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Repair service for Philips PLHL-T721A / 272217100569 power supply / inverter board for Philips 42'' LCD TVs

Coppell TV Repair LLC offers a repair service for failed power supply PLHL-T721A / 272217100569 used in a number of Philips LCD TVs

Coppell TV Repair LLC offers a REPAIR SERVICE for power supply board PLHL-T721A / 272217100569 / 2300KEG031A-F as shown on the picture and used in a number of 42'' LCD TVs.

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


To have us examine and possibly repair your board(s) you need to send them or bring them to us.

Start the repair service request through the "Initiate service request" button on the page. Repeat customers are advised to log-in and new customers will have to fill-in a short form with contact information needed for communication and invoicing.

An email with shipping instructions is automatically sent once you submit the form to the email address you provide; it is also shown on your screen.

Following the instructions you package your board(s) and attach the first page of the shipping instructions so that we make a link between the boards and the service request when we receive your package.

You then send the board to us. You pay for the shipping to a carrier of your choice and nothing to us at this point.

Presently we do not charge in advance, but only after inspecting and possibly servicing the board(s) we receive.

The price shown is for evaluation, repair, test and return within USA of the boards listed in the title or explicitly named in the listing, provided they meet our requirements upon arrival (see related section).

Boards returned abroad tend to have higher shipping cost that will increase total cost of service beyond the amount shown.

Once we receive the package and open it we inspect the board(s) sent.

If the board(s) do not meet our criteria we communicate the problem with you and offer options, the first of them being returning the board(s) back for sole cost of return S&H. Other options may include surcharge for board restoration, board replacement, change of pricing or warranty terms etc.
We may not give any options and simply reject to service a board that was damaged beyond repair (see example here).

If the board(s) pass our criteria we conduct test to determine functionality.

If test passes OK and board(s) appear in working order we communicate that and offer options, among which returning the board(s) without change; we invoice a testing fee and return S&H charge.

We test all boards that are being sent and for every board we test we assess testing fee as described.

Boards that test out bad are analyzed and we attempt to repair them.

If we succeed we send a payment request for the amount specified in the listing.

If we fail to repair the board(s) we send you an email with details and usually only request that you pay for the return shipping and nothing else.

Please make sure your TV has the same board before proceeding with this service or contact us if yours is different to see if we offer repair service for it.

There are different ways we've seen those boards fail and different failure symptoms.

Some of those symptoms are fairly easy and distinguishable, others can be confused with failures on other boards.

Here is a list of what we have seen along with a short rating of how reliable of an indication it is:

  • TV is totally dead, no response to either buttons or remote

    It is fairly likely that this is caused by a failed power supply board. It is also possible, however, that it may be due to a failed main board.

    Finding an open fuse on the power supply - e.g. F1 (next to the AC inlet connector) - or a visibly burned component such as U101 is a sure sign of a failure.

  • TV responds to power on command by clicking, but then clicks right back off

    This is very similar to the above situation where both power supply and another board - not necessarily the main - can be causing the problem.

    Observing bulging capacitors on the power supply can be a good indication the problem is there.

    This is actually true in all other cases - bulging capacitors are always something to be concerned about, even though they may sometimes NOT be the source of trouble in the individual case.

  • TV powers on, possibly with an image for a second, then the display gets dark, but the TV remains on.

    If configured on proper input/channel it produces sound.

    This is a fairly reliable indication the problem is in the power supply board.

    Often times there will be signs of burning around the transformer T701 at the top left side of the board, on the front and on the back; burning can sometimes be extensive and look not repairable, but often times it actually is.

Typical turnaround time is 2-3 business days.

This is the time it takes for a package that was received to move up the queue and get opened.

Once we open the package we usually have about 1 hour to get the case resolved or we will likely end up losing money on it.

Sometimes, depending on situation, we may leave opened box and make another try on the next day.

Note that it is not guaranteed that the queue will take exactly 2 or 3 days to process. Sometimes - especially after long holodays - it can be larger and take longer.

We do our best, but we have no efficient means of managing the work load on demand.


The board(s) we receive must be physically intact and must have not been tampered with or serviced before.

The advertised flat rate for repair service is only valid when the above conditions are met.

Exceptions are possible and often applied for minor repair attempts, but we reserve the sole right to judge if and when we would consider a repair minor.

If we receive board(s) that fails the above conditions we will contact the sender and usually offer two options: 1) returning the board(s) for the sole cost of the return shipping; or 2) continuing the repair service at a higher cost in case of success.

It is also possible, depending on the condition of the board, to eliminate the second possibility and just flat our reject having to service the board.

Subject to situation and availability we may also recommend replacement of the board, again at the higher than advertised price for repair.

In all cases you will have the option to receive your own board(s) back for the sole cost of the return shipping.

For other useful information check out the other articles at  or our main site .