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Repair kit for PROSCAN 46LA45RQ power AYL400201 - shutting down, not powering on problem

If your PROSCAN 46LA45RQ shuts off immediately or shortly after being turned on chances are good it is because of the power supply board AYL400201 in it and you can use this simple kit to remedy the problem.
Availability: 33 in stock

In stock


This repair kit addresses a common failure in power supply board AOYUAN AYL400201 / AYL400202 used in PROSCAN 46LA45RQ and other LCD TVs.

Please read the listing carefully and in full to avoid possible confusion.

Before placing an order please ensure that the board in your TV is the same as the one in this listing! It is common for manufacturers to make significant modifications in TV contents without maing changes to the packaged model.

Coppell TV Repair will not be responsible for orders placed by mistake!

Failure symptoms

The most common failure symptom and the one tha this kit cures is usually manifested by the TV coming on for a few seconds and then shutting itself off.

Over time this can get to not ever showing backlight and directly shutting off.

Unfortunately the same symptoms can be observed with other failures, so we can not guarantee you that this kit will resolve the problem based on symptoms alone. If it does not you may consider sending to board to us for evaluation and repair or you can buy a working board from us and send yours back to us for a credit.

Visual inspection of the small blue capacitor C26 located on the outer side of one of the two large high voltage transformers may sometimes reveal swelling or even burning, but this is also not always the case.

Measurements with DMM are not guaranteed to help either as the problem may only show itself under load conditions (high voltage and high frequency).

Difficulty level

This is as easy a repair service as they come, but it still requires some basic soldering skills.

You will need an iron - almost any will do, some solder and a Philips screw driver so you can get to the board.

Warranties and returns

The repair kit for AYL400201 comes without warranties of any kind of success, explicit or implied.

We have repaired several PROSCAN 46LA45RQ with the same problem and are releasing the kit based on our knowledge and experience in hope it can be a quick and cost effective way to help others, but we can not and do not guarantee it will solve your problem.

Returns are NOT accepted.


Listed price includes shipping with USPS First Class mail anywhere within contintental USA or to anywhere where the same postage applies.

Please contact us if you want this shipped overseas.