Path: utzoo!attcan!uunet!lll-winken!ames!mailrus!csd4.milw.wisc.edu!uwmcsd1!lakesys!rich
From: rich@lakesys.UUCP (Richard Dankert)
Newsgroups: comp.sys.atari.st
Subject: Re: Flaky ST!
Message-ID: <301@lakesys.UUCP>
Date: 16 Jan 89 05:34:06 GMT
References: <8901150021.AA01172@ucbvax.Berkeley.EDU>
Reply-To: rich@lakesys.UUCP (Richard Dankert)
Distribution: na
Organization: Lake Systems - Milwaukee, Wisconsin
Lines: 27

In article <8901150021.AA01172@ucbvax.Berkeley.EDU> V067MAJP@UBVMS.BITNET (Arion) writes:
>Help!
>I'm not sure watch to do with my ST. Anyone have any suggestions?
>(Before you start, let me list some symptoms.)
>VERY erratic behavior. Sometimes, it works perfectly, others it refuses to
>boot.

	Misc stuff deleted....

Try reseating the MMU in it's socket. If that does not work, if you have `any
small electronics knowledge, and can get your hands on a dental type tool, 
remove the MMU from the socket, then slightly pry the pins outward.

I have seen this and many other symptons just like it. Today I just repaired 
a system that made the owner really think that he had some breaks in the 
pcb, for all his keyboard troubles. Re-booting etc....

That one small fix did the trick. If the machine that you have is indeed a 
1985 board, it may have been one that at one time had a ram expansion 
installed in it. Some of these ram expansion units press the pins in too 
tight so the mmu cannot make contact correctly.

Now if you do not have the expertise in this area, then I advise you to take 
Atari up on their exchange offer. At $95.00 it really is a deal.

rich.....
UUCP: rich@lakesys.lakesys.COM     {always .... }