Dicas Reparação
Modelo - Chassis 11AK08
Pesquisa: 11AK08 Enviar Dica Resolvida
Resultados 39
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| NEI | 11AK08 | No video - OSD OK - stuck in AV mode | Q404 BC548B leaky & check for shorts pin 12 IC501 & chassis | ||
| NEI | 11AK08 | No colour - may be int | Check IC401 (low sat volts pin 26), X401 4.43Mhz Xtal, C420 18pF, R437 100k, C418 0µ1 & C419 4n7 | ||
| NEI | 11AK08 | Low gain, noisy pic | C428 1µ 50v o/c pin 48 IC401 | ||
| NEI | 11AK08 | Lines across pic | C704 0µ1 o/c | ||
| NEI | 11AK08 | Line pairing & top stretched | R709 470R high res or o/c | ||
| NEI | 11AK08 | HT low at 85v | R813 hi res | ||
| NEI | 11AK08 | Field jitter | R441 10M in ramp gen cct o/c or int | ||
| NEI | 11AK08 | Field cramped with bright line across centre | Scan coils - should read 13.5R | ||
| NEI | 11AK08 | Field collapse | Check for cracks around IC701 & chip itself, if 26v absent at pin 9 R711 4R7 fusible o/c; C701/2 4n7 leaky, R707 3k9, R702 10k, R706 1R8, C426 10nF, C453 33nF | ||
| NEI | 11AK08 | Field - top foldover | D701 or C703 470pF leaky, R717 1k or 560R o/c, C704 0µ1 leaky | ||
| NEI | 11AK08 | Field - top cramped | IC401 | ||
| NEI | 11AK08 | Field - bottom cramp | C701/2 4n7 leaky, C705 3µ3 50v o/c | ||
| NEI | 11AK08 | Dead - no o/p from psu | R809 o/c, TR 802 shorted windings, Q801 chopper tr s/c, replace D808 BYT52M, R805 o/c & check mains filter choke TR801 for damage, R802 o/c, IC801 s/c pin 6 or D806 s/c | ||
| NEI | 11AK08 | Brightness low or varies | C907 1nF or 10nF 1kv leaky in A1 supply or R925 470k o/c | ||
| NEI | 11AK08 | Black lines across pic | R461/463 560R connected to pins 42/43 IC401 - may measure ok |