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Vizio 6871L-3021D (6870C-0401C) T-Con Board M3D550KDE

SKU:
sj-6871L-3021D
$31.20
(You save $11.21)
$19.99
$31.20
(You save $11.21)
$19.99
180-Day Warranty
Ships same business day if ordered before 4pm CT!
We highly recommend matching your part number. Learn more
Partial part number (3021D) can be found stamped on the board.

IMPORTANT: Horizontal lines on the screen are virtually NEVER caused by a bad T-con board. Horizontal lines indicate a defective LCD panel (screen).



Known Models

BrandModelsVersions
VIZIOM3D550KDELTYPMLGN
Part Number:
6871L-3021D
Warranty:
180-Day Warranty
Board Manufacturer:
LG
Board Number:
6870C-0401C
Part Type:
T-Con
Part Usage:
LED/LCD
TV Panel Manufacturer:
LG
TV Sizes:
55
Models:
M3D550KDE
Additional Substitutes:
6871L-2852F 6871L-2753E 6871L-2823C 75030691 6871L-2823F 6871L-2823 6871L-2966B 6871L-2967B
Panel Number:
LC550EUN-SEF1
Brands:
vizio

Videos

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.

What is a T-con board?

A T-con board — short for “timing control board” or “timing controller” — is found in LED and LCD TVs. This board converts the video signal from the main board and sends it directly to the screen to display the signal in the correct order and at the correct spot on the screen.

Which symptoms does a T-con board fix in a TV?

•  If your TV has no video, then the T-con board could be bad.

•  If your TV only has video on a fourth or half of the screen, then the T-con board could be bad.

*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 T-con board?

It's easy! Once you match the part number on your T-con 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.