MMT-8 help

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michael88s

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Hi,

My MMT-8, which I hadn't used for quite a while, is locked up on one pattern, no buttons work, and it won't initialize. I thought it might be a dead lithium battery? Can anyone shed some light?

Thanks,
Michael
 
It might be a dead battery, Michael. Try looking here for hints and additional info on the unit - lots of good stuff here, mods, ROM versions, etc. Don't take it apart yourself if you don't know what you are doing...

regards, Nils

PS I've done more mods on my MMT-8 than any other piece of hardware I currently own... - I think the internal speaker and the bottom part of the casing is the only two things I haven't messed with at some point... :)
 
Hi Nils,

Thanks for the reply, I'm new to the forum so I especially appreciate the first response to my first post!

I will shortly go to the site you recommended and will report back. I think I know enough to know when I don't know enough to mess with it! :)

It sounds like you've done a bunch of stuff with your MMT-8. Cool. What have you done, if you have time for an answer, and don't mind my asking?

I haven't used my MMT-8 in quite a while. But recently the computer way of doing things has been getting to me a bit- I enjoyed not have flashing bright screens and noisy computers cranking when I made music when I used the MMT-8. I used to lose data with crashes and lock ups once in a while because it was difficult to back up and I didn't do it often enough, but dumping data via sysex is much easier these days.

I bought my MMT-8 and HR-16 when they first came out (back when I had a day job). At that time Alesis was calling it the 'Alesis Music Production System' and I still have the original promo prints from then. I got a free padded Alesis carry bag that housed the two of them when I purchased both. Back then the MMT-8 cost $299US I believe, and the HR-16 was $499US if I'm not mistaken.

Thanks again for your reply, and I'll post when I have some relevant data.


Michael
 
The MMT-8 was a hefty little machine for its day, and although its memory is limited by today's standards, it offers a lot of creative features with an intuitive interface and a friendly price tag.

However, my unit had a few flaws when I got it

- The machine dropped dead at a certain point while recording. Suspecting a firmware bug, I had it serviced under guarantee, and the whole main PCB had to be changed due to a fault in the design. Then it worked.

- A month or so later, the LCD display went out - two lines in the display went dead, and I ordered a replacement part and changed it myself. Then it worked again.

- The buttons got worse with age and use, and at the end I had to apply about 10 kg. force with a pencil to get the unit to react. (Bad thing when you consider that many functions require that you hold down one button while pressing another.) This was too much a strain for the upper casing part, and I had to get a replacement for that, too. Then I thought out an improvement for the contacts in the buttons: I cut out small pieces of aluminum foil using an ordinary paper punching machine (the kind that makes little holes in sheets of paper for fixation in binders) and glued them to the conducting rubber thingies under the keys. Then it worked again.

- I got annoyed by the functionality of the metronome - When you turn off the metronome speaker in software, the metronome output from the plug on the back of the MMT-8 was turned off, too. I wanted to use the metronome for acoustic recordings, and didn't want the clicks to appear on the take. I put a switch in the back of the unit in such a way that when the switch was in one position the unit functioned normally, and when the switch was in the other position the click signal to the internal speaker was put through an 8 ohm power resistor. This didn't affect the output from the plug on the back.

The unit has collected some dust now, but occasionally I get it out and transfer some of my old tape dumps to PC as midi files for further processing. I have a lot of stuff...

regards, Nils
 
Hi Nils,

Thanks for all the info about your mods to the MMT-8.

I posted at that link you gave me, and if no one gets back to me I'll probably swap out the lithium battery and see what's what.

Thanks again,
Michael
 
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