stephenellis2000 Posted June 25, 2020 Share Posted June 25, 2020 (edited) Afternoon all... so i recently found and decided to hook up my old supradrive to my atari st to look at some old files on there (i`m a working musician and used the ST extensively during the 80`s / 90`s... upon power up i heard a bit of a "crack" from within the casing !!!! ... so i opened her up and a couple of chips on what looks like the controller board were fried ... a quick look on the web meant that i could source the affected chips still and relatively cheaply (hurrah!) ...BUT..... one of the affected chips seems to be a custom programmed EPROM.. and i was wondering if anyone has or knows where to get the file i need to re-burn the new chip as my drive is useless without it .... alternatively can anyone suggest an alternate housing i could source so i can swap the actual HD over ... see piccy`s for the lowdown ... affected chips are 74HCT240N X 1 Easily available S7407N X 1 " " PAL16L8ANC X 1 " " CUSTOM EPROM.. Thanks for any advice / help offered.. steve Edited June 25, 2020 by stephenellis2000 Quote Link to comment Share on other sites More sharing options...
TGB1718 Posted June 25, 2020 Share Posted June 25, 2020 My guess is the Power Supply went faulty if so many chips have been damaged, I would also suspect even the ones not displaying any damage may also be "fried". Before you go any further I would unplug the PSU and check the 5V and 12V levels (I think older drives had 12V) On my ST's I use an ICD interface in a standard hard disk case from "way back", it had an internal PSU, but no controller, so I fitted the ICD interface into it, its a verysmall board, and it works fine. Just a thought, this is the 8 Bit Forum, you may get more help from local people if you post this on the ST forum. 2 Quote Link to comment Share on other sites More sharing options...
stephenellis2000 Posted June 25, 2020 Author Share Posted June 25, 2020 33 minutes ago, TGB1718 said: My guess is the Power Supply went faulty if so many chips have been damaged, I would also suspect even the ones not displaying any damage may also be "fried". Before you go any further I would unplug the PSU and check the 5V and 12V levels (I think older drives had 12V) On my ST's I use an ICD interface in a standard hard disk case from "way back", it had an internal PSU, but no controller, so I fitted the ICD interface into it, its a verysmall board, and it works fine. Just a thought, this is the 8 Bit Forum, you may get more help from local people if you post this on the ST forum. Yeah ... thought that also about the PSU ... I`ve ran a capacitance tester all over it and it comes back "normal" also the old multimeter on the resistors etc ... but i hear what your saying ... i have a bench power supply so i`ll hook that up and see whats being output ... i`m interested in your solution but to be honest most of what i do is now in the P.C. domain and thus going back to the atari stuff is like being a time traveller !! ... just as a matter of interest do you know if these old caddy`s /ICD Interfaces are freely available ??.. thanks for your time/reply steve Quote Link to comment Share on other sites More sharing options...
mellis Posted June 25, 2020 Share Posted June 25, 2020 The Atari ST section of this forum might prove to be more helpful and more relevant. 1 Quote Link to comment Share on other sites More sharing options...
TGB1718 Posted June 25, 2020 Share Posted June 25, 2020 Here's the link to the ST forum https://atariage.com/forums/forum/20-atari-stttfalcon-computers/ I noticed on the home page it doesn't mention the ST, you have to select Forums first and then it's there Quote Link to comment Share on other sites More sharing options...
stephenellis2000 Posted June 25, 2020 Author Share Posted June 25, 2020 41 minutes ago, mellis said: The Atari ST section of this forum might prove to be more helpful and more relevant. Duly noted ..and posted in the correct section .. thanks Steve Quote Link to comment Share on other sites More sharing options...
BillC Posted June 27, 2020 Share Posted June 27, 2020 On 6/25/2020 at 4:14 AM, TGB1718 said: Before you go any further I would unplug the PSU and check the 5V and 12V levels (I think older drives had 12V) AFAIK only 2.5" HDD don't use +12V, and all SCSI HDDs are older technology since SCSI was replaced by SAS in 2004. Quote Link to comment Share on other sites More sharing options...
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.