20 Most Recent Philips 42PF9946 42 in. EDTV-Ready Plasma Television Questions & Answers

Best way to be sure is call Philips customer service with the model number to get the thread type and length of these--no two sets are the same here---usually most will be available at local hardware stores if Phillips does not sell them(that would be a bit more pricey and take time).

Philips 42PF9946... | Answered on Jun 15, 2012


your concern points to some adjustments of resolution from your set top box, as we all know all TV'S has fixed resolution doesnt matter what brand and the only way you can change that is through your source which in this set up is your Beyonwiz, please consult their manual and see if you can change the resolution in their video set up page.

Philips 42PF9946... | Answered on Feb 24, 2011

Hello, I came across several times in this type of malfunction, stems from primary circuit of the power supply unit. I solved it by replacing the 5W ceramic resistor. In another case I came across electrolytic capacitors that i had to replace in the same circle. I hope it was helpful!

Philips 42PF9946... | Answered on Feb 21, 2011

Problem will be in the Main Board its the board that has your cable connector and AV input Jacks on Call Encompass Parts Distribution ask if they have it in stock 1-800-638-3328

Philips 42PF9946... | Answered on Sep 23, 2010

Throw it away!!!!

Philips 42PF9946... | Answered on Sep 03, 2010

i am wondering the same thing. the tv is great but i dont want to change it but i want to get hd...
can anyone help

Philips 42PF9946... | Answered on Nov 28, 2009


Philips 42PF9946... | Answered on Nov 20, 2009

could it be that the sound is being directed through a optical output on the back of the telly?

Philips 42PF9946... | Answered on Jul 27, 2009

Solved it.

I called Philips and after some research (on their part) this was the solution.
  1. Make sure the PS3 is turned off
  2. Turn on the TV and put it onto the HD channel
  3. Hold the power button until you hear the second beep (roughly 5 secs)
  4. This brings up a screen saying 'a new HDMI device has been detected'
  5. Follow the prompts from here

Philips 42PF9946... | Answered on Mar 19, 2009

The display driver board may be at fault, or the screen backplane electronics may have a failure. The service tech will try the boards as suspected to service this type of fault.

If the backplane of the display is defective the service cost will not be acceptable.

Jerry G.

Philips 42PF9946... | Answered on Sep 13, 2008

Connect to the VGA port on the laptop, using a standard video cable.

Here is how VGA port looks like on your TV:


Note on some laptop you need to activate external video output by pressing a combination of keys, this will swap between laptop LCD video and external video.

Philips 42PF9946... | Answered on Sep 13, 2008

The plasma display screen is made of a matrix of elements connected to cables along the side and top. On your unit, some of these many, tiny connections are making contact intermittantly thus losing the elements in that area. These contacts are held in place with just pressure and if that is disturbed, you lose that line of elements. Try squeezing the cabinet of the TV on the outside at the top in the area of the loss and see if that makes a difference. May have to go inside and see if the contact assembly is disturbed or warped or something.

Philips 42PF9946... | Answered on Jan 01, 2008

you could open it and look to see if the fuse is blown

Philips 42PF9946... | Answered on Dec 06, 2007

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