TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	CDP510	Disc overruns or overruns reversely	Disc overruns because the optical block jams at the innermostlimit. same as cdp-35/55/65/70/203 etc.
SONY	CDP35	Will not read toc	Unit had been worked on by authorized servicer. would notfocus correctly or read toc. all adjustment controls including laserpower on fop, had been misadjusted. set rf level to correct value andunit would focus and sping disc at what appeared to be co
SONY	CDP70	Unit would not read toc	Unit had been severely misadjusted, including laser power onfop. adjusted unit and it appeared to be spinning disc at correct clvspeed, but toc would not be read and gfs was low.
SONY	CDP70	No operation and no display	When unit was powered on, there was no display and unitwould not operate.
SONY	KV1713	No color	No clock.
SONY	FD3A	No raster, replaced shorted c502	No raster w/sound.
SONY	D10	No audio	No audio. there is no b- (vcc) at pin 7/ic303 and at pin 24/ic302. l404 is disconnected.
SONY	CDP35	Does not read toc and tracking is not engaged	Found defective q605 and q606. then no focus - ic601defective. then no plck - ic201 defective. still same problem. foundtracking coil lead on fop unsoldered.
SONY	CFSW301	Reference numbers missing part numbers	In preliminary manual, page 2 ref. 1, 2, 3 are missingpart numbers: ref p/n description 1 a-3247-250-a holder (r) assy cassette 2 a-3247-248-a holder (l) assy cassette 3 a-3241-516-a cabinet (front) sub assy
SONY	CDP21	Chucking arm not making contact with disc table	Plastic cylinder on chucking arm, shown on enclosed drawing,is missing. i would like a part number for this piece, otherwise i mustreplace the whole chucking arm. -hq comments: this part is not available separately. tokyo's feeling isthat the roller r
SONY	CFS950	Incorrect part number	Incorrect p/n: x-3322-501-1 and correct p/n: x-3322-548-11 -hq comments: we have a s/b issued on this dated june 30, 1986 (taperecorder #209). the p/n on the s/b for the new detector is x-3322-540-1.this does work in cfs-950 as i have done a few myse
SONY	CDXR7	No display when front panel installed	When unit was assembled, pressure on front panel caused thedisplay to lose digits or disappear entirely. with front panel offdisplay was constant.
SONY	CCDV110	Cassette compartment will not fit	Tried to install cass. compartment from stock, however it wasdifferent than original assy. there was no screw hole on the left sidewhich is needed to mount the dew bracket. -hq comments: the assy from your stock was the original type, only usedfor v8 a
SONY	CCDV1	P/n for complete grip assembly	A customer would like to purchase a complete grip assy (sees/m, page 177 for individual parts). -hq comments: the grip assy is not available as a service part. pleaseadvise the customer to order individual parts.
SONY	SLHFR70	No functions	Unit would turn on, no functions at all, and all displayswere lit at the same time. examination revealed unit to be unthread butsystem control thought unit was still in thread mode. when power wasapplied, it would try to unthread but couldn't since it
SONY	TCFX7	Pl802	On page 3 of s/m, reference is made to a pl802. this is alsoshown in schematic on page 39. this is the rotation detector lamp.in the parts list there is a reference to pl801 only. i need a partnumber for pl802.
SONY	KV25XBR	Pulsating picture	Picture would pulsate at 1/2 sec rate.
SONY	KV2780R	Arcing pix tube, replace crt	For the first 10 to 15 min. picture tube would snap, thiscould be noticed at the neck of the tube. after the 15 min. the arcingwould stop. the screen would display a white flash when this occurred.
SONY	CCDV110	No remote operation and no vhf out	Found ps301 open on ss-64 board caused by defective rfu87uchaving a low resistance between pins 1 and 4 of the multiconnector. dcres. was about 15 kΩ leaky regulator in rfu87uc.
SONY	KV1396R	No tuning, replaced tuner	Unit was not tuning any stations.