Dicas Reparação SONY
Modelo - Chassis
Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2648R | NO PICTURE, REPLACED Q602 AND Q603 | It first appeared as if Q602 shorted and that replacementwould solve the problem. However after about one hour it would shortout again. Q603 was discovered to have E-B leakage. | ||
| Sony | KV2647R | NO OPERATION, REPLACE IC-502 | Set would not come on, no sound or picture. Found IC501loading down Vcc on chip to 2VDC, should be 12.5VDC. | ||
| Sony | KV2647R | INCORRECT TUNING, RESOLDER R-085 | When unit turned on, it would come on with different channel. | ||
| Sony | KV2647R | FAINT LINES ON THE SCREEN | Faint lines on left side of picture. These are vertical linesspaced about one inch apart. They vary in thickness from one eighth inchto nothing as they approach the center of the screen. -HQ COMMENTS: Slight ringing (vertical bars) visible on low brig | ||
| Sony | KV2145R | NO PICTURE, RESOLDER C534 | Set would blow the horiz. output, at low voltage. I noticedH. frequency doubled. Found C534 not grounded. | ||
| Sony | KV1948R | PICTURE DISTORTION (SLIGHT TEAR), NORMAL | A slight horiz. band/pull under conditions of varying beamcurrent. Scene changes or large areas of light next to dark. This bend/pull is very slight and I have observed the same symptom on otherKV-1948R models. We have given careful attention to the B | ||
| Sony | KV1947R | POOR REMOTE OPERATION, REPLACED IC101 | Intermittent (2-3 weeks) operation in remote and push-buttonfailure. | ||
| Sony | KV1947R | NO VHF, REPLACE IC002 | Set had UHF operation but no VHF operation. No VC was presenton tuner. All switching voltages were correct and verified against aKV-1948R. Applying external DC to VC line tuned all stations. | ||
| Sony | KX1901 | LIGHTER RASTER ON THE TOP | These units had a light area across the top of the screen.The first 12 to 15 scan lines after vertical blanking were lighter thanthe remainder of the raster. It looks like the units had a poor blacklevel just after vert. blanking. Also these units have | ||
| Sony | KV1222R | INCORRECT MECHANICAL OPERATION | The door assy will not stay closed due to the fact that thedoor retainer which is a plastic material, will not engage the catch onthe door securely in order to keep the door closed. This condition isprevalent on at least a dozen sets or more at the acco | ||
| Sony | KV1221R | SHUT DOWN, REPLACED R001 | After warm-up (or after simply plugging in and not turningon for 1/2 hour or so), the unit could not be powered up. If unit ison, it will then not turn off. Remote or manual same. IC001 was bad andthe relay drive transistor as originally suspected. | ||
| Sony | KV1215 | DEAD, REPLACED L309 | While I was servicing the unit using an external DC powersupply, I noticed the absence of audio. Inspection revealed no 18Vbeing supplied to the SC board. Resistance of 18V line to groundmeasured about 1K ohms, should be about 180 ohms. I then found L | ||
| Sony | KV1207 | DEAD | 12V line was being grounded by R221 lead touching ground. | ||
| Sony | VTX1000R | INCORRECT TUNING OPERATION | The customer complaint was the memory worked fine with theexception that it would not remember more than one channel beginning withthe number 3. It would remember any channel beginning with 3 but notmore than one. | ||
| Sony | KX1901 | NOISE LINES ON THE SCREEN | There were several lines in the raster, about 2 inches downfrom the top, looked like retrace lines. These were present only whenthe set was cold after warmp up the lines would disappear. |