Sharp LC-52D85UN T-CON Board KF331 — main product image

Sharp

Sharp LC-52D85UN T-CON Board KF331

Name: Sharp LC-52D85UN T-CON Board KF331
Brand: Sharp

Replacement T-CON board for the Sharp LC-52D85UN to restore proper display signal processing.

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Overview

This listing provides a replacement T-CON (Timing Control) board for the Sharp LC-52D85UN 52-inch LCD television, identified by part number KF331 RUNTK4291TP 97B12T. The T-CON board is a critical component responsible for converting the video signal output from the TV's main board into the precise timing and voltage signals required to control individual pixels on the LCD panel. When this board fails, the result is often visible as horizontal or vertical lines, color banding, image distortion, or a completely blank screen despite the backlight still functioning.

This particular board is sold in used condition and has been tested to confirm excellent working order. For Sharp LC-52D85UN owners facing display issues that point to T-CON failure, replacing the board is a significantly more affordable repair compared to purchasing a new television. Installation involves opening the TV's rear panel, disconnecting the ribbon cables from the old T-CON board, and connecting the replacement. While the process is manageable for those with basic electronics repair experience, anyone unfamiliar with working inside televisions should consider having the replacement performed by a qualified technician.

Specifications

Brand

Sharp

Part Number

KF331 RUNTK4291TP 97B12T

Type

T-CON Board

Compatibility

Sharp LC-52D85UN

Condition

Used, Excellent Working Condition

Pros & Cons

👍 Pros

Direct replacement for the Sharp LC-52D85UN avoids the cost of replacing the entire television
Tested and confirmed in excellent working condition before shipping
Specific part number (KF331 RUNTK4291TP 97B12T) makes identification straightforward
Can resolve multiple display issues including lines, distortion, and signal loss

👎 Cons

Compatible only with the Sharp LC-52D85UN, not interchangeable with other TV models
Used part with no indication of remaining service life
Installation requires opening the TV and working with internal electronics
No mention of a warranty or return policy for the board

Frequently Asked Questions

What TV model is this T-CON board compatible with?

This board is specifically compatible with the Sharp LC-52D85UN television.

What symptoms indicate a failing T-CON board?

Common signs include vertical or horizontal lines across the screen, image distortion, color banding, a washed-out picture, or a screen that powers on with backlighting but shows no image.

What is the condition of this board?

It is a used board in excellent working condition that has been tested and verified to function properly.

What does a T-CON board do in a television?

The T-CON (Timing Control) board processes the video signal from the main board and converts it into the precise timing signals needed to drive the LCD panel's pixels, controlling what is displayed on screen.

How can I verify this is the correct replacement board for my TV?

Match the part number KF331 RUNTK4291TP 97B12T to the board currently installed in your Sharp LC-52D85UN. The part number is typically printed on the board itself.