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From: hunt@firqb.dec.com (Phil Hunt)
Newsgroups: comp.sys.mac
Subject: MacPlus Video Problems
Message-ID: <11678@decwrl.DEC.COM>
Date: Fri, 18-Sep-87 10:01:54 EDT
Article-I.D.: decwrl.11678
Posted: Fri Sep 18 10:01:54 1987
Date-Received: Sun, 20-Sep-87 01:59:50 EDT
Sender: daemon@decwrl.DEC.COM
Organization: Digital Equipment Corporation
Lines: 13

(Arther Harkin writes...)
 
>...Macintosh Plus is having a "serious" problem......
>(Paraphrasing..) The drive clicks then the screen has alternating 1/2" vertical
>black and white lines.  Whats going on???
 
I had EXACTLY the same problem when I installed an Internal Hard disk WHEN I 
ACCEDENTLY LEFT OUT THE APPLE ROMS!!!!
 
So I would assume the H/W that maps or loads from the ROMS is bad or maybe a ROM
has gone bad itself.  Service Center time!!!
 
Phil Hunt