Dicas Reparação
Modelo - Chassis KPR4600
Pesquisa: KPR4600 Enviar Dica Resolvida
Resultados 12
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KPR4600A | ALL CHANNELS WORK OK EXCEPT ONE, REPLACED IC-002 | All channels work except No. 3 (audio good) had display. | ||
| Sony | KPR4600B | NO LAST CHANNEL MEMORY AT TURN ON, REPLACED Q-308 AND D-339 | No last channel memory at turn on. Also the set wouldintermittently come on with a de-tuned picture or possibly a weirdcombination of numbers in the channel display area. We noted the resetvoltage to pin 7, IC-001 on M board never got over 1.5VDC and a | ||
| Sony | KPR4600 | NO CHANNEL MEMORY,REPLACED Q-308 AND D-339 | Above symptoms were intermittent when turning set on and offwith power button. Reset pulse was insufficient. Found a leaky base toemitter Q308 and leaky D339. | ||
| Sony | KPR4600 | OUT OF CONVERGENCE AT MAX BRIGHTNER, REPLACED Q-651 | At max brightness, convergence would shift vertically, redabove and green below, with blue in the middle. Found leaky Q651 causingpoor regulation. B+ line about 5 volts lower. | ||
| Sony | KPR4600 | UNIT DEAD, REPLACED IC-301 | The unit is dead. | ||
| Sony | KPR4600 | STREAKING IN PICTURE, REPLACED Q-3349 | Unit had streaking in picture. By flexing BA board, problemwould clear. Found transistor Q3349 defective. Moving just transistor, Iwas able to produce problem. I think transistor had a break inside. | ||
| Sony | KPR4600A | NO PART NUMBER FOR CABINET, NOT RECOMMENED TO REPLACE | No part number for cabinet. | ||
| Sony | KPR4600B | NO PICTURE, REPLACED Q-956 | Unit had no picture. Sound would vary up and down. Found LOTtransistor shorted. | ||
| Sony | KPR4600B | NO PICTURE | Set would lose display and scan channels. No picture.Traced problem to open T502. | ||
| Sony | KPR4600 | CONVERGENCE DISTORTION, REPLACED IC-5505 | Unable to correct severe keystone error of red and bluepattern. Red was more severe. Waveform at base of Q5510 and Q5517 wasdistorted, namely the right portion of vertical deflection was missing.This distortion was traced back to output of IC5505. | ||
| Sony | KPR4600 | NO SOUND, REPLACED IC-3010 | No sound, found switch voltage (4VDC) reading 1.5VDC onIC3010. | ||
| Sony | KPR4600 | SHUT DOWN, REPLACED BLUE CRT | Immediate shut down at turn on. Could hear arcing from unit.With back removed could see blue CRT arcing. |