Classic HP forums?? - plotter questions

I've tried to look at them, but all I see is one schematic showing the overall wiring diagram, no schematics of the boards. I'll need that to make any sense of it. Maybe you scanned it as a multi-page jpeg, and maybe the viewer I tried in the local internet cafe couldn't handle that or soemthing. If so, if you can re-do it as seveal separate files, I'll take a look. Incidentally, somethign you might not know if you're not familiar with HP stuff is that they used a numeri code to indicage the colours of the wires. You read the digits as the resistor colour code. For example, a wire labelled 902 is white (9) with a main black (0) stripe and a second red (2) stripe. The main stripe is the wider one. But HP were normally sane enough not to use wries with te same colour stripes so that you had to distingish main from second (if you see what I mean), the wires 902 and 920 will not appear together. -tony