Dicas Reparação





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Resultados 81875

MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonySPP2000LOW BATTERY AFTER CHARGING. Customer states they have low battery after charging for longtime.
SonySPP1010LOW BATTERY AFTER CHARGING. Customer states they have low battery after charging for longtime.
SonyTCWR545B DECK WILL NOT OPEN - REPLACED MOTOR DRIVE IC #803 B deck will not open , will cycle back and forth. Foundpositive voltage at pin 8 & 3 of IC803.
SonyTCWR445A DECK MAKES NOISE & DOESN'T ENGAGE - REPL MOTOR M2 Mechanical noise, deck A doesn't function properly. A decknever engages due to the clutch not locking into the M2 motors clutchassy.
SonyTCK717ESUNIT NOT WORKING - REPLACE DEFECTIVE Q808 Q808 defective, only 8v dc instead of 12v supply to M1053.
SonySTRGX909ESNO CENTER CHANNEL - REPLACED MICROPROCESSOR IC150 No center channel audio out. Center channel works but therelay doesn't close. Found pin 55 of IC150 not pulsing upt to +5v whenSRS was turned on.
SonySTRGX900ESLOUD STATIC ON ALL SPEAKERS IN SURROUND MODE - REPL IC401 Loud static heard on all speakers in theater mode. Pulsingsound heard on R & L rear speakers in live mode. Low sound heard inleft front & rear speakers, no sound out of right front & center speakersin every other mode except acoustic.
SonySTRD715NO SOUND AT ALL FROM REAR CHANNEL - REPL IC621 AND Q614 IC621 had DC pin 4 output Q614 shorted. No rear channeloutput.
SonySTRD1090AUDIO NOISE - REPLACED 5V REGULATOR IC953 IC953 defective output became 3.4V instead of 5V.
SonyMDS501EJECTS DISCS - REPLACED MISSHAPEN RECORD HEAD HR901 When you insert a disc unit attempts to read and ejects.Found record head on two units to be bent back preventing disc fromcompletely loading.
SonyHCDH51NO TAPE OF CD FUNCTIONS - REPL IC341 No Mechanical control over tape of CD.
SonyHCDD150NO POWER - REPLACED MAIN MICROPROCESSOR IC601 No power, all reset lines ok. osc ok. int ok. 15 v ok.
SonyHCDC90TUNER INOPERATIVE - REPLACED IC51(FM/AM IF) ON TUNER BOARD Tuner does not play stereo when mono/stereo button was pushed, the unit mutes.
SonyHCDC90NO RECEPTION - REPLACED D109 No reception number's okay on display.
SonyHCDC50UCD PLAYER NOT WORKING - CLEANED DUST FROM OPTICAL LENS Unit reads no disc.



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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