Problems diagnosing TV

Mike Stucka · 2007-12-06T03:02:34+00:00

Kind folks,I'm having a hard time trying to guess what's going wrong with our TV, though, to be honest, I haven't yet cracked the sucker open because I'm only home when the baby in the same room is trying to get to sleep. The TV is a 20-incher less than 15 years old, bought recently used.Problems:-- Picture moves vertically, sometimes drifting, sometimes jumping, generally moving downward-- Hugging the sides of the TV at the back seem to fix that problem-- Screen will turn to static and take sound with it; turning it off and then on again fixes it temporarily. It's almost sudden onset -- maybe a second or two of fuzziness, then a washout.-- Warning sign of vertical movement seems to be increasing fuzziness/static in display, though nothing too seriously. Black is no longer quite so black.-- The complete fuzzout seems to be driven by something else, like it has to be on for an hour and then it's constant.I thought this was a problem with the vertical hold circuitry, but the fuzzout with sound is completely throwing me for a loop. That makes me wonder if there's a heat/dust problem going on.Any advice would be greatly appreciated. I'm of the mind to try a vacuum, canned air and some electric parts cleaner, but I'd love some direction before I electrocute myself. =)Mike

Dec 06, 2007 20 Replies

Rate this thread:

William Sommerwerck 18 years ago

Ouch. Thanks.

This is a rhetorical comment... That sounds like poor design.

This is a rhetorical question... How is the service tech supposed to know this?

Vote

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required

Problems diagnosing TV

Related discussions

[SOLVED] Repair of Samsung 55" TV - backlight problem

Photodiode bootstrap phase rolloff

sanyo ds13630-02 Tv audio

Join the Discussion

Didn't find your answer?