Having an issue with my 65r6e3 tv turning on and off. Discovered backlights were out (after replacing main board & power board). Replaced backlights, they are now working but still power cycling. I held in the reset button which put me into recovery mode with the lights staying on. When I go to update the TV...it has to restart to finish the update and goes back to turning on and off. Experimented with disconnecting t-con board, turns on & off. Disconnected the cable from main board to power board, backlights do not come on. Correct me if I'm wrong but shouldn't they come on at this point (w/ no picture)? Thoughts of the issue?
