Question about Philips 50PF9631D 50 in. HD-Ready Plasma Television

1 Answer

TV makes "expanding and contracting" sound and switches "off" automatically

TV is only 1 month old. During this time there has been the occassional contracting and expanding sound coming from the rear of the TV. Tonight the screen turned off (to black screen) with the green "on" indicator light still alight and then within five seconds the screen returned to the TV program I was watching. This happened five times in fairly quick succession. I thought it could be the TV overheating as the gas heater was on. But the room was only 22 degrees. After the heater was turned off the TV functioned correctly. If the heater is the problem what is going to happen in summertime when the ambient temperature reaches 30 and somtimes 40 degrees. Philips technical support have not heard of this as a common fault. I seem to always purchase the dud. Has anyone had the same problem?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 74 Answers
Re: TV makes "expanding and contracting" sound and...

Take it back to the store with the receipt and make a fuss so they give you a new one in a box. Do not let them have it repaired, it may never be right.

Posted on Mar 24, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

3 Answers

Picture too large for screen after 2 months of normal operation

Have you unplugged your tv for 1 hour and restart it mostly problem will be solved or gently tap on the sides of the tv to get out of the zoom like mode .
How old is your tv ?
Did you replace any component in your tv recently ?


Sep 25, 2008 | Samsung LN-S4692D 46 in. LCD HDTV

1 Answer

Tv went crack while watching. Picture and sound went out & red light flashing.Waited a min,turned off and back ok with picture and sound returning concerned if we should continue using or not?

As long as you can see and here the picture with no problems you should be fine. The tv's put it heat which make things expand and contract. Sometimes things creek and crack. I've had two tv's that do that. Don't hesitate to keep a fire extinguisher handy though along with some alarms.(houses should have these at all times anyways)

Mar 07, 2015 | Flat Panel Televisions

1 Answer

My 2month old 40E200 toshiba, has problems with the sound cutting out. Doesn't happen often, but when it does, problem last for about 10 minutes?

Hi This could be a dry solder joint, lack of solder during manufacter in combination with heat causes minute cracks in the solder around a component pin, heat can make the crack contract cutting off the circuit and when the joint cools enough it will expand and connect again until evetually it doesn't connect at all, so please contact your supplier to get it fixed under warranty.

Hope this helps.

(Don't forget the thumbs up if you found the advice helpful! - Thanks)

Feb 12, 2011 | Toshiba Flat Panel Televisions

3 Answers

I have a SONY Bravia tv and DISH network satelite. I have intermitent problems with the sound and Picture when I turn the set on (no volume) (pink picture). I must then turn it off and on again and it...

If they never gave you a written disclaimer about equipment that is incompatible with their service then tell them that your contract is not valid and you will not pay them. Because of your specific issue you are not actually receiving the service that they are getting your money for. You're paying full price just for the signal to be sent to you.
If they again refuse to cancel the service without penalty or alter it to be compatible with your TV then contact the Better Business Bureau and file a complaint.
Any trouble beyond that let me know I'll connect you with my brother who is a lawyer.

Mar 29, 2010 | Sony BRAVIA KDL-40S2000 40 in. LCD HDTV

1 Answer

My insignia tv - there is power - no screen - no

I hope you bought a service contract, definitely an electronic problem and you're going to have to have it fixed by a technician

Dec 08, 2009 | Insignia LCDTV26 26 in. Television

1 Answer

Have had tv for about 3 years all of a sudden the sound went out came bace 2 or 3 times and is now gone anything i can do?

Try removing the back and re-seating the connectors, or wiggle them . Over time the cheap connectors on boards tend to expand and contract not making good connection. Intermittant problems are a bear to track down.

Jul 25, 2009 | TruTech PLV16190 Television

1 Answer

Lines with occassional picture

This is a problem with the main board. This board does the signal processing and sound audio processing. The problem may just be some over expanded solder connections that have lost the ability to stay in contact with the board. It could also be a problem with some component failure. If this unit is still under warranty call the Insignia customer support at this telephone number 1-877-467-4289. Give them the model number of you television and they will tell you how to get service for it. The Insignia customer support website is Go to the customer support and ask them for help with your model of television.I hope this information helps you with your problem.

May 25, 2009 | Insignia IS-LCDTV32 32 in. Television

1 Answer

Ivo on off switch

How old is your TV? If its more than six months old it more than likely has a thermal problem. This results from the fact that all lcd and plazma tvs never entirely power down and after six months or so depending on the model if they are suddenly devoid of power for even one hour they may not turn back on.
The power boards have a tendency to warp slightly after a period of time and after an hour or so with no power they shrink back do to contraction. As stupid as this sounds if your moderately mechanicaly inclined then remove the back cover and stand being careful not to scratch the screen. Get an ordinary hair dryer and without removing th RF shield ( metal cover ) gently heat the power supply till its hot enough to be uncomfortable to the touch. then try the power again. This should work temporarily
and isolate the problem. Good luck.

Jan 15, 2008 | iLO 3200 32 in. LCD Television

Not finding what you are looking for?
Philips 50PF9631D 50 in. HD-Ready Plasma Television Logo

Related Topics:

55 people viewed this question

Ask a Question

Usually answered in minutes!

Top Philips Flat Panel Televisions Experts

The Knight
The Knight

Level 3 Expert

66685 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers


Level 3 Expert

4518 Answers

Are you a Philips Flat Panel Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides