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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: 8
Bush
2157NTX
Dead - f901 blown.
Q904 ( 2SD1431 ) s/c.
14-09-04
Bush
2157NTX
Dead - line transistor Q402 s/c - Ht high.
Replace ZD901/902 , Q901/2/3/7 , C909 , C910 , R918 , check pcb around Q907
14-09-04
Bush
2157NTX
Dead - no HT on line transistor Q402.
R918 o/c.
14-09-04
Bush
2157NTX
Dead - set emits faint whistle.
IC102 ( TDA8305A )
14-09-04
Bush
2157NTX
Frame collapse.
IC401.
14-09-04
Bush
2157NTX
Partial frame collapse may be Int.
R410
14-09-04
Bush
2157NTX
Set pulses at high brightness levels.
R918 high.
14-09-04
Bush
2157NTX
Onwa
Low HT
Check 0R68 res in series with HT rect also 100k in sw dr cct - 2SC2335 & 2SA1013 had overheated so also replaced
14-09-04
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