HP-19C Repair Odysee

[jjohnson873]

(05-04-2021 08:25 PM)PANAMATIK Wrote:  Today in the morning I got the key matrix running and was able to enter keystrokes, which were detected by the PIK, and I could perform the first calculation: I added two numbers. But I could not yet test whether a key was hold down. Also the PRGM/RUN switch was not yet to detect. I needed the whole day to achieve this. Now the HP-19E ACT in conjunction with the newPIK can detect the state of the PRGM/RUN switch, and detect whether the SST and R/S key is still pressed, and I was able to enter my first program.

Code:


01  25 14 01 LBL 1
02        01 1
03        41 + 
04     16 64 f PAUSE
05     14 01 GTO 1

And it works! Also when using the SST key to see the program step, before it is executed.

Bernhard

Congratulations for persistence, Bernhard!