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Article View: comp.sys.atari.st
Article #4588

Re: TOS 1.4 problem

#4588
From: HC Johnson
Date: Thu, 05 Oct 1989 15:52
25 lines
1403 bytes
In article <343@uwm.edu>, pi@csd4.csd.uwm.edu (Peter J Ikusz) writes:
> I seem to have a problem with my TOS 1.4 that I just purchased.
> I have a 7/1985 ST, and when I put the new TOS in and turn it on,
> the screen blanks. No HD access, no floppy access. I know others
> with earlier machines, one also has this problem, the rest do not.
> Any ideas?

First and most likely problem is that a pin either
a. missed the socket and is sticking out -- you can see this.
b. a pin tucked under the rom -- you can't see this.

the only way to handle case b is to CAREFULLY remove the roms
1 at a time, and check them.  Of course, there is a slight probability
that you will fold a pin under while doing this, so its a bit frustrating.

Also, are you really sure the roms are in the correct order?

Finally, you may have a malfuction, that tos1.1 didn't stress.

good luck

Howard C. Johnson
ATT Bell Labs
att!lzaz!hcj
hcj@lzaz.att.com
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Message-ID: <806@lzaz.ATT.COM>
Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!dptg!lzaz!hcj
References: <steveg.89oct3190350@narnia.com.com> <343@uwm.edu>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!dptg!lzaz!hcj
From: hcj@lzaz.ATT.COM (HC Johnson)
Newsgroups: comp.sys.atari.st
Subject: Re: TOS 1.4 problem
Summary: check for bent pins on the roms/eproms
Keywords: TOS 1.4
Message-ID: <806@lzaz.ATT.COM>
Date: 5 Oct 89 15:52:23 GMT
References: <steveg.89oct3190350@narnia.com.com> <343@uwm.edu>
Distribution: comp.sys.atari.st
Organization: AT&T ISL Lincroft NJ USA
Lines: 25