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If your LG M4210C-BA LCD TV is totally dead or if its power switches to on and then right back to off then you may need this power supply repair service


CoppellTVRepair offers a REPAIR SERVICE for the power supply board used in LG M4210C-BA LCD TV as shown on the picture.

REPAIR SERVICE means that you have to send in your malfunctioning board in order to get it serviced and returned to you.

Before proceeding with this repair please make sure your TV has the same board inside it and this listing pertains to you. It is not unusual for manufacturers to make significant internal changes and for the same model to be released with different internals.

How does it work

To start the procedure you will click the button on this page that says "Initiate service request", fill-in your data and receive an email with shipping instructions.

The email will ask you to print the page, which contains your data and send it to our address.

Upon receiving the board we will test it.

If we find it functional we will get back in touch with you and ask for more details or more boards and offer to return the board back with a minimal diagnostic fee (see further below).

If we find the board to be bad we will proceed with attempting to repair it.

If we are successful we will send a payment request for the advertised fixed amount.

If we can't fix it or if it costs too much to fix it we will get back and let you know about it. You will only be liable for the cost of returning the board back to you (if you want it ) - no parts and no labor will be charged.

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.

LG (331)