EddieDX4
Veteran Member
I have a bizzarre problem... My 1000 TL/2, very randomly, will change the background color from black to blue. The machine could be sitting there, idling, and bam...blue background (the whole background, including border).
The machine remains fully operational, but if I hit the RESET button the blue remains (even through the POST procedure).
I'm using a CM-11 that I tested with my TX and an HX, and neither cause this behavior with it, so the monitor can be scratched off.
Even if I try to change screen modes (in DOS, or even in BASIC), or if I open a game, the blue remains..
I just upgraded the system to 768k using NEC 41464C-8 chips, but the issue was there before.
Any clues? Is the Tandy Graphics Adapter going bad?
Could it be a conflict with the XT-IDE card I'm using in it?
The issue can happen once every few hours, or a few minutes after using the machine, and sometimes it just switches blue and then back to black within a few seconds... If I power the machine off and back on it's fine, sometimes permanently for that session. This is very odd...
The machine remains fully operational, but if I hit the RESET button the blue remains (even through the POST procedure).
I'm using a CM-11 that I tested with my TX and an HX, and neither cause this behavior with it, so the monitor can be scratched off.
Even if I try to change screen modes (in DOS, or even in BASIC), or if I open a game, the blue remains..
I just upgraded the system to 768k using NEC 41464C-8 chips, but the issue was there before.
Any clues? Is the Tandy Graphics Adapter going bad?
Could it be a conflict with the XT-IDE card I'm using in it?
The issue can happen once every few hours, or a few minutes after using the machine, and sometimes it just switches blue and then back to black within a few seconds... If I power the machine off and back on it's fine, sometimes permanently for that session. This is very odd...