TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	TCWR720	Rattling noise from tape mechanism - will not go into play	Rattling noise caused by fwd flywheel unable to drive cam gear(ref. no. 160) because cam gear will not rotate freely once disengaged bythe slider brake plate (ref. no. 159). the cam gear is kept from rotatingby the shaft on assembly (ref. no. hrpe101).
SONY	TCR503	Unit inoperative	Unit inoperative. no power to display nor to drive system.no 5.8 volt supply.
SONY	CCDG5	Part number for the cable on the gp-10 grip	We need the part number for the 5-pin male cable that isattached to the gp-10 grip as shown in the diagram. -hq comments: japan informs us that this is not stocked as a repairpart, and as such is unavailable.
SONY	CFD64	Distorted cd audio - other audio functions are ok	Distorted cd audio output other audio functions of unit areok.
SONY	STRAV320	Chattering relay in power supply - unit will not operate	Chattering ry-901 power supply relay cannot switch on or off -no display.
SONY	SLHF450	Intermittent video	If unit was tapped, the video would cut out but the audio wasnormal. the problem was isolated to the va-14 board. by flexing theboard, the problem could be easily duplicated.
SONY	CFS710	Unit eats tapes.	Unit eats tapes. i noticed that the washer ref 311 p/n3-701-438-01 does not fit properly on the flywheel (ref312). the washer'sinside diameter is too wide (2.5 mm). consequently, the flywheel does notstay in position and drifts.
SONY	MDP700	Part numbers for servo checker cables	There are no part numbers available for the ld and cd checkercables in the service manuals. -hq comments: part number for the ld cable is j-6080-880-a. part numberfor the cd checker cable is j-6080-922-a. both parts are available in kc.the old servo c
SONY	MDP200	Part numbers for servo checker cables	There are no part numbers for the ld and cd checker cables inthe service manual. -hq comments: part number for the ld cable is j-6080-880-a. part numberfor the cd checker cable is j-6080-922-a. both parts are available in kc.the jigs are no longer nee
SONY	KV32XBR15	Intermittent horizontal shift to right, re-soldered ic-582	Intermittent picture is shifted to the right - no color anddark. when you turn the set on and off, unit will work ok.
SONY	KV2090R	Raster with distorted sound, resolder a-1 connector	Distorted sound, no picture, no snow plain raster only.
SONY	CCDV9	Dead unit	Unit dead and no display. when lithium battery is taken out,display comes on. when its put back in, the unit dies again.
SONY	CDX7580	Illumination weak/won't switch colors	Display won't switch color or display is dim.
SONY	SLV575UC	Timer record lock up	Customer sets up timer record program 1 to start at (forexample) 8:00 a.m. switch-off at 8:30 a.m. program 2 starts 9:00 a.m.switch-off 9:30 a.m. at 8:00 a.m. unit starts to record, but powerfailure occurs at 8:10 a.m. power returns at 8:40 a.m. cus
SONY	CDPC305	Static in output when unit has warmed up	Static in output which increases as the unit (ic) heats up.this is the second encounter of this type in recent weeks.
SONY	ACV30	Availability of ch board	Reference fpr #lo244. the disclaimer no authorizationrequired has not yet been attached to part no. a-4925-307-a in thecomputer so our parts distributors are still rejecting orders for thispart. -hq comments: all semiconductors are now available for the
SONY	D4	Defective part - upper lid assembly	When replacing upper lid assembly, i found the magnet in thechuck plate assembly on the wrong side. there was no magnetic chucking tospindle motor.
SONY	SPP150	No activation during battery save	Unit works in normal mode but will not activate channelscanning in batt save mode.
SONY	SPP110	No activation during battery save	Unit works in normal mode but will not activate channelscanning in batt save mode.
SONY	SPP300	Handset does not communicate with base	Cordless handset had low b+ to pll. only 1.2 volts on q-210collector.