TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	XR6500	Rew/ff knob falls off	I have had three customers call that have this unit that com-plain that the ff/rew knob comes off when they pull it to perform ff/rew.
SONY	CDP701ES	Apc adjustment procedure	The attached fpr from 10/23/85 (not in computer) indicatesthat it would be issued on how to adjust the laser output but i cannotfind any such service bulletin or supplement etc. was this ever issued?what is the adjustment procedure? -hq comments: when
SONY	TAAX520	Right channel out	When the bass control is turned up, the right channel will cutout.
SONY	EVC3	No power and does not work	No power and does not work.
SONY	EVC3	Unit loads as power is applied	When power is applied unit loads automatically. no output signal from a-301 or q-302.
SONY	CCDV9	Shutdown dew indication and eject mode activation	Unit stayed on eject position and dew indication at all times.as soon as power was turned on, found the contact pins in connector cn-001of flexible ribbon fp-57 having poor pressure (preventing good contactwith terminals at cc7 mechanism board).
SONY	CFS903	Function button does not lock in position	The switch will not stay in position due to the elasticity ofthe rubber cover on the switch. the rubber is so stiff that the switchis forced back to its center position. -hq comments: tokyo fax (a900272): an improved rubber cover (ref #61)has been mad
SONY	CCDV11	Tg-1 arm falls out	Bushing that holds tg1 arm onto chassis falls out. thechassis that would include this bushing is not supplied (see included copyfrom service manual). i am forwarding the arm and bushing just the way itwas found in the unit. several ccd-v11s and ccd-tr
SONY	ITA850	No audio from speaker in speakerphone mode	When in speakerphone mode, there is no audio out of thespeaker. you can hear the dtmf tones when dialing on line.
SONY	CCDV9	Unit dead fuse blown	Unit would intermittently blow fuse f-902.
SONY	KV27HSR10	No picture sleep light on,replaced c-500	Set has high voltage. sleep light is on, but set has nopicture. found .7vpp on pin 31 of ic-301 (should be 2 volts). replacedic-500 and ic-301 still not working properly. found shorted c-500. -hq comments: when c-500 located on ic-500pin 1 shorts,
SONY	CCDTR5	Tg-1 arm falls out	Bushing that holds tg1 arm onto chassis falls out. thechassis that would include this bushing is not supplied (see included copyfrom service manual). i am forwarding the arm and bushing just the way itwas found in the unit. several ccd-tr5s and ccd-v1
SONY	CCDF35	No rewind, record or stop functions	No rewind, record (vtr), or stop functions.
SONY	KV32XBR70	S.r.s problem, install new srs module, see s/b 0045	Audio buzz when s.r.s is activated. customer is using anantenna not cable.
SONY	ITA850	Answer mode 1 does not work	Answer mode 1 does not operate.
SONY	ICF2010	Weak am	Very weak am reception. when you touch rod antenna with hand,reception came in normally.
SONY	CDP470	When disc is loaded, display reads no disc	When disc is loaded, display reads (no disc). replacedoptical pickup, which usually causes this symptom, but that did not work.
SONY	STRAV340	Speaker terminals	Need part number for speaker output terminals. -hq comments: the speakers terminals are listed under the terminalnumbers in the service manual on page 33. the number is tm-901,1-536-706-00.
SONY	STRAV910	Unit in protect	Unit in protect. amp o.k., drivers, pre-drivers, etc.
SONY	SLV555UC	Unit tries to unthread beyond normal stop point - jams tape	Unit may evidence various symptoms, including tape jamming, noplay, emergency shutdown, etc.