HP97 The journey begins

[teenix]

Hi all,

The 19C CPU is slow going.

I assembled most of the main board and tried a fitment inside the calculator case. I didn't notice that there are locating flanges molded on the inside of the case and some of the component placements stopped the case closing properly. Unfortunately, there was no way around this so a board re-design was required. Things are very tight inside around the printer setup so there is not much room for errors.

Another tricky bit will be the clamshell way of closing the top and bottom halves (each with a circuit board) and making sure the board to board connectors mate ok. The trouble of course nowadays is that you need to find suitable off the shelf connectors.

I have a new board already and will have another go at populating it.

It is somewhat difficult to do while temporarily staying in a caravan with about 6 square feet of bench space, but getting there.

cheers

Tony