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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair
Make
Model
Problem
Solution
Date
Found: 18
JVC
AV25F1
Field collapse & no sound
Dry joints regs IC521 & 522
14-09-04
JVC
AV25F1
Int dead
Dry joint between lie dr base & video/chroma board
14-09-04
JVC
AV25F1
JX
Dead
Q001 SGSIF444 chopper tr s/c, IC001 TEA2261, CNX82A opto also replaced to prevent repeats
14-09-04
JVC
AV25F1
EK
Blank raster aft 45 mins
Field chip TDA3654 - s/castle pulse dist thus blanking pic with full invisible raster
14-09-04
JVC
AV25F1
EK
Dead - LED blinks on once at sw on
Loptx faulty
14-09-04
JVC
AV25F1
EK
Geometry of pic out
IC561 TDA8145
14-09-04
JVC
AV25F1
EK
Int shut down
Opto coupler CNX92A & 2SC1815
14-09-04
JVC
AV25F1
EK
Int sigs & other int functs
Dry joints IC522
14-09-04
JVC
AV25F1
EK
Lack of width with foldover
Check for dry joints in line stage
14-09-04
JVC
AV25F1
EK
No sound
CP591 15cp IC501 TDA3810 s/c On 'ASP' small sub panel LH Side .
14-09-04
JVC
AV25F1
EK
No sound or field
FR527 6R8 1w also TDA3654 causing top cramp
14-09-04
JVC
AV25F1
EK
No Txt - when selected goes blank & returns to pic
IC004 PCF84C81P/064 on Txt pcb
14-09-04
JVC
AV25F1
EK
Text faulty - keeps jumping to random pages
solder bridge across pins 1 & 2 of IC02 SAA5243 Txt proc chip
14-09-04
JVC
AV25F1
EK JX Chassis
Dead - LOPTr Q502 BU508AFI s/c
Caused by faulty LOPTx
14-09-04
JVC
AV25F1
EK JX
INT. RF , COULD BE MISTAKEN FOR TUNER Clue is No
IC522 DRY JOINTS
14-09-04
JVC
AV25F1
EK JX
PSU powers down aft a sec of sw on
HT was excessive - Q031 2SC1815YG o/c
14-09-04
JVC
AV25F1
EK JX
STARTS UP THEN SHUTS DOWN
Q031 OC
14-09-04
JVC
AV25F1
EKA
Int blows lop trs
Check for dry joints driver IC etc
14-09-04
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