HP-65 more on the card reader

[albertofenini]

Thanks Andy,

that's a good point that we missed, however, we replaced everything on that Card Reader.
Other than the PCB itself and the capacitor close to the Amplifier what could possibly be ?
Remember that we even changed the Amplifier itself, the Head, the resistor, the other capacitors and swapped the logic board.
Thanks for help, take care !!

[EDIT] we obviously checked for all possible bad traces, or short circuits and there are none, it's a very clean PCB