Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | AE1 | EW FAULT+RH SCREEN BLANK | DRY JOINTS ON AV BOARD! | ||
| Sony | AE1 | Dead with flash & fizzing noise | Spark from T601 power trnsfmr when powered with variac - dry joints on winding conns on trnsfmr pins 17 & 18 | ||
| Sony | AE1 | Dead - st/by light comes on briefly | Running on dummy load not recommended - LOPTx u/s | ||
| Sony | AE1 | Dead - PS601 2A cct prot o/c | No reason found for its demise but replace C615 1000µ 25v as a precaution | ||
| Sony | AE1 | Dead - mains fuse o/c, Q602 2SD1548LB chopper tr s/c | D608 RU-3AM s/c also check R614 220R 10w dry joints | ||
| Sony | AE1 | Dead - comes on in st/by if sw on from skt | Check for 0v at pins 2 & 3 of IC601; if pin 3 = +7v sus LOPTx. Earth pin 3 and check for smoke! | ||
| Sony | AE1 | Dead | R1603 2R7 7w o/c; Chopper tr 2SD1548 s/c; R614 220R stand up res dry joints | ||
| Sony | AE1 | Crackle on sound | D/J around earth points check mains bridge | ||
| Sony | AE1 | CHOPPER TRANSISTOR SC | R614 OC MAYBE IC601 ALSO TEA2164 | ||
| Sony | AE1 | Chans won't store - int | The -30v supply to IC003 M58655 Memory chip falls to -15v. L807 feed coil was int o/c | ||
| Sony | AE1 | CAN'T STORE STATIONS PIN 2 ICOO3 NOT -33v | L807 OC PtNo 140750400 also check R008 C017 | ||
| Sony | AE1 | Burning smell | Dry joints R614 - can fit in alternative posn; check R611 & L607 for o/c | ||
| Sony | AE1 | Blank screen, no tuning memory when heated | Memory chip IC003 (M58655P) used in AE1 chassis requires -30V on pin 2 to operate. If -30V is lost, no station memory - check L807 for o/c in LOP when warm. L807 used as voltage dropper to reduce volts derived from transformer & its inductance (10mH) is important. It should always be replaced with original part, otherwise damage will occur - part no 1-407-504-00. | ||
| Sony | AE1 | Blank screen with flyback lines | R805 ( 1R2 ) o/c | ||
| Sony | 27XRTU | NO SYNC NO INPUT AT PIN 5 IC501 NO VIDEO OUTPUT AT | SAA5230 US CHECK Q002 12v REG |