TV Repair: Common Faults and Solutions.

Search:
Results: 87426

Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	ACV55	No parts list in service manual	Need part number for the cable which corrects from the battery to the dc out. -hq comments: the part number for the dc out connector cord is 1-559-354-21. a parts list will be issued shortly.
SONY	CCDV1	No video in record	Would not record video. no video output from (vc-12) board.found iris ring defective.
SONY	ALL AUD	Remote for strav950 - d10 - kv25xbr	Do we have a single remote that will operate the above threeunits? -hq comments: the remote that will operate the above three units is thermu-70ii. a remote control receiver unit (p/n 1-463-815-11) is necessaryto make the d10 remote controllable.
SONY	KV2780R	Pix distorted, replace fbt 1-439-372-11	Picture distorted.
SONY	STRAV880	Tv reception loss on cable system with strav880 installed	When the receiver and tv set are hooked to the cable system,the tv sets picture would snow-out. when the receiver was removed, thetv would look and work normally.
SONY	SLHF300	Video/audio blank with pre-recorded tape	Video blanks out. found these symptoms:1. playback video/audio cut out (muted) with self-recorded tape or testtape.2. self-recording from this unit - playback good on shop sl-hf600.3. vd ctl and ctl pulses good.
SONY	CCDV5	No camera record	Record switch inoperative.
SONY	CCDV110	No drum servo	Drum would start up and immediately shut down. found c520shorted - (30Ω). voltages were not far from spec around problem area.
SONY	KV25XBR	Intermittent volume goes high	Trouble symptom was very intermittent, i.e., volume would govery high, brightness level would decrease about 2/3 and no display. in-spection reealed no dc voltage at ic-101 when problem occured. i foundrosin connection on l-113 which prevented dc from
SONY	SL300	Picture distortion	Strange distortion in picture. check rf waveform you can seeone head missing.
SONY	D77	Noise between songs with battery pack	Noise between songs only with battery pack.
SONY	D10	Fuse in negative side of dc input	Some d-10 units have a fuse in the negative side of dc input.it is not shown on any supplements. -hq comments: tokyo added the fuse to prevent the regulator transistors(q401 and q403) from burning. they are currently working on a supplement.
SONY	KV2726R	Audio buzz on cable, replace if block	Servicer reports the set has an audio buzz on cable channel 4only. they are unable to pickup ch 4 on an antenna.
SONY	AVU360	Cannot receive uhf stations	Dealer reports there is not any way to change from catv touhf. the service manual does not give any info and there is not aninstruction manual on premises.
SONY	CCDV8AFU	Noise in pix during playback	Once unit warmed up, noise bars would drift through pix. atfpilot at pin 1 of ic106 would disappear when problem was observed. hadcorrect wave form at q114 but not at the collector of q121. small spikeswere not present at this point.
SONY	KV2670R	Intermittently tuning drifted off, leaky c-202	Intermittently tuning would drift off. found that when we usea tuner sub that the aft pins out of vif chip would change. pin 6 of ic20would go approx. 5vdc. this was what was driving the tuner off station.pin 5 was 0v but pin 7 which should be 3.6vdc
SONY	STRVX350	No am or fm	No am or fm. display readout was ok and unit would scan butit would not lock in on signal. no variation of vc voltage was noted.vc voltage was short .3vdc and would not vary. dc voltage on pin 10, ic20was locked on 4.7vdc. i was able to locate defect
SONY	CDP7F	Cd will not play unless unit is upside down	Unit would play if upside down. in normal position you can hear clicking noise during focus search.
SONY	SLHF860D	Clock gaining 20 min/hr	Clock gaining 20 min/hr.
SONY	SLHF860D	Picture breakup during picture in picture mode	During picture in picture, inserted picture was broken into 5 horizontal lines across entire bottom of screen.