Atari Mega ST 2 White Screen
Posted: Thu Jul 11, 2019 6:52 am
Hi all -
Tonight we were playing some games on my Mega ST 2 and I noticed some horizontal lines on the screen. At first I though it was the monitor, but then I hit the reset button and the ST never came back. Instead, I just get a white screen -- no floppy access. The keyboard LED does light up though. I have not started troubleshooting yet, but plan to open her up soon and first check voltages on the PSU, then make sure all socketed chips are well-seated. After that, is there anything obvious? I don't have spare chips (GLUE, Shifter, etc...) to start chip swapping, but I'm hoping there is maybe something I could check with a logic probe.
Thanks!
-matt
Tonight we were playing some games on my Mega ST 2 and I noticed some horizontal lines on the screen. At first I though it was the monitor, but then I hit the reset button and the ST never came back. Instead, I just get a white screen -- no floppy access. The keyboard LED does light up though. I have not started troubleshooting yet, but plan to open her up soon and first check voltages on the PSU, then make sure all socketed chips are well-seated. After that, is there anything obvious? I don't have spare chips (GLUE, Shifter, etc...) to start chip swapping, but I'm hoping there is maybe something I could check with a logic probe.
Thanks!
-matt