Hitachi P50S601 dimly lit screen

The problem started with 3 blinking lights so after opening it up to take a look I noticed 2 bad caps 100v 3300uf which were swollen. After replacing the caps the tv now turns on by its self after plugging in the power cord after about 3 seconds. The fans are running, status light turns blue and their is a faint light over the entire screen. It will run for 30 -60 seconds then turn off then back on again. The tv doesn't respond to any input from the remote or the controls on the front to power down.
I initially thought the logic board was at fault and replaced it but there was no difference. According to the service manual the logic board is not replaceable and says its a part of the panel.(panel failure) Following the troubleshooting in the manual I have traced it to a short in the SDR-R and X-SUS but does anyone know if this is worth fixing not sure the very dim grey light I get on the screen is what the service manual is calling a panel failure?