Description
LG / Vizio 55.42T23.D02 (T320HVN01.1) LED Driver Board
Location: 00o5
This replacement LED driver board is designed for LED-backlit LG and Vizio televisions that use part number 55.42T23.D02. The LED driver controls the power and brightness of the backlight strips and is a common replacement when the TV powers on but the screen remains dark, dim, or flickering.
Part & Board Numbers
- Part Number: 55.42T23.D02
-
Board / Printed Numbers:
- T320HVN01.1
Always match the part number on your original board. Using the wrong LED driver can result in no backlight or improper operation.
Compatible TV Models
- LG 42LS5700-UA
- Vizio M420SL
- Other models that use 55.42T23.D02 or T320HVN01.1 may also be compatible.
Common Symptoms of a Bad LED Driver
- TV powers on but the screen is dark
- Very dim picture or faint image visible only with a flashlight
- Backlight flickers or fails to stay on
- Intermittent or uneven brightness
These symptoms can also come from failing LED strips or a power supply. Proper diagnosis is recommended.
Installation & Handling Notes
- Unplug the TV and allow several minutes for capacitors to discharge before opening it.
- Use anti-static precautions when handling electronic boards.
- Carefully reconnect all ribbon cables and harnesses; ensure they are fully seated.
- Avoid bending the board or applying excessive force to connectors.
Condition & Testing
- Professionally tested and confirmed fully functional.
- Guaranteed working replacement for the listed part numbers.
Warranty & Returns
- Warranty: 180-Day Warranty.
- Returns accepted for boards that are unmodified, undamaged, and installed properly.
- Please keep your original board until the repair is confirmed successful.
Shipping
- Ships from Brighton, TN.
- Securely packaged for safe transit.
- Expedited shipping options available at checkout.
If you need help confirming compatibility with your TV model, feel free to contact us before ordering.
We are here to help!
If you are having any trouble with locating the correct replacement, part number, or assistance with diagnosis please do not hesitate to reach out to us.
Support