PANEL DESCRIPTIONS
1. Unit Connectors
Here is where you connect units (such as those
in the GR series, VG series, or GI-10) capable of
being played with a divided pickup (GK-2A;
available separately). Use the 13-pin special-
ized cable (C-13D) supplied with the US-20.
UNIT A Connector
The unit connected to this connector can be
played when [A] has been selected with the
[A/B] pedal switch on the top panel.
UNIT B Connector
The unit connected to this connector can be
played when [B] has been selected with the
[A/B] pedal switch on the top panel.
2. GK IN Connector
Connect a divided pickup (GK-2A; available
separately) to this connector using the 13-pin
specialized cable (e.g., C-13A, C-13C, C-13D)
or the GK cable (GKC-3, GKC-5; available sep-
arately) supplied with your GR series synth or
other unit.
3. [A/B] Pedal Switch
This is the pedal switch that allows you to
select which device is to be played, either the
one connected to the UNIT A connector, or the
one connected to UNIT B.
4. [BOTH] Pedal Switch
When switched ON, this pedal allows you to
play both of the devices connected to the Unit
connectors at the same time.
MAKING
THE CONNECTIONS
After the GK-2A has been installed properly
on your guitar, make the connections as shown
below. For details on how to set up the GK-
2A, please read the GK-2A’s owner’s manual.
* Make sure that all the units are switched off before
making connections. If you make connections
without switching off the units, speakers or other
units may be damaged.
* Be sure to use only the supplied cables (e.g., C-
13A, C-13C, C-13D) or the GK cables (GKC-3,
GKC-5; available separately). Using any other
cables can cause problems. Also, make sure that
the combined length of the cable run, stretching
from the GK-2A through the US-20 to Unit A (or
B), does not exceed 10 meters. For this reason, the
C-13B (10 m) and the GKC-10 (10 m) cable cannot
be used, because it is too long for proper operation.
* Power to the US-20 is supplied by the unit con-
nected to the UNIT A connector, through the 13-
pin specialized cable. The power to the GK-2A is
also supplied from UNIT A, via the US-20.
Therefore, if you connect a device only to the UNIT
B connector, neither the US-20 nor the GK-2A will
work. To use only one device, connect it to the
UNIT A connector.
2
3
4
1
Guitar with GK-2A
US-20
GR series
VG series
2
