Question about Philips Magnavox 51MP392H Rear Projection Television

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Power issue power will cut on but no picture and no sound, what do i need to do to solve this issue?

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You will need a new deflection board for the DPTV 300 series Chassis. You can get new replacement boards at the following link.
http://servicemanuals.vstore.ca/

Posted on Sep 07, 2008

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Multiple issue,power light flashes


Sounds like first loose connection on circuit board. I would first look around the relay this is what clicks. Then also the low voltage transformers. These problems are always concerns when set is moved or bumped hard. Try this first. Or it could be a heated issue.

Nov 26, 2007 | Philips 50P8341 50" Rear Projection...

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Standby light flashes 10 times over and over, no picture or sound


Hello,
You need to check the output voltages of the power supply to see which one goes off. It may be due to short circuits some where,If otherwise,power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
Take care in solving the problem....

Aug 11, 2011 | Sony Grand WEGA KDP-57WS655 57" Rear...

1 Answer

Tv will stay on for a few seconds and then cuts off. When it is on, there is no picture, only sound.


Possibble that you will need to look into the set for possible power related issues. look for possible dry soldering in the main boards, possible power supply failure to the mainboard.
Look for shorted capacitors, drivers or faulty soldering joints in the convergencce IC/ failed IC.
Check voltage when set powers and on switch off. make a reading of the possible points for voltage difficiency.

Aug 29, 2010 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

1 Answer

My 50 inch rear projections picture cuts out after 2 hours and leaves only sound working, when you leave it off for a short time you can get 30 mins out of it. I had new bulbs fitted and made no...


looked up on this site and it seems it is a cooling issue the set is set to cut out if temperature reaches the set temp on micro-switch at back of unit, by-passing this switch solves problem and is helped if moving air is positioned at back of tv .

Dec 29, 2009 | Samsung SP50L7H 50" HDTV-Ready Television

2 Answers

Toshiba 46in DLP No Picture, but good sound.


Hi my name is Eric,
I hope I can help you with your issue ,
Sounds like a bad lamp assembly , search for one online by model# for between $100-$200
easy to install yourself
 
 
 
 
Hope this helps, if it has solved your issue please click accept
But if you have more questions please respond and I will reply asap
Thanks
Eric

Sep 09, 2009 | Toshiba 56HMX195 52" HDTV DLP Projection...

1 Answer

Rca tv will not power on. no sound no picture


you need to call jerome at tth electronics in canton,ohio
330-371-9896 he will solve it for you.

Mar 28, 2009 | RCA Projection Televisions

2 Answers

No picture or sound


From the symptoms you describe, it seems the high voltage flyback autotransformer has failed along with the horizontal amplifier (they are slaved to each other). The sound comes from the flyback unit.

Well, the only way to solve this is to get a technician take a look at the set, I'm afraid. Repairs could cost upto $100 or more, depending upon the number of components that need to be replaced,

Hope that helps!

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IrishDruid

May 20, 2008 | Mitsubishi VS-6043 60" Rear Projection...

5 Answers

No picture but has sound


My LG TV
switch on no picture but short period of sound then nothing

Jan 20, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Picture on TV


Your problem sounds like it could be a vertical sweep fault. Sounds like a vertical output IC or a capcitor in the sweep power supply or a waveshaper capacitor. All these faults, should only be checked and replaced by a pro tech, as there is a safety issue involved with the High voltage, and your going to need to know how to use the equipment to check these parts as in this case , you most likly wont be able to look and see whats wrong or what part is defective. Good Luck

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