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HP-71B Startup Time - ROM Differences
09-10-2014, 05:57 PM (This post was last modified: 09-10-2014 05:59 PM by rprosperi.)
Post: #16
RE: HP-71B Startup Time - ROM Differences
Thanks Jose and Sylvain for additional suggestions.

This morning, the 71 had another slow start, so here's the next few things I will try, in order:
  • Replace actual Loop with single (loopback) cable
  • Remove HPIL Module
  • Remove SHOWPORT LEX file and Forth41 ROM
  • Remove all BASIC Programs
  • Do INIT:3 to wipe RAM
  • Remove RAM modules
  • Not open the case and fiddle w/Hardware (I'd rather start slow than possibly harm inside)

I just wish I didn't have to wait so long (seems like 4-hours is the likely inflection point) between tests.

--Bob Prosperi
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RE: HP-71B Startup Time - ROM Differences - rprosperi - 09-10-2014 05:57 PM

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