Apologies if there's a post somewhere about this, but I didn't see the exact issue.
My TV turns on; there is sound but no picture. After a few seconds, the TV shuts off and restarts (again no picture, but sound). This process repeats until I power it down.
I have heard it's the lamp, but could be the ballast. If I carefully remove the lamp, would I be able to tell if the lamp is burnt and needs replacing?
If it is not the lamp, how do I test the ballast?
Many thanks in advance for any help you can provide.