Rainbow boot error

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#1876

From: Paul Nankervis
Date: Thu, 22 Feb 1990 22:25

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I have a RAINBOW 100B which fails to boot. It displays ERROR 18
and has all the diagnostic lights on except 5 & 6. I have a set
of RAINBOW 100A documentation which says that this is a Z80 CRC
error. Does anyone know what causes this error (eg Z80, RAM, ROM, etc),
or do I have to throw away the motherboard?

Paul Nankervis
CCPN@LATVAX8.LAT.OZ
La Trobe University
Australia

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!munnari.oz.au!murdu!ucsvc!ltu!ccpn

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!munnari.oz.au!murdu!ucsvc!ltu!ccpn
From: CCPN@latvax8.lat.oz (Paul Nankervis)
Newsgroups: comp.sys.dec.micro
Subject: Rainbow boot error
Message-ID: <359@latvax8.lat.oz>
Date: 22 Feb 90 22:25:57 GMT
Organization: VAX Cluster, Computer Centre, La Trobe University
Lines: 10