Terminal Function - Kenwood TH-K4AT Service Manual

CN No. Pin No. Pin Name
TX-RX UNIT (A/3) : TX-RX↔VOL/ENC
CN1 1 GND GND
2 Vol-OUT RX audio volume output
3 Vol-IN RX audio volume input
4 EN2 Encoder 2
5 GND GND
6 EN1 Encoder 1
TX-RX UNIT (A/3) : TX-RX↔Internal speaker
CN2 1 SPK Internal speaker audio
2 SPG Audio ground
TX-RX UNIT (A/3) : TX-RX↔TX-RX UNIT (B/3) : 10KEY
CN6, 1 PTT PTT
CN7 2 KIN4 Key matrix input
3 KYO2 Key matrix output (MONI key)
4 KYO1 Key matrix output (LAMP key)
5 BL LCD backlight control
6 GND GND
TX-RX UNIT (A/3) : TX-RX↔TX-RX UNIT (C/3) : PTT
CN8, 1 KIN1 Key matrix input
CN9 2 IM Internal microphone
3 KYO3 Key matrix output
4 8M 8V power supply
5 KIN4 Key matrix input
6 MIG Microphone ground
7 LAMP Key illumination control
8 GND GND
9 KYO0 Key matrix output
10 KIN2 Key matrix input
11 KYO1 Key matrix output
12 KIN0 Key matrix input
13 KYO2 Key matrix output
14 KIN3 Key matrix input

TERMINAL FUNCTION

Function
TH-K4AT/K4E
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