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From: husted@iccgcc.decnet.ab.com
Newsgroups: comp.sys.amiga.hardware
Subject: My A2000 power supply shuts itself off. Why?
Message-ID: <2166.2752a2fc@iccgcc.decnet.ab.com>
Date: 27 Nov 90 22:31:40 GMT
Lines: 26

It looks like my A2000 power supply died. ;-(

SYSTEM:
        A2000 approx 2.5 years old with 3meg RAM,8088 bridge board hard disk

Problem:
        I was using it for > 6 hours and all the sudden, it looked like it
        turned itself off. The monitor was still on but the power LED and 
        fan and computer was off. I turned it off and let it set for 5 mins. 
        and turned it back on and it went quit a ways through the powerup 
        sequence but then turned itself off again. I turned it off, waited a 
        day and tried again it started to powerup but turned itself off again 
        during the powerup sequence.

QUESTION:
        Is this a failure mode that anyone is familiar with?

        I took the supply out and did some probing around with a volt meter
        (I have no schematics) I can see where the 115 volts AC is converted 
        to 250 volts AC then converted to high voltage DC and switched run 
        through a multi tap transformer. I don't know what all the voltages 
        should be (without load) I did measure 9.2 volts at the fan (12 volt 
        fan) but the fan doesn't budge.

        Anyway, any help would be appreciated. I would like to avoid spending
        the $150 for a new supply.