Question about Philips Magnavox 42MF521D/37 Television

1 Answer

42pf9956/37 philps plasma

Comes on with pix and sound for 3or 4 seconds hear relay click light goes red then shuts down and light goes out

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 4 Answers
Re: 42pf9956/37 philps plasma

I don't know why but this got my TV on.
I took off the back cover and found the source of the clicking.
Two blue plastic rectangular relays in the exact middle.
When I pushed the power button, I felt the top relay click, and I saw a flash from the bottom one. (they are right next to each other)
I took a hair dryer and placed it over the two relays for about 1 minute and tried the power.
It clicked only 4 times and then came on!!!!!!!!!
For some reason heat helps the relay.
If anyone is a tech and can explain this, please do.
Good luck!!!!
My tv is on and it didn't cost me anything.
I just can't turn it off now!!!

Posted on Apr 11, 2008

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

What caused it to shut down?

Probably abrupt power supply failure

Feb 22, 2016 | LG Flat Panel Televisions

1 Answer

Tc-p42x3 panasonic problems

It sounds that there is some loose contact with any of the IC heatsinks inside the circuit board. Your TV need a through checkup. It is really a skilled work to do with Plasma displays, as they adopts the latest technology. Even an experienced service tech: too will feel a little bit difficult to reach the exact fault point. In my view, it will be better to contact any service technician in your TVs case. If you do wish to get some ideas about the working of Plasma displays, check this link. If you are not familiar with electronics, do not attempt to repair. Whether you suffer fatal electrical shock! Instead, contact the nearest service center.

Jan 28, 2013 | Panasonic "Viera TC-P42X3 42"" Plasma TV -...

1 Answer

My hitachi plasma tv model: p55t551 every time i

turn tv on the red power light comes on then goes off again

Jun 27, 2010 | Flat Panel Televisions

3 Answers

Pioneer pdp 502mx goes to standby no picture after power on

Contact Pioneer at 1-800-421-1404 about getting an in-home power supply replacement. This is a known issue with some plasma displays. Some of you would experience a loud pop and then the power supply fails. You get a red light below the ON button, when you press on, the red light will turn green for a second and then back to red. The plasma display will not turn on after the power supply fails. Call Pioneer at 1-800-421-1404.
Brought to you by and

May 23, 2008 | Pioneer PureVision PDP-502 50 in. Plasma...

5 Answers

Philips 42 in. Plasma shut down

did u cheak the input cables does it do it on dvd input as well as others ?

Feb 01, 2008 | Philips 42PF7320A 42 in. Plasma HDTV

1 Answer

Relays click. That's about it

try unhooking the wires coming off the power board you should be able to unhook every thing except the switch wire and se plug if the green lights stay on and the red don't come on then you have something loading down your power supply if it still shuts down you need a new power supply

Nov 20, 2007 | SVA-USA HD4208TIIIBU 42 in. HD-Ready...

1 Answer

Philips 42pf9956/37

when the light goes red it should be blinking a two digit code and repeat itself continuosly. slow blinks are the first digit and fast blinks are the second digit

Sep 25, 2007 | Philips 42FD9954 42 in. Plasma HDTV

Not finding what you are looking for?
Philips Magnavox 42MF521D/37 Television Logo

273 people viewed this question

Ask a Question

Usually answered in minutes!

Top Philips Flat Panel Televisions Experts

The Knight
The Knight

Level 3 Expert

66476 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