HP 9836 & 9836U

The obvious place to start is the Australian museum site, http://www.hpmuseum.net/ . The trap for the unary is that the the 9836 is very closely rleated to the HP9826, to the extent that some of the boards may be indentical []1. as a result some of the manuals on that side are listed under the HP9826 section. There is an official HP service manual. Of course it's a boardswapper guide with no schematics, but it does incldue pinouts of the internal conenctors. I think one of the video connectors was mis-drawn, basically they numbered it 1 5 2 6 3 7 48 as opposeed to 1 2 3 4 5 6 7 8 But it's obvious when you look at it. There should also be my schematics for the 9826/9836. These (if you can read the handwriting) cover the 9826, 9836A and 9836C, will al versions of the boards that Iv'e seen/ The -U CPU board is there. [1] To be precise, early 9826s had boards taht were 9826-only in many cases. Like a floppy controlelr that could only handle one drive. But the 9836 floppy controller (for example) can be used i na 9826, and was used in later 9826s fro mthe factory. I've enver seen any of the 9826-specific boards (other than the motherboard and video stuff, obviously). -tony