HP97 The journey begins

[teenix]

Hi all,

The 19C work is still going on behind the scenes.

I've managed to connect the CPU board to the battery board with FFC cable and have attached battery contacts to the circuit board. These are not the same as the original, but still have the same contact area. I don't have an original battery, so it is just a bit of guess work.

The battery board (frustratingly) is still a work in progress. As soon as I get it constructed something I don't notice (until the time comes) rears its ugly head and won't fit properly. Things like tiny lugs molded into the printer housing which are inconspicuous until you realize what they are there for.

The interconnects between the two boards have been a bit of a problem. Mark Flemming offered a tip which I think will help alleviate one of the issues. The 19C is a real tricky design, which for those that have opened it and tried to reassemble would no doubt know. There is not much that can be done, so this design won't offer much relief in that area.

Anyway, I powered the battery board up and the main power switch is doing what it is supposed to do. Next, I will start populating the new design CPU board and try to get the processor going.

cheers

Tony