Boss VF-1 Owner's Manual page 34

Section 2. Creating Sounds
When controlling the ON/OFF target with
the expression pedal:
fig.2-30c
ON
TARGET MAX
OFF
OFF
TARGET MIN
When the pedal
is fully raised
Expression pedal
* The range available for setting will depend on the selected
target.
* If you set the "TARGET MIN" above the "TARGET MAX,"
the direction of parameter change will be reversed.
* If after setting the "TARGET MIN" and "TARGET MAX"
values you then change the target, the settings may change.
After changing the target, check the "TARGET MIN" and
"TARGET MAX."
The controller that will control the
parameter
Selection for the controller (source) that will control the
target parameter.
The following controllers can be selected as sources.
fig.2-31
ExpPEDAL:
An expression pedal connected to the expression pedal jack
(optional: EV-5 (Roland), FV-300L + PCS-33 (Roland))
CONTROL 1,2:
A foot switch (optional: FS-5U, FS-5L, FS-1 (Roland), DP-2
(Roland) etc.) connected to the CTL 1/2 jack
MIDI-7:
The expression pedal of an FC-200 MIDI Foot Controller
(optional)
MIDI-80:
The control pedal of an FC-200 MIDI Foot Controller
(optional)
34
ON
When the pedal
When the pedal
is advanced halfway
is fully advanced
MIDI-1–31, 64–95:
Control Change messages (MIDI-1–31, 64–95) from an
external MIDI device
The result of operating a foot switch
This setting determines how the target parameter value will
be affected when you operate a momentary-type foot switch
(optional: FS-5U, DP-2 (Roland), etc.).
NORMAL:
The parameter will normally be off (minimum value), and
will be on (maximum value) only while the foot switch is
depressed.
TOGGLE:
The parameter will switch between off (minimum) and on
(maximum) value each time you press the foot switch.
* Set this to "NORMAL" when a latch-type foot switch (sold
separately: FS-5L, FS-1 (Roland) etc.) is connected, or when
something other than a expression pedal is selected as the
controller.
Momentary-type and latch-type foot
switches
If you use a foot switch to switch Effect On/Off
fig.2-70
Latch-type
fig.2-71
Momentary-type
You may use either a momentary-type or a latch-type foot
switch. When using a momentary-type, select "TOGGLE."
When using a latch-type, select "NORMAL." In either case,
Effect On/Off will alternate each time you press the foot
switch.