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Toshiba 55LF621U21 & 55LF621C21 Power Supply / LED Backlight Strips Bundle

SKU:
sj-4708-K55WDC-A4113N01-COMBO
$69.82
$69.82
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180-Day Warranty
We highly recommend matching your part number. Learn more

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Includes replacement power supply board and brand new set of LED backlight strips. Compatible with all versions of model numbers listed.

Toshiba 55LF621U21 & 55LF621C21 Power Supply / LED Backlight Strips Bundle
Parts Included
  • Toshiba 4708-K55WDC-A4113N01
  • Toshiba 1T920000900

Known Models

BrandModelsVersions
Toshiba55LF621C21
55LF621U21
Warranty:
180-Day Warranty
Manufacturer Part Number:
Toshiba 1T920000900
Visible Number:
1T920000900
Visible Number:
20W055301
Visible Number:
9OC1640700
Visible Number:
4708-K55WDC-A4113N01
Visible Number:
K550WDC1
Manufacturer Part Number:
Toshiba 4708-K55WDC-A4113N01
Brands:
Toshiba
Models:
55LF621C21
Models:
55LF621U21

What is a power supply board?

Your TV’s power supply board takes the AC voltage from your outlet and converts it to various DC voltages needed to power everything in your TV.

Which symptoms does a power supply board fix in a TV?

•  If your TV doesn’t turn on, it could be the power supply board.

•  If you see very dim video or no video on the screen, but you know your TV has power and is on, then the power supply could be bad.

•  If your TV turns on and then shuts off quickly, it could be your power supply 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 power supply board?

It's easy! Once you match the part number on your power supply 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!

Includes replacement power supply board and brand new set of LED backlight strips. Compatible with all versions of model numbers listed.

Toshiba 55LF621U21 & 55LF621C21 Power Supply / LED Backlight Strips Bundle
Parts Included
  • Toshiba 4708-K55WDC-A4113N01
  • Toshiba 1T920000900

Known Models

BrandModelsVersions
Toshiba55LF621C21
55LF621U21

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!

29060 certified reviews
29.1K
4.5 star rating
Certified reviews
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5.0 star rating 09/06/22
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My Tv is like a brand new one now! I had to repair it my self; thanks to YouTube videos I was able too. It just took a long time o...
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Ronald U.
5.0 star rating 03/28/25
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5.0 star rating 03/28/25
Smooth
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5.0 star rating 03/26/25
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Sandy M.
5.0 star rating 03/28/25
This is a great company.
This is a great company. For what I paid for the part , I could afford 2-day shipping to get my dryer up and running that much soo...
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Mark S.
5.0 star rating 09/06/22
Samsung LED Strips
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My Tv is like a brand new one now! I had to repair it my self; thanks to YouTube videos I was able too. It just took a long time o...
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Ronald U.
5.0 star rating 03/28/25
Had difficulty figuring out how
Had difficulty figuring out how to pay by credit card (versus any of the cash apps being pushed), but they were very patient with ...
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Chris B.
5.0 star rating 03/19/25
The right parts I needed
Product image for Super Strong Suction Cup LCD LED TV Screen Panel Removal Tool (Set of 2)
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The right parts I needed and I got them fast thumbs up to the my
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Worked Perfectly
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Jeffrey H.
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