After a search of all the documents and email advice from emails to some of the receipiants it appears this blog, if thats what it can be called, is maintained by the people who search it like you and I...looking for answers where there are none. Unbelievable that this error code list is out there and seems to be used by JVC as well as Sony and it is not for the public to access. Locked , hidden for only the trained technician. Maybe they dont even have it according to some of the contributors. I will check with my local tech reapir and maybe they will enlighten me. Best wishes to all Phil