If your LG Smart TV is freezing on startup, failing to recognize HDMI devices, showing a black screen while sound continues to play, or not responding to your remote, the main board is often the source of the problem. Main board failure is one of the most common and fixable issues in modern LG televisions, and the LG EBT67523005 is one of the most important replacement parts for restoring your TV’s performance.
Would you rather jump straight into your repair? If so, watch our helpful YouTube video on How to Get Started below:
Why the LG EBT67523005 Main Board Matters
The EBT67523005 main board is a vital component used in several of LG’s popular Smart TV models. It manages system software, HDMI processing, video input, and communication between the panel and other circuit boards. When it malfunctions, you may notice persistent black screens, HDMI ports that fail to connect, or even frequent restarts. Replacing this part with a verified EBT67523005 can bring your TV back to life without investing in a new set.
Common Symptoms of a Failing LG Main Board
When the EBT67523005 begins to fail, you may see signs such as:
TV powers on but shows no picture, sometimes still producing sound.
HDMI ports fail to detect or hold a signal.
Remote control functions are delayed or nonresponsive.
Apps crash, freeze, or refuse to load.
The TV reboots randomly or becomes stuck on the LG logo.
TVpartsToday Tip: If your TV’s backlight works and you can still hear sound, your panel is probably fine, the main board is usually the culprit.
First Step: Try a Reset
Before removing parts, try a simple reset:
- Unplug your LG TV from the power outlet.
- Hold the physical power button on the TV for 30 seconds.
- Keep it unplugged for at least 60 seconds.
- Plug it back in and power it on.
If your TV continues to freeze, fail to recognize HDMI devices, or remain stuck on the logo, the EBT67523005 board may need to be replaced.
Main Board vs. T-Con vs. Power Supply
Not every symptom is caused by the main board, so knowing the differences helps avoid wasted time:
Black screen with sound: Could be main board or T-Con.
No HDMI or smart features working: Most often the main board.
No power at all: Check the power supply board first, especially if there is no standby light.
TVpartsToday Tip: Perform the flashlight test in a dark room. If faint images appear, the issue may be with the backlights. If no image appears but you still hear sound, start with the T-Con. If both are missing, the main board is usually to blame.
Finding the Right Part Number
With LG repairs, accuracy is everything. The EBT67523005 should be identified using the sticker or barcode on the board itself. Do not rely on numbers etched directly onto the board, as these are often internal manufacturing codes and not valid part numbers.
TVpartsToday Tip: Always match the exact part number. Even TVs with the same model number may use completely different main boards. If you’re unsure, send our team a clear picture of your board at info@tvpartstoday.com and we’ll confirm it for you.
Replacing the EBT67523005 Main Board
To replace your board safely, follow these steps:
- Disconnect the TV from power and place it face-down on a padded surface.
- Remove the screws from the back panel.
- Locate the EBT67523005 main board (you’ll find it near the HDMI and USB ports).
- Take reference photos of all cable connections.
- Disconnect each cable carefully and remove the mounting screws.
- Install the new board, reconnect the cables, and secure it in place.
- Reattach the back panel, power on the TV, and test.
TVpartsToday Tip: If you see unusual colors or missing menus after installation, adjust your TV’s picture settings, as sometimes configurations need to be reset after a board replacement.
Repair Instead of Replace
The LG EBT67523005 main board is one of the most frequently replaced parts in LG Smart TVs and is manageable for most DIY repair enthusiasts. If you’re facing black screens, nonresponsive HDMI ports, or random system crashes, replacing this board can often resolve the issue quickly and affordably.
Always confirm the exact part number before purchasing. If you’re not sure, reach out to TVpartsToday with photos, and our team will help ensure you get the right replacement the first time.
Need Help?
If you’re still unsure about the issue or need to replace a part, reach out to TVpartsToday. We can help you identify the exact cause of the problem and provide the right replacement part!
Would you rather watch a video? Check out our helpful Troubleshooting 101 playlist over on YouTube!
Would you rather chat with a seasoned repair expert? Head on over to our TVRepairHelp subReddit!
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