Boss DR-110 Installation Manual page 7

Power connection and BD trigger:
Connect the 5V and 15V wires to the wire jumper shown. It's easier to solder wires to the jumper
than to the leg of the capacitor.
Lift the leg of R68 pointing upwards in direction of the ribbon wire.
Solder a wire to the place where the lifted leg of the resistor was located. This wire gets soldered to
switch 2 pin 1.
Solder a wire and P5 from the Unipulse board to the lifted leg of R68. The other end of the wire
gets soldered to switch 2 pin 2.
Switch 1 and MIDI jack:
Solder a wire from switch 1 pin 2 to R12. Solder the Start wire from Unipulse to switch 1 pin 3.
Solder the MIDI 1 wire from Unipulse to the tip connection of the TRS jack.
Solder the MIDI 2 wire from Unipulse to the ring connection of the TRS jack.