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MT-32 Service Notes 1st/2nd Edition

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Reply 20 of 23, by CrossBow777

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Spazilton wrote:

Would someone mind please rehosting the 2nd edition files? I have a NWI modified MT-32 that I am going to try to document the modifications for the community but I would rather not have to figure out the schematics from scratch. TY!

Not much there other than the capacitor list for the rev1 that I sumbitted and the map of the capacitor locations. In fact they don't even have a direct link to this yet from their main Wiki pages and I had to search for it. Probably once there is more information Luke will get it more fleshed out.

https://console5.com/wiki/Roland_MT-32

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Midi Modules: MT-32 (OLD), MT-200, MT-90, SD-20

Reply 21 of 23, by Spazilton

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OK, someone in this thread posted the 2nd edition but removed the link. I am looking for a schematic for the -01 revision PCB so I can see the changes of the NWI noise and PCM mods.

Reply 22 of 23, by AmiSapphire

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Spazilton wrote:

OK, someone in this thread posted the 2nd edition but removed the link. I am looking for a schematic for the -01 revision PCB so I can see the changes of the NWI noise and PCM mods.

I do have the 2nd Edition of these notes from that link, but it's not particularly readable in some sections (to me, at least). However, I still regret not buying the physical copy of the 2nd Edition notes I saw on eBay a few years ago... Was about the same time I bought my own MT-32.

https://drive.google.com/file/d/1WstlJe3QgPWf … iew?usp=sharing

Computer in my collection that had too much work done is... Compaq Armada 1573DM!

- Original DSTN panel replaced with an HPA panel
- Left hinge repaired twice
- Front panel replaced twice
- Replaced busted inverter
- Chassis replacement

Reply 23 of 23, by Spazilton

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Perfect, yea they are rough but I should be able to get what I need. I’m going to attempt to make some schematics for the RWI mod. Thank you for the upload!