Kenwood TK-80 Service Manual page 59

TK-80
CN No. Pin No. Pin Name
J2 1 NC
2 RTK
3 ANO
4 GND
5 PSQ
6 PKS
7 PKD
8 PKDG
J3 RELAY
J4 ALC
J5 EXT. SP
J6 KEY
CN500 1 GND
2 ABSL
3 DEN2
4 CASL
5 DEN1
6 NC
7 PLS
8 PEN1
9 PDA
10 PCK
11 ULK
12 VB3
13 VB2
14 VB1
15 VDLY
16 GND
CN501 Coax. LO1
CN502 Coax. LO2
CN503 1 CAR
2 GND
W1 1 NBI
2 NBG
LCD ASSY
CN No. Pin No. Pin Name
CN1 1 DGND
2 VAF
58
TERMINAL FUNCTION
Function
No connection
RTTY keying line
Received data output
GND
Squelch control output
DATA terminal SEND key
(Low: Transmission microphone mute)
Transmission data input
Transmission data GND
Linear relay control
ALC voltage
External speaker
CW key input
GND
DDS2 register selection
DDS2 enable
DDS1 & PLL register selection
DDS1 enable
No connection
Keying line switch
PLL enable
PLL data
PLL clock
Unlock detection signal. Low: Unlock
VCO3 selection signal
VCO2 selection signal
VCO1 selection signal
Delay volume voltage
GND
LO1 output 73.145~103.045MHz
LO2 output 62.35MHz
CAR output 10.695MHz
GND
NB amplifier signal input
NB GND
Function
Digital GND
AF volume voltage
CN No. Pin No. Pin Name
CN1 3 VCL Clarifier volume voltage
4 VSQL Squelch volume voltage
5 SS Standby switch
6 MU Microphone UP switch
7 MD Microphone DOWN switch
8 LDA LCD control data
9 LCK LCD control clock
10 PSW High when the power switch is on
11 EDP1 Encoder pulse
12 EDP2 Encoder pulse
13 K0 Key matrix
14 K1 Key matrix
15 K2 Key matrix
16 K3 Key matrix
17 K4 Key matrix
18 SO Key matrix select
19 LBLK LCD blanking
20 LEN1 LCD control enable
21 14S 14V (switched)
22 8A 8V
23 5A 5V
24 5C 5V for power switch
25 DGND Digital GND
26 RAF Reference audio voltage
CN2 1 MIC MIC signal output
2 MICG MIC GND
3 AGND Analog GND
4 SPO Speaker output
5 SPOG Speaker GND
J1 1 MIC MIC signal output
2 SS Standby switch
3 DOWN Microphone DOWN
4 UP Microphone UP
5 8A 8V
6 SPO Sepaker output
7 MICG MIC GND
8 GND GND
Function