Dicas Reparação





Pesquisa:

Resultados 81876

MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonySTRD915DEAD - RESOLDERED RY901 Found one side of coil on the power relay unsoldered.
SonySTRD515R805 AND IC801 DEFECTIVE The +12V regulator IC801 had shorted, and R805 open.
SonySTRD1015DISPLAY FADES OUT IN SOME FUNCTION MODES - RESOLDERED T902 Unit came in dead, svcr replaced R-channel outputs, checkedout and gave back to cust. After 1 month, customer complained that when heswitched from Video 1, 2, or 3 source to Tuner, CD, or LD, display fadedout and audio muted. Servicer verified problem. C
SonySTRD1015ALL INPUT SIGNALS ARE HEARD AT THE SAME TIME - REPL IC501/2 Switching IC501/502 defective. I can hear all input signalsmixing at one time.
SonySTRD1011SLOW OUTPUT ON LEFT CHANNEL @ 300 HZ - NORMAL IN DANCE MODE When using video input 3 sound field dance mode, the outputat the left mainspeaker is approx. 30% lower than the right. To verifythe problem a generator was used at 300hz. Two other units with sameproblem. -HQ COMMENTS: Update 5/3/95: I checked the sa
SonySTRAV910DC AT THE OUTPUT OF Q716/715 IS -36V - REPL R706 Output one channel has DC volt -36v. Found resistor R706change value from 33 to 160k. Value of R706 is 33.
SonySAVA1REMOVAL OF FRONT PANELS The S/M indicates the front panel and grille are removeablefor servicing. However two different servicers have called this week,saying the dowel rods are glued in. This makes it difficult to servicethe unit without damage. Also applies to S/N 815449.
SonyMDS501AFTER RECORDING UNIT WILL ERASE ENTIRE DISC - REPL IC101,110 Unit worked fine all measurements were good, but whenrecording it would record informatin on head but after rec unit woulderase entire disc. Noticed pre 94 IC's in unit.
SonyMDS302DEAD - RESET AND RESOLDERED IC201 Unit totally dead. Grounded out IC202 on digital board.Unit then flashed standby, resoldered IC201, unit worked.
SonyMDS302EXTENSION CABLES Are there any extension cables available for this unit totest mechanical assy outside unit? -HQ COMMENTS: At the time I am writing this, there are no extensioncables available. I will fax Tokyo and ask if they will be available inthe near future.
SonyHCDH1200UNIT HAS NO POWER - REPLACED Q791 Q791 shorted on main board. No display or operation. Unitis dead.
SonyHCDC50PART # MISSING FOR HEAD LEAD CABLE The part number for the head lead cable is not listed in theservice manual. Head cables from the A & B decks plug into the MAINboard at connectors CN311 and CN321. -HQ COMMENTS: We had notified Kansas City Parts regarding this matter.Update 5/25/95: KC
SonyHCDC33AUTO REV NOT WORKING/GRINDING - ALIGN M2'S SMALL GEAR SHAFT When manually changing direction or when deck auto reversesthere is a grinding noise and unit stops or tries to play in the samedirection. Problem is usually with deck A. Small gear located on M2does not completely line up with larger gear causing te
SonyDTC700DOOR IS ALWAYS IN OPEN MODE, IC312 FAILED - REPLACED IC312 IC312 defective, pin 28 IC312 has 4.7v flashing on and offin cycle of 1 second. Cassette door open all the time. I hit closebutton it closes after 1 second it opens and stays open.
SonyCDPCX100MECH JAMS, WON'T LOAD CD'S - REPLACED CHUCKING CAM Mechanical noise during load cycle, won't load cd's.Found broken chucking cam, ref number 134. Unit may work several timesthen will jam.



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.

Verifique se o esquema está disponível na área de downloads