Re: Proscan 40LD45Q 40" LCD TV Help Needed!

I have the Proscan 40LD45Q. My TV will turn on and work fine for about a minute, then the screen will go off. Power light stays on and the sound still works. I replaced the inverter card and get the same symptoms.
My power supply is AYL400203. Everywhere I look is out of stock of this power supply, so I would like to do a cap kit on it.
Any tips as to what might be going on, or any leads to a power supply vendor who has them would be most appreciated.
Thank you!