The main power supply regulator board has the fault. Check if any electrolytic capcitor/s has bursted out. Replace them if any. If this do not help you. repalce the board as card basis.
Replacing it as card basis is fine, rather than making 'surgery' to it.
SOURCE: Vizio Plasma 42HDTV - Power, No Video
Most likely the TV has a power supply related problem. It's possible that it maybe a bad capacitor or transformer on the power supply board. The most common thing to go out on flat panel TVs is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
But, I can't say it's 100% the problem because I can't actually look at the tv over the internet. I can only make guesses with the symptom.
You have a few choices:
1. If by chance the TV is still under warranty, go that route.
2. If you have some electronic experience, if you can find and purchase a Service Manual over the internet; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists.Usually, cost under $20. And most cases the new part cost less than $15.
3. Pay a TV shop to do the repairs. It maybe costly, but get an estimate of how much they will charge. That way you can decide if it worth repairing or replacing the whole TV.
I hope I shed some light on the subject for you.
SOURCE: loud pop and tv went off...
Here is a solution from the Pioneer web site:
http://www.pioneerelectronics.com/PUSA/Support/Important%3A+Updated+Information+Regarding+Free+Power+Supply+Replacement+for+Certain+Pioneer+Plasmas
Important: Updated Information Regarding Free Power Supply Replacement for Certain Pioneer Plasmas
Pioneer is continuing to offer a free, in-home/office power supply replacement for certain of its second and third generation plasma models listed below for customers who experience a problem with the original power supply. If a model is not listed below, no power supply replacement is needed and no further action needs to be taken.
If you own or use a plasma listed below, please call our toll free hotline at 1-800-421-1404 to arrange a time to have your plasma's power supply upgraded at your residence or office at no charge.
Plasma Models (15 listed):
The issue with the power supply in the plasmas listed above does not pose any health or safety risk. Pioneer has received reports that the power supply in the affected models may fail. In some cases, a loud popping sound can be heard when a power supply fails. After the power supply fails, the plasma is no longer operable.
Anyone with questions can call Pioneer's toll free hotline at 800-421-1404.
We apologize for any inconvenience.
SOURCE: Samsung PN50A550 Plasma TV started clicking on
hi i have replaced power controls boards in more than a few of these & this needs to b done by a expert .
Testimonial: "I figured it would be something along that line-Here in AK, repairs can be costly-but I'll get a pro. Thanks!"
SOURCE: Pioneer Elite. Loud popping sound and picture disappeared
Power supply board is dead.The board where the power a/c cord plug into it.Replace the power supply board.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
SOURCE: Samsung 58" plasma pop spark no picture
Hi
A common problem for these is bad capacitors in the power supply, Remove the back from your Tv and look at the power supply on the left hand side.
You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage.
Hope this helps
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