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Tv shuts off but when i open the covers to let air in it stays on

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Commen prob solid state equip. heat sen comp prob horiz circuit need tech or insall small fan .

Posted on Dec 01, 2008

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1 Answer

Goodmans tv flicking on and of

open the back cover then tried to dis connect the supply going to the inverter board for the screen back light whci may cause of shut off. let see if the indicator will stay to green and not turn to red.

May 08, 2013 | Televison & Video

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TV keeps shutting off.... won't stay on, any ideas?????

Check for bad capacitors in the power supply. Check for voltages. You can get a board at Encompas Parts.,

Nov 19, 2011 | RCA TruFlat 27F520T 27" TV

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My sony big screne started shutting itself off and wouldnt come back on for several hours. Then it would power up and standby flash 7 times and after a few mins the picture would be gone but the sound...

On your tv you have cooling fans on the back side you will need to check to make sure that they are running. Lay your tv on the bed take off back cover (it's not hard) and used some air-in-the- can to remove dust from the back! If you need a fan go to (1-866-925-PART

Jan 26, 2011 | Sony Televison & Video

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TV won't stay on - it shuts right off and it was working just fine.

A TV shutting off could be anything. How long does it stay on? Do you hear any odd sounds during turn on? Does the standby light blink a pattern after shutdown? More information would be needed to diagnose your problem any further. Let me know.


Jan 31, 2010 | RCA 20F420T 20" TV

1 Answer

The tv keeps shutting off just after minutes of turning it on. We can wait about 5-10 min before turning it on again but then it only stays on for a few minutes.

This sounds like a heat related problem, which could be a faulty chip or a cold (bad) solder joint on one of the PCBs (printed circuit boards). Due to the lethal voltages present inside a CRT type television, it is strongly advised to have this repaired by a qualified technician. however, if you or someone you know is technically inclined, you can try to fix this yourself. Cold solder joints can often be spotted by visible cracks in the solder joints. a through inspection of all the boards could easily identify the problem which can be resolved with a quick tap with a soldering iron and perhaps a little extra solder added to the joint. if that yields nothing, another method is heat/cold stressing the boards while the TV is running. With the TV on, spray small areas of the PCBs with cold spray (or a can of compressed air duster turned upside down) until the tv shuts off. then heat the last sprayed part with a hot air gun (or a hair dryer) until you can get the problem to repeat regularly. inspect the area causing the problem and you will probably find the culprit.

May 26, 2009 | RCA TruFlat 27F520T 27" TV

3 Answers

Sylvania 6419TC

My Sylvania T.V. turns on and then it turns off by itself. It only stays on for onr minute.

Aug 10, 2008 | Sylvania 6419TC 19" TV

38 Answers

Samsung DLP TV shuts off

I had the same problem and stumbled on the fix. It seems there is a factory defect. Open the lamp cover and you will probobly notice that the blue shut off switch on the left side is landing on top od the lamp cover. Reach down with a pencil or something and make sure the switch is under the tab on the lamp cover. My 50 DLP has not shut down since I set the switch properly. Free fix... try it.

Feb 14, 2008 | Samsung DLP HL-P5663W 56" TV

6 Answers

TV keeps turning off...

We have a Samsung HL-S6187W that's only a year and a half old that was having the same problem.... it would shut off for no reason... sometimes after being on for awhile but then sometimes it would shut off w/in a minute of it being on. Called Samsung support and they said to unplug and "reset" the T.V. and if that didn't happen they'd send a tech out (at a fairly steep service charge) and they would troubleshoot it. Talked to my audio/video guy that installed it all and he said it was probably the lamp that needed to be replaced (obviously for labor and parts charge). We really don't use the T.V. that much (have another flat screen 20' away in the kitchen we watch more often) so I seriously doubted it was the lamp.... plus it couldn't be turning off from over heating because sometimes it would turn off RIGHT after turning the set on.

After reading several suggestions here on Fixya I incorporated a few options to try and fix it myself and I am ecstatic to report that it's been over a month and a half, and we've watched it alot, and it's completely FIXED and doesn't turn off anymore --- and it didn't cost me a cent to fix!!! WOW!! Thanks to all the suggestions... this is a great website!!

Here's what I did:
1. Took off back lamp cover and vacuumed out the entire area (there wasn't ANY dust... but thought it couldn't hurt to clean it out anyway).
2. I disconnected the temperature sensor and cleaned off the contacts and plugged back in firmly.. (I think this is what the real solution was),
3. I then moved the "Auto Shut Off Switch" back and forth a little then made sure it was in the correct position when I replaced the lamp door cover (it's not hard to make sure it's positioned correctly).

Voila!! It's all fixed! This site has great pictures of the correct way to position the Auto Shut Off Switch and of the temp. sensor if you need it.

Jan 19, 2008 | Samsung DLP HL-P5663W 56" TV

1 Answer

TV shuts off

there are some capacitors in the power area that need to be replaced. open the set and do some checking there and I am sure you will find the problem. good luck

Sep 04, 2006 | Daewoo DTQ-26S1FC 25" TV

2 Answers

Problem with power. TV shuts off and on.

If the set switches ON when you shake it, or shake some wires inside (after opening the back cover) then in all likelihood you have a 'dry' or 'cold' solder.These are not easy to track, and so best left to a professional technician. call for a service tech.

Aug 07, 2006 | Sony FD Trinitron WEGA KV-32FS320 32" TV

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