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From: wb8foz@mthvax.cs.miami.edu (David Lesher)
Newsgroups: comp.sys.dec.micro
Subject: Re: PC100B MEMORY EXPANSION
Message-ID: <1990Dec02.163654.10451@mthvax.cs.miami.edu>
Date: 2 Dec 90 16:36:54 GMT
References: <9012021412.AA08543@remote.dccs.upenn.edu>
Reply-To: wb8foz@mthvax.cs.miami.edu (David Lesher)
Distribution: na
Organization: NRK Clinic for habitual NetNews Abusers
Lines: 26


>While adding chips to my PC100B Memory Expansion board recently I bent
>the tan 10 pin resister pac near the middle of the board.  

>I want to replace the resister pac that I believe is faulty but I am
>unable to find a value for it.  

I can't picture this, as it's been a few years since I've seen
one. But most dip resistor packs come in one of 2 forms:
	1 lead common, 15 resistors
	8 pairs of resistors across the package, so to speak.
(It sounds as if this may be a SIP pack, however.)

If you have access to another board, you could use a DVM in low-ohms
mode to trace out the pack. Or, you could measure the bad pack,
guessing that only SOME of the 'r's are damaged.  Extrapolate from
there.

Another approach would be to call Allen Bradley or another resistor
pack mfgr. (Not a dealer, the factory!) Maybe they can identify it.

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