LG TV LED Driver & Inverter Boards
The LED Driver Board and Inverter Board are responsible for powering the backlight system inside a television. Without a functioning backlight system, the display panel cannot produce a visible image even when audio and motherboard functions are working normally.
LG televisions use different backlight technologies depending on model generation. Modern LG LED TVs typically use LED Driver Boards, while older LCD televisions may use CCFL Inverter Boards.
📺 LG TV Backlight Power Flow
Power Supply Board➡️LED Driver / Inverter Board➡️LED Backlights / CCFL Lamps➡️Display Panel
What Is A LG TV LED Driver Board?
The LED Driver Board regulates voltage and current supplied to the LED backlight strips. It ensures stable brightness and protects the LED backlight system from overload conditions. Inverter Boards perform a similar backlight power function in older LCD televisions with CCFL lamps.
Common Names
- LG LED Driver Board
- LG Backlight Driver Board
- LG LED Driver PCB
- LG LED Driver Module
- LG Inverter Board
- LG Backlight Power Board
Common Symptoms
🔊 Sound But No PictureTV audio works but screen remains dark.
⚡ Backlight FlashingBacklights blink repeatedly or fail to stay on.
🌙 Screen Goes DarkPicture appears briefly and then disappears.
💡 Dim DisplayBrightness becomes unusually low.
📺 Uneven BrightnessSections of the display appear darker than others.
🔁 Intermittent PicturePicture comes and goes randomly.
LED Driver Board vs Power Supply Board
⚡ Power Supply Board
- Converts AC power
- Supplies operating voltages to TV boards
- Powers the motherboard and other sections
- Supports the backlight power section
💡 LED Driver / Inverter Board
- Controls LED backlights or CCFL lamps
- Regulates backlight current
- Controls brightness levels
- Protects the backlight system
How To Match The Correct LG LED Driver & Inverter Board
Always match the original board number, TV model number and connector layout. Multiple LG TVs may use different LED Driver or Inverter Boards even when screen sizes are identical.
- LG TV model number
- LED Driver Board or Inverter Board number
- Connector layout and socket position
- Original board photo
- Backlight strip condition if available
- TV fault description such as sound but no picture or screen goes dark
Customers Also Search For
Need Help Finding A LG LED Driver or Inverter Board?
If you are not sure which LG LED Driver or Inverter Board is suitable, send us the following details before ordering:
- LG TV model number
- Original board photo
- Board number or sticker photo
- Connector side photo
- Backlight symptom photo or short video
Our team will help verify compatibility wherever possible.
Frequently Asked Questions
What does a LG LED Driver Board do?
It controls power supplied to LED backlight strips and regulates brightness.
Can a faulty LED Driver Board cause sound but no picture?
Yes. Sound but no picture is one of the common symptoms linked with LED Driver Board, LED backlight or backlight power circuit issues.
What is the difference between LED Driver Board and Inverter Board?
LED Driver Boards power LED backlight strips in LED TVs. Inverter Boards power CCFL lamps in older LCD TVs.
Are LG LED Driver Boards universal?
No. They are model-specific and should be matched using board number, connector layout and TV model number.
Can bad LED backlight strips damage the driver board?
In some cases faulty LED strips can place abnormal load on the LED Driver circuit. Technician diagnosis is recommended before replacement.
