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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: 7
Toshiba
2557DB 2857DB 2577DB
2877DB
3357DB 3377DB
Dead - green led flashes every 3 secs - no line drive
Check D431 1N4148 o/c removing supply to pin 22 TA1222AN IC501
14-09-04
Toshiba
2877DB
blank picture, no OSD or TEXT, sound Ok
no sandcastle pulse on pin1 IC501TB1230N, no frame blanking. Replace Q301 TA8427K (B0378560)
14-09-04
Toshiba
2877DB
blank raster, no OSD or text
clock/data lines pulled down by faulty tuner (2332196)
14-09-04
Toshiba
2877DB
no sound off air, ok via SCART
micro not receiving sync from AV switching IC and muting audio from IF module. Replace QV01 TA1218N on rear AV PCB
14-09-04
Toshiba
2877DB
slight frame bounce, more noticeable on text
C320 100uF 35V
14-09-04
Toshiba
2877DB
striations on LHS
R441 1k 1W o/c
14-09-04
Toshiba
2877DB
C7SS
Reverts to st/by aft init EHT with G LED flashing
Frame IC Q301 TA8427K s/c on pin 2 (scan output).
14-09-04
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