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From: envwpk@epb2.lbl.gov (Werner P. Keilholz)
Newsgroups: comp.sys.handhelds
Subject: Open HP28S case ? 4 FAIL ???
Summary: How to open HP28S case (query)
Keywords: HP28,broken
Message-ID: <13165@dog.ee.lbl.gov>
Date: 14 May 91 16:04:15 GMT
Reply-To: envwpk@epb2.lbl.gov (Werner P. Keilholz)
Organization: Lawrence Berkeley Laboratory, Berkeley
Lines: 26
X-Local-Date: Tue, 14 May 91 09:04:16 PDT

"Hallo world \n" :-) ,

I wonder whether anybody ever tried to open the case of a hp28S ?

I would never ask such a brutal question if my hp28S wasn't broken,...
it says "4 FAIL" upon self-test. So my last hope is to find the
usual loose wire inside, but how to *get* inside ???
HP's standard service fees for repairing the 28 here in Germany
are so way out of bounds that I'd rather throw it away than having it
fixed (for the equivalent of about $180 !!!).
Does anybody know what "4 FAIL" means ? (Actually it's "5 FAIL if
I try the "step-by-step-selftest" (the one that requires input
from the keyboard). 

Any ideas are highly appreciated.

Thanks in advance,

Werner

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Werner Keilholz                  Georg -            _____
Kuenhoferstrasse 2 / #32                 Simon -   |     |
D-8500 Nuernberg                                   | OHM |    Fachhochschule
Federal Republic of Germany                        _\   /_    Nuernberg
E-mail: KEILHOLZ@CNVE.RRZE.UNI-ERLANGEN.DE