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Can't turn on proscan 42LED55SA. blue light is on at the bottom of tv but i can't turn on manually or with remote. have tried unplugging and re-plugging but does not help. any suggestions?

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  • Expert
  • 127 Answers

Your Power supply needs troubleshooting.

Posted on Nov 02, 2012

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Posted on Jan 02, 2017

  • 8457 Answers

SOURCE: the red light in the bottom left corner keeps

Ur tv power supply board have dead componnents call capacitors.These capacitors are leaking gas,and it bulges up on it top or puff up on it top.These capacitors parts are dead,they must be replaced.U know basic electronic's and soldering?Take ur tv aparts,the board where the power cord plug into it.That ur power supply board,searches all around for these dead gas leakage capacitors,replaced them.Ur tv power LED light will be stable and the tv power will work again.Or tries websites like Shopjimmy.com,ebay.com to buy a whole reburbish power supply board for the replacement.

Posted on May 24, 2010

  • 6 Answers

SOURCE: Bought new Proscan 42LED55SA television. Need to

Call 1-888-977-6722, they should be able to provide the code you need.

Posted on May 13, 2010

  • 8457 Answers

SOURCE: We can't turn on the TV. We[ve tried the remote

The power LED indication light flashes or totally dead?The power supply board is dead.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacemrnt.

Posted on Oct 17, 2010

TV #1
  • 129 Answers

SOURCE: I have an Olevia 42"

The issue you are having is your power supply

Thank you

www.orlandolcd.com

Posted on Dec 07, 2010

paul4265
  • 592 Answers

SOURCE: TV will not turn on. Red flashing light, nothing

Hi.
This sounds like you are experiencing the same thing as thousands of other tv owners right now.
Your tv is suffering from " capacitor flu".

The capacitors that control voltage regulation, convergence, or the ones on the main board have failed.

This is not due to anything that you have done, it is because about 15 years ago, some companies chose to put profit ahead of quality.
There were about 20 electronic component manufacturers in the mid-1990's that mass manufactured capacitors, and they were done so with the wrong formula for capacitance gel. They used a formula which was later determined to be harmful to the capacitors, but instead of pulling those off of the market, they ignored the massive failures and left then out there on the market anyways.

All together, the companies made a combined 50,000,000 capacitors that were junk, and instead of lasting the 25-30 year design like they were supposed to, some of them are only lasting a few months to a few years, at best.

Now, that isn't to say that this means that your tv should be tossed in the trash, but if you take it to get it repaired at places like BestBuy, Fry's, or Staple's...you will want to get an estimate of repair costs before actually having it done.

The reason for this is because to get the proper capacitors put in your tv is a time consuming, and expensive repair.
You may find that the cost of repair is more expensive than the cost of replacing the tv, or you may find that it reasonably priced to get the repair.

That is why I recommend getting an estimate first.

This way, you will know ahead of time which way is the most economically feasible venture for you.

I hope this helps you understand what is going on with your tv, and that it gives you some insight as to how to remedy the situation.

Good luck to you, and have a good day.

Posted on May 31, 2011

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1 Answer

I have 42led55sa TV. It is not turning on. I am reading 11.94 vdc for the 12 vdc from the PS board to the main board. Is it low or still good? Appreciate your help. Thank you!


This voltage is normal. But, what about other voltages. have you checked them?
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.

Jul 31, 2014 | Proscan 42LED55SA 42 in. LCD TV

1 Answer

My proscan tv has the blue light but wont turn on


Most likely it's the power supply board that went out. (part of it still works is why you get the blue LED when you plug it in.)

If you decide to try to fix it yourself, BE CAREFUL! The power supply board has capacitors that can hold high voltages for many hours after the TV's been unplugged.The equivalent of sticking your finger in a light socket.

You'll need the part number off the power supply to get a replacement.

May 31, 2012 | Proscan 42LA45H 42 in. LCD TV

1 Answer

I have a 42" Proscan


It sounds more like a backlight problem to me. The first thing I would try before tearing the set apart is simply unplugging it for about five minutes and plug it back in. TV's do weird things sometimes and need to be reset. Odds are, if you have to open up the TV, there's not a whole lot you can do anyway. Check the backlight on signal and also see if your inverter is working. I would suspect that if you're strobing your backlight is probably dying. In that case all you can do is replace the panel; you could try finding a replacement backlight and installing it, but I wouldn't advise even trying this. Replacing backlights is quite a task if you're not familiar with televisions. Anyway, best of luck.

May 01, 2011 | Proscan 42LED55SA 42 in. LCD TV

1 Answer

Bought new Proscan 42LED55SA television. Need to


Call 1-888-977-6722, they should be able to provide the code you need.

May 12, 2010 | Proscan 32LA30Q Television

1 Answer

My flat screen tv dont turn on


Hey,

My TV had the same problem. From my experience try when turning the TV on changing the TV channel on the TV not the remote.

Jul 26, 2009 | Proscan PS27500 27" TV

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