Mr Fent. I am in Quebec City, Canada
My PT is for a long time (40days) to a Panasonic Sercice Center exactly for the same problem describeb in this forum. I give to the repairman the link of many forums, including this forum, talking about Power Supply Problems Issues. The Sv. cnter technical peoples called Pana ingeeners and they reject the Power supply theory and tells svc. center this is a ballast problem. I have to wait again because ballast is in back-order. I doubt this will solve the problem when they will receive the new one and replace in the PT700. One month ago I was able to contact Pana USA by email and they gived me some help but as soon they realized i am in Canada ther refer me to Pana Canada who tells me (final answer) there is no Known Power supply problems with PT700. Panasonic have no trouble historics and, as I am concern, Pana Canada and Pana USA do not collaborate togetrer.
Replacing ballast is a fix i could do myself, I am technician but not specialized in that kind of stuff. But the problem is if I order a ballast by myself and replace by myself they will not refound the ballast if it dont solve the problem. The svc. center do not have this problem because the have arrangement to send back the ballast to Pana. Finally I do not have any other choice, accepting the estimate of the svc. center, 450$, to replace the ballast. They tells estimate is not guarantee, that mean if it dont work i do not have to pay... but it don't give me my PT700. As I could see, there is at least one credible man on that earth aware of the problem. Is there any way to put Service Center in contact with peoples who experienced this trouble? Maybe you??