Screen flashes for half sec and shuts down

[chevy56]

LG 50PK750
The screen only flashes for half sec and shuts down.Checked alot of diodes on power supply and checked good and no bulged caps.If I just knew what board to order.

[capkid]

Re: Screen flashes for half sec and shuts down

This might help: https://www.badcaps.net/forum/showthread.php?t=17809