Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CCDV8AFU | NO VIEWFINDER FUNCTION | No playback thru viewfinder. | ||
| Sony | TAAX520 | VOLUME DISPLAY DID NOT INDICATE CORRECTLY | The audio level LEDs would not rise and fall with equallinearity. By applying an external DC control voltage to the LED driver,they would work OK. | ||
| Sony | KV25XBR | HIGH PITCHED SQUEAL | Customer complained of high pitched squeal. He also told methat he hears the same noise from several XBR units and also competitionmodels also. I told him I would see what I could do to alleviate theproblem. Using my sniffer, a hose with a small trans | ||
| Sony | KV20XBR | ONLY SLEEP LITE AND RGB LEDS WERE LIT | When set turned on, only sleep lite and RGB LEDWe found horizontal output transistor was shorted. | ||
| Sony | CCDM8U | NO DRUM SERVO LOCK - UNIT SHUTS DOWN | Unit shuts down after 1 or 2 sec. operation. Found REF V,Pin 7 SV-16 board not locked. Traced problem to X681 VC-4 board. | ||
| Sony | CCDV110 | TITLE AND SUBTITLE DON | Title and subtitle work but will not hold in memory. | ||
| Sony | CCDV110 | DOA | Unit came in DOA. | ||
| Sony | KV25XBR | EXCESSIVE HV | The unit would go into HV shut down. We found after defeatingthe shut down circuit that the B+ was normal but that the HV was 35KV withno beam current/32KV max beam. We traced the problem to a defective C1664on the D board. This is the main tuning cap | ||
| Sony | KV2780R | COLOR TOO BRIGHT, REPLACE JUNGLE IC-301 ON "A' BOARD | Color intensity too high. | ||
| Sony | KV2680R | POWER UP ONLY, C-140 SHORTED | Set would power up from the front panel. Couldnoff. No functions worked. Sleep light did not light. Memory chip andPLL controller had been changed by ASC. | ||
| Sony | KV1357R | CANNOT PROGRAM TUNING, REPLACED IC-201 | You could go through and turn channel set on and program allstations and everything appeared to work normally. But when you turnedchannel set switch off, set would scan thru stations until VC on tunerreached max VC. Memory chip IC-002 and PLL controlle | ||
| Sony | KV2681R | SET LOCK UP AT TURN ON, REPLACE R-611 ON A BOARD | Set would turn on and off at power switch only. No otherfunction would work. On the X board the only problem that we could findwas no clock on VIP chip IC031. Chip and crystal had been replaced. | ||
| Sony | KV2782R | POP IN SOUND ON BRIGHT TO DARK PIX TRANSITIONS, C-672 | Sound pops on scenes such as Star War type laser blasts &quick flash backs. 18V power supply rises from 18-23V (dark to bright)and decays rapidly with a spike preceeding decay (bright to dark). | ||
| Sony | KPR4110 | RED CONVERGENCE, YOKE WIRES BROKEN OFF | Wires to red and green CRT yokes are pulled off duringshipment because they are routed too tight. | ||
| Sony | SLHF1000 | NO REC OR PB VIDEO | No REC or PB video. EE light on. Found Pins 10, 11 and 12(over REC/PB/EE) of IC501 high. Vcc/clock/trigger/reset/data allapparently OK. |