Question about Pioneer PDP-507XD 50 in. Plasma Television
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Posted on Jan 02, 2017
SOURCE: We cannot switch on our
First, remove the TV plug from the wall, fix it back in and try again. If that doesn't solve the problem, then it means your TV is having a power 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.
Posted on Apr 01, 2011
SOURCE: We have had problems switching
I've been running across a lot of plasma tvs where the power supplies are not bad, but the X & Y-sustain boards are faulty. My advice is to change those boards out as they are responcible for lighting the plasma gasses in the tv. You can attempt to replace one at a time (cost reasons), but it is recommended to changed both at once.
Hope this helps, please rate. :)
Posted on Apr 11, 2011
There is some over heating problem in you television. there will be two fans inside you television. if any of the fan get faulty then that section of you TV will get over heated and will shut off by itself preventing from further damages. Check the two fans. For that you have to open your TV.
Posted on Jun 07, 2011
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