nessus@nsc.UUCP (Kchula-Rrit) (08/17/84)
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