Dicas Reparação




Modelo - Chassis P7


Pesquisa: P7 Enviar Dica Resolvida
Resultados 252
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyCDP70
NO DISC ROTATION - PART MISSING Part missing on chucking arm assy. Nowhere to be found inunit, with part missing chucking arm puts too much pressure on disccausing no rotation.
SonyCDP70
NO SLED OPERATION Sled motor would not run.
SonyCDP70
UNIT WOULD NOT PLAY ENTIRE DISC Unit will not track through disc.
SonyCDP701ES
NOISE IN R CH R-ch sounded very noisy. Sounded like Ju-Ju.
SonyKP7220
ERRATIC TUNING AND DISTORTED PICTURE, REPLACED R547, R546 Picture is dark and shrunken in on sides, will not staytuned on channel selected. Tuning is erratic.
SonySTP7J
MALFUNCTIONING MEMORY CHIP This unit worked fine except it was not possible to enter astation into memory. All inputs to the memory appeared to be correct.Replacing IC601 (CX761) resolved the problem.
SonyCDP701ES
REMOVAL OF SHORTING CLIP Even though new OPB was installed, unit did not operate.
SonyCDP701ES
CHUCKING MOTOR SWITCH NOT ENGAGED The unit rejected the disc intermittently. Opened the unitand found the chucking operation was not done, when we closed the disctable.
SonyTAP7F
REPLACEMENT XSISTOR LEADS TOO SHORT National Parts Center is substituting 2SA1141 for 2SA1097and 2SC2681 for 2SC2571. The substitute transistors have leads that aretoo short.
SonyCDP701ES
RF PLL AND CLV PLL OUT OF ADJUSTMENT Unit will not track discs with visible defect in program area.Some discs track on CDP-101 and CDP-200 with no problem. Possible causeof this could be the AUTO ANTISKATE circuit in the CDP-400 and CDP-701ES. -HQ COMMENTS: Careful electrical alignment, p
SonySTP75
DEFECTIVE CONTROL UPC - IC603 This unit did not light any display segments and there wasno tuning. A check of - control uPC - IC603 revealed that the IC wasinoperative.
SonyCDP701ES
DEAD UNIT The dead unit had IC108, IC109, IC110, IC801 - shorted.IC108 was physically melted, with a hole in the chip. We can duplicatethe problem by shooting C218, C214, C138 to ground for a fraction ofa second.
SonyKP7220
NO BLUE, REPLACED CRT AND D5320 The stopper diode associated with the blue CRT was shortingout about every 30-60 days. We found the problem to be caused by adefective CRT. The CRT was intermittently shorting. Evidently when alarge enough arc occurred the associated transient would d
SonyKP7220
FAINT CROSS HATCH ON THE SCREEN, REPLACED D303 This unit had a faint cross hatch superimposed on picture.
SonyKP7225
UNABLE BLUE HORIZONTAL CONVERGENCE, REPLACED Q5353 Blue horizontal convergence control inoperative.


Assistência TécnicaAs dicas apresentadas destinam-se a técnicos de eletrónica, a tentativa de reparação ou assistência sem ter conhecimentos de eletricidade e eletrónica, podem provocar danos mais graves aos equipamentos e, devido a tensões muito elevadas em alguns circuitos, graves danos fisicos que podem constituir um risco em determinadas reparações.

Não arrisque reparar equipamentos com tensões elevadas se não tiver conhecimentos técnicos para o fazer em segurança.

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