HP-67 Card Reader became very touchy

[Hiwi]

Hi Alevin,
i remember, that i had a HP97 board with the same issue, and i replaced every capacitor with no sucess. The problem was the CRC chip. I replaced it from a donor HP97 board and it worked again.
Sometimes the solder joints are problematic, first try to resolder the CRC Chip.
And check the ribbon cable to the cardreader with a multimeter.

If you no donor board I can send you one or a CRC Chip.
Ralf