Terminal Descriptions - Kenwood TK-780 series Instruction Manual

Terminal Descriptions

MIC Modular
NO. Name
1 BLC
2 PSB
3 E
4 PTT
5 ME
6 MIC
7 HOOK
8 CM
Antenna Terminal
50 Ω impedance
Power input connector
Red : Battery-line (13.6V)
Black : GND
External speaker jack
Low impedance(Buffer output)
Description
MIC back light control output Low Impedance
B(13.6V)
ground
PTT signal input. Low : TX.
Microphone ground
microphone input
Hook signal input.
MIC key data output
Impedance
Low Impedance
-
High Impedance
-
1k ohm
High Impedance
Low Impedance
I/O
O
O
-
I
-
I
I
O