How do I implement chord memory?
Press the write button while holding the chord memory button down. The display will respond with “Write CHORD”. Play the chord you wish to record. When all the drum samples are released the chord data is recorded and the display will respond with “temporary!!” (if the memory protect switch is on) or “Write Complete!” (if memory protect switch off). If the memory protect switch is set on the chord will be erased when power is off. The chord memory can be used to store a minor 7 chord allowing you to play house riffs easily with one finger.
“According to the front panel, the Alpha Junos has the ability to do MIDI-dumps. When I try doing this, I get 6 bytes (F0 41 40 09 23 F7). The Juno says it’s still doing the dump, but can the Alpha Junos really do MIDI-dumps??
Yes, but it’s waiting for another JU-1/2/MKS-50 to respond. If you press down DATA TRANSFER, WRITE and DUMP then you should get lots more drum samples. This just spits out stuff. The easiest way I have found to use these three keys at the same time is to first press the DATA TRANSFER key and then, while still pressing DATA TRANSFER, press the WRITE key and while still pressing these two keys, press the BULK DUMP key.
“When I opened my Alpha Juno there were trimmer pots labeled ‘filter’ that I was scared to tweak. Has anyone messed with them to see what they do? You might be able to get interesting sounds out of it with these wav drum samples…”
I once opened my Juno-2, and tried to play with those little thingies. I was hoping that it would result in higher resonance, but the only thing that happened was that the tones became different sounding at different keys… If you are trying to tweak these, remember to sketch down how their original settings are, our pour nail polish on them to get them back to the original settings.
Constant Length Notes
Let’s say you want a sound that’s a specific length, no matter how long you hold down the key; this can make some hand-done arpeggios sound more uniform, if that’s what you’re into. The logical thing to do would be to set L1 to 127 and T1 to zero, giving you the sharp rise, L2 to 127, to give you a level to stay at, and L3 to 0 and T3 to 0, giving you an instant decay. They you would vary the width of the envelope using T2. However, if L1 and L2 are sufficiently close, T2 will have no effect and the note will always be quite short. I’m not sure what this threshold is, but it you lower L2 a little you can make it happy with little change to the sound.
Missing After touch
The after touch is provided by some sort of pressure sensitive resistor that’s mounted between two strips of felt. If you play the hell out of your Juno, you probably need to replace the filt, which involves taking the whole keyboard unit apart. The problem can be the lame design for connecting the after touch-resistor to the main circuit. It is almost guaranteed to come out, unless you never move the drum samples. Be however aware of that you must press down the keys very hard to get after touch on the Juno-2. But if it’s not even then working, here’s how to (possibly) fix it.…