TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	WMD6C	Motor too fast and no audio	The motor runs too fast and there was no audio in pb mode.there was no b+ (6v) applied to ic601.
SONY	KV25XBR	Missing part #	We need the bezel assy for kv-25xbr in black which usesa slightly darker bezel than the one for beige or plum.is there a different part? -hq comments: kv-25xbr is marketed in only one bezel gray shade version.but in practice it may vary within the produ
SONY	D5	Disc overrun	In service mode, the disc motor turns very fast.
SONY	FD40A	Pin cushion distortion, replaced q856	Set displayed severe pincushion distortion. inspection ofthis transistor revealed e to b region was open.
SONY	CCDV8	Snowy playback picture	Snow on picture, missing one rf envelope (defective drum).
SONY	CCDV8	No video due to broken 24 pin connector	Inoperative loss of video on vhf out. video out ok.
SONY	CFS300	No sound from tape player	Am/fm works fine, but no sound from cassette player.
SONY	SL2001	Unit shuts down after a few seconds	Unit shuts down a few seconds after play button is depressed.
SONY	SLHF900	Intermittent audio pop	Dealer has reported that four units in stock have the follow-ing problems: during pause/edit, unit give an audio pop intermittently. -hq comments: if a pop noise is heard in hi-fi playback, add a 4.7ufelectrolytic capacitor across r510 on the af-9 boar
SONY	SL2410	New guide pins are hitting cassette lid while loading	New guide pins are hitting cassette lid while loading result-ing in noisy operation. -hq comments: you must use the part number in the s/m for the guide #1and #2. the pin kit a-6759-107-a cannot be used in this model. part # needed: x-3669-429-0
SONY	TCFX520R	No ff/rew	Unit would not go into ff or rew. brakes remained on. playand music scan operated normally.
SONY	TCFX707R	Unit dead - no operation	Found r506 blown, replaced same. transport worked, but nodisplay and no playback audio. found ps302 open, replaced same. all ok.ran several hours. noticed pb level started to drop intermittently.later, the display showed low and the audio had dropped
SONY	SL5200	Distorted audio	Unit works properly in 3 shops. when in customer,with video from vcr, beta hi-fi will drop out. happens when recordinglevel exceeds 6 on meter in manual or anytime in audio record level.when recording fm audio on tv audio, no problem. dynamic range?
SONY	STRVX550	P/n for black cabinet parts	We need the part number for the black upper case, as well asnumbers for the other black style cabinet parts. -hq comments: part number is 4-886-109-31. the part is the same ascdp-610es
SONY	BMC550	Drum ass'y	The s/m of bmc-500 unit gives the same part number as well asfor the bmc-110. but they are different, cannot be mounted properly onthe a-6050-209-a. the opening is much smaller and will not go over thescrew holding the track which the threading ring ri
SONY	WM16	Stop button stuck down	Stop button stuck down.
SONY	BMC110	Picture break up when recording outdoors	When recording outdoors, the picture is intermittent with theedges of objects breaking up. in all cases kodak l750 tape was beingused. in one case tdk l750 tape was used. tdk makes kodak tape. -hq comments: it was determined that the problem occurred
SONY	KV1952RX	No part number for cp003, 1-417-087-00	No part number in the service manual for cp003 located on the mu board.
SONY	KV2680R	No picture and no sound, c-140 on "a" board	Problem was no picture and no sound. asc hooked up thiskv-2680r p3 chassis to his rca test jig model 10j106a using telematicadaptor 10j733 (color tv s/b #212).
SONY	XM120	Intermittently stays in protection mode	Unit would intermittently go into protection mode when turnedon, or while playing. also when acc power was removed, unit would go intoprotection mode and would not shut off. unit continued to draw current.