Hi all. I am really a newbie on CRT and I would appreciate a lot if someone could help me. In work I have a Barco 701s mounted in a Thomson Venturer 14 seat simulator that is not working as no lights come off the tubes. In the autodiagnosis panel all green leds are ok, HOLD DOWN EHT is red an HOLD DOWN HD is orange. I have asked for a repair budget but it was really expensive and not affordable, and I think and hope that the solution is not very complicated or difficult if someone can inform me where is the EHT Power supply in order to replace it. Does the EHT as any reference number written? Can be a fuse ( if it has one)? How can I discover the real problem ( difficult question Does someone experienced the same problem? Thank you very much for all your help.