HP-67 Card Reader became very touchy

[Hiwi]

(11-05-2023 07:09 PM)Alevin Wrote:  NO C3 cap is seen in pic 4 , showing the CRD PCB

Yes but if you look closer you can see, that there was a cap, but broken off. Parts of the legs are still in place in the through-holes.

If this cap is missing and the cardreader works than this supports what I said: the cap is not that important.

At the botton of kees page there is another link for a cardreader repair and look C3 and the motor cap are both present:

https://www.hpmuseum.org/cgi-sys/cgiwrap...i?read=180

What is primarily important is the schematic of the cardreader in the service manual.


Ralf