Question about Panasonic TH-50PHW6B 50 in. Plasma Television

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ON SWITCH ONN THE PLASMA POWERS UP,BUT AS SOON AS A SIGNAL IS PUT IN IT SHOWS THE PICTURE FOR ABOUT 5sec & SWITCHES OFF & THE RED LED BLINKS TWICE.MODEL IS A TH-50PHW6

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: my panasonic plasma tv has some error! the red led

Panasonic sent a repairman out with the correct part after telling them about the seven blinks. The unit was out of warranty. They rock. Call 800-211-7262 or 800-524-1448 1

Posted on Oct 06, 2009

freelance-au
  • 131 Answers

SOURCE: my panasonic model #TH-50PX75U wont turn on, it

I would suspect faulty capacitors in your power supply, Take the back of and look on the power supply board for capacitors that have domed shaped tops, they may also have a brown liquid like substance leaking from them.

Replace these and this should cure your problem if it is capacitor related.

Posted on Mar 05, 2010

  • 380 Answers

SOURCE: panasonic model #TH-50PX75U wont turn on, it

Usually seven blinks indicates a Y sustain problem. Its either the Y sustain pcb and/or the buffer boards. I would highly recommend calling an authorized service center for this if you don't know what you are doing.

Posted on Mar 09, 2010

walesarumi
  • 6993 Answers

SOURCE: My Panasonic TH-50PZ800U plasma TV

Hello,

This is not video board problem. It is actually a power supply problem.

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board.

I do not think it needs replacement, rather some defective capacitors are causing this issue.
Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors).
After replacing these capacitor(capacitors) most likely the normal operation will be restored.

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Good luck.

Posted on Feb 02, 2011

  • 378 Answers

SOURCE: my panasonic model #TH-50PX75U wont

Unplug the power cord. Press and hold the power button for 30 seconds, repeat. Plug it back in and try to turn it on.
If this doesn't work, it would be time to call in a repair tech. Is the TV still under warranty? Extended warranty?

Posted on Apr 13, 2011

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