hp-71b installing/removing memory - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: hp-71b installing/removing memory (/thread-30989.html) |
hp-71b installing/removing memory - Terry Ingram - 03-29-2003 Hello all, Can someone provide instructions (if any) for preparing the hp-71b to accept 4k or 32k ram memory modules. I recently inserted a 4k memory module which resulted in a memory reset. I have removed the 4k memory module, and now the 71b seems to be locked. I am unable to turn off the machine. I am assuming the memory modules were originally supplied with paper instructions for proper use, which I do not have.
Thanks, Re: hp-71b installing/removing memory - Raymond Del Tondo - 03-29-2003 Hello,
maybe you could try the INIT key combinations (see HP-71B manual),
Raymond
Re: hp-71b installing/removing memory - resulting with hp-il problems - Terry Ingram - 03-29-2003 After removing the batteries, I shorted the battery contacts and the 71b powered up fine. As your suggestion, I issued FREE PORT(1), before pulling the memory module, and everything worked okay. No memory reset. Upon re-inserting the memory module, the 71b automatically configured the memory as main ram. Another problem I've noticed during this episode, is now the hp-il module doesn't work. The hp-il module doesn't respond to "CONTROL OFF" or "RESET HPIL" commands. Any suggestions for the hp-il problem? Are there any way to physically reset the hp-il module?
Thanks for the help, Re: hp-71b installing/removing memory - resulting with hp-il problems - Raymond Del Tondo - 03-30-2003 Hello,
I'm not a hardware expert,
Maybe pulling it off the machine then reinserting could help, Another idea: Is the loop closed?
Raymond
Re: hp-71b installing/removing memory - resulting with hp-il problems - Terry Ingram - 03-30-2003 No, the hp-il doesn't work with any commands at all. Not even the "reset hpil". I've pulled and re-inserted the module, but the operation is still the same. I've tried the closed loop test as described on page 211 of the hp-il owner's manual, and do not receive either the screen cursor indicated a good module, or the "self test failed" message indicating service is required. The 71b just remains in a frozen state until I press the ON key several times. The hp-il module is recognized with the VER$ command, "HPIL:1A". Unless there is a physical way to reset (short contacts?), I think it may be time for a new hp-il module.
Thanks for your help,
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