Question about Philips 42PFL5332D 42 in. LCD Television

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When i turn on tv red light comes on but no sound or picture?i

I was told the power supply was gone, how much will it cost to have repaired?

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If the power/standby light comes on, means, the power supply regulator board is working. The fault must be due to its main board. If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. Checking method of power supply board is given.

Posted on Jan 04, 2014

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Posted on Jan 02, 2017

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SOURCE: Phillips Plasma - Model #42PF7320A/37 - 3 flashing red lights

it sounds like you could have a signal board problem they are pretty expensive but there is a web site that sells refurbed parts

Posted on Nov 19, 2008

dsacco86
  • 1077 Answers

SOURCE: TV won't come on - get a blinking red light instead

Most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you the flashing red light codes, circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

Posted on Jul 01, 2009

SOURCE: I Have a Philips LCD TV model#30PF9946D/37.

Oh yeah, you can most certainly change the power supply by yourself.

It's easy to locate - just follow the power cable - and easy to replace.

Only make sure to let it discharge before you operate it. 10-15 minutes disconnected from power should do.

However, there's no guarantee that the problem is in the power board.

There is a very good chance it is, in fact, not there.

There's another board which commonly fails on many plasma TVs and the effect is exactly as you describe. It's called Y-Sustain board and you can tell which one it is by looking at the side of your TV and seeing which large board has manny plastic connections that enter the display on the side.

That board often has one or two fuses on it - I'd check those first.

Posted on Nov 03, 2009

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