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  • TCL 08-CS55TML-LC403AA V2 Main Board for 55S421 (SEE NOTE) V2

TCL 08-CS55TML-LC403AA V2 Main Board for 55S421 (SEE NOTE) V2

SKU:
sj-08-CS55TML-LC403AA V2
Was
$39.00
(You save $10.21)
$28.79
Was
$39.00
(You save $10.21)
$28.79
180-Day Warranty
Ships same business day if ordered before 4pm CT!
We highly recommend matching your part number. Learn more

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TCL 55S421 Complete TV Repair Parts Kit - Version 5

TCL 55S421 Complete TV Repair Parts Kit - Version 5

SKU: sj-KIT-55S421-K5

Was
$49.99
$35.99
Ships same business day if ordered before 4pm CT!
69 Available
PLEASE NOTE: There are multiple different main boards for this model. Please match this board to the original in you TV before ordering.

Known Models

BrandModelsVersions
TCL55S421
Important:
PLEASE NOTE: There are multiple different main boards for this model. Please match this board to the original in you TV before ordering.
Part Number:
08-CS55TML-LC403AA V2
Warranty:
180-Day Warranty
Board Number:
08-CS55TML-LC403AA| 08-MS22R3-MAA2HG|08-MS22R02-MA200AA
Manufacturer Part Number 1:
TCL 08-CS55TML-LC403AA V2
Part Type:
Main Board
Part Usage:
LED/LCD
Brands:
tcl
Models:
55S421

Videos

What is a main board?

The main board is basically the “brains” of your TV and controls everything, from the audio to video streams. All of the user data and settings are also stored on the main board.

Which symptoms does a main board fix in a TV?

•  If your TV doesn’t turn on, it could be the main board. If your TV turns on but has no video and/or no audio, it could also be the main board.

•  If one HDMI input works but others don’t work, it could be the main board.

*These are helpful tips to get you started and don’t represent accurate diagnoses for every TV model and failure. If you’re unsure of your diagnosis, we recommend checking out our YouTube channel or reaching out to a local TV technician for assistance.

How easy is it to replace a main board?

It's easy! Once you match the part number on your main board with the part number listed on this page to confirm compatibility, you’ll just need a screwdriver and the ability to remove the back of your TV and replace the board.

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Need more quantity?

Please add your email and the quantity you need below. While we can’t guarantee that we’ll be able to get our hands on this amount, we’ll do our best and reply to you as soon as we can. Thanks!

We recommend matching the part number on your original part with the part number listed on this page to ensure compatibility.

While matching your model number is a great start, many models use variations of each part and they're not always interchangeable.

We include brief instructions in red text on some listings (also displayed below without the red font). Please look for these instructions to confirm any important info that you'll need to identify on your original part. Additionally, we highlight the part number in our photos.

Please don't hesitate to contact us with any questions. We're here to help!

PLEASE NOTE: There are multiple different main boards for this model. Please match this board to the original in you TV before ordering.

Known Models

BrandModelsVersions
TCL55S421

This item is available for pre-order and will ship by the date listed on this page.

Please order this item separately from other items you need. If you add this item to an order with other items, the order won’t ship until the date listed on this page.

Please contact us with any questions. Thanks!