Question about JVC AV-27980 27" TV

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Sound but no picture

Tv used to have a great picture but took 5 - 10 mins to warm up when first turned on. NOW only the sound works. NO picture at all.

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Replace C960 1000MF/35VOLT electrolytic cap
it only has 2 legs and easy to replace

Posted on Sep 04, 2009

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Posted on Jan 02, 2017

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3 Answers

Vizio has sound but no picture, 50 inch


I have the P50HDTV20A. When I turn mine on I get sound but no picture but if I leave it on for about 15-20 mins and then turn off then back on it will have picture and sound. It seems as though as something has to warm up so the picture will come on.

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I have a Hitachi 50GX49B, when I turn it on red light on panel comes on, but no picture or sound. 4 weeks ago picture would come on, but would break up and dissappear until warmed up, this took about 2-3...


if you bang on the TV or try kicking the very center bottom of the tv and it works or flickers you got a loose solder connection somewhere on the board. I got the same problem. When it warms up the solder, around what ever pin it might be, makes better contact. I am looking into the problem and will post my finding when i figure it out.

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TV Sony is working for 3 min., after screen is


Get a check of your picture tube. It may have been destroyed. If yes get it replaced. P.S: Older picture tubes are of great quality compared to new ones.

Apr 21, 2010 | Sony KV-35S45 35" TV

1 Answer

Horizontal lines in the picture.


Give it time to warm up like another 10 to 15 mins i find put a tv guide channel on the screen stays pretty much the same picture, then leave the TV on" i use a 4 hour rule if i dont view in 4 hours or more i will close tv power

Oct 07, 2009 | Mitsubishi VS-60705 60" Rear Projection...

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Sony kp-61hs10 tv, has sound but picture goes black after 3 min.


I just had the same problem. If your lucky it might be a free 5 minute fix. The five light flashes mean impropper current. I took the front grill off, then behind that is another black cover, I took that off and noticed the circuit boards COVERED in dust. I then took an air can duster and blew off all the dust... works like new. No more flashes and in an out picture. The collection of dust was interfereing with the electrical current.

Ben

Apr 15, 2009 | Sony KP-61HS10 61" Rear Projection...

1 Answer

Bad picture until tv warms up


Its bad surtace mount caps in the hyper board.I dont know which ones .Any ideas out there ?

Feb 24, 2008 | Toshiba 57HX81 57" Rear Projection...

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Samsung TXM2796HF Turns off after 45 min to 1 hr


Probably some component in the power supply. Look for a leaking or swollen capacitor. They can change value during operation unlike a diode or transistor that either works or does not work. U might even remove and test all caps in the PS area and replace any one that is questionable regarding its specs.

Aug 30, 2017 | Samsung TXM2796HF 27" TV

1 Answer

Distorted Picture Upon Startup


You have a bad capacitor in your power supply.

Dec 22, 2007 | Toshiba 57H81 57" Rear Projection...

1 Answer

No picture, but has great sound


Older television have components that are designed to last for about 10 years. slight movements can cause failures in old Capacitors and loosen connections. 
Might sound weird but seriously give the thing a good slap on the side after it has warmed up. if there is any effect AT ALL. take it to a repair man. if not your set may have simply bit the dust and now requires more servicing costs then a new set.

Nov 07, 2007 | Sony KV-36FS100 36" TV

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