Roland SA-300 Stereo Amplifier User Manual


 
11
Names of Things and What They Do
4. ANTI-FEEDBACK SWEEP Jack
You can connect a momentary-type foot switch (optional
BOSS FS-5U or FS-6) and operate the automatic feedback
frequency detection with your foot.
Holding down the foot switch for one second or longer
starts the automatic feedback frequency detection.
Based on the results of this analysis, the microphone and
environmental characteristics are compensated for
automatically, making it difficult for feedback to crop
up.
* Set the FS-5U’s polarity switch as shown below.
fig.01-10
* If using a FS-6 switch, set the MODE and POLARITY
switches as shown below.
fig.01-11
5. EXP PEDAL/REMOTE SW Jack
You can connect an expression pedal or remote switch
here.
EXP PEDAL
You can connect an expression pedal (optional EV-5,
etc.) and use it to control the MASTER volume level.
* Set the minimum volume on the expression pedal to the
“MIN” position. Unless the minimum volume is set to
“MIN,” the expression pedal will not work correctly.
REMOTE SW
Using a connection cable to connect foot switches
(optional BOSS FS-5L and FS-5U), you can then use the
FS-5L (latch type) switch to switch the mute on and off,
and use the FS-5U (momentary type) switch to turn on
and off the effects (reverb or delay).
Mute On/Off
When the FS-5L’s indicator is lit, the mute function is
switched on, and the output from the speakers and
headphones, as well as from LINE OUT and STEREO
LINK OUT is muted.
Effect On/Off
The effect is alternately switched on and off each time
you press the FS-5U.
* When connecting only one foot switch using a connection cable
with a 1/4-inch phone (mono) plug, only the mute can be switch
on and off. In that case, connect the switch with an FS-5L.
* When an FS-5U (momentary type) switch is used for
switching the mute on and off, the mute is switched on only
while the switch is held down.
fig.01-04
* If using a FS-6 switch, set the MODE and POLARITY
switches as shown below.
fig.01-05
FOOT SW (FOOT SWITCH)