[arch3/_private/calc1_ahdr.htm]

Re: HP9825A

From: Katie
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Comments

Remove the ROM modules and then remove the Operating System module (it's on the right side of the unit and pulls straight out like the ROM modules). Try re-inserting this a few times and see if that fixes the problem. You might also want to ask for help here: http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/forum.cgi

[arch3/_private/calc1_aftr.htm]