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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: 21
Goodmans
TVC146TWS Pan
TX14
GV1
Dead - relay slowly clicking
standby I.C. I807 a TOP210PFI and C840 47mfd
14-09-04
Panasonic
TX14
3T Z375 Chassis
Tripping - st/by led flashing
LOPTx
14-09-04
Panasonic
TX14
B3T Z375 chassis
Field collapse noticed when A1s advanced
IC301 TDA8456 - also do following mod - change C309 to 22µ 100v, add 0µ01 across R310 & fit 2R2 1w in place of jumper R420
14-09-04
Panasonic
TX14
B4T
No signals found when tuning
Earom replacement IC702 24C14 & mod kit fitted
14-09-04
Panasonic
TX14
GV1
Dead with mains relay clicking continuously.
Replace 47uF 25V (C840) in standby supply circuit.
14-09-04
Panasonic
TX14
GV1
No pic - int comes on with bang - sound ok
Invisible crack in print at LOPTr coll
14-09-04
Panasonic
TX14
GV1
text lines on the top
EAROM IC703 FAULTY, PART NO. AT24C0810PC
14-09-04
Panasonic
TX14
GV1 Daewoo CP421
Relay clicking No sound or vision
Check C840 47mfd and I807 TOP210PFI
14-09-04
Panasonic
TX14
GV1 Z421V
Int reverts to st/by
Replace TOP210PFI standby control chip (I807) and I.R. Receiver module (IQ01
14-09-04
Panasonic
TX14
GV1L
Locking up
The official remedy for this fault from Panasonic is to replace both the main microprocessor (I701) and the EAROM (I703). The new part numbers for these are:- I701 MS5457CU1, I703 X24C-14GV1
14-09-04
Panasonic
TX14
JT1
BBC1 lost on chan 1 but would retain it on another chan
EEPROM IC1205 pt no X24S11-1MAZ
14-09-04
PANASONIC
TX14
S2T
LACK OF HEIGHT WITH FOLDOVER
REPLACE R521 8.2 OHM
14-09-04
Panasonic
TX14
S3T
Dead - if replacing STR chopper chip
Ensure replacement has "A" suffix
14-09-04
Panasonic
Z185
TX14
B4T Daewoo CP185
Blank raster - OSG OK
Replace EAROM IC702 & C832; C863 in power supply; kit TZS9EK021(3 pence from SEME!)
14-09-04
Panasonic
Z185
TX14
BT
Tuning absent
Replace eeprom 24C16 with new reprogrammed chip
14-09-04
Panasonic
Z5
TX14
S2T
lack of height with top foldover
R521 8.2R 2W GONE HIGH (LOPTX PIN 8) PART NO. ERQ2GJP8R2
14-09-04
Panasonic
Z5
TX14
S3T
Service mode access
select ch60 "AND set sharpness to minimum." Press off timer on remote as well as V down on TV. Use V up & down to step through functions. Press +/- to alter values. Press STORE button after each adjustment is made to exit press norm button.
14-09-04
Panasonic
Z7
TX14
S3
blank raster, sound OK
R560 300K O/C
14-09-04
Panasonic
Z7
TX14
S3
dead, stby LED is low
5V STBY RAIL ONLY 2V, D1202 O/C (1N4150T77)
14-09-04
Panasonic
Z7
TX14
S3
distorted pic and sound, appears to have no sync
EPROM IC1205 (XL24D02PAA1)
14-09-04
Panasonic
Z7
TX14
S3T
Wont find chans in chan search, those already tuned in are off tune & dist. Tall, flat & greyscale off in AV mode
eeprom Part number XL24CO20-AA cured the faults. Caused by dry joint on LOPTx earth tag corrupting EEPROM. Go into"self check" mode. Done by pressing Status button on the remote & V down on set. Shows OPT O2 on screen.Can't store PP until done
14-09-04
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