I have never heard of that brand TV before, but your probably have leaking/damaged capacitors and the whine your hearing is probably the coils being unable to power up completely.
Poor quality capacitors is a common occurrence in value brand electronics, and while these can be repaired or replaced at home, I highly recommend against it unless you are very familiar with capacitors and electronic repairs.
The coils and capacitors can store 20k-30k volts, enough to kill you quite easily for weeks without being plugged in.
Unless your TV holds a current value of $350 or greater, you are better off replacing it than calling a technician to perform repairs. A capacitor repair usually costs around $250 from a TV repair shop.
Yeah, that's what i figured it was. Thanks a lot. The TV was old anyway, so I found a Samsung for around $55 for a 20 minutes' drive, very worth it in my opinion.