That's frustrating! Let's troubleshoot:
1. Power cord: Ensure it's securely plugged into both the TV and the wall outlet.
2. Outlet: Try plugging another device into the outlet to rule out any issues.
3. Power button: Ensure it's functioning correctly (try using the remote or a different power button if available).
4. Surge protector: If using one, try plugging the TV directly into the wall outlet.
5. Circuit breaker: Check if the breaker has tripped or the fuse has blown.
6. TV's power settings: Ensure it's not set to "sleep" or "energy-saving" mode.
7. Unplug and plug back in: Sometimes, a simple power cycle can resolve the issue.
8. Check for loose connections: Verify all internal components (like the T-Con board) are securely connected.
9. Faulty power supply: If none of the above works, the power supply unit might be faulty (consider professional assistance).
If none of these steps work, it might be a more serious issue requiring professional repair or replacement.
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