Philips 47PFL7432D/37 TV no image, but soun and chance chanel ok

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• 2 Answers

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Posted on Jan 02, 2017

SOURCE: Philips flat screen tv will not power up.

Symptoms of a Defective or dying Power supplies on LCD TVs.
1. Light(s) on the front panel are behaving not normal example, blinking, amber color or
not steady, fainting, etc.
2. TV not turning ON properly.
3. TV turns OFF by itself.
4. Needs to be unplug to many times to make it work.
5. Humming or high pitch noise heard through speakers or at the back of the TV.

I repair these power supplies. Write to jah2mil@hotmail.com if you require further assistance.

Posted on Dec 20, 2008

SOURCE: Philips 42PF9956/37 Plasma TV - Looking for y sustain board

it isnt the Y-SUS board, it is the Power supply, iv fixed this exact problem twice in the last month, try turning the tv on, and when it turns green, unplug it real fast, while light is still green, after 15 seconds plug it back in, then hit the power button, if it dont come on, hit the power button again, this time, as soon as it turns off, hit the power button again to turn back on, sometimes you can trick the tv and it will turn on, at least i was able to do it, and once it comes on, it should work fine, untill you turn it off again.

Posted on Jan 10, 2009

SOURCE: I have a Philips 30PF9946D/37 no picture

what you have is a bad inverter transformer on the inverter board. I nashed my teeth on this problem for a long time because no diagram is avail. Here's the fix for you:

Remove the invertor board. Take an Ohm meter and measure the outer 4 legs of each transformer. Between pins 1 and 4 (side with the white dot near leg 1) you should read .3 ohms. This side is usually good. Between pins 5 and 8 you should read approx 1.8 to 1.9Kohms. ANYTHING above that is a defective transformer. I'm sorry I do not have the part number for this, I've just been using an old board from a set with a cracked panel. If I can find a part number I will try to post. You can try Encompass parts on the web, they may be able to supply part number and transformer with location number.

Rick
W2ICA

Posted on Mar 19, 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

Menandro de Leon

• 1138 Answers

SOURCE: my philips lcd tv has sound but no picture what is

change the backlight (cold cathode light) on your monitor.. If you are able to open the back of your lcd monitor carefully, the backlights are located at the upper and the lower part of the edge .. replace it with conventional cold cathode lights(protective tube was removed)... there are also instances that backlight was good but the ballast transformer is burnt. Replace the ballast. Its very cheap to replace that.

Posted on May 18, 2010