Screen shows only one vertical line

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Article #21213

#21213

From: Harton
Date: Wed, 04 Nov 1987 12:16

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My Mac 512e (started as an 128k in 1984), displays the following symptom:
When switched on, the screen displays only one vertical line, in de middle 
of the screen. Everything works, just no screen image. Sometimes, the problem
seems to disappear after a while (after heating up?). I would like to know
what to do about it (besides replacing the analog board).
Does anybody have any suggestions?

Thanks in advance,
Jaap Bood
ihnp4!ihlpg!hvlpb!jbood

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!amdcad!ames!ptsfa!ihnp4!ihlpg!jcrc
From: jcrc@ihlpg.ATT.COM (Harton)
Newsgroups: comp.sys.mac
Subject: Screen shows only one vertical line
Message-ID: <4198@ihlpg.ATT.COM>
Date: Wed, 4-Nov-87 07:16:38 EST
Article-I.D.: ihlpg.4198
Posted: Wed Nov  4 07:16:38 1987
Date-Received: Sat, 7-Nov-87 12:07:55 EST
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 10
Keywords: hardware screen