
CN 30E2  
6
TP-E(  
)
CN 3004  
CN 3005  
CRT EARTH  
(BRAIDED ASS'Y)  
PIP PWB(AV-27F803/S)  
AV SELECTOR PWB  
TOP  
TOP  
PIP TUNER  
IC  
T4111  
SUB VCO  
AV-27F803 /SONLY  
J5501  
3D Y/C SEP  
MODULE  
J5502  
J5504  
(AV-27F803 /S  
)
J5503  
CN 4002  
CN 5001  
CN 5002  
(AV-27F803/S  
)
14  
No. 52005  
AV-27F703  
AV-27F713  
AV-27F803  
BASIC OPERATION OF SERVICE MENU  
1. TOOL OF SERVICE MENU OPERATION  
Operate the SERVICE MENU with the REMOTE CONTROL UNIT.  
2. In general, basic setting (adjustments) items or verifications are performed in the SERVICE MENU.  
(1) V/C (S) ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ This set the setting values (adjustment values) of the VIDEO/CHROMA circuits.  
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・  
(2) DEF (D)  
(3) SOUND (A) ・・・・・・・・・・・・・・・・・・・・・・・・・・・・ This set the setting values (adjustment values) of the AUDIO circuit.  
・・・・・・・・・・・・・・・・・・・・・・・・・・・  
This set the setting values (adjustment values) of the DEFLECTION circuit.  
(4) OTHERS (F)  
(5) PIP (PIP) ・・・・・・・・・・・・・・・・・・・・・・・・・・・This set the setting values(adjustment values) of the PICT URE-IN-PICTURE circuit.  
(PIP is means as Picture In Picture) [AV-27F803/S  
(6) 3LY/C(LYC) / 3DY/C(DYC) ・・・・・・・・・・・・・・・・・ This is us ed when the 3L(or 3D) Y/C MODE is verified. [Do not adjust]  
This is used when the OTHERS MODE is verified. [Do not adjust]  
]
[3L Y/C(LYC) =AV-27F703/S, AV-27F713/S / 3D Y/C( DYC )=AV-27F803/S  
]
(7) LOW LIGHT・・・・・・・・・・・・・・・・・・・・・・・・・・・・ This sets the s etting values (adjustment values ) of the W HITE BALANCE circuit.  
(8) HIGH LIGHT ・・・・・・・・・・・・・・・・・・・・・・・・・・・ This sets the s etting values (adjustment values ) of the WHITE BALANCE circuit  
(9) RF AFC・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ This is us ed when the RF AFC MODE is verified. [Do not adjust]  
(10)VCO ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ This is us ed when the IF VCO is adjus ted.  
(11)I2C BUS ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ This is us ed when ON/OFF of the I2C BUS CTRL is set. [Fixed ON]  
(12)SYSTEM (SYS) ・・・・・・・・・・・・・・・・・・・・・・・・・ This is us ed when the SYSTEM is verified. [Fixed value]  
3. Basic Op erations of the SERVICE MENU  
(1) How to enter the SERVICE MENU.  
SERVICE MENU  
Press the SLEEP TIMER key and s et the SLEEP TIMER for  
0 MIN.  
SERVICE MENU  
1.V/C(S)  
2.DEF(D)  
Then press the DISPLAY key and VI DE O S TATUS key of the  
remote control unit at the same time to enter the SERVICE  
MENU sc reen.(FiG .1)  
3.SOUND(A)  
5.PIP(PIP)  
7. LOW LI GHT  
9.RFAFC  
4.OTHERS(F)  
6.3L Y/C(LYC)  
8.HI GH LIGHT  
10.VCO  
AV-27F803  
6. 3D Y/C(DYC)  
2
11.1CBUS  
12.SYSTEM(SYS)  
(2) SERVICE MENU screen selection  
SELECT BY  
OPERATEBY  
In SERVICE MENU, press the FUNCTION (/) key to  
select any of the SUB MENU items.  
EXITBY EXIT  
(The letters of the s elected items are displayed in yellow. )  
Fig.1  
(3) Enter the any setting ( adjustment ) mode  
% 1. V/C(S), 2. DEF(D), 3. SOUND(A), 4. OTHERS(F),  
KEY ASSIGNMENT OF REMOTE CONTROL UNIT  
(RM-C325G)  
/ AV-27F713 /S  
]
5. PIP(PIP), 6. 3L Y/C(LYC) [AV-27F703/  
/
S
[AV-27F803 /S  
]
3DY/C(DYC)  
, 7. LOW LIGHT, 8. HIGH LIGHT,  
9. RF AFC, 10. VCO, 11. I2C BUS and 12. SYSTEM(SYS)  
POWER  
mode.  
DISPLAY  
1) If select any of 1. V/C(S ) / 2. DE F(D) / 3. SO UND(A)  
/ 4. OTHERS(F) / 5. PIP(PIP) / 6. 3L Y/C(LYC)  
[AV-27F703/S / AV-27F713/S  
]
[AV-27F803 /S  
]
SLEEP  
TIMER  
, 3D Y/C(DYC)  
7. LOW LIGHT / 8. HIGH LIGHT / 9. RF AF C /  
10. VCO / 11. I2C BUS / 12. SYSTEM(SYS) items, and  
the FUNCTION ( ) key is pressed from SERVICE  
/
NUMBER  
VIDEO  
/
STATUS  
MUTING  
MENU (MAIN MENU), the each screens will be  
displayed as shown in figure page later.  
MEMO RY  
FUNCTION  
▼ ▲  
/
FUNCTION  
/
2) Then the settings or verifications can be performed  
EXIT  
PIP OFF  
Although des ign is different, eac h remote c ontroller  
has the same control function.  
NOTE  
No. 52005  
15  
AV-27F703  
AV-27F713  
AV-27F803  
1.V/C(S)  
SERVICE MENU (MAIN MENU)  
7.LO W L IGHT  
R F  
4
:
3
S TD LO W  
SE RV ICE ME NU  
1 .V/ C( S)  
2 .DE F(D )  
3 .SO U ND( A )  
5 .PI P(P IP)  
7 .LO W LIG HT  
4 .O THE RS( F)  
6 .3 L Y/ C( LYC )  
8.H IG H LIG HT  
1 0. VCO  
9 .RF AFC  
2
1 1. 1  
C
BU S  
1 2. SYSTE M(S YS)  
SEL ECT BY  
O PER ATE BY  
B RI G HT  
***  
***  
***  
EX IT B Y EXI T  
S0 1  
BR IG H T  
***  
***  
2.DEF(D)  
8.HIGH L IGHT  
R F  
4
:
3
S TD LO W  
D 01  
V
FRE Q  
***  
***  
***  
Do n ot ad just  
3.SOUND( A)  
9.RF AFC  
TO O H IG H G O O D  
TU NE R  
A FG  
FIN E  
TO O LO W  
M A IN  
ON  
A 01  
IN LE VEL  
***  
***  
4.OTH ERS(F)  
10.VCO  
TU NE R  
M A IN  
H IG H LEV EL  
R EFER EN C E LE VE L  
LO W LEV EL  
SY NC  
***  
F0 1  
N O  
Do n ot ad just  
5.PIP( PI P)  
2
11.I C BUS  
PI P0 1 B RI GH T  
***  
I2 C  
BU S  
O N  
6.3L Y/C(L YC) / 6.3D Y/C(DYC)  
12.SYSTEM(SYS)  
***  
***  
LYC 0 1  
SY S0 1 VI DE O IN  
or DYC 01=AV-27F 803  
16  
No. 52005  
AV-27F703  
AV-27F713  
AV-27F803  
(4) Setting method  
1) FUNCTION (/) key.  
Select the SETTING ITEM.  
RF 4 : 3 STD LOW  
2) FUNCTION (  
/
) key  
Setting (adjust) the SETTING VALUE of the SETTING ITEM.  
SETTING ITEM  
When the key is released the SETTING VALUE will be stored (memorized).  
3) EXIT key  
S01 BRIGHT  
***  
Returns to the previous screen.  
SETTING No  
SETTING VALUE  
1.V/C (S)  
(5) Releasing SERVICE MENU  
1) After returning to the SERVICE MENU upon completion of the setting  
(adjus tment) work, press the EXIT key again.  
BRIGHT  
***  
***  
***  
***  
The settings for LOW LIGHT and HIGH LIGHT are des cribed in the  
WHITE BALANCE page of ADJUSTMENT.  
7.LOW LIGHT  
The setting for MAIN VCO are described in the VCO page of ADJ USTMENT .  
***  
***  
8.HIGH LIGHT  
TUNER  
MAIN  
HIGH LEVEL  
REFERENCE LEVEL  
LOW LEVEL  
SYNC  
NO  
10.VCO  
No. 52005  
17  
AV-27F703  
AV-27F713  
AV-27F803  
INITIAL SETTING VALUE OF SERVICE MENU  
1. Ad justment of the SERVICE MENU is made on the basis of the initial setting values ; however, the new setting values which  
set the screen in its optimum condition may differ from the initial setting.  
2. Do not change the initial setting values of the setting (adjustment) items not listed in “ADJUSTMENT”.  
--- can not be adjustment  
"
V / C MODE  
RF  
STANDARD(4:3)  
EXTERNAL  
(S,CV)  
/S  
/S  
S
AV-27F803  
AV-27F703 ,AV-27F713/  
COMPONENT  
No .  
Setting item  
THEATER  
(4:3)  
THEATER  
(4:3)  
AV-27F703  
AV-27F703/S  
AV-27F713/S  
/S  
STD(4:3)  
STD(16:9)  
STD(4:3)  
STD(16:9)  
AV-27F803  
AV-27F803  
/S  
/S  
AV-27F713  
/S  
S01  
S02  
S03  
S04  
S05  
S06  
S07  
S08  
S09  
S10  
BRIGHT  
PICTURE  
COLOR  
TINT  
64  
60  
50  
68  
38  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
64  
60  
50  
68  
33  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
46  
72  
45  
---  
---  
46  
72  
40  
---  
---  
---  
---  
---  
---  
---  
---  
---  
DETAIL  
---  
---  
40  
35  
±
±
±
±
00  
BRIGHT +-  
PICT+-  
00  
+01  
-10  
-03  
-03  
00  
+01  
-10  
-03  
-03  
-01  
±00  
-02  
+11  
---  
-02  
±00  
-02  
+05  
---  
00  
-08  
-08  
±00  
---  
±00  
---  
±
±
COLOR +-  
TINT+-  
00  
00  
±00  
±00  
---  
---  
±
±
00  
DETAIL+-  
---  
00  
---  
---  
---  
Initial setting value  
RF/EXT (S,CV)  
COMPONENT  
STANDARD  
No .  
Setting item  
STANDARD  
LOW HIGH  
THEATER  
THEATER  
LOW  
HIGH  
LOW  
HIGH  
LOW  
HIGH  
S11  
S12  
S13  
S14  
S15  
S16  
S17  
S18  
S19  
S20  
S21  
S22  
S23  
S24  
R CUT OFF  
G CUT OFF  
B CUT OFF  
R DRIVE  
B DRIVE  
30  
30  
30  
64  
64  
---  
---  
---  
---  
---  
03  
02  
01  
01  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
02  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
01  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
01  
---  
---  
---  
---  
---  
---  
±
±
±
R CUT +-  
00  
00  
00  
-10  
±00  
-10  
±00  
G CUT +-  
±00  
±00  
±00  
±
±
±
B CUT +-  
00  
00  
00  
R DRV+-  
+05  
+06  
03  
+13  
-25  
01  
+07  
-09  
01  
±
B DRV+-  
00  
NTSC MAT  
BLACK ST  
DCREST  
DCRSW  
02  
---  
02  
---  
---  
---  
---  
---  
01  
---  
---  
01  
---  
Initial setting value  
EXTERNAL  
No .  
Setting item  
RF  
COMPONENT  
S25  
S26  
S27  
S28  
ASY SHRP  
BPF FO  
04  
00  
00  
01  
04  
00  
00  
01  
04  
---  
---  
---  
KILR OFF  
KILR SEN  
18  
No. 52005  
AV-27F703  
AV-27F713  
AV-27F803  
No .  
Setting item  
Initial setting value  
No .  
Setting item  
Initial setting value  
S29  
S30  
S31  
S32  
S33  
S34  
S35  
S36  
S37  
S38  
RGB MUTE  
BLUE B  
00  
00  
03  
00  
00  
07  
05  
00  
03  
01  
S39  
S40  
S41  
S42  
S43  
S44  
S45  
S46  
S47  
Y MUTE  
SVM GAIN  
SVM PH  
WPL  
00  
03  
01  
00  
00  
04  
63  
+03  
01  
VIDEO SW  
CMP ABCL  
OSD ABCL  
OSD CONT  
SUB CONT  
ABL GAIN  
ABL PNT  
COL GMM  
V1 GAIN  
AGC ADJ  
VMOFF DE  
APC CLK  
Y GAMMA  
--- can not be adjustment  
"
DE F MODE  
Initial setting value  
Initial setting value  
/S  
/S  
/S  
/S  
AV-27F803 ,AV-27F703  
AV-27F803 ,AV-27F703  
/S  
/S  
No.  
Setting item  
AV-27F713  
No.  
Setting item  
AV-27F713  
RF  
(4:3)  
RF  
(16:9)  
EXT  
(4:3)  
RF  
(4:3)  
RF  
(16:9)  
EXT  
(4:3)  
D01  
D02  
D03  
D04  
D05  
D06  
D07  
D08  
D09  
D10  
D11  
D12  
D13  
D14  
D15  
D16  
D17  
V FREQ  
AFC GAIN  
H POSI  
00  
00  
00  
---  
00  
---  
00  
---  
-30  
---  
00  
---  
00  
---  
00  
---  
00  
01  
03  
D18  
D19  
D20  
D21  
D22  
D23  
D24  
D25  
D26  
D27  
D28  
D29  
D30  
D31  
D32  
D33  
WVMT BTM  
EWCR TOP  
EWCR T+-  
EWCR BTM  
EWCR B+-  
EW PARA  
EW PARA+-  
V EHT  
00  
01  
---  
00  
---  
00  
---  
-15  
---  
00  
---  
00  
---  
00  
00  
00  
00  
00  
12  
---  
14  
---  
36  
---  
00  
---  
00  
---  
31  
---  
00  
00  
00  
00  
20  
---  
00  
---  
75  
---  
32  
---  
09  
---  
10  
---  
33  
---  
00  
02  
20  
---  
00  
---  
75  
---  
32  
---  
09  
---  
10  
---  
33  
---  
00  
12  
---  
14  
---  
36  
---  
00  
---  
00  
---  
31  
---  
00  
00  
00  
H POSI+-  
V PHASE  
V PH+-  
V SIZE  
V SIZE+-  
V CENTER  
V CENT+-  
V S CORR  
V S CO+-  
V LIN  
V EHT+-  
H EHT  
H EHT+-  
TRAPEZ  
TRAPEZ+-  
V AGC  
V LIN+-  
H SIZE  
BLANK SW  
VRMP BI  
H SIZE+-  
WVMT TOP  
"
SOUND MODE  
No .  
Setting item  
Initial setting value  
A01  
A02  
A03  
A04  
A05  
A06  
IN LEVEL  
LOW SEP  
HI SEP  
10  
32  
32  
SAPC  
00  
BBE BASS  
BBE TRE  
±00  
-03  
No. 52005  
19  
AV-27F703  
AV-27F713  
AV-27F803  
Setting item do not display  
"
OTHERS MODE (Do not adjust)  
Initial setting value  
AV-27F703/S  
Initial setting value  
AV-27F703/S  
No.  
Setting item  
No.  
Setting item  
/S  
/S  
AV-27F803  
AV-27F803  
/S  
/S  
AV-27F713  
AV-27F713  
F01  
F02  
F03  
F04  
F05  
F06  
F07  
F08  
F09  
F10  
F11  
F12  
F13  
F14  
OSD POSI  
OSD PREQ  
CCD POSI  
CCD FREQ  
CCD CONT  
PURWBCK  
PUR CONT  
SN TYPE  
YCSN TM  
YCSN E  
37  
90  
39  
91  
04  
00  
02  
01  
05  
05  
16  
32  
03  
05  
37  
90  
39  
91  
04  
00  
02  
02  
05  
05  
16  
32  
03  
05  
F15  
F16  
F17  
F18  
F19  
F20  
F21  
F22  
F23  
F24  
F25  
F26  
F27  
F28  
VCSN 1  
00  
10  
00  
10  
VCSN 2  
VCSN 3  
20  
20  
VCSN STP  
VN DAT A  
VM DAT B  
VM DAT C  
VM DAT D  
VM DAT E  
VMOFF TY  
YC VMOFF  
EZSF T M  
XDSID TM  
FM TRAP  
02  
02  
+08  
-08  
-20  
-32  
01  
+08  
-08  
-20  
-32  
01  
02  
02  
YCSN F  
255  
40  
255  
40  
YCSN G  
VNR CHK  
VCSN TM  
15  
15  
01  
01  
"
3L Y / C MODE (Do not adjust)  
Initial setting value  
No.  
Setting item  
/S  
/S  
AV-27F703 ,AV-27F713  
LYC01  
LYC02  
LYC03  
LYC04  
LYC05  
LYC06  
LYC07  
LYC08  
LYC09  
LYC10  
LYC11  
LYC12  
MO DE  
VENH  
PDSOFF  
CB  
04  
01  
00  
00  
02  
00  
01  
00  
01  
00  
00  
00  
VNLR  
GSEL0  
GSEL1  
COR  
TRAP  
CHTRAP  
CBPF  
ENHOFF  
"
/S  
3DY / C MODE [AV-27F803 ]  
No.  
Setting item  
Initial setting value  
No .  
Setting item  
Initial setting value  
DYC01  
DYC02  
DYC03  
DYC04  
DYC05  
DYC06  
DYC07  
DYC08  
DYC09  
DYC10  
DYC11  
DYC12  
DYC13  
DYC14  
D7-0  
D7-4  
21  
00  
00  
193  
04  
02  
02  
42  
36  
34  
01  
22  
00  
15  
DYC15  
DYC16  
DYC17  
DYC18  
DYC19  
DYC20  
DYC21  
DYC22  
DYC23  
DYC24  
DYC25  
DYC26  
DYC27  
DYC28  
D7-0  
D7-0  
D7-0  
D7-0  
D7-0  
D7-0  
D7-0  
D7-0  
D7-0  
D7-0  
D7-0  
D7-0  
D7-0  
3DYC  
09  
241  
37  
D1-0  
D7-0  
08  
D7-3  
68  
RF CDL  
EXT CDL  
D7-0  
48  
08  
51  
D7-0  
200  
74  
D7-0  
D7-0  
236  
00  
D5-0  
D7-0  
00  
D7-0  
01  
20  
No. 52005  
AV-27F703  
AV-27F713  
AV-27F803  
/S  
"
PIP MODE (Do not adjust)[AV-27F803 ]  
No .  
Setting item  
Initial setting value  
No.  
Setting item  
Initial setting value  
PIP01  
PIP02  
PIP03  
PIP04  
PIP05  
PIP06  
PIP07  
PIP08  
PIP09  
PIP10  
PIP11  
PIP12  
PIP13  
PIP14  
PIP15  
PIP16  
PIP17  
PIP18  
PIP19  
PIP20  
PIP21  
PIP22  
PIP23  
PIP24  
PIP25  
PIP26  
BRIGHT  
PICTURE  
TINTI  
00  
30  
42  
06  
00  
00  
00  
63  
65  
65  
22  
15  
12  
11  
01  
00  
01  
00  
07  
00  
00  
00  
01  
00  
01  
00  
PIP27  
PIP28  
PIP29  
PIP30  
PIP31  
PIP32  
PIP33  
PIP34  
PIP35  
PIP36  
PIP37  
PIP38  
PIP39  
PIP40  
PIP41  
PIP42  
PIP43  
PIP44  
PIP45  
PIP46  
PIP47  
PIP48  
PIP49  
PIP50  
PIP51  
PIP52  
PIP53  
UVPOLAR  
MAT  
00  
01  
01  
01  
01  
00  
00  
01  
00  
00  
00  
00  
04  
00  
00  
00  
00  
00  
00  
00  
00  
00  
40  
05  
00  
00  
00  
YCOR  
COLOR  
XFREQF  
WTCHDG  
COLON  
R CUTOFF  
G CUTOFF  
B CUTOFF  
R DRIVE  
G DRIVE  
B DRIVE  
L POSI  
ACQNEW  
DSTDET  
CRIBEOK  
FCBEOK  
NOCRID  
NONSED  
PIP ADJ  
R POSI  
UPR POSI  
LWR POSI  
PICT LCK  
SELDEL  
AGCFIX  
AGCADST  
AGC  
BRI EXT  
PCT EXT  
TNT EXT  
COR EXT  
R-D EXT  
G-D EXT  
B-D EXT  
BRT COMP  
PCT COMP  
TNT COMP  
COR COMP  
R-D COMP  
G-D COMP  
B-D COMP  
BLKINVB  
BLKINVR  
VSPDEL  
VSPISQ  
RGBIN  
FRSEL  
OUTFOR  
/S  
/S  
NOTE The AV-27F703 , AV-27F713 model do not have PIP function, But, if memory data is out of variable range, occas ionally s ome  
problems happen. Then we need to input thes e data  
.
No. 52005  
21  
AV-27F703  
AV-27F713  
AV-27F803  
ADJUSTMENTS  
B1 POWER SUPPLY  
Measuring  
instrument  
DC Voltmeter B1】  
Connector  
Item  
Test point  
Adjustment part  
Description  
Check of  
B1 POWER  
SUPPLY  
1. Receive the blac k-and-whitesignal. (color off)  
2. Connect the DC voltmeter toB1connector pin1(TP-91)  
and TP-E(#) (B1 connector pin3).  
(pin1 & pin3)  
TP-91(pin1)  
TP-E(#):(pin3)  
3. Confirm that the voltage is DC134.5V±2V.  
ADJUSTMENT OF VCO  
Measuring  
Item  
Test point  
Adjustment part  
10:VCO MAIN  
Description  
instrument  
"
MAIN VCO  
adjustment  
Signal  
generator  
It must not adjust without signal  
1. Receive color bar signal.  
CW TRANSF.(T111)  
[MAIN PWB]  
2. Enter the SERVICE MENU mode.  
3. Press the key, and select the 10:VCO mode from the  
SERVICE MENU.  
4. Push the FUNCTION  
/
key, and select MAIN.  
5. Confirm that the color change from HIGH LEVEL to LOW  
LEVEL by CW TRANSF T111 at MAIN PWB, and check the  
SYNC : YES.  
TUNER  
HIGH LEVEL  
REFERENCE LEVEL  
LOW LEVEL  
MAIN  
6. Adjust until REFERENCE LEVEL mark turns green.  
And then confirm that the SYNC : YES again.  
7. Press the EXIT key to get out SERVICE MENU.  
GREEN  
SYNC:  
YES  
SUB VCO  
Signal  
10:VCO  
"
It must not adjust without signal  
adjustment  
generator  
1. Receive color bar signal.  
(AV-27F803 ONLY)  
2. Enter the SERVICE MENU mode.  
1. Press the FUNCTION () key, and s elect the 10:VCO mode  
from the SERVICE MENU.  
4. Push the left / right (  
/
) key, and select SUB.  
5. Confirm that the change from HIGH LEVEL to LOW LEVEL by  
CW transformer T4111 at PIP PWB, and c heck the SYNC :  
YES.  
TUNER  
HIGH LEVEL  
REFERENCE LEVEL  
LOW LEVEL  
SUB  
YES  
6. Adjust until REFERENCE LEVEL mark turns green.  
And then confirm that the SYNC : YES again.  
7. Press the EXIT key to get out SERVICE MENU screen.  
GREEN  
SYNC:  
22  
No. 52005  
AV-27F703  
AV-27F713  
AV-27F803  
ADJUSTMENT OF RF AGC  
Measuring  
Item  
Test point  
Adjustment part  
S45:AGC ADJ  
Description  
instrument  
RF. AGC  
adjustment  
1. Receive a black and white signal (color off).  
2. Select S45:AGC ADJ of the V/C MODE.  
3. Press the MUTING key and turn off c olor.  
4. With the FUNCTION  
key to get the noise in the screen  
picture (zero s ide of s etting value).  
Variable  
range  
Initial setting  
value  
5. Press the FUNCTION  
key several times and step when  
No.  
S45  
Setting item  
AGC ADJ  
nois e dis appears from the screen ( at that time, not to increas e  
the value too much).  
0127  
63  
6. Change to other c hannels and mak e sure that there is no  
irregularity.  
7. Press the MUTING key and get color out.  
ADJUSTMENT OF FOCUS  
Measuring  
Item  
Test point  
Adjustment part  
Description  
instrument  
FOCUS  
adjustment  
Signal  
generator  
FOCUS VR  
[In HVT]  
1. Receive the cross-hatch signal.  
2. While looking at the screen, adjust the FOCUS VR to the  
vertical and horizontal lines will be thinnest and sharpest  
center horizontal line.  
3. Make sure that the picture is in focus even when the screen  
gets darkened.  
ADJUSTMENT OF DEFLECTION CIRCUIT  
Measuring  
Item  
Test point  
Adjustment part  
Description  
instrument  
V. HEIGHT  
V. CENTER  
adjustment  
(4:3)  
Signal  
generator  
D05:V PHASE  
D07:V SIZE  
1. Receive the cross -hatch signal.  
2. Enter the SERVICE MENU.  
3. Select the D05:V PHASE of the 2.DEF (D) item, and it c hecks  
that the value of D05:V PHASE is 0.  
V. CENTER SW  
(S1421)  
[MAIN PWB]  
4. Adjust the vertical screen size of the visible screen top to  
90.0% with the D07:V S IZE and V CENTER SW S1421.  
Bottom is to be located with 85% 95% range.  
It adjust it by DEF SERVICE D13: V LIN. And D11: VS CORR.  
when vertical linearity is not even.  
Screen size  
Pict ure  
size  
(100%)  
Variable  
range  
Initial setting  
value  
Screen  
size  
(90. 0%)  
No.  
Setting item  
D05  
D07  
V PHASE  
V SIZE  
0
7
00  
75  
0127  
Picturesize (100%)  
No. 52005  
23  
AV-27F703  
AV-27F713  
AV-27F803  
Measuring  
instrument  
Signal  
Item  
Test point  
Adjustment part  
Description  
V. HEIGHT  
D18:V. SIZE+-  
D14:V. LINE+-  
Regular (4:3) size V. HEIGHT / V. CENTER adjustment should  
V. LINEARITY generator  
adjustment  
be fi nished.  
1. Receive a blac k -and- white signal (color off).  
2. Select 16:9 as pect mode with remote c ontr ol unit.  
3. Confirm that the width of V. BLANKING is equal to adjus tment  
val ue (B).  
(16:9)  
B
4. If the adjustment is not correct, enter the SERVIC E MENU.  
5. Then adj ust the D 08:V. SIZE+- and D 14:V. LIN+- to be same  
to adjustment value (B).  
[B=B]  
B
6. Press the EXIT key to twice to return the nor mal screen.  
(NOTE)  
When you c hange the VERTICAL adj ustment value of the  
regular mode (4:3), Revi ew the adjustment of 16:9 mode  
again.  
Adj .  
point  
Item  
No.  
Setting  
item  
Variable  
range  
Setting value  
(mm)  
D08  
D14  
V. SIZE+-  
V. LIN+-  
-128127  
50mm  
B
-128127  
H. POSITION  
H. SIZE &  
SIDE PIN  
adjustment  
(4:3)  
Signal  
generator  
D03:H.POSI.  
D15:H. SIZE  
D23:EW PARA  
D19:EW CR TOP  
D21:EW CR BMT  
V. HEIGHT / V. POSITION adjustment should be fi nished.  
1. Receive a cross-hatch signal.  
2. Enter the SERVICE MENU.  
3. Select the D03: H. POSI from 2.DEF (D) item.  
4. Adjust byH. POSIT ION to be same size at both side.  
5. Then adj ust the horizontal size of the visible scr een at both  
size to 90% with the D 15:H.SIZE.  
Screen size(90.0%)  
6. And adj ust the vertical line at both si de to become linear line by  
D23:EW PARA.  
7. Confirm the linearity of vertical line and horizontal size/  
8. If it is necessary, readjust 1.7.  
Pict ure  
size  
(100%)  
Screen  
size  
(90.0%)  
9. Press the EXIT key twice to return the nor mal screen.  
(NOTE)  
If it is not str aight the vertic al upper and bottom corner line  
adjustment the upper and bottom corner pin by D19:EW CR  
TOP and D21:EW CR BTM.  
Picturesize (100%)  
Variable  
range  
Initial setting  
value  
No.  
Setting item  
D03  
D15  
D23  
D19  
D21  
H. POSI  
H. SIZE  
031  
20  
33  
36  
12  
14  
063  
063  
031  
031  
EW PARA  
EW CR TOP  
EW CR BMT  
24  
No. 52005  
AV-27F703  
AV-27F713  
AV-27F803  
Measuring  
instrument  
Item  
Test point  
Adjustment part  
Description  
H. POSITION  
H. SIZE &  
SIDE PIN  
adjustment  
(16:9)  
Signal  
generator  
D04:H.POSI+-  
D16:H. SIZE+-  
D20:EW CR T+-  
D22:EW CR B+-  
D24:EW PARA+-  
V. HEIGHT / V. POSITION adjustment should be fi nished.  
H. SIZE, H. POSI and SIDE PIN adjustment should be  
finished. (Regular size(4:3)).  
1. Receive the cr oss-hatc h signal.  
2. Select 16:9 as pect mode with remote c ontr ol unit.  
3. Enter the SERVICE MENU.  
(H)  
Screen size90.0%  
4. Confirm both sides of cross-hatch to be the adjustment value  
90% .  
5. If it not c orrect, adjust to be value 90% at the D16:H. SIZE +-  
and D04:H.POSI+-.  
6. Confirm the vertical 2nd line from lift and right to be straight.  
7. If it is not str aight, adjust to be straight at D24:EW PARA+-,  
D20:EW CR T+- and D22:EW CR B+-.  
(V)  
Screen  
size  
90.0%  
Pict ure  
size  
100%  
(NOTE)  
Review the adjustment of 16:9 mode again when you c hange  
the SIDE PIN adjustment value of r egular (4:3) mode.  
Pict ure size 100%  
Variable  
range  
Setting  
value  
No.  
Setting item  
D04  
D16  
D20  
D22  
D24  
H. POSI+-  
H. SIZE+-  
-128+127  
00  
00  
00  
00  
00  
-128+127  
-128+127  
-128+127  
-128+127  
EW CR T+-  
EW CR B+-  
EW PARA+-  
PIP DISPLAY  
POSITION  
adjustment  
Signal  
generator  
PIP11:L POSI.  
Main pictur e’s V. HEIGHT, V. POSI, H. SIZE, H. POSI. Shoul d  
PIP12:R POSI.  
be fi nished.  
PIP13:UPR POSI.  
PIP14:LW R POSI.  
Set the VIDEO STATUS to STANDARD.  
(AV-27F 803/S)  
1. Receive a blac k -and- white signal (color off)  
2. Enter the SERVICE MENU.  
3. Select the 5:PIP(PIP) fr om SERVIC E MENU.  
4. Set the initial setting value of the PIP13:UPR POSI. with the  
(
/
) key of the remote control unit.  
5. Adjust the PIP13:UPR POSI. so that he position of the PIP  
screen edge of upper will be at X1 as sho wn.  
PIP screen  
6. Adjust the corresponding modes of PIP14, PIP11, PIP12 wit h  
the s ame steps as 35 above.  
X1  
(UPPER POSI.)  
Setting position  
Item  
No.  
Setting  
item  
Variable  
range  
setting  
value  
POSI.  
X1  
(%)  
80  
80  
80  
80  
PIP13 UPR POSI  
PIP14 LW R POSI  
0127  
0127  
0255  
0255  
12  
11  
22  
15  
X2  
(LOWER POSI. )  
X2  
Y1  
(LEFT POSI.)  
Y2  
(RIGHT POSI.)  
PIP11  
PIP12  
L. POSI  
R. POSI  
Y1  
Y2  
No. 52005  
25  
AV-27F703  
AV-27F713  
AV-27F803  
ADJUSTMENT OF VIDEO / CHROMA CIRCUIT  
Measuring  
Item  
Test point  
Adjustment part  
Description  
instrument  
WHITE  
Signal  
generator  
S01:BRIGHT  
1. Receive the blac k and white signal ( color off ).  
2. Select the LOW LIGHT mode from the SERVICE MENU.  
3. Confirm the initial setting value of R CUTOFF, G CUTOFF,  
B CUTOFFand BRI GHT.  
BALANCE  
(Low Light)  
adjustment  
S11:R CUTOFF  
S12:G CUTOFF  
S13:B CUTOFF  
0. Display a single horizontal line by pressing the key of the  
SCREEN VR  
[ in HVT]  
remote control unit.  
5. Turn the screen VR all the way to the left.  
6. Turn the screen VR gradually to the right from the left until  
either one of the red, blue or green colors appears faintly.  
7. Adjust the two colors which did not appear until the single  
horizontal line that is displayed bec omes white using the ④  
[LOW LIGHT]  
to  
keys of the remote c ontrol unit.  
8. Turn the screen VR until the single horizontal line is displayed  
faintly.  
9. Press the  
key to cancel the single horizontal line mode.  
10. Adjust the BRIGHT lev el to become the blac k c omponent  
shines white slightly.  
BRIGHT  
***  
***  
***  
***  
11. Confirm that whether the color ingredient of R, G, or B is visible  
to the black component, which shines white slightly  
12. When the color ingredient can be s een, two colors other than a  
visible color are adjusted, and it is made to look white.  
13. Return the value of BRIGHT to initial setting value.  
The  
EXIT key is the cancel key for the WHITE BALANCE.  
[H.LINE SCREEN ]  
REMOTE CONT ROL UNIT  
Variable  
range  
Initial setting  
value  
No.  
Setting item  
H.LINE ON  
H.LINE OFF  
EXIT  
0255  
0255  
0255  
S11  
S12  
S13  
S01  
R CUT OFF  
G CUT OFF  
B CUT OFF  
BRIGHT  
30  
30  
30  
64  
1
2
3
R CUTOFF  
G CUTOFF  
B CUTOFF  
4
5
6
R CUTOFF  
G CUTOFF  
B CUTOFF  
0
127  
7
8
9
26  
No.52005  
AV-27F703  
AV-27F713  
AV-27F803  
Measuring  
instrument  
Item  
WHITE  
BALANCE  
(High Light)  
adjustment  
Test point  
Adjustment part  
Description  
Signal  
generator  
S14:R DRIVE  
S15:B DRIVE  
1. Receive the blac k-and-white signal ( color off ).  
2. Select the HIGH LIGHT mode in the SERVICE MENU.  
3. Set the initial setting value of R DRIV E and B DRIVE with the  
, , and keys of the remote c ontrol unit.  
4. Adjust the screen until it becomes white using the , , ⑦  
and keys of the remote c ontrol unit.  
The EXIT key is the cancel key for the WHITE BALANCE.  
Variable  
range  
Initial setting  
value  
No.  
Setting item  
***  
***  
S14  
S15  
R DRIVE  
B DRIVE  
0127  
64  
64  
[WHITE SCREEN]  
0127  
REMOTE CONT ROL UNIT  
H.LINE ON  
H.LINE OFF  
EXIT  
1
2
3
R DRIVE  
B DRIVE  
4
5
8
6
R DRIVE  
B DRIVE  
7
9
PIP WHITE  
BALANCE  
(High Light)  
Signal  
generator  
PIP08:R DRIVE  
PIP10:B DRIVE  
1. Receive the blac k-and-white signal ( color off ).  
2. Select the PIP08:R DRIVE, PIP10:B DRIVE, of the 5.PIP(PIP)  
SERVICE MENU.  
adjustment  
(AV-27F803 ONLY)  
3. Set the corresponding initial setting values with the  
FUNCTION (  
/
) key of the remote control unit.  
4. Adjust the PIP08:R DRIVE, PIP10:B DRIVE until the s creen  
becomes white.  
Variable  
range  
Initial setting  
value  
No.  
Setting item  
PIP08  
PIP10  
R DRIVE  
B DRIVE  
0255  
63  
65  
0255  
No.52005  
27  
AV-27F703  
AV-27F713  
AV-27F803  
Measuring  
instrument  
Item  
Test point  
Adjustment part  
S01:BRIGHT  
Description  
SUB BRIGHT  
adjustment  
1. Receive the broadcast and set the STANDARD mode.  
2. Enter the SERVICE MENU.  
3. Select S01:BRIGHT of the V/C(S) mode.  
4. Set the initial setting value of the S01. BRIGHT with the  
Variable  
range  
Initial setting  
value  
FUNCTION  
/
key.  
No.  
S01  
Setting item  
BRIGHT  
5. If the brightness is not the best with the initial setting value,  
make fine adjustment of the S01. BRIGHT until you get the  
optimum brightness .  
0127  
64  
SUB  
CONTRAST  
adjustment  
S02:PICTURE  
1. Receive the broadcast and set the STANDARD mode.  
2. Enter the SERVICE MENU.  
3. Select S02:PICTURE of the V/C(S) mode.  
4. Set the initial setting value of the S02:PICTURE with the  
FUNCTION  
/
key.  
Variable  
range  
Initial setting  
value  
No.  
S02  
Setting item  
PICTURE  
5. If the contrast is not the best with the initial setting value, make  
fine adjustment of the S02:PICTURE until you get the optimum  
contrast.  
0
127  
60  
S03:COLOR  
[ Method of adjustment without measuring instrument ]  
SUB COLOR  
adjustment  
Signal  
generator  
1. Receive the broadcast.  
2. Enter the SERVICE MENU.  
Remote  
control unit  
3. Select S03:COLOR of the V/C(S) mode.  
4. Set the initial s etting value of the S03:COLOR with the  
FUNCTION  
/
key.  
5. If the c olor is not the best with the Initial s etting value, make  
fine adjus tment of the S03:COLOR until you get the optimum  
color.  
No.  
S03  
Setting item  
COLOR  
Variable  
range  
Initial setting  
value  
0127  
50  
Signal  
TP-B  
S03:COLOR  
[ Method of adjustment using measuring instrument ]  
generator  
TP-E(#)  
[CRT  
1. Input the full field c olor bar signal (75% white).  
2. Enter the SERVICE MENU.  
Oscilloscope  
SOCKET  
PWB]  
3. Set the RFAFC to OFF.  
4. Select S03:COLOR of the V/C(S) mode.  
5. Set the initial setting value of the S03:COLOR with the  
Remote  
control unit  
FUNCTION  
/
key.  
6. Connect the osc illosc ope between TP-Band TP-E.  
7. Adjust COLOR and bring the value of (A) in the illustration to  
the voltage shown in the table bellow.  
8. Reset the RFAFC setting pos ition from OFF to ON.  
Y
G
R
W-B  
[A]Voltage  
Models  
(A)  
Cy  
( )  
AV-27F703/S  
0V  
/S  
AV-27F713  
+13V  
Mg  
(
)  
/S  
W
AV-27F803  
B
28  
No.52005  
AV-27F703  
AV-27F713  
AV-27F803  
Measuring  
instrument  
Item  
Test point  
Adjustment part  
S04:TINT  
Description  
SUB TINT  
Signal  
[ Method of adjustment without measuring instrument ]  
adjustment  
generator  
1. Receive the broadcast.  
2. Enter the SERVICE MENU.  
Remote  
control unit  
3. Select S04:TINT of the V/C(S) mode.  
4. Set the initial setting value of the S04:TINT with the  
FUNCTION  
/
key.  
5. If the tint is not the bes t with the initial setting value, make fine  
adjustment of the S04:TINT until you get the optimum tint.  
Variable  
range  
Initial setting  
value  
No.  
S04  
Setting item  
TINT  
68  
0127  
Signal  
TP-B  
S04:TINT  
[ Method of adjustment using measuring instrument ]  
generator  
TP-E(#)  
1. Input the full field c olor bar signal (75% white).  
2. Enter the SERVICE MENU.  
[CRT  
Oscilloscope SOCKET  
PWB]  
3. Set the RFAFC to OFF.  
4. Select S04:TINT of the V/C(S) mode.  
5. Set the initial setting value of the S04:TINT with the  
Remote  
control unit  
FUNCTION  
/
key.  
6. Connect the osc illosc ope between TP-Band TP-E.  
7. Adjust TINT and bring the value of (B) in the illustration to the  
voltage shown in the table bellow.  
8. Reset the RFAFC setting pos ition from OFF to ON.  
Y
W-Mg  
[B]Voltage  
+26V  
G
R
Models  
AV-27F703/S  
AV-27F713/S  
/S  
AV-27F803  
(B)  
Cy  
()  
B
0V  
( )  
W
Mg  
No.52005  
29  
AV-27F703  
AV-27F713  
AV-27F803  
ADJUSTMENT OF MTS CIRCUIT  
Measuring  
Item  
Test point  
Adjustment part  
A01:IN LEVEL  
Description  
instrument  
MTS INPUT  
LEVEL  
Ad justment  
Sophometer AUDIO  
1. Receive the cross-hatch signal (c ros s-hatch / 400Hz)  
2. Enter the SERVICE MENU.  
OUT R pin  
3. Select the A01:IN LEVEL of the 3:SOUND(A) MODE.  
4. Verify that the A01:IN LEVEL is set at its initial setting value.  
5. Connect the sophometer to AUDIO OUT R pin.  
6. Adjust the MTS input level to 500mV(rms) by A01:IN LEVEL  
with remote control unit.  
7. Press the EXIT key to return to the SERVICE MENU screen.  
Variable  
range  
Initial setting  
value  
No.  
A01  
Setting item  
IN LEVEL  
015  
010  
MTS  
TV audio  
R OUT  
A02:LOW SEP.  
A03:HI SEP.  
1. Input the stereo L signal (300Hz) from the TV audio multiplex  
signal generator to the antenna terminal.  
SEPARATION multiplex  
adjustment  
L OUT  
signal  
generator  
[AUDIO OUT]  
2. Connect an oscilloscope to R OUT pin of the AUDIO OUT, and  
display one c ycle portion of the 300Hz signal.  
3. Enter the SERVICE MENU.  
Oscilloscope  
4. Select the A02:LOW SEP. of the 3:SOUND(A) mode.  
5. Set the initial s etting value of the A02:LOW SEP. with the  
FUNCTION (  
/
) key.  
6. Adjust the A02:LOW SEP. so that the stroke element of the  
300Hz signal will become minimum.  
7. Change the connection of the oscilloscope to L OUT pin of the  
AUDIO OUT , and enlarge the voltage axis.  
8. Change the signal to 3kHz, and similarly adjust the  
A03:HI SEP.  
9. Press the EXIT key to return to the SERVICE MENU screen.  
Variable  
range  
Initial setting  
value  
Setting item  
No .  
L-Channel  
signal waveform  
R-Channel  
crosstalk portion  
063  
A02  
A03  
LOW SEP.  
HI SEP.  
032  
032  
Minimum  
063  
1 c ycle  
30  
No.52005  
AV-27F703  
AV-27F713  
AV-27F803  
HOW TO CHECK THE HIGH VOLTAGE HOLD DOWN CIRCUIT  
1. HIGH VOLTAGE HOLD DOWN CIRCUIT  
After repairing the high voltage hold down circuit shown in Fig. 1.  
This circuit shall be checked to operate correctly.  
2. CHECKING OF THE HIGHVOLTAGE HOLD DOWN CIRCUIT  
(1) Turn the power switch to on.  
(2) As shown in Fig. 1, set the resistor between S1 c onnector  
2
and  
3
.
(3) Make sure that the screen pic ture disappears.  
(4) Temporarily unplug the power plug.  
(5) Remove the resistor replaced S1 connec tor  
2
and  
3
.
(6) Again plug the power plug, make sure that the normal picture is displayed on the screen.  
RESISTOR  
2
2
.
0 k  
Ω±  
Ω
1
1
0  
Q951  
R950  
HEATER  
S1 CONNECTOR  
5
4
3
2
1
PO WER  
ON OFF  
Q532  
T5
0
2  
HVT  
Q531  
D534  
D535  
4
R
5
3
7  
FR
5
2
9 D525  
D
5
3
1  
R935  
R
5
3
5  
C
5
2
5  
C
5
3
3  
Fig. 1  
No.52005  
31  
AV-27F703  
AV-27F713  
AV-27F803  
REPLACEMENT OF CHIP COMPONENT  
!
CAUTIONS  
1. Avoid heating for more than 3 seconds.  
2. Do not rub the electrodes and the resist parts of the pattern.  
3. When removing a c hip part, melt the s older adequately.  
4. Do not reuse a chip part after removing it.  
! SOLDERING IRON  
1. Use a high ins ulation s oldering iron with a thin pointed end of it.  
2. A 30w s oldering iron is rec ommended for easily removing parts.  
! REPLACEMENT STEPS  
2. How to install Chip parts  
1. How to remove Chip parts  
#
# Resistors, capacitors, etc  
Resistors, capacitors, etc  
(1) Apply solder to the pattern as indicated in the figure.  
(1) As shown in the figure, push the part with tweezers and  
alternately melt the solder at each end.  
(2) Grasp the chip part with tweezers and plac e it on the s older.  
Then heat and melt the solder at both ends of the chip part.  
(2) Shift with tweezers and remove the chip part.  
# Transistors, diodes, variable r esistor s, etc  
# Transistors, diodes, variable r esistor s, etc  
(1) Apply solder to the pattern as indicated in the figure.  
(2) Grasp the chip part with tweezers and place it on the solder.  
(1) Apply extra solder to each lead.  
A
(3) First solder lead as indicated in the figure.  
SOLDER  
SOLDER  
A
(2) As shown in the figure, push the part with tweezers and  
alternately melt the solder at each lead. Shift and remove the  
chip part.  
B
C
(4) Then solder leads B and C.  
A
B
C
Note : After removing the part, remove remaining solder from the  
pattern.  
32  
No.52005  

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