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Resultados 81876

MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKV20VM20DEAD, REPLACED FR1805 Dead.
SonyKV20V10ANODE LEAD ON FLYBACK MISSING, 1-540-006-32 Board came with the Flyback Anode Lead missing. -HQ COMMENTS: The part number is 1-540-006-32
SonyKV20TS32INTERMITTENT AUDIO/VIDEO, RE-SOLDERED JUMPER JW98 Intermittent audio/video. Found 16 volt line open due to jumper JW98 not having solder on one end, nearest edge of board.
SonyKV20TS27NO POWER, REPLACED D605 TV won't come on. Relay doesn't click. -SOLUTION : 5v standby was missing. Found D605 short.
SonyKV20M10INTERMITTENT/ IMMEDIATE SHUT DOWN Had a number of complaints regarding this model involvingintermittent and immediale shut down. The problem is caused by C517which de couples the vertical output IC from the +13 v line. When itfails, too much 60 HZ ripple is riding on the +13v line whi
SonyKV20EXR10INTERMITTENT LOSS OF LUMINANCE , REPLACED C305 Loss of luminance but chroma remains intact. Intermittentproblem can be simulated by tapping almost anywhere on chassis.
SonyKV13VM20NO LOADING, REPLACED FR1805 Cassette not loading, low audio.
SonyKV13VM20DEAD, REPLACED IC801 Dead.
SonyKV13TR28ROUND CIRCLE AFTER SET TURN OFF, C BOARD GROUND LOOSE When turning TV off a round circle about 1 inch size appearedin middle of screen with blue and red lines in it. A cracking noise camefrom inside TV.
SonyKPR46EX25RED MISCONVERGENCE INTERMITTENT, ADDED JUMPER WIRE Intermittent convergence of red tube, particularly at bottomof screen. Problem noticeable when D board flexed and resoldering didn'teliminate problem.
SonyKP46V15COLOR OFF WASHED OUT VIDEO, REPLACED IC1002 The picture has washed out color, looks like low chroma signal.
SonySPPA60HANDSET TRANSMITS/RECEIVES INTERMITTENTLY OR NOT AT ALL Handset of models SPPA20, 40, 60 develop intermittenttransmit or receive problems. Tapping or soldering around transformersreveals problem by restoring operation. For transmit problems culpritappears to be L512, 3 occurrances last week.
SonySPPA40HANDSET TRANSMITS/RECEIVES INTERMITTENTLY OR NOT AT ALL Handset of models SPPA20, 40, 60 develop intermittenttransmit or receive problems. Tapping or soldering around transformersreveals problem by restoring operation. For transmit problems culpritappears to be L512, 3 occurrances last week.
SonySPPA250AVAILABILITY OF EXTENSION CABLES Is there an extension cable to facilitate troubleshootingbase main board and base key board. This is difficult as the base keyboard plugs into the base main board. -HQ COMMENTS: Tokyo fax No. 95-7-0400: Move key bard away from cabinetto perform troubles
SonySPPA20HANDSET TRANSMITS/RECEIVES INTERMITTENTLY OR NOT AT ALL Handset of models SPPA20, 40, 60 develop intermittenttransmit or receive problems. Tapping or soldering around transformersreveals problem by restoring operation. For transmit problems culpritappears to be L512, 3 occurrances last week.



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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