Adjustment points, Terminal function, Th-k2at/k2e/k2et – Kenwood 144MHz FM TRANSCEIVER K2E User Manual
Page 43: Adjustment / terminal function
TH-K2AT/K2E/K2ET
43
ADJUSTMENT / TERMINAL FUNCTION
Adjustment points
TX-RX unit (A/3)
Component side view
J2
DC IN
J3
MIC
J4
SP
VR1
VR5
VR6
LV
B
LCD
ANT
BTEMP
GND
SET
TX-RX UNIT (A/3)
Component side view
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
CN2
1
SPK
Internal speaker audio
2
SPG
Audio ground
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
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
CN No. Pin No. Pin Name
Function
TX-RX UNIT (A/3) : TX-RX↔VOL/ENC
TERMINAL FUNCTION
TX-RX UNIT (A/3) : TX-RX↔Internal speaker
TX-RX UNIT (A/3) : TX-RX↔TX-RX UNIT (B/3) : 10KEY
TX-RX UNIT (A/3) : TX-RX↔TX-RX UNIT (C/3) : PTT
VR1 : TX frequency
VR5 : MAX DEV
VR6 : DCS modulation valance
LV
: VCO lock voltage terminal