Why doesn't it turn on?

Coby tv locate blown fuse Coby DVD765 Theater System

Looks like you might have issues with your screen it self the lights and all internal issues. You might have to take into a repair shop to get it done, a fuse might have been blown up. If you have warranty try to take it in and get it fixed.

Sounds like a Power Supply problem. This problem will probably require a live, in-person tech, especially if you have no hands-on experience. Do you know anyone with soldering experience or other electronics hands-on experience? If so, I could communicate a process to them. Tx, Petra

this problem is coming from the main board or back light inverter

If its two weeks old why are you here? Take it back to point of purchase and either have it fixed or replaced or get a refund.....

From the brand you likely are in UK but here all sets come with some kind of warranty==the problem sounds like a power supply issue but if you have a warranty and open the set it will void that warranty.

Died and went to monitor heaven. U can always check out the power supply. But other than that you may need to go shopping.

The electroliytic caps on the power supply module needs change, or ust replace the power supply.

[email protected]

I looked but no known phone number

how do i get the lock off my tv ?