Kenwood TH-K4AT Stereo System User Manual


 
104
INTERFACING TO PERIPHERALS
SP/MIC JACK
The SP/MIC jack on the transceiver can be configured
to interface to various kind of peripherals available for
the transceiver, such as a speaker microphone
(SMC-32/ 33/ 34) and PC interface cable (PG-4Y).
Access Menu No. 31 (PC) and select “ON” or “OFF”.
SP/MIC
If you plug the speaker microphone or headset into the
SP/MIC jack, access Menu No. 31 and select “OFF”
(default). To emulate the programmable function keys
using external keys (to control the transceiver), refer to
the circuit diagram below.
5.0 V
10 µF
PTT
LOCK SW
SW-1 3.9k
SW-2 10k
SW-3 27k
SP/MIC jack
SP
MIC
Speaker
Microphone
Note 1
Note 2
2.5 mm
Plug
3.5 mm
Plug