Dicas Reparação SONY
Modelo - Chassis
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Resultados 18938
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | TV790 | H PICTURE DISTORTION | Horizontal frequency changes after short warm-up. | ||
| Sony | TV123 | NO PICTURE | Q502 runs red hot for about one week and then fails, causingno raster. | ||
| Sony | KX1901 | V FOLDOVER ON THE BOTTOM | Severe foldover on bottom. | ||
| Sony | KV2648R | GRAY BAR ON THE SCREEN | Gray bar very dark on left side and becoming lighter lookingtoward right side of CRT. | ||
| Sony | KV2647R | JAILBARS, POOR GROUND ON "S" BOARD | Jailbars present on left side of screen more pronounced onthe higher channels. Found poor ground on S board opposite the groundingposts from the tuner. | ||
| Sony | KV2647R | NO VERTICAL SWEEP, REPLACE RV2206 | No vertical sweep. Voltage at IC501 Pin 11 should be 6.3 VDC.Actual reading was 2.2 VDC. Found vertical hold control had an 8000 ohmreading center tap to case at all times. | ||
| Sony | KV2643R | VERTICAL LINE ON THE PICTURE, REMOUNT Q701 | Vertical line appears in the center of screen on brightscenes. Found Q701 installed wrong at factory. C was connected to E.B was connected to C and E was connected to B. | ||
| Sony | KV2602 | PICTURE BLANKING, ADJ JERROLD CABLE BOX, VARI-LOSER | When using models with 30P chassis on cable systems thatscramble the pay channels (by removing the sync pulses at the head end andreinserting them thru a converter) the sync is sometimes compressed tooclose to blanking. This apparently reacts with the k | ||
| Sony | KV1946R | SHUT DOWN, REPLACE IC601 | Set turns off by itself after 45 minutes. | ||
| Sony | KV1946R | SOUND AND PICTURE DISTORTION, REPLACE Q051 | Set would not go all the way off. When turned off, pix woulddim, sound goes off. Found Q051 relay drive transistor completelyBURNED OUT. | ||
| Sony | KV1945RS | INTERMITTENT SOUND, REPLACED IC202 | Unit had very intermittent sound. | ||
| Sony | KV1945R | SOUND POP NOISE, REPLACED C226 | Sound would pop off and on intermittently. | ||
| Sony | KV1922 | NO LOW VHF | No low band VHF-UHF OK. VHF high OK. No negative 6 volts atVHF HI terminal of tuner apply external -6 volts could tune in low band.Q102 VHF HI drive had no negative voltage at base troubleshooting found-12V rectifier being loaded. | ||
| Sony | KV1746R | INTERMITTENT SHUT DOWN , REPLACED Q901 | This set very intermittently shuts down. It could run a weekjust fine. | ||
| Sony | KP7220 | PICTURE DISTORTION, REPLACED D5319 | Overscan. |