crwdns2893792:0crwdne2893792:0 james ,
crwdns2893800:0crwdne2893800:0:
Turning on and off, is usually a sign of the power supply electrolytic capacitors having a high ESR. Testing ESR requires an actual ESR meter, but you can open it up and visually inspect them still. If the tops have dommed, they need replacing. This is usually the main cause of TV issues, but being dim could indicate a bad LCD driver board.
crwdns2892198:0crwdne2892198:0:
open