kvonb wrote:
Make: Viewsonic
Model: P810-2E
Chassis: HV8SA
Other #: TNPH0089-4 (on chassis)

I had a P810-1M monitor. Im not sure if it is different from yours.
Check the FCC number. Mine is GSS21001 August 1996
It has the same chassis number.
I do have a service manual and schematic for mine.
Check the FET transistor that drives the flyback transformer.
E-Mail me if you need more info.
John