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My proscan tv will turn on for 5-6 minutes and then it will shut off and I have to keep Turning it on

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  • 21 Answers

That sounds like a bat tv power supply unfortunately

Posted on Mar 28, 2015

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Posted on Jan 02, 2017

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SOURCE: wont turn on

Take the back off of the TV and look at the power supply board (middle of the set). One or more electrolitic capacitors will have the tops swelled up. Replace them with the same value parts and you will be OK.

Posted on May 21, 2009

  • 42 Answers

SOURCE: 42" Phillips Plasma with pixel plus keeps turning off

I think you have to replace the power supply board.

Posted on Jul 25, 2009

  • 2 Answers

SOURCE: TV turns off on its own, have to keep turning it

We have placed a fan on TV and it has solved the problem. I guess it was over heating but for no obvious reason, other than we live in the tropics with no A/C in that room but lots of ventilation.

Posted on Jun 14, 2010

  • 8457 Answers

SOURCE: LG 50PG20. My TV keeps turning off by itself! We

This problems it is the causes by the tv power supply board.That the board,where the power a/c cord plug into it.Try website like Ebay.com to buy a whole refurbish power supply board for the replacement.

Posted on Nov 24, 2010

  • 608 Answers

SOURCE: ILO 32 in lcd keeps turning itself off

I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.

Hope this helps

Posted on Dec 09, 2010

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I try to turn my proscan tv on and the the power comes on but before anything the tv blinks a d it turns off immediately, any advice?


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Jan 25, 2016 | Proscan Televison & Video

1 Answer

I have a proscan plcd3717a. The tv keeps turning itself off. It stays on for 2 to 3 minutes then it shuts off. The sleep timer is turned off. Do you know what is wrong with the tv?


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and precious time.

Aug 16, 2014 | Televison & Video

1 Answer

Tv shut off while in use,and will turn back on


Try unplugging it and leaving it unplugged for about a minute. The plug it back in and try turning it on.

Nov 04, 2013 | Proscan 50" LCD HDTV PLCD5092A - CURTIS...

2 Answers

No screen proscan 42la30h


Lcd/Backlight! Main Problem On the led,lcd is the Bad lcd ribbon or Bord, Try turning off all the lights and Turning it on, then kneel down to the ground and see if u can see Channels changing when u click up/dwn or volume or even the Fuzzy look when theres no cable going to it. if u can see then its probably a bad board or chip.

Hope This Helps :)

Mar 08, 2012 | Proscan 42LA30H 42 in. LCD Television

2 Answers

Sony WEGA KV30HS420 shuts itself off


Sony KV-30HS420 TV shuts off, indicator light blinks 7 times

Sep 23, 2009 | Sony FD Trinitron WEGA KV-30HS420 30" 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

1 Answer

Tv shut off will not come back on


Look closely at the red LED below the screen whilst turning the tv on to see if it flashes green and immediately turns red again. I f it does the power supply is bad. Go to ebay to get one. Here is a link to get one. Others are available on ebay besides this one.

http://cgi.ebay.com/AC-Power-Adapter-LCD-F-12-Volt-5-Amp-12V-5A-DC-Supply_W0QQitemZ280306032459QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item280306032459&_trksid=p3286.c0.m14&_trkparms=72%3A1205%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318%7C301%3A1%7C293%3A1%7C294%3A50

Jan 17, 2009 | Proscan 19LA25Q 19 in. LCD Television

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