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  • Westinghouse 21004587 Main Board / PSU for DWM55F1G1 (Version TW-78951-R055B)

Westinghouse 21004587 Main Board / PSU for DWM55F1G1 (Version TW-78951-R055B)

SKU:
sj-21004587
Was
$37.70
(You save $13.71)
$23.99
Was
$37.70
(You save $13.71)
$23.99
180-Day Warranty
Ships same business day if ordered before 4pm CT!
We highly recommend matching your part number. Learn more
PLEASE NOTE: There are several different main boards for this model. We've found this board to be compatible with DWM55F1G1 model TVs with version number TW-78951-R055B. Please also confirm that 21004587 can be found on a sticker on the back of the original main board in your TV before ordering.


Known Models

BrandModelsVersions
WESTINGHOUSEDWM55F1G1TW-78951-R055B
Part Number:
21004587
Warranty:
180-Day Warranty
Board Number:
TP.MS3393.PC821| 21004587|B16020534|ST5461B05-2
Manufacturer Part Number 1:
Westinghouse 21004587
Part Type:
Main Board / Power Supply
Part Usage:
LED/LCD
Models:
DWM55F1G1
Brands:
westinghouse

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.

Make an Offer on this Item!

Please enter your email address and a fair price for this item. We will evaluate your offer within one business day and reply via email. Thanks!

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Please note that a ShopJimmy Extended Warranty can’t be included in an offer price or added to an accepted/countered offer. Thanks for your understanding.

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 several different main boards for this model. We've found this board to be compatible with DWM55F1G1 model TVs with version number TW-78951-R055B. Please also confirm that 21004587 can be found on a sticker on the back of the original main board in your TV before ordering.


Known Models

BrandModelsVersions
WESTINGHOUSEDWM55F1G1TW-78951-R055B

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!