TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	STRV45	No audio output	No audio output. had audio to relay but relay was notengaging.
SONY	XR65	Distorted sound	Distortion in audio when listening to radio (fm) and systemeq switch was turned on, but system eq did not distort on tape. but iflistening to tape and dolby was turned on, unit had several distortion.
SONY	KV2680R	Audio noise on right channel with cable, poor cable signal	My last visit to cathedral city i was shown a kv-2680r. whenon sap or both, the right channel was very noisy. i visited anotherdealer and found this to be the same on another kv-2680r. the area is oncable which is very bad. but the problem is this mo
SONY	SLHF900	Rainbow in edits	Rainbow or beat noise in video when in video insert functiononly. upon inspection found erase head not being turned on in thisfunction. -hq comments: this is normal in the sl-hf900. a strong and constantsignal such as color bars from a signal generato
SONY	CDP302	Frozen clv motor shaft	Clv motor would not turn, even though it was getting drive.
SONY	KV2670R	Loss of -33v resulting no channel del/add, replace l-105	Could not erase or add a channel. all channels had to besequenced thru in numerial order. found no neg -24v or -10v on pins 6and 7 of ic105 (memory) only when set was on. the -33v supply power supply waspresent when set was off.
SONY	TCV7	No ams function	When trying to put the unit into ams function, the headchassis did not stay in the ams position. it came down to the stop posi-tion and went into fwd or rvs mode.
SONY	STRVX450	Scrambled display then blanks out and mutes after 10 sec	Ic301 crashes. can be reset manually by grounding pin 33.you could preset a station (if you are quick), then the proper displayfreq. would show for a short while. one by one the segments of thedisplay would grow dim quickly, then become scrambled. aft
SONY	WM7	Substitute headphone jack does not fit	The jack substituted (p/n 1-507-787-11) is different from theoriginal jack (p/n 1-507-787-00). the jack substituted does not fit onthe main pc board because the new jack consists of 3 pins while the oldjack consists of 5 pins. -hq comments: part number
SONY	WMF65	Shut off	There is no part number for a reference #222 (pinch leverassy) in the service manual. -hq comments: the part number is x-3320-311-1. we will issue a s/b.
SONY	CPD1201	Color rgb monitors	Set shuts down at turn on.
SONY	CDP30	No audio output	No focus.
SONY	CDP30	Intermittent skipping	Unit skips intermittently, hot or cold. usually skips large segments of time. also, when ams-ing through long track, clv would unlock and relock several times, slowing search time between tracks.
SONY	WMF5	Motor vibration causing flutter	Excessive flutter (3 units).
SONY	STRAV460	No display, no sound; only standby led on	Ic301 could not be reset.
SONY	SLHFR70	Part number for ic301	Parts list problem. ic301 calls for cxp5016-009s, however,units have cxp5016-006s. kc has no -006s in stock. -hq comments: ic301 is a cxp5016. the -009s and -006s are interchange-able. these four digits indicate the oem code only.
SONY	TCFX77	Will not engage play solenoid - will not stay on	This unit had two problems. 1) unit would not engage playsolenoid. found d905/43v rectifier to be cold soldered. 2) would notstay in play. found ic507 defective at pin 11. this would not allowinput of the rotation detection signal to ic501/pin 32 sh
SONY	SLHF500	No tuner function	This unit would not light the channel numbers and no tunerfunctions were working. we found ic301/pin 16 to be about 2v. this wascaused by a leaky q305.
SONY	CDP302	Wrong part #	Page 65 of s/m shows ic151, should be ic101. p/n should be8-752-010-90, not 8-759-600-02. -hq comments: we will issue a s/b.
SONY	SLHF900	Need p/n for plastic bracket	Need part # for plastic bracket. -hq comments: unfortunately, this part is not available for replacement.it may be possible to get a spare part from a scrap unit from therefurbishing center in compton.