Hitachi 51G500A and the screen when blank

Hi I am vortash I have just looked at the service manual for this set and it actually does not use a bulb as it is not an Lcd or DLP projection TV . It actually employs three CRT based tubes that produce the picture with automatic focus and convergence systems . If you do not have the manual for this set you can download it from http://www.safemanuals.com free of charge It says that if you have sound and no picture turn the set off and unplug it for 3o seconds then replace plug and turn on from switch on set not from the wall plug switch .. as this may reset the tv and cure the problem .. hope this helps regrads Vortash