VGH VGL DC Module with XL6009 for LCD Panel Repair

VGH VGL DC Module with XL6009 for LCD Panel Repair

The VGH VGL DC Module with XL6009 is a step-up DC-DC converter module designed to repair LCD panels, particularly those showing Y-line or color defects. It generates stable VGH and VGL voltages, commonly used to drive the TFT gates in displays. Adjustable output allows precise voltage tuning during panel repair.

Specifications:

• IC: XL6009 DC-DC Boost Converter

• Input Voltage: 5V – 35V

• Output Voltage (VGH/VGL): Adjustable up to ±30V

• Use Case: Repair of Y-line/color faults in LCD displays

• Typical Application: LCD panel voltage regeneration

• Dimensions: Compact module for service tools

• Features: High-efficiency step-up conversion, stable output

• Additional Info: Frequently used in TV and monitor repairs

Universal model, compatible with all TV models, screen types, and sizes. Fixes problems with integrated boards, main boards, T-CON boards, broken Y-line, color cast, coarse lines, dim display, etc.

Note: Repairing screens involves risk. No returns or exchanges. Do not buy if you mind!

Attention: As long as the original board does not show protection (error), it can be used. Otherwise, it's not suitable.

First, adjust the DC modified board voltage to match the original voltage (or slightly lower), then disconnect the original VGH and VGL power supply (make sure the wiring is correct, otherwise it may burn out), then connect the wires and fix the installation.

Cut off Y-supply (you can use insulation or remove the power supply resistors on the side board). Connect the faulty edge’s CKV pins together, or to ground, or apply voltage (typically 5–15V), then turn on the device and measure voltage.

Observe the display, and gradually adjust the VGH and VGL voltages down until the image returns to normal (usually VGH around 24–25V, VGL around -13 to -15V, except for special cases).

DC Universal Repair Board Usage Issues

Why use a DC board?
Many LCD screens show horizontal lines, mesh patterns, color distortions, dimness, or black screens after a Y-line break. These issues can be perfectly repaired or significantly improved by adjusting the VGH and VGL voltages.

Can the DC board guarantee a successful repair?
There is no guaranteed success in the repair industry. Success depends on the technician’s experience and the degree of Y-axis damage on the LCD panel. The DC board is merely a tool to adjust voltage, which may completely fix or improve the issue — but full restoration is not guaranteed.

What is the function of the DC Universal Repair Board?
Logic boards or integrated edge boards have power chips that generate VGH and VGL voltages. Since we can’t modify the original power chip voltage directly, we use an external DC module to solve this. Our DC board generates adjustable VGH and VGL voltages. Some models have fixed output for more stability, without variable resistors.

How to wire the DC Universal Repair Board?
All logic or edge boards use power chips to output VGH and VGL to the screen. The idea is to stop using the original power chip's VGH/VGL and disconnect it (usually by removing the 0-ohm resistor). Then the DC board supplies the screen with VGH/VGL voltages. Just connect 12V power and GND to the DC board, and connect VGH/VGL outputs to the screen.

What if the screen still doesn’t work well after connecting the DC board?
The DC board only changes voltages — you can try adjusting VGH up or down, or VGL up or down. If horizontal lines persist, the final method is to short the CK lines (usually 8 points: CK1–CK8) on the edge board to ground or to 15V. If that still doesn’t work, no further solution is available.