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Repair service for a common failure in the HP PL5072N 50'' plasma TV


Coppell TV Repair offers a REPAIR SERVICE for a common failure in the LG 50PB4DT-UB 50'' plasma TV and caused by the board shown on the picture.

REPAIR SERVICE means that you have to send in a malfunctioning board which we will diagnose, service, test and return back to you.

Failure of this board usually results in a dark screen OR the TV may refuse to power on. Either of those two can also be caused by other factors, though, so do not jump into is only an indication, not a definite sign. The same may as well be caused by the other sustain board (the one on the RIGHT side of the TV when looking from the back).

When either of those boards is NOT working fine it often has its heat sinks NOT warming up notably after 4-5 minutes of work, which they would otherwise do.

Or, if the failure results in a shortage, then the TV would not power on and stay on with a defective board; it is easy to tell which one does that by simply disconnecting it from power and finding the TV reliably coming and and staying on.

Before sending in a board please make sure it is the same as the one shown on the picture.

Some TV manufacturers are known to release the same model with completely different internals and this service is for this particular board and not any other.

Processing time

Typical processing time for the repair is within two business days; if we have any probems that require more time (be it overload or technical problems) we will contact you with an update and request for more time.

We have a fairly high success ratio, but we still do not guarantee success; if we can't get the board to work, though, you will not need to pay.


Presently we do not charge in advance for repair services.

Instead, once the board(s) are received, tested, found to be defective, serviced and tested again to success we send a payment request to the customer.

If something along the process - such as unexpected difficulty or finding a board to be functional - arises we contact the customer via email and/or phone and disscuss options.

Minimal charge / diagnostic fee

If a board arrives and is determined to be functional we charge up to $25 for diagnostic fee.

For explanation of why do we do that please read this article.

Board requirements

We ask that the board arrives here in good physical condition and without traces of tampering. If someone (other than us, that is) has already attempted to service the board then please contact us with a description/pictures and do not directly place an order. We reserve the right to refuse service to boards that have signs of repair attempts.

If you have any questions do not hesitate to ask.