interesting... can you dump this 2.00 rom?
maybe open the unit and take a pic of the mobo to see what is going on

maybe you have a version right on the transition period. but sounds odd to me. pics would be great!

Unfortunately I don’t have the tools or know how to dump the roms 😒

I’ll try to get some pictures this weekend.

I opened it up and got some pictures.
Serial: Z940799
Model: DM-32N-7

Just checked and it has the demo songs. From what I understand only the new version has those?

So what do you make of this?

well the space is there on the pcb for the jack. its definitely a 'new' mt32, not 'old' mt32. for whatever reason they did not solder the jack on.

BloodyCactus wrote on 2020-06-26, 19:55:

well the space is there on the pcb for the jack. its definitely a 'new' mt32, not 'old' mt32. for whatever reason they did not solder the jack on.

The casing itself is the 'old' version, hence no jack.

Never seen that before. ROM version 2 is for MT-32 "new". Which is what that circuit board is. But it is in an MT-32 "old" case and the headphone jack is not installed.

yawetaG wrote on 2020-06-27, 09:53:

BloodyCactus wrote on 2020-06-26, 19:55:

well the space is there on the pcb for the jack. its definitely a 'new' mt32, not 'old' mt32. for whatever reason they did not solder the jack on.

The casing itself is the 'old' version, hence no jack.

right. probably right in the transition period and used up old stock.

So, in theory, you could just drill a hole in the rear and solder on a jack? You would then have a complete MT-32 "new" with its headphone jack.

jesolo wrote on 2020-06-27, 19:26:

So, in theory, you could just drill.a hole in the rear and solder on a jack? You would then have a complete MT-32 "new" with its headphone jack.

Quite likely.