Question about Proscan 26LB30QD 26 in. LCD HDTV

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Proscan lcd model 40LD45qc keeps turning itself off even when its not hot

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Posted on Jan 02, 2017

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SOURCE: Proscan 40" LCD-Screen Freezes

They actually state that you have to unplug it and replug it in to fix this problem in the owners manual so it's not just a isolated issue. I to have this problem daily now and this is the 2nd set after returning the first one due to same reason.

Posted on Oct 12, 2009

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SOURCE: My Proscan 40LD45QC cut off

I had a similar problem with my 42 in Philips LCD HDTV.

Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.

Here are some options for you.

1. Have it fixed by a professional $$$$$$$??????? (Is it under warranty?)

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. The entire board costs around $250 right now because they are in high demand right now. They can be found at but supplies are limited. I would definitely shop around though.

3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.

This may be your problem. If you determine that it might be.

I have a Tip/How TO tutorial on this site that may also help. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. Here is the Link: Fixing the Philips Turns/shuts off on its own problem. I'm working on uploading pictures to help guide people though the process as well. Let me know if I can do anything to help.

Hope this helps and if it does please rate it accordingly. Good luck.

Posted on Dec 14, 2010

  • 19396 Answers

SOURCE: tengo proscan 40ld45qc se apaga


La tele se queda en estandby porque el procesador central situado en la placa base de la tele (main digital controller pcb) encuentra un problema como una tension incorrecta o un corto circuito.

Esto es devido usualmente a componentes que necesitan ser reemplazados. La parte que falla mas amenudo en este modelo es la placa de alimentazion y los condensadores en esta placa.

Aqui piezas de repuesto para esta tele: 40LD45QC

Posted on Dec 30, 2010

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