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Path: utzoo!watmath!clyde!burl!hou3c!hocda!houxm!ihnp4!nsc!nessus
From: nessus@nsc.UUCP (Kchula-Rrit)
Newsgroups: net.micro.ti
Subject: Re: TI problem
Message-ID: <1328@nsc.UUCP>
Date: Fri, 17-Aug-84 15:33:53 EDT
Article-I.D.: nsc.1328
Posted: Fri Aug 17 15:33:53 1984
Date-Received: Sun, 19-Aug-84 01:44:34 EDT
Organization: The Patriarchy of Kzin
Lines: 23

This is for person whose son's TI had died--


     A couple of days ago, my TI 99/4A died just after loading an assembler
I am working on(LONG program).  I powered it off and then back on again,
after disconnecting my homebrew RAM expansion and speech synthesizer.  That
time the screen went black and the sound generator started putting a high-
pitched wail.

     After opening up the case, I pulled out the power supply board and checked
voltages.  Both +5 and +12 were fine, but -5 was gone.  The CPU and GROM, among
other things, require -5V to work.  I am going to replace the -5V regulator this
weekend and post the results.  I hope the rest is OK.

     By the way, I found out why the black area on the right of the console by
the cartridge port gets so warm:  the power supply sits right there.  I'm
going to see about mounting a fan on my console.

Hope this helps(me,too)!

                              Kchula-Rrit
                              !menlo70!nsc!nessus