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Repair service for Vizio M550NV main board 3655-0102-0150 / 3655-0102-0395 causing totally dead , blinking endlessly or otherwise failing to start TV

Repair service for main board 3655-0102-0150 used in Vizio M550NV smart LED TV.

Coppell TV Repair LLC offers a REPAIR SERVICE for main board 3655-0102-0150 shown on the picture and used in Vizio M550NV smart LED TV.

REPAIR SERVICE means that you have to send us your malfunctioning board which we will attempt to repair, test and return back to you.

Note the board's PCB number is 0171-2272-3235 (could also be 0171-2272-3237), but same PCB is also used in other TV models and has different finishout product number (ABCD-WXYZ-0150 number); boards with different product numbers are usually NOT compatible with each other.


Advertised price is the maximum price you will pay and includes the return shipping costs within USA. Surcharge applies for international returns.

You start the process through the orange button on the page by filling a short form with your contact information and a brief description of the problem.

An email with shipping instructions is automatically sent once you submit the form to the email address you provide.

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

Once we receive the board and open the box we test it and act depending on what we find out.

If the board arrives in working order you will be charged with a a diagnostic fee of up to $25 plus the return shipping costs, i.e. less than the advertised repair cost.

If the board is bad then we attempt to repair it.

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

If we fail to 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.

Failure symptoms

Below is a list of symptoms we have seen when this board goes bad. Some are different manifestations of the same failure, others are different failures altogether.

This list is not explicit. There sure are failure symptoms not included in it.

None of the listed manifestations points uniquely to the main board either, let alone guarantee that the main board is the only one at fault.

It is merely what we started with - a list of failure symptoms we have observed and which came to have originated from the main board.

  • Front Vizio LED being solid yellow or just off and the TV not being responsive; (the later may also be due to a bad power supply board - check output voltages first!)

  • Front LED blinking yellow for extensive period of time without setting down; TV may or may not respond to an attempt to the power off button; most of the time it does not and it just keeps blinking;

  • TV starting up and showing the Vizio logo then either hanging there or restarting again

  • Loss of sound or HDMI inputs

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.