Dicas Reparação
Modelo - Chassis XR20
Pesquisa: XR20 Enviar Dica Resolvida
Resultados 30
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV20EXR20 | HORIZONTAL SWEEP | KV20EXR20 Insufficient horizontal sweep IC603 is the wrong IC for this chassis. | On the G"" board all the B+ on the supply. IC503 is defective SEC135. "" | Muller |
| Sony | KV-20EXR20 | vídeo oscuro | Q106 | ||
| Sony | KV-21EXR20 | Não liga | IC651. (STR-S6301) | ||
| Sony | KV-20EXR20 | vídeo oscuro | Q106 | ||
| Sony | KV-21EXR20 | No prende | IC651. (STR-S6301) | ||
| Sony | KV20EXR20 | SHUT DOWN, REPLACED Q605 | Unit would power up and immediately shut down. Problemcaused by leaky transistor in Over Current Protect double latch circuit,Q605/G board. Problems with latch circuitry can be thorny. Problem foundby lifing significant loads and then monitoring sh | ||
| Sony | KV27EXR20 | NO PICTURE OR SOUND, REPLACED D310 | No raster. Set will power up and down. High voltage ispresent. Video is muted. Set has no vertical sweep, but a white line isobserved when increasing G2. IC302/pin 47 was only 1.6v. | ||
| Sony | KPR53EXR20 | DEAD, REPLACED Q601, Q602 Q614, AND D615 | Unit dead, no picture, no sound. After shorted transistors Q601 and Q602 were replaced unit still did not come on. Found leaky transistor Q614 and diode D615 in 230V line. SOLUTION: Replace defective parts. | ||
| Sony | KV20EXR20 | NO AUDIO, RE-PLUGED A24 CONNECTOR | Found plug from power supply unplugged, A24. | ||
| Sony | KV20EXR20 | DEAD, REPLACED IC651 | Dead. | ||
| Sony | KV20EXR20 | SHUT DOWN, REPLACED R656, AND C653 | Unit was going into shut down due to the 1350 line going high. | ||
| Sony | KV20EXR20 | NARROW PICTURE, REPLACED Q611 ON THE "G" BOARD | Picture is narrow. B+ was 112VDC. | ||
| Sony | KV27EXR20 | CLOCK GAINS TIME, SEE SERVICE BULLETIN 87R1 | Clock gains 2 to 12 minutes per hour. -HQ COMMENTS: Please add a 0.1uf capacitor between the base of Q108and ground. Please refer to Service Bulletin 87R1 Schematic diagramfor KV20EXR10 for additional information. | ||
| Sony | KV20EXR20 | NO PICTURE, REPLACED R702 ("C" BOARD) | No picture but has sound. | ||
| Sony | KV20EXR20 | SHUT DOWN AT TURN ON, REPLACED Q604 AND Q605 (OVP) | Press power, High voltage comes up and unit shuts down. Q604and Q605 are OVP circuit. |