TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	D5	Defective stator motor	Unit would play first disc ok. second disc would spin buttoc could not be read correctly. if set were shut off and then turnedback on, unit would not play the second disc.
SONY	KV1981R	Intermittent bright glow, r545 wrong value	Customer complained of intermittent bright glow across topof crt. inspection revealed possible cause was over-scan because i couldnot reduce vertical size.
SONY	KV25DXR	Power supply	Unit came in with blown power supply. all parts founddefective were replaced. unit was turned on and exhibited foldover at topand jittery pix. ic651, q651, q652 failed again. problem was found to beon gb board.
SONY	CCDV110	Picture roll in playback	Picture roll in playback.
SONY	SLHF600	Ic1 on ss-32 board is the wrong ic	Unit has mb88551-130g ic in unit which is the number onpage 87 of owners manual but mb8551-162g is the number in the partslisting. -hq comments: mb88551-162g is the correct ic - page 87 has the wrongmodel number for ic1.
SONY	KV25DXR	Dark lines h&v in picture at power on and hmh	At power on there were dark horiz. and vert. lines in thepicture with the video in the background. after about 20 sec they woulddisappear and the picture would be normal. going into hmh the lines wouldalso be there and they would stay until go was pres
SONY	SLHF750	Hum bar, e-e mode	Hum bar floats through pix in e-e mode. ps voltages appearnormal, but found open zener diode d003 in power supply. problem mostnoticeable on ch. 5. did not appear when playing back pre-recorded tapes.
SONY	HVM302	Auto iris over compensates for bright lighting	Camera used for outdoor security surveillance. bright lightcauses iris to over compensate - produces a dark picture. -hq comments: have unit sent to service center for service adjustments.please inform of results.
SONY	CDP620ESII	Disc overruns	Does not read toc, overspins.
SONY	SLHFT7	Key pad buttons will not activate any function	Fuse (f002 on ps-97 board) blown and no functions from keypad. tuner timer can be programmed and remote works all functions.proper voltages measured on pins of ic401 from key pad.
SONY	KPR4110	No picture - sound ok, see service bulletin 310r	Unit had no picture. sound ok. cp1 thru cp6 open.both convergence ic's shorted.
SONY	KPR4110	Need p/n for spring behind control panel, 4-375-439-02	There is no part # for the black spring behind the controlpanel. it is mounted to the top of the cabinet. -hq comments: the catch level part number is 4-375-439-02.
SONY	KV1365	Channel up/down buttons break	The above model has the channel up or down buttons broken.to correct the problem cabinet has to be replaced. buttons are part ofcabinet.
SONY	KPR36XBR	Circle on screen, defective screen	A perfect circle (like somebody drew it using a compass)was on screen. more obvious when looking at sides, with or withoutpicture.
SONY	APMX4	New speakers available	Kc now has available both left and right speakers for thefollowing models.kpr-36xbr kv-25vxrkv-20xbrii kv-25xbriia-4553-214-a left speakera-4553-215-a right speaker -hq comments: we will issue a s/b as soon as possible.
SONY	KV25XBR	Connecting cord to pc	Customer has a kv-25xbr monitor and a jbm-5140 laptopcomputer. he says computer has a 10 pin output. do we make a connectingcord that he can use?
SONY	EVS700U	Head clogging	Mr. takesue in burbank has discovered that extreme heat hasbeen causing a lot of head clogging.
SONY	BMC550	P/n for tripod plate	Page 105 in s/m shows tripod plate (to the right ofref. #170). please inform p/n. -hq comments: p/n is 3-690-251-01 and is now registered at kcp.this is also used for bmc-660/1000. a s/b will be issued.
SONY	TCW5	Intermittent squealing in play or record	A squealing noise is generated from the mechanism. this noise is not electronic. servicer had replaced thrust retainer once before.
SONY	SLHFT7	Audio problem	Audio problem (beta hi-fi) may be int. with weak andchanging audio (beta hi-fi) left channel cut out etc.