Triton won't boot up recognizing RAM installed (SIMM slots)

Discussion relating to the Korg Triton Classic.

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Clisto1
Posts: 4
Joined: Sat Jul 17, 2021 2:58 am

Triton won't boot up recognizing RAM installed (SIMM slots)

Post by Clisto1 »

Hey everyone. I'm not sure how to troubleshoot this problem. I wonder if there's an electronic component gone wrong. It seems too weird to be an isolated problem - everything else on the Triton seems to work fine, though I assume the MOSS slots don't work either.

The Triton came with 16MB RAM that won't register at all, and now I tried 2X32MB and they are also not recognized as existing. When in the Sampler's memory page, all 4 RAMs are nonexistent/0 as well.

I tried resetting the Triton (0+Enter) and that didn't help things.

EDIT - I tried 5+Enter and it says for both MIDI and PCIF "Error Step 1" so perhaps that means something here.

Thanks
exobot
Posts: 12
Joined: Thu Oct 20, 2022 5:23 pm

Post by exobot »

Before doing anything else, you should probably double check that the RAM is compatible with the specifications defined by Korg. I found this document for the Rack, but it should be the same for the regular Triton:

http://i.korg.com/uploads/Support/TRITO ... 000000.pdf

It could also be that the RAM isn't making good contact, some careful cleaning of the simms and sockets with isopropyl alcohol could help with that.

If those aren't the problem, I would at least try reinstalling the OS (after backing up everything important, of course). Then you could start thinking about electrical issues, at least looking over the board for corrosion, damaged traces etc.
Clisto1
Posts: 4
Joined: Sat Jul 17, 2021 2:58 am

Post by Clisto1 »

Thanks a lot for the advice! :D

Unfortunately, nothing seems to work having tried those steps again. Do you happen to know what the diagnostic "MIDI - Error Step 1" "PCIF - Error Step 1" means? The MIDI is working fine from what I can tell, though I don't have a way to test the PC port. I can't find those codes anywhere online.

The circuit board looks fine and clean, that's what's puzzling to me.
exobot
Posts: 12
Joined: Thu Oct 20, 2022 5:23 pm

Post by exobot »

Can't say that I do, but it's not out of the question that the Triton is simply expecting something to be connected to those ports for the test to proceed. They do appear to actually work after all.

Have you tried ENTER + 4? According to a service manual I found that should test the SIMMs and nothing else. I don't have high hopes for any useful output, but might as well give it a go.

Beyond that I can't really say what would be the best process for physically diagnosing the board, this is the first time I've heard about an issue like this.
Clisto1
Posts: 4
Joined: Sat Jul 17, 2021 2:58 am

Post by Clisto1 »

Thanks again. I tried Enter + 4, but that just bypassed the other tests to try the SIMM, and sadly they didn't respond. I will post a follow-up if I'm able to solve this, but I'm going to guess that a part of the circuitboard is somehow damaged.
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