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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
3
472
NTX
St/by light blinks only
LOPTr S2000A s/c & LOPTx insulation breakdown - CHS order code FBT40564
14-09-04
Bush
3
472
NTX 4400
No pic - blank raster
TP6 BD441 in +5v supply
14-09-04
Bush
3
472
NTX Pro 4400
No pic or OSD - only blank raster
Check TP6 BD441 in 5v supply & DC4 1N4148 in BCL cct leaky between LOPTx & Scart. Check volts pin 22 TDA8843, (no higher than +3V) - > +3.6V then IC would disable RGB o/p to prevent crt burn.
14-09-04
Grundig
Super color 8
472
/8672/8272/8872/9272
R621(6,2ohms) smokes immediately after switch-on.
Replace thyristor Ty503 type17127
14-09-04
Grundig
Super color 8
472
/8672/8272/8872/9272
R621(6,2ohms) smokes immediately after switch-on.
Replace thyristor Ty503 type17127
14-09-04
Grundig
Super color 8
472
/8672/8272/8872/9272
Won't search.
Pin 5 of syntheseizer module, should have 3,5 volts. If not, change R4111 (1,8 volts).
14-09-04
Loewe Opta
ARTS35 66
472
SOUND MOTORBOATS WHEN COLD
C671 1000uF 16v ALSO C675
14-09-04
Lowe
66
472
Sound - motorboating when sw on
C671 1000µ 16v & C675 in 7.5v supply
14-09-04
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