13 Jun
2008
13 Jun
'08
5:18 a.m.
My HP 85 starts up with "Error 23 SELF
TEST"
but seems to work. Does anybody know how
to get it to be more specific about what
isn't working correctly? thanks, -kurt
You may want to check the service manual for the HP-85
http://www.series80.org/PDFs/HP85-RepairCourse.pdf
(username: pdf, passwd: iamhuman)
There is also a service manual for the HP-85 at:
http://hpmuseum.net/document.php?hwfile=3256
but it assumes that you have the self test ROM.
Now back you the SELF TEST error. This can be caused by many things (e.g.
RAM problem), but it may be due to the configuration of the machine.
Do you have any accessories connected to your HP-85? In particular I
believe that if you have the HP-IB interface and the Mass Storage ROM,
you may get a SELF TEST error in some cases (I am intentionally vague
because I don't have an HP-85 near me to check).
Try removing all cards from the back of the computer and power it on to
see if you still get the error.
Regards
**vp