Roland Juno 106 (#4)

Roland Juno 106
Roland Juno 106

Another Juno 106. This one, miraculously, had all of its panel switches working! It had not had such a hard life as many others.  Only one voice chip was failing but we opted to restore all of them. It’s best not to give them a chance to get worse.  I pretty much always do all of them now. Continue reading “Roland Juno 106 (#4)”

Korg Poly 61

Korg Poly 61 synthesizer
Korg Poly 61

This synth sounds FAT. It’s architecture is really simple, but it sounds really good. I can’t think of any 80s polysynth that is better at making fat, Moog-ish leads and basses.  Six voices of a patch like that sounds absolutely huge.  It has the 4 way joystick shared by the whole Korg “Poly” series which effectively gives you an extra (analog-controlled) LFO. The oscillators have a lot of low end and can sound really fuzzy, like Big Muff fuzzy.  It has a simple arpeggiator that allows you to tell it to run your arpeggio up and down the whole keyboard.  If you trigger an arpeggio by playing several notes in different octaves, it will alternate steps above each of them as it arpeggiates, allowing you to make some complex, interesting sequences. Continue reading “Korg Poly 61”

Roland Juno 106 (#2)

Roland Juno 106
Roland Juno 106 with blue LEDs

I missed documenting a couple repairs before I sent them home due to an Iphone/kitten mishap that left me without a way to take photos. Now I’m back with another Juno 106 repair.  I finished repairing this one just as another client dropped off another Juno 106.  They never stop coming! Continue reading “Roland Juno 106 (#2)”

Korg Delta

Korg delta string synthesizer
Korg Delta

The Korg Delta (or DL-50) is a string synth/polysynth hybrid from the late 1970s to early 80s, from the time when every synth company was focusing on those.  I’ve got an Arp Omni 2 and Roland RS-09 of the same era here in the workshop right now and the Delta is my favorite of all three, even just based on its string sounds (to be fair, the RS doesn’t have a “synth” section).   Continue reading “Korg Delta”

ARP Omni 2

Tantalum Capacitors in the Arp Omni 2
Tantalum Capacitors in the Arp Omni 2

This one belongs to Jeff Zeigler, a great musician who also runs the studio Uniform Recording. The ARP Omni 2 is a synth where a lot can go wrong, but it has a very, very repetitive internal architecture so it’s often the same problems over and over– bad logic ICs and bad tantalum capacitors (blue circles in photo above).  That doesn’t mean it’s easy to fix though!

Continue reading “ARP Omni 2”