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Make	Model	Symptom	Problem
SONY	WMF1	Incorrect part number	Part number listed in service manual is incorrect.
SONY	WM8	Incorrect part number	Part number listed for the p/b head in service manual isincorrect.
SONY	STRAV560	Missing part number	S/m does not list a part number for the front panel. -hq comments: part number for front panel is x-4906-723-1 for str-av560 x-4906-713-1 for str-av760
SONY	EVC8U	No eject	Unit would load ok. play tape for a few seconds then stop.ff or rew would run for a short time then stop. when eject was pushed thetape would unthread, but cassette compartment would not come up. the modeswitch was not running, it was staying in the l
SONY	ITA500	Low volume on ogm and icm signal to telephone line	Customer complains that ogm and icm volume is low and cannotbe heard if phone line quality is a little low. also, mentioned he isdissatisfied with seizing line with 1 1/2 rings. -hq comments: a modification is presently being investigated to increaseit
SONY	EVS700U	Intermittently take up after pause released	Item #371 on page 155 of s/m rubbing against a piece ofbad molding beneath it.
SONY	D7S	Disc will not spin	The unit would not spin the disc. this was caused by thethrust screw coming loose and allowing the rotor to bind. readjustmentresolved the problem. this is becoming a common problem with this unit.depending on how far out of adjustment the thrust scre
SONY	CCDV8	No rf output from modulator	All functions worked except there was no rf from the rfmodulator. audio and video lines worked fine.
SONY	KV1944R	Snowy pix, no sound, replaced ic2006	Has snowy picture, no sound, no display. power on/off ok,could not tune channels.
SONY	STRVX750	Shutdown	Unit would come on for a few seconds and shut off. this wasintermittently. found with signwave input that right on out had ringingand spike on output. found r783 had changed value 39Ω. changed, sameproblem.
SONY	CCDV8	Horizontal jitter in playback mode	Unit displayed horizontal jitter in playback mode.
SONY	CCDM8U	No eject	Capstan and drum rotate erratically during eject mode.
SONY	WM8	Head replacement	Above head replaced with p/n 8-829-373-40. difference inphysical size prevents head chassis from returning to stop position. itis difficult to load cassette or eject it. -hq comments: a service bulletin was issued concerning this problem(tape recorder
SONY	KV8100	Part failures	End user reports all of their units have had this capfail at least once. sometimes, the other parts in the centering circuithave failed also. -hq comments: to lessen the overcurrent stress on c519/2.2uf/160v, plsuse two 1uf/200v (p/n 1-130-157-00) capa
SONY	FD2A	Cx20159 dead	Unit came in with dead cx20159. tech replaced it and thiscauses q602 and associated components to burn up. -hq comments: since ic601, q602 are part of power supply circuit weshould first check its most suspect components before turning power on.next,
SONY	KV1952RS	Intermittently set would come on, replace x2001	Intermittently set would come on at full volume, and have nocontrol of volume, picture, channel change, and no indicator. sometimesthere would be no sound or control of functions. found x2001 intermittingcausing the microprocessor ic2001 to lock-up.
SONY	KX2501	No video, replaced q1903	Set powers up with h.v. and audio. no video. q1901 gets veryhot, b+115v. measure resistance l1505 on d board to gnd, found short.q1903 shorted.
SONY	XR780	Part no for spring 428	Need p/n for spring #428, other part has #428 also, needspring only. -hq comments: the p/n is 3-596-509-01 which is ref. no. 427.
SONY	CFS77	Missing part ref and illustration	Received this unit with transport apart and parts missing.see page 38 of s/m. need p/n of spring that pulls head deck down or onesuitable spring. -hq comments: ref # is 409 and p/n is 3-579-027-00.
SONY	SL2415	Loss of picture in cue/review under vibration	Unit had intermittent loss of picture in cue and review modes.while troubleshooting unit, i noticed that by tapping on dl-1, the pixwould come and go.