Rainbow boot error

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Article #1880

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#1880

From: Frank Mallory
Date: Sun, 25 Feb 1990 02:49

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

Take out the system board and loosen and reseat all the socketed chips.  Also,  
check the flat cable between the power supply and system board for burnt  
(dark) connectors.

               frank.mallory@blkcat.fidonet.org
 



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	Frank Mallory at The Black Cat's Shack (Fidonet 1:109/401)
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uunet!blkcat!f123.n109.z1.fidonet.org!Frank.Mallory
From: Frank.Mallory@f123.n109.z1.fidonet.org (Frank Mallory)
Newsgroups: comp.sys.dec.micro
Subject: Rainbow boot error
Message-ID: <535.25E71233@blkcat.fidonet.org>
Date: 25 Feb 90 02:49:08 GMT
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