I need a ribbon cable that will connect (as female end) to a 40mm 16 pin male (on a LCD screen) and the other end needs to be an 18mm 16 exposed pins which then slides and locks on the PCB. Does anyone know what part/ribbon cable I could buy to achieve this please? Another thought I’ve had is is the...

Still not working. The battery pack for the HP-97 is the same as used in the external printer of the HP-41. I've charged it and it maxs at about 5v DC. With both the power adaptor and the battery pac installed I now get a single red dot on the LED screen which is new and I believe it to be the power...

The HP-97 Service Manual can be downloaded at
http://www.nightfallcrew.com/wp-content ... manual.pdf

I'm a total beginner in Electronics and Electrical Engineering. I'm a 68 year old retired IT Manager and for some years I've collected mainly HP and TI vintage calculators which I also program. My current project is very personal to me; it's an HP-97 calculator\computer which appears to be dead to t...