HP-65 1333A20064 serviced by someone ?

[albertofenini]

Hi Everyone,

we are restoring an HP-65 purchased this summer and received in September, the CPU board has a sticker with what looks to be
like a "service date", and some sort of "codes", does everyone know what these mean ?

Our best guess is that has been serviced sometime in the 1983, considering
the serial number, the card reader motor looks like it has been replaced with a newer one.

Usually old units have a card reader motor with the external cover in bare shiny metal
and not painted in green like this one, also the Card Reader amplifier looks to be the new version

Moreover, we have found the the inner side of the battery contacts have been taped
and also an area of the keyboard board, kind of preventing some short circuits

Last, but not least, looks like some small labels have been added in order to achieve the
right pressure between all the various components when the unit gets re-assembled

Any idea ? We will keep posting as our work proceed

Pictures can be found here : HP-65 1333A20064

Take care everyone !!