STE - White Screen resets
Posted: 19 Jul 2025 14:32
Hi all,
so after many months found some time this week to do some Atari refurbs.
Machine in question is 4mb STE. I bought a fast tos switcher from here, installed it, as per the way ive done with a previous,
Gave the machine a clean up and recapped the PSU.
Testing before re-assembly and powering on machine get a white screen and then a reset continually under tos 1.62 and on 2.06 two bombs and some screen corruption.
So far i have tested and re-seated all sims,
swapped in a known good PSU, tried multiple VGA cables and adaptors and monitors.
Swapped back in the original TOS roms.
connected another floppy and disconnected.
tested 7406 u210 pins 2 and 4 with multimeter both reading 5v
machine is as bare bones as it can get it but still exactly the same issue.
I haven't got anything else to reseat so am at a bit of a loss now.
Motherboard is ca 401177
Does anyone have any other suggestions ? feeling frustrated with the amount of time ive spent on this.
any help appreciated
thanks
so after many months found some time this week to do some Atari refurbs.
Machine in question is 4mb STE. I bought a fast tos switcher from here, installed it, as per the way ive done with a previous,
Gave the machine a clean up and recapped the PSU.
Testing before re-assembly and powering on machine get a white screen and then a reset continually under tos 1.62 and on 2.06 two bombs and some screen corruption.
So far i have tested and re-seated all sims,
swapped in a known good PSU, tried multiple VGA cables and adaptors and monitors.
Swapped back in the original TOS roms.
connected another floppy and disconnected.
tested 7406 u210 pins 2 and 4 with multimeter both reading 5v
machine is as bare bones as it can get it but still exactly the same issue.
I haven't got anything else to reseat so am at a bit of a loss now.
Motherboard is ca 401177
Does anyone have any other suggestions ? feeling frustrated with the amount of time ive spent on this.
any help appreciated
thanks