Question about Philips 37PF7320A 37 in. HD-Ready LCD Television

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42pf7321d/37 red led blinks 4 times.no picture or sound unplug and turn back on same thing tou can hear relay click off

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  • kyleroxtx Nov 07, 2008

    i have same problem

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Relay clicking is a power board failure --- part of the board still works to supply power to the flashing lights--- the lights are related to an error code while in protection mode

Posted on Feb 24, 2009

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1 Answer

I have a Philips 42pf5321d/37 that won't turn on.


send me a email sonny@tvcircuitboards.com and I can assist you with troubleshooting it to determine whats happening with the set.

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Philips 42 plasma flashing blinking 4 red lights 42PF7321D/37 screen does not come on need help thanks


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No picture on my philips 42PF7321D/37


Bad caps in the power supply must be replaced .

Jul 21, 2009 | Philips 42PF7320A 42 in. Plasma HDTV

1 Answer

Red led blinks 4 times.no picture or sound unplug and turn back on same thing tou can hear relay click off


Hi my name is Eric,
I hope I can help you with your issue ,
here is what it sounds like it might be:
It could be just a few bad capacitors on the power supply, if you want to attempt the repair yourself you can do a visual of the power board caps will appear swollen on top.
The ones you are looking for are located almost center bottom of the power board,Usually I can see them clearly with the back on simply shining a light into the back through the holes.
look at the photo I am uploading to see what a bulging cap looks like
With the back removed you will see a few circuit boards the upper one (ac cord runs to it through a small board) is the power supply, it has alot of capacitors on it (cylindrical standing straight up soldered in and marked on the sides with the positive/negative sides and MF and Volts values)
Philips uses 2200Mfd or 3300mfd at 35Volts rating capacitors, they cost about $1-$2 each
usually I replace two of them (or all the bulged on top ones) .
The power board and back unscrew with a torx bit and screwdriver size 10 and 15 , if you do not know how to desolder and resolder then do not attempt this as you may damage the TV more than fix it.
We do not recommend do it yourself, but depending on your knowledge and technical ability you may be able to.
You can replace the whole power supply, but Philips has a few versions in their sets and some so called replacements won't fit due to cable location (sockets) being in a different spot.
If there is a blinking red light on the TV count the blinks,if it still blinks after replacing the swollen cap this would indicate a bad buffer board ,
check the capacitors by looking for the swollen tops I hope thats all it is (usually is), if there are no bad caps post again so I can tell you buffer troubleshooting steps and locations.
here is Philips Phone # 1-888-744-5477 in case you need it for exact part #s
 
 
If you feel good about my solution please click accept.
If you have more questions post them
I will reply asap
Thanks
Eric

Jun 10, 2009 | Philips 37PF7320A 37 in. HD-Ready LCD...

1 Answer

Red Lights on the Power button blink and picture goes dark


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1 Answer

TV does not turn on, blinking red LED


Problem is a bad audio IC esp if your are reciving 11 blink code
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1 Answer

Philips 37PF9431D/37 No Picture


While I can't tell you what this particular code means I know from experience that power boards fail frequently commonly on those TVs. Do you hear a clicking of the power supply first on and then off after a few seconds?

There's a guy or a company on eBay that offers trade-in for faulty power supplys, you should check them out:
http://stores.shop.ebay.com/TechFetch

Search for 37'' Philips in the title or contact them to ask about it. Used to be $99 flat including return shipping.

Nov 20, 2008 | Televison & Video

1 Answer

Startup Problem with my 42pf7321d/37 Phillips plasma TV


I need to know how long do you have the tv?In the other word,approx. how many hours you have put into it?
Secondly,did you wall mounted the tv or setting it close the the area which there is not much room for the back of your tv to breath?
solutiondoct

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1 Answer

Philips 42pf7321d/37 blinking power board question


The probleis with one of the maina boards and trouble shooting would have to be done to see which board is bad.

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