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Article #767power-supply problem => screen shrink (briefly upon login) on 1186 ?
From: Eric Ho
Date: Tue, 20 Feb 1990 21:21
Date: Tue, 20 Feb 1990 21:21
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1640 bytes
Someone told me that this is usually a power-supply problem -- namely, after being in idle mode for a long time (say over 1 day), you'll see the screen suddenly shrink briefly and then expand back to normal (accompanied by a small cracking/static noise) when you just logged into the system (because switching from being near-dark to total brightness will take a lot of power and if the power-supply is not up to it, you'll see this problem). So, I called Xerox up. And they said that this could be a problem. But they said that there're 3 power-supplies -- 2 in the chassis and one inside the monitor/console. The one inside the monitor is called the high-voltage power-supply. Now, doesn't anyone know that it is usually this particular power-supply. The only problem is that this power-supply will have to be replaced along with the monitor -- in other words, we'll need to replace the entire monitor if the culprit is indeed this high-voltage power-supply. Does anyone have any idea how much it'll cost to replace this kind of monitor (on a time & material basis) ? Any pointers appreciated. -- Eric Ho Princeton University eho@clarity.princeton.edu
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uunet!brunix!phoenix.princeton.edu!eho From: eho@clarity.Princeton.EDU (Eric Ho) Newsgroups: comp.sys.xerox Subject: power-supply problem => screen shrink (briefly upon login) on 1186 ? Message-ID: <EHO.90Feb20162111@word.Princeton.EDU> Date: 20 Feb 90 21:21:11 GMT Sender: news@brunix.UUCP Distribution: comp Organization: Cognitive Science Lab. Princeton University. Lines: 25