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Repair kit for Panasonic TC-P42S30 TC-P42ST30 SN board TNPA5349AB / TXNSN1PKUU / TNPA5349 causing 7 or 14 blinks error code

If your Panasonic TC-P42S30 or TC-P42ST30 fails to start and the red LED blinks 7 or 14 times this is likely the DIY repair kit you need!

In stock


Coppell TV Repair LLC offers you a repair kit for sustain board TNPA5349 used in Panasonic TC-P42S30 and Panasonic TC-P42ST30 plasma TVs.

The repair kit contains parts for at least TWO different failures we have seen on that board. One is indicated by 14 blinks error code by the TV's LED and can usually be diagnosed by a shortage on any or all of the following components: Q401,Q402,Q421,Q422.

The other is indicated by a 7 blinks error code and is caused by shortage in Q441 and D481.

In our experience you do NOT need to replace the screws for the board, but you DO need to make sure you reflow the solder on the back and top of the board where screws go as it may have gotten damaged and corrupt over time.


Failure symptoms

See above.

Kit contents

Brand new replacements for Q401,Q402,Q421,Q422, Q600, Q441 and D481; other components may be added over time if experience reveals necessity of including them.

We recommend replacing all components , but you can also selectively only replace those that test shorted on the board.

Difficulty level

Easy to medium. We recommend using hot air gun for desoldering of the old components and either the same and/or at least 50 watt soldering iron for soldering replacements in. No soldering aids are included in the kit.


Products will usually ship on the next business day after purchase is placed and paid. Unexpected delays may occur. If you do not receive a tracking number or message from us within 3 business days after purchasing please contact us.

When shipping method is specified during payment it is our first choice to utilize that method for shipping.
Yet sometimes it is not possible or may result in delays, e.g. a late Friday FedEx shipping of inexpensive and durable product may have a chance of being shipped in Friday than the following Monday; in such cases we reserve the right to substitute FedEx Ground with USPS Priority and, in some very rare cases, USPS First Class service. If shipping costs differ significantly you are in your right to contact and request price adjustment.

When shipping option for the order is "Free shipping" we will usually utilize cheapest available method.
See below for important disclaimer regarding the USPS First Class Mail packages.

    We do not advertise delivery time and do not take responsibility for delays to packages as long as tracking information proves they have been shipped in a timely manner by us.

    Be advised that the following delivery services are NOT insured per USPS policy:

    • Domestic: USPS First Class;
    • International: First-Class Package International™, Priority Mail International® Flat Rate Envelopes and Priority Mail International® Small Flat Rate Boxes; services to some countries may also not be covered, for details read the USPS article on the subject.

    What this means is that if you choose any of the above services as your delivery method you agree to hold us free of claims against loss of value should your package gets damaged or lost in the carrier system as long as the tracking information by the carrier shows the package was accepted by them and processed into their system.


    Coppell TV Repair LLC does not guarantee that this product is all that is needed to resolve the problems with your TV.

    Most of the repair kits we offer are based on first hand experience servicing boards at our repair facility. 

    Over time they may get expanded with our own experience or information from manufacturer service bulletins, customer feedback etc.

    Yet failure can be unique and there can not be guarantee that what has worked one, ten or even hundred times will also work the next one.

    Just as important, every repair involves about equal portion of quality of parts and quality of worksmanship and as we have no control over the worksmanship quality unless we are the ones performing it we would be unwise to provide warranty of the products utilized by that worksmanship.

    As such, no warranty is offered on this product once the components in it are soldered on a board.

    If you would like warranty please see if a REPAIR SERVICE is offered instead of a kit. Unless otherwise noted all our repair services do come with a standard warranty.