Re: Pro-380 keyboard not working

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#798

From: Barry Kort
Date: Sun, 27 Sep 1992 15:45

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Take out the Mother Board and inspect the area near the Video Connector.
Look for a meltdown on one of the leads and bridge it with a dollop
of solder or a jumper wire.

To remove the Mother Board, pop the latch at the front of the HD and
floppy drives and slide them forward.  Uplug the ribbon cables to the
card cage, and unscrew the 3 thumbscrews on the front of the card
cage.  Unplug the power cable and slide the Mother Board out.

The meltdown can occur if you try to connect the Video Connector with
the power on.  If you misalign the connector, you can short the power
lead and meltdown the lead (I think it's Pin 1 or 2) to the keyboard.

Write me at barry@michael.ai.mit.edu if you need further advice.

Barry Kort
Visiting Scientist
Educational Technology Research
BBN Labs
Cambridge, MA

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Message-ID: <BARRY.92Sep27114528@chezmoto.ai.mit.edu>

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References: <1992Sep27.052504.3763@arizona.edu>

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Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!Germany.EU.net!math.fu-berlin.de!Sirius.dfn.de!darwin.sura.net!spool.mu.edu!think.com!mintaka.lcs.mit.edu!ai-lab!barry
From: barry@chezmoto.ai.mit.edu (Barry Kort)
Newsgroups: comp.sys.dec.micro
Subject: Re: Pro-380 keyboard not working
Message-ID: <BARRY.92Sep27114528@chezmoto.ai.mit.edu>
Date: 27 Sep 92 15:45:28 GMT
References: <1992Sep27.052504.3763@arizona.edu>
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In-reply-to: petrisko@evax2.engr.arizona.edu's message of 27 Sep 92 12:25:04 GMT

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