Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KVDX271TU | Field cramp at top with fb lines | C5006 3.3mfd 160v on D1 PCB vert on lhs | ||
| Sony | KVDX271TU | Dead aft 30 mins | Replace caps in psu | ||
| Sony | KVDX2112U | No pic - sound ok | Replaced R807 & D803 [ replaced with 2X BYT11-1000 in series ]. | ||
| SONY | KVD2912 | FRAME FOLDOVER | REPLACE C531 680MFD25V | ||
| Sony | KVD2512 | SOUND CUTS OUT OR IS DISTORTED | REPLACE C615 | ||
| Sony | KVD2512 | Nicam int reverts to mono sound | Nicam buffer tr Q181 JC501 or 2SC2785 | ||
| Sony | KVC29 | No pic - sound, HT, crt htrs all ok | R807 burn up & change diode in series with it (causing leakage) | ||
| Sony | KVC252ID | Stuck on chan 00 | Replace EEPROM IC005 SDA 2546. (24C08 is the same.) | ||
| Sony | KV-C25/27 | Starts on Pr0 and every time Pr+ is depressed, it goes subsequently to Pr8, Pr16,Pr24 and to Pr0. | Change D008 5Vzener located near M58655 memory chip. | ||
| Sony | KV-C25/27 | Memory inoperative. Memory chip replacement failed. | Check that pin 2 of memory chip is at -30 volts. If not check D809, R830, L807 and the -30V smoothing cap. In two cases, L807 was found to be open cct. | ||
| Sony | KVB2923E | No pic or LED at sw on - EHT present. On entering a command LED blinks rapidly 3/4 times | Possible CRT low emiss - try decreasing value CRT heater ballast res to check | ||
| Sony | KVA2942U | Vol intermittent | R627 27R hi res | ||
| Sony | KVA2942S | FOR VERTICAL SHIFT AND HEIGHT PROBLEMS | ENTER SERVICE MODE AND MAKE SURE "GEOMETRY SET" IS OFF | ||
| Sony | KVA2932U | Garbled Txt chars briefly at sw on - no menu/text | X2001 on M board | ||
| Sony | KVA2922 | Tripping | C605 220µ in psu low cap |