32
Front Panel Controls & Switches
ON/OFF Switch
Press and hold this switch for one second to turn
the transceiver ON or OFF.
USB Jack
Connect a USB A type keyboard or mouse. They
can be used to select items on the screen or to en-
ter characters.
KEY
Connect a telegraph key or electronic keyer paddle
to use for CW mode operation.
When connecting a key or other device to
the KEY jack, use only a 3-contact (“ste-
reo”) 3.5 mm phone plug; a 2-contact plug
will place a short between the ring and the
(grounded) shaft of the plug, resulting in a
constant “key-down” condition.
DOT
DASH
COMMON
KEY
NC
GND
Key-up voltage is approxi3.3 V
DC, and key-down current is approximately
1 mA.
PHONES Jack
Connect headphones to this standard ϕ6.3 stereo
jack.
Inserting a headphone plug into this jack will deacti-
vate the internal and external speakers.
When wearing headphones, we recommend
that you turn the AF Gain levels down to
their lowest settings before turning power
ON, to minimize the impact on your hearing
caused by audio “pops” during switch-on.
AUDIO (MAIN)
AUDIO (SUB)
GND
MIC
This 8-pin jack accepts input from a microphone uti-
lizing the traditional YAESU HF transceiver pinout.
SW1
+5V
SW2
FAST
GND
PTT
MIC GND
MIC
Refer to the “Scope display setting”
(page 24).
