Hi there,
This was sent to me for battery replacement. Two nicads which are toast.
It contains an HPIL module (at least it looks like one). When the unit is assembled and the HPIL is plugged into the HP 41C and simutaneously into the Geodat pca the following module titles are found in CAT 2:
printer 2e
mass st 1h
ctl fns
With the HPIL plugged into the HP 41C and not attached to the Geodat pca via the 16 pin plug nothing displays, in fact the calculator freezes.
I am assuming that the ROM modules reside in the EPROM (chip with the white paper label).
It will be an easy procedure to replace the batteries but I was wondering if anyone had any more info for this that I could supply the owner with and maybe include in the book.
check out the following pictures:
Top shell
Top shell removed showing Geodat PCA and EPROM with white paper label:
HPIL link and battery; two views:
Cheers, Geoff