I recently re-secured some lenses on this TV and on re-assembly it won’t start up but cycles through a boot loop. All the back lights come on, then dim and then into standby and repeat. I’ve checked voltages on the power board and all looks as expected, all LEDs come on and stay on with the power board disconnected from the main board. Any other scenario gives me the loop, that is I’ve tried disconnecting everything else in all combinations. I’ve also swapped out the main board for a replacement. Any ideas?
