pmack10 Posted October 24, 2020 Share Posted October 24, 2020 All I have an Atari TT030 and everything was working fine. Today I turn it on and I have no video signal. The computer turns on, the HD light briefly fires up but then it keeps the floppy light on. I tried inserting floppies but nothing changes. Any ideas of what could be going on and how I can troubleshoot it? Thanks Quote Link to comment Share on other sites More sharing options...
mdivancic Posted October 25, 2020 Share Posted October 25, 2020 I would start by checking the power supply. Make sure the voltages are correct. Quote Link to comment Share on other sites More sharing options...
pmack10 Posted October 25, 2020 Author Share Posted October 25, 2020 Thanks Mike. It does look like something is wrong with the power supply... Do you know of anyone who sells replacements or is there any way to replace this for a modern power supply? Quote Link to comment Share on other sites More sharing options...
MasterMotorola Posted October 25, 2020 Share Posted October 25, 2020 pmack10, search for the Mean Well RQ-65C (quite a few members here have used the 65B model in their STs). If you want a fan that is almost silent, I highly recommend the Noctua NF-A6x25 FLX. Quote Link to comment Share on other sites More sharing options...
pmack10 Posted October 26, 2020 Author Share Posted October 26, 2020 Thanks! I looked it up and it seems easy to find. It looks like they have variants with or without shielding, what do you suggest? Is it a pretty straight forward conversion (it looks like all voltages are there) or does it require any customization? Quote Link to comment Share on other sites More sharing options...
MasterMotorola Posted November 3, 2020 Share Posted November 3, 2020 pmack10, I haven't updated my PSU yet, only the fan (I haven't updated the clock battery either, it's still the original from 28 years ago ?). But others on the forum have installed the Mean Well so perhaps someone can comment. Have you checked the fuse in the PSU to make sure it's not just a blown fuse? If you do want to update the PSU, this great video by Jan Beta shows the same procedure on a Mega ST... Quote Link to comment Share on other sites More sharing options...
MasterMotorola Posted November 7, 2020 Share Posted November 7, 2020 I see you have since listed the TT on eBay: https://www.ebay.com/itm/324363840510 Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.