Boss GM-800 Quick Start Manual page 3

17
USB (MEMORY) port
Connect a USB flash drive. Connect or disconnect the USB flash
drive while the GM-800 is powered off.
* Never turn off the power or remove the USB flash drive while
the access indicator is blinking, or while the screen shows that
an operation is in progress.
* To prevent malfunction and equipment failure, always turn down the volume, and turn off all the units before making any connections.
11
GK IN jack
15
CTL3, 4/EXP1, CTL5, 6/EXP2 jacks
To use these as EXP 1,
EXP 2 jacks
Connect an expression
pedal.
* Use only the specified
expression pedal
(EV-30, FV-500L, FV-
500H, or Roland EV-5:
sold separately). By
connecting any other
expression pedals, you
risk causing malfunction
and/or damage to the
unit.
12
GK OUT jack
19
16
To use these as CTL 3, 4 or CTL 5, 6 jacks
Connect a footswitch.
x
FS-5U 1
1/4" phone type
Ñ
Ò
1/4" phone type
CTL 3
CTL 5
MODE/POLARITY switch
FS-5U FS-6
18
DC IN jack
Connect the included AC adaptor here.
* The DC IN jack also serves as the power switch. The power turns
on when you insert a plug into the DC IN jack, and the power
turns off when you unplug the cable.
19
Ground terminal
Connect this to an external earth or ground if necessary.
13
OUTPUT jacks
Guitar amp Headphones
USB (COMPUTER) port
Computer
x
FS-5U 2
Stereo 1/4" phone
type
Ñ
Ò
1/4" phone type x 2
CTL 4 CTL 3
CTL 6 CTL 5
14
MIDI (OUT/IN) connectors
MIDI keyboard controller
Mixer
17
USB (MEMORY) port
USB flash drive
FS-6
Stereo 1/4" phone Stereo 1/4" phone
type
Ñ
Ò
Stereo 1/4" phone Stereo 1/4" phone
type
CTL 4 CTL 3
CTL 6 CTL 5
FS-7
Panel Descriptions
18
FS-7
type
Ñ
Ò
type
CTL 4
CTL 6
CTL 3
CTL 5
3