looking for 5x7 display diagrams



#4

Hi any one can give me the diagrams of the 5x7 dot matrix display found in hp calculator 9830a? 1990-0345 638


#5

What do you mean by 'diagrams'. It's just a matrix of LEDs, no internal logic. You can get 'my' schematics for the 9830 either on the HPCC CD-ROM or from the Australian museum site, I think I included a pinout in there.

#6

thanks for the info what is the link for the Australian museum site?


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