Dicas Reparação




Modelo - Chassis


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Resultados 81533
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyCCDTR74
INTERMITTENT NO POWER (FOUND COLD SOLDER ON J1 ON DD-80 MCB) Unit was intermittently dead. Found problem to be caused bycold solder on J1 of the DD-80 MCB.
SonyCCDTR74
EJECTS AFTER TRYING TO LOAD (REF 771 WAS JAMMED ON REF 752) After trying to load (with or without a tape) the unit wouldgo to eject mode. Problem was found to be caused by the pinch rollerassy, ref. 771, slipping over the base of the take-up guide assy., ref.752, causing these 2 parts to jam with each other.
SonyCCDTR74
EATS TAPES (FOUND TG4, REF. 765, WAS BENT) Unit would eat tapes. Found problem to be caused by TG4, ref.765, being bent.
SonyCCDTR74
NO POWER IN CAM MODE (FOUND DD-80 CN003 LOOSE FROM VC-167) Unit had no power in camera mode. Problem was caused by CN003of the DD-80 board which had come loose from the VC-167 board.
SonyCCDTR74
LINES THROUGH PICTURE (FOUND POOR SOLDERING OF IC201) Customer complaint was lines through picture found camerapicture wad distorted. Problem was found to be caused by IC201 on theVC-167 MCB, which was poorly soldered. IC201 is the Y/C processor.
SonyCCDTR74
DEAD (FOUND LOOSE CONNECTIONS AROUND IC400) Unit was dead. Problem was found to be caused by looseconnections around IC400 on the VC-167 MCB.
SonyCCDTR74
NO EJECT (FOUND SOLDER BRIDGE ON FP249 SHORTING SENSOR H002) Unit would not eject. Found problem to be caused by a solderbridge on FP-249 (below the takeup reel). The bridge shorted reelhall sensor H002, preventing any reel pulses from being generated.
SonyCCDTR74
EATS TAPES (FOUND TESNSION SPRING, REF. 783 HAD COME LOOSE) Unit eats tape. Problem was found to be caused by tensionspring ref. 783, which had come loose.
SonyCCDTR74
EATS TAPES (FOUND TENSION SPRING, REF. 781, HAD COME LOOSE) Unit eats tapes. Found problem to be caused by tension spring,ref. 781, coming loose.
SonyCCDTR74
DEAD (FOUND POOR SOLDERING ON CN003 ON DD-80 MCB) Unit was dead (would not even eject). Found problem to becaused by poor soldering of CN003 on the DD-80 MCB.
SonyCCDTR74
EJECTS IMMEDIATELY AFTER LOADING (REF # 752 WAS DISLODGED) Immediately after loading a tape, the unit would eject thetape. Found that the exit guide, ref. # 752, had come out of the track.
SonyCCDTR74
WON'T LOAD TAPE (FOUND DRUM WOULD NOT ROTATE; REPLACED DRUM) Unit would not load tape. Found that the drum had a tightspot which prevented it from rotating.
SonyCCDTR74
NO REW OR REVIEW, NOISE IN PLAY (MAGNET ON REEL CAME LOOSE) The unit had no rewind or review. Noise could be heard duringplay. Found problem to be caused by the magnet on the supply reel comingloose.
SonyCCDTR74
DEAD (FOUND LOOSE CONNECTOR BETWEEN POWER MCB & MAIN MCB) The unit was dead found a loose connector between the powerboard and the main board.
SonyCCDTR74
WON'T STAY IN RECORD (FOUND MODE SWITCH IN WRONG POSITION) Unit would not stay in record when the start/stop button waspressed. Found that the start/stop mode select switch was set in theposition which allows recordings to be made only while the start/stopswitch is held in. This is an operational feature of th


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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