Terminal Descriptions - Kenwood TK-290 Instruction Manual

Terminal Descriptions

Universal connector
NO. Name Description
1 SSW EXT/INT SP switch input
2 SP+ BTL output + for external speaker
3 SP- BTL output - for external speaker
4
MSW EXT/INT MIC switch input
5
EMC External microphone input
6 ME External microphone earth
7 PTT PTT input
8 PF Programmable function key input
9 NC Non connect
10 EMC
Earth
11 5M
5V output
12 TXD Serial data output
13 RXD Serial data input
14 NX Non connect
EXT OUT External RF output
15
This terminal has a built in EXIT/INT
Non connect: INT ANT connect:EXT
Antenna Terminal
50 Ω impedance
Battery Terminal
The battery terminal uses a spring plate.
The negative terminal connects to the chassis ground.
The battery is mounted on the rear and upper side of the transceiver using a
sliding mounting method.
1 +
2 -
Back side view
1 2
+ -