jjh wrote:
Was working fine until recently, the back light seems to be shutting
off. After turning on the tv, the screen will light up for about 1-2
seconds then it will shut off and become black, but the tv remains on
and working otherwise. Shining a flashlight on the screen indicates
the picture is there. Audio is OK.
Anyone know if this is a systemic problem with this TV? If so, is
there a well-known fix?

Any other thoughts about what could be the root problem?
So for this model, where is a good place to get replacement parts?
(e.g. inverter board, lamps)

Thanks
-John

Not an LED type I assume. Seems to be a common fault. The back light electronic
usually consists of a number of identical circuits. The controller checks the
current of all of them.
If only one is out of range it will shut down.

Check the resistance of the transformers. Chances are one is out.
Be careful and make sure there is no high voltage left when working on the
inverter board.

Tony