Dicas Reparação




Modelo - Chassis


Pesquisa: Enviar Dica Resolvida
Resultados 81401
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(Chassis)
SintomaCausaSoluçãoPor:
SonyITA205
IC-201 PIN OUT IS INCORRECT The pin out of IC-201 is wrong in the unit. The servicemanual is correct.
SonyCDX7580
SERVICE MANUAL CORRECTION According to the schematic diagram in the service manual, thecollector of Q-418 is connected to the collector of Q-416. This isincorrect.
SonyCDX7560
SERVICE MANUAL CORRECTION According to the schematic diagram in the service manual, thecollector of Q-418 is connected to the collector of Q-416. This isincorrect.
SonyKV32XBR50
WHITE SPOTS - DOUBLE IMAGE, REPLACED IC-1303 Picture had a double image. Like an antenna problem pluswhite spots on the screen.
SonyKPR46EX25
PICTURE WAS DARK, FOUND R-1256 AND JW-82 TOUCHING ("B") Picture was dark and you could not adjust the brightness. G-2was turned up in order to compensate for no brightness.
SonySLV575UC
POWER SUPPLY BUZZES - UNIT IS INOPERABLE Power supply makes buzzing sound. Unit does not function.
SonySLV676UC
UNIT SHUTS DOWN Unit shuts down. I've been hearing this from many of myservicers.
SonyCFD454
IC-302 CONFIGURATION IC-302 the Graphic Equalizer/Volume Control IC is erroneouslylisted in the service manual's schematic as a CXA1351. It is a CXA1351S.It is also erroneously drawn in both the schematic and the board layout asa 22 pin IC. It is a 30 pin IC. -HQ COMMENTS
SonyKV2792R
SNOWY PICTURE ON UPPER CHANNELS, REPLACE ANT SW Q-1411 &1412 Low band channels are ok. High band is ok until channel 9.At that point the channels get increasingly snowy. Super band channels(23-36) were very bad. Replaced tuner which did not help.
SonyTCDD3
ENCODER ALIGNMENT IN A LOADED POSITION If a gear breaks during the load sequence, it is difficult toalign the mechanism after replacing the broken part.
SonyCDPC305
INTERMITTENT LOCK-UP Intermittent the unit locks-up. The BU bracket doesn't comeup. Problem more consistent on Shuffle mode because the bracket goes upand down more often. Found flat spots on rubber rollers Ref. No. 59. Thetray will not position right so the disc count w
SonyD35
UNIT FUNCTIONS STRANGELY The unit was displaying strange problems: Once it didn't seedisc, kept on displaying No disc. Did not recognize the door switch andshow charge without BP5. Left unit without back-up battery for one hourbut didn't solve the problem. Checked reset circu
SonyTCS430
NO OUTPUT OR SOUND No output or sound.
SonyITA550
NO ON HOOK DIAL Customer complaint was no on hook dial. Found resistor R-240to have a cold solder joint.
SonyD35
BOARD IN UNIT DOES NOT MATCH SERVICE MANUAL Servicer needs additional information. Unit is not workingand IC-407 is getting hot. Board layout of unit does not match servicemanual. IC-407 and associated circuit is not on schematic. Please supplycorrect schematic. -HQ COMMENTS: IC-407 is a 3 pi


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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