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Article #24069

Re: HELP !!--MAC II POWER FAILURE PROBLEMS !!

#24069
From: Ray Curry
Date: Mon, 18 Jan 1988 18:43
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As to the MacII cover, I had trouble getting it off the first time because
there was no explanation as to what to expect.  I got real nervous when I
had to lift the back so far, fearing the torque reaction might break something.
It turns out that is exactly what you are supposed to do (lift not break).  
There are three rectangular plastic fingers (for a lack of a better name) 
across the front with holes in them that allow a snap in ridge in the base 
to hold on to. As you lift the back of the cover, these three fingers are 
supposed to slip off the fingers that stick in the holes.

---------------------      
   ||--||		\
   ||  ||		 \
   ||--||		--
   ------
The torque reaction is supposed to force the bottom of the cover finger to
slide backward from the wedge shapped ridge.  Mine were a little tight.
Anyway with one hand lifting the back of the cover, I pushed on the front
of the cover to pop the fingers lose and with load grind, the RFI shielding
finally let lose and the cover came off.  I was a little disappointed in 
the construction but can see the logic considering the safety issues with
UL.  I was supprised to find the electronic power switch because of UL,
but UL does allow the power cord to be used in lieu of a mechanical break.
I just haven't ever seen anyone else take that approach.

As to the orginal posting of the power on problem, I can't offer any suggestions
there.  Because the II uses an electonic switch, it seems like it ought to work
or there is a hard failure.  I hate to be insulting, but hopefully you checked
to make sure the power cord was firmly attached.
Technical Details
Message-ID: <4918@nsc.nsc.com>
Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!lll-winken!lll-lcc!lll-tis!ames!pasteur!ucbvax!hplabs!nsc!curry
References: <2542@dasys1.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!lll-winken!lll-lcc!lll-tis!ames!pasteur!ucbvax!hplabs!nsc!curry
From: curry@nsc.nsc.com (Ray Curry)
Newsgroups: comp.sys.mac
Subject: Re: HELP !!--MAC II POWER FAILURE PROBLEMS !!
Message-ID: <4918@nsc.nsc.com>
Date: 18 Jan 88 18:43:32 GMT
References: <2542@dasys1.UUCP>
Reply-To: curry@nsc.UUCP (Ray Curry)
Organization: National Semiconductor, Sunnyvale
Lines: 27
Keywords: MAC II, POWER, PROBLEMS, TSURIS, HELP!!