User Manual

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Owner’s manual
Arpeggiator settings
The ARP 3620 keyboard unit is equipped with an internal arpeggiator.
When you hold down two or more keys, the arpeggiator plays an arpeggio (broken
chord) or a previously recorded arpeggio pattern in synchronization with the LFO
tempo. To record and play back an arpeggio pattern, proceed as follows.
Recording an arpeggio pattern (SEQ REC)
1. On the panel of the ARP 3620, set the ARPEGGIATOR selector to “SEQ REC.”
2. When you play the keyboard in this state, notes are recorded as an arpeggio
pattern in the order in which you play them.
Tip:
When you press and release a key, the arpeggio pattern advances by one step.
By pressing the MOMEN.SW while holding down a key, you can enter a tie. By
pressing the MOMEN.SW while not holding down a key, you can enter a rest.
Tip:
By pressing the MOMEN.SW several times, you can enter the corresponding
number of consecutive ties or rests.
The arpeggio pattern is remembered while the power is on, but is lost when
you turn off the power.
Playing back the arpeggio pattern (SEQ PLAY)
1. After you have recorded an arpeggio pattern, set the ARPEGGIATOR selector
to “SEQ PLAY.”
2. When you play the keyboard, the arpeggio pattern is played back based on that
note.
When power is cycled, the SEQ REC memory is cleared, so when the
instrument is turned on, you will have to record a new sequence in order to
play back.
Tip:
This unit’s arpeggiator starts playing from the beginning of the pattern each
time a note-on occurs.
Tip:
The gate time of the arpeggiator is fixed (50%).
Voice assign mode settings
The ARP 3620 keyboard unit will output two pitch CV signals according to your
performance, and these can be used in a variety of ways. These two pitch CV
signals are respectively referred to as KBD CV-1 and KBD CV-2, and are sent via the
DIN cable to the ARP 2600 FS main unit.
KBD CV-1 is the same as “KBD CV” on the ARP 2600 FS main unit’s panel, and
is internally pre-connected to VCO1–3, but KBD CV-2 is located on the panel as a
modulation source that is not internally connected. KBD CV-2 is the same as the
UPPER VOICE output of the ARP 3620 keyboard unit’s panel.
When you press one key, KBD CV-1 and KBD CV-2 output the same voltage, but
when you press two or more keys, these two pitch CV outputs will be different
voltages. This unit lets you switch between using these pitch CV outputs in two
different ways (voice assign modes).
Normal mode (default)
This is the factory-set mode. When two or more keys are pressed simultaneously,
the lowest note is output as KBD CV-1 and the highest note is output as KBD CV-2
(UPPER VOICE). To specify this mode, hold down the three keys C3, D3, and E3
and turn on the power of the ARP 2600 FS main unit.
Original mode
This mode reproduces the operation of the original ARP 3620 keyboard unit. This
is the same as normal mode in that the lowest note is output as KBD CV-1 and the
highest note is output as KBD CV-2 (UPPER VOICE), but differs in that the lowest
note and highest note continue being held until the gate signal turns on (the first
key is played). To specify this mode, hold down the two keys C#3 and D#3, and
turn on the power of the ARP 2600 FS.
After changing this setting, do not turn off the power for several seconds.
Doing so might damage the data, causing malfunctions.
Tip:
The voice assign mode function setting is remembered even after the power is
turned off.