I have one of these and would like to get it working correctly, but
 can't find any info on it from the internet.
 It has a date code of 1989 and was built in Yokahama Japan, by who I
 don't know.
 Does anyone know who DEC had build there CRT monitors back then? Are
 schematics available?
  
I have a VR297-D3 which is actually a Sony GDM-1602.  These details
are written on the label on the back of my monitor though so I guess
they aren't on yours.
Regards,
Peter Coghlan.