开云体育

hi,

I found the following actual HP 9100b schematics and instrument logic-flow chart to be very helpful in troubleshooting the HP 9100b Calculator.
{ the actual downloads might take some additional time to load, but are good }.

These, along with Tony D's "pencil"? schematics, are good.

A number of other HP Calculator, Computer manuals, schematics, etc. are found in the 3rd link { below }.
rick