Path: utzoo!attcan!uunet!aplcen!uakari.primate.wisc.edu!zaphod.mps.ohio-state.edu!usc!snorkelwacker!mit-eddie!rutgers!umn-d-ub!cs.umn.edu!ux.acs!clarson
From: clarson@ux.acs.umn.edu (Chaz Larson)
Newsgroups: comp.sys.mac
Subject: Re: Apple Extended Keyboard Pr
Message-ID: <1142@ux.acs.umn.edu>
Date: 13 Feb 90 20:31:40 GMT
References: <41132.25D6F2C7@cmhgate.FIDONET.ORG>
Reply-To: clarson@ux.acs.umn.edu (Chaz Larson)
Organization: University of Minnesota, ACSS
Lines: 18

In article <41132.25D6F2C7@cmhgate.FIDONET.ORG> Mark.Bryant@p1.f54.n382.z1.FIDONET.ORG (Mark Bryant) writes:
>In a message dated 02/10/90 at 11:33:21, Ed Edell writes:
>> Most of the time I can just unplug the
>> cable from the keyboard...
>
>I've been told by an Apple service tech that this is a really hazardous
>thing to do.  Sez he sees Macs all the time with blown ADB ports 
>resulting from plugging and unplugging ADB devices while the machine
>is on.  Probably best to power down before attempting to mess with
>ADB connections.

i can attest to this.  I've seen three Macintosh IIs blow their motherboards
because the user unplugged the mouse while the computer was powered up.
Always power down the machine before adding or removing ADB devices.

<chaz>