Path: utzoo!mnetor!uunet!husc6!ukma!psuvm.bitnet!cunyvm!byuvax!chad
From: chad@byuvax.bitnet
Newsgroups: comp.sys.atari.st
Subject: RE: Re: tried to 1 meg, problem
Message-ID: <118chad@byuvax.bitnet>
Date: 15 Feb 88 09:40:44 GMT
Lines: 31




About the resistors.  The people (many) who gave me instruction on how
to do it all mentioned resisitors needing to be put in.  On the REV D
board there are 4 68-69ohm resistors as follows

      -***-
      -***-
      -***-

      -***-
and then 9 or so 330ohm
   -***-
etc.

The two I put in were in that space there in the 4 and underneath the 4
68-69 ohm type.  We looked at a 1040STf REV B board (which is totally
laid out on the board differently -- RAM, not ROM under power supply,
CPU not on right, etc.) and it two had 6 (not 4) 68-69 ohm resiistors
and 9 or so 330 ohm resistors with the RAM.  Someone told me the resistors
are there to be nice to the MMU chips and that some early 520 ST models
didn;t have them but they do now.

We are going to first try reseating the MMU and then try to get one.
(anybody have one cheap???)

Chad

Disclaimer:  I am not a lawyer, never was, never will be, so don't
sue me -- I ain't got no money.