May actually be worth while to have a Hitachi ASC check out your set and
give you a diagnostic report.
wrote in message
oups.com...
Any qualified technician at a verifiable service center can get access
to the Hitachi service manuals from Hitachi Service's web site. It may
take a couple of weeks for them to verify the information before you
have access.

Otherwise you need to buy the service manual froma Hitachi distributor,
like tritronicsinc.com, etc.