TV Repair: Common Faults and Solutions.

Search:
Results: 87420

Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	CCDV110	S/m page 20 what is natrium lamps?	Page 20 list natrium lamps under difficult conditions for linear auto w.b. -hq comments: natrium is the same as sodium vapor lamps.
SONY	TCD5	Part not available - pause spring	Part is on national back order. pls assist in locating part. -hq comments: there are none in the usa. hopefully rpc (tokyo parts)will have some. since this is an older unit though, they may not.
SONY	KV25DXR	Dark picture - no color sync	Set had very dark picture and no color sync.
SONY	TAV5	Unit dead - no power	Unit was inoperative due to malfunction of power supply.static tests revealed q901 base to collector short, r901 open and bothdiodes in ib901 circuit block were shorted.
SONY	KV1500	White dots across top of screen	White dots across top of picture, looks like unblacked vitssignal. vert. height and lin. controls have correct range.
SONY	KV25DXR	Bar in middle of picture, replaced ic502 afc control	Ghost image overlays normal video on screen. horizontalblanking bar appears in middle of pix.
SONY	CDP302	Intermittent skipping	Unit would play normally for a time then start to skip. afterwarmup it would occasionally fail to read toc. i noticed that the efbalance drifted after warmup and that freezing the rf amp ic would cause asignificant change in dc centering of traverse wa
SONY	KPR36XBR	Broken picture control buttons, replaced front ass'y	Picture up/down buttons broken.
SONY	CDP302	Ams function does not work reliably	Noisy unreliable ams. no other problem noted.
SONY	SLHF450	Noise in playback	During playback noise getting into video resulting in horiz.clicks getting into pix.
SONY	KV1997R	Only power on & no power off, shorted c133	Only power on, could not power off. sleep light would notcome on at power on. no function. servicer had replaced ic103 and ic105still same problem. had v pulse pin 4, clock ok, reset ok, had noiseat h sync.
SONY	KPR4600	No channel memory,replaced q-308 and d-339	Above symptoms were intermittent when turning set on and off with power button. reset pulse was insufficient. found a leaky base to emitter q308 and leaky d339.
SONY	KV2091R	Low audio, change value of r842 to 300 ohms	Customers are complaining about the low volume delivered by this model at max setting.
SONY	KPR4600	Out of convergence at max brightner, replaced q-651	At max brightness, convergence would shift vertically, redabove and green below, with blue in the middle. found leaky q651 causingpoor regulation. b+ line about 5 volts lower.
SONY	SLHF750	Noise in playback picture	During the playback of self or prerecorded tapes, two or threebright spots, one line thick by 1/2 to 1 inch length on picture. theposition of spots changes left or right by turning the tracking knob.did not have any other unit to switch the boards for i
SONY	SPP100	Missing p/n - mouthpiece speaker	Need p/n for sp201 on page 28 and also for flex board. -hq comments: p/n for flex pcb is 1-618-500-11. it is reference #910.sp-201 is included in the front cabinet assthe cabinet is incorrect in the s/m. it should be x-3327-409-1.
SONY	TCK96R	No p/n for panel, cassette holder	Manual shows no part number for panel, cassette holder. -hq comments: the part number is 3-558-343-00.
SONY	VCT150K	P/n for lock lever - left side	Page 4 of s/m shows ref. no. 7 (2-391-606-00). however, thisp/n is for lock lever - right side. we need p/n of lock lever - left side(the threads are opposite ll-r). please advise. -hq comments: p/n is 2-392-808-01. a s/b will be issued shortly.
SONY	CCDV8AFU	Alignment method incorrect	On page 205 of s/m, adjustments in af section 1-34-3 areincorrect. test point for 5.5v adj. should be collector of q022, notemitter. vcf adj. is unclear. d001 cathode must be shorted to 1.7v line.also, in offset adj., it specifies shorting 1.7v line t
SONY	WM10RV	Gear grinding and no take up torque	This unit had a gear grinding noise and there was no take uptorque.