Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV27XRTU | No sync | No vid I/p to sync sep pin 5 IC501. SAA5230 chip on txt pcb no o/p pin 1 & overheating - Q002 12v reg s/c & SAA5230 faulty | ||
| Sony | KV27XRTU | Convergence errors | Q1504 HAMP driver tr leaky | ||
| Sony | KV2766UB | Remote Control int | C655 220µ causing 6v supply to be low at 3.8v | ||
| Sony | KV2766 | No I/p from scart until warm | C655 220µ 25v in psu - 6v smoother | ||
| Sony | KV2764 | Vertical IC TDA3652 defective. -No longer available- Foldover at the bottom , reduced width. | Fit a TDA3654 and change R518 to1,5K | ||
| Sony | KV2762 | Field reduction & non lin | TDA3652 field o/p chip | ||
| Sony | KV2756 | Field Collapse | R808 o/c off pin 12 of LOPTx (no 28v supply) | ||
| Sony | KV2730EC | Pic very slow to appear - sound ok | Possible CRT low emission | ||
| Sony | KV2720 | Chopper transistor Sced after running for 10-15 mins. | Replace all electrolytics around uPC1394 | ||
| Sony | KV2712 | SCREEN ONE HALF GREEN | IC 302 TDA4661 | ||
| Sony | KV2704UB | POOR STARTING | R605 R606 OR C623 33uF 250v | ||
| Sony | KV2704 | Sometimes it won't start. | Check / replace R606 470 kOhms resistor. | ||
| Sony | KV2704 | Intermittent startup. | Check R605/606 , if HT down to around 80V check C623 ( 33uf , 250v ) | ||
| Sony | KV25X5U | Low width, poor e/w correction, high contrast picture going blue after a while. | IC606 9v regulator 7809 s/c. | ||
| Sony | KV25X5U | Dead - blows LOPTr aft few mins & low width rh side | LOPTx |