Dicas Reparação




Modelo - Chassis SLV555UC


Pesquisa: SLV555UC Enviar Dica Resolvida
Resultados 34
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(Chassis)
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SonySLV555UC
DISTORTED AUDIO ON TUNER. When in tuner mode, the audio would sound distorted, but ontape the audio sounds fine.
SonySLV555UC
DEAD SET: REPLACE C105 IN POWER SUPPLY. The unit was dead. The OVP diode, D207, was found to beshorted. This was caused by the supply running at too low a frequency,about 20 KHZ, and transferring too much power to the secondary. Theproblem was caused by C105. It had opened.
SonySLV555UC
TAPE DOES NOT EJECT PROPERLY:-CLEAN DRIED GREASE FROM 163 Tape does not eject correctly. Grease on rvs arm assy ref 163has dried and become sticky. The arm stays in the loaded positon andprevents tape from ejecting completly.
SonySLV555UC
TAPE WILL NOT PLAY AFTER REWOUND TO BEGINNING: CAPSTAN MOTOR The tape will not play when it is completely rewound to thebeginning. If the tape is removed and ran forward a few inches in anothermachine, then replaced in this unit it will play fine.
SonySLV555UC
NO POWER Unit would not power up.
SonySLV555UC
UNIT ENTERS PLAY MODE BUT DRUM WOULD NOT LOCK The unit would enter Play mode but drum would not lock. RFenvelope was present. The counter would still move even in Stop mode.
SonySLV555UC
POPPING When the unit is tuned to an unused channel, popping will beheard. On station no problem. Checked another unit and found the samesound. The audio popping heard on the speakers is of a low level. Thisonly occurs on RF input, line in/outs no problem.
SonySLV555UC
LOST OF CONTRAST IN LOOP THROUGH When the playback output signal of another unit is loopedthrough the SLV-555UC, the picture looses contrast.
SonySLV555UC
BLANK OR BLUE SCREEN DURING SOME 8MM MODELS SCAN MODE During scan modes of various 8mm models, the unit may blank,distort the picture or present a blue screen.
SonySLV555UC
INTERMITTENT DROPOUTS - NOISE ON PICTURE Customer complained of excessive dropouts. Upon checking ma-chine on normal Play, machine performed ok. Going from normal Play to Cueand Review and then Play dropouts appeared and then would clear up.
SonySLV555UC
DOTS SUPERIMPOSED OVER VIDEO ON E-E Superimposed on E-E video is a series of white dots across en-tire screen spaced at 1/2 inch intervals vertically and horizontally.If any function is accessed (i.e. channel change, etc.) they will move onscreen display area and return in one second.
SonySLV555UC
CHANNELS CONSTANTLY CHANGING As soon as power was turned on, channels would start changingdown as if you were holding the channel down button down.
SonySLV555UC
NO FF/REWIND/PLAY Complaint of no tape movement on unit. Changing the MD-22board from another unit to this unit would make this unit operate ok. Thetechnician had inherited this unit from another technician with PH-001 andPH-002 out. He had installed the sensors by com
SonySLV555UC
WILL NOT LOAD SOME BRANDS OF TAPE When attempting to load certain non-Sony video tapes (espec-ially rental tapes), the machine would not accept them. These tapes workin other models/brands. The tape submitted by the customer doesn't havethe release button extend out of the case to the
SonySLV555UC
PART NUMBER OF TENSION REGULATOR ARM ASSEMBLY There is no reference or part number in the service manual forthe tension regulator arm assembly.


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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