Kenwood TK-80 Service Manual page 58

CN No. Pin No. Pin Name
CN6 3
4
5
6
7
8
9
10
11
12
13
14
15
16
TX-RX UNIT (X57-4660-21)
CN No. Pin No. Pin Name
CN1 Coax.
CN2 Coax.
CN3 Coax.
CN9 1
2
CN10 1
2
CN11 1
2
3
CN12 1
2
3
4
5
CN13 1
2
3
4
CN14 1
2
3
4
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TERMINAL FUNCTION
Function
5A 5V
14S 14V (switched)
ATI Preset AT install. Low: Install
SPED Motor speed control
APRE Preset control select
ATA AUTO/THRU switch
PR11 Motor rotate direction control 1
PR12 Motor rotate direction control 2
PR21 Motor rotate direction control 3
PR22 Motor rotate direction control 4
ATG AT GND
VREF AT reference voltage (5V)
POD2 VC102 position detection signal
POD1 VC101 position detection signal
Function
RAT Receive signal input
LO1 LO1 input 73.145~103.045MHz
LO2 LO2 input 62.35MHz
CAR CAR input 10.695MHz
GND GND
SP Speaker output
SPG Speaker GND
PH1 Headphone output 1
PH2 Headphone output 2
PHG Headphone GND
MIC MIC signal input
MICG MIC GND
NC No connection
SPO Speaker output
SPOG Speaker GND
AF Audio
AFG Audio GND
MIC MIC signal input
MICG MIC GND
DGND Digital GND
RTS PC I/F (request to send)
CTS PC I/F (clear to send)
RXD PC I/F (RX data)
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CN No. Pin No. Pin Name
CN14 5 TXD PC I/F (TX data)
6 AMUT Audio mute
7 VAF AF volume voltage
8 SIDE Sidetone
9 BZ Beep
10 BSY Busy signal
11 CKY Keying control
12 RXC Receive control
13 TXC Transmit control
14 SM Signal meter voltage
15 VSFM Forward wave voltage
16 VSRM Reflected wave voltage
17 FEN3 Shift register 3 enable
18 FEN2 Shift register 2 enable
19 VEN1 Electronic volume control enable
20 UCK Shift register, electronic volume
control clock
21 UDA Shift register, electronic volume
control data
22 FEN1 Shift register 1 enable
23 KYS Key jack input. High when jack is inserted
24 KEY CW keying. High: Key down
25 SS Standby switch
26 GND GND
CN15 1 14S 14V (switched)
2 8A 8V
3 14AF 14V (for audio IC)
4 14AG 14V (for audio IC) GND
5 TXB 8V when transmitting
6 VSR Reflected wave voltage
7 VSF Forward wave voltage
8 GND GND
CN19 Coax. DRV Drive output
W1 1 NBI NB amplifier signal input
2 NBG NB GND
J1 1 DGND Digital GND
2 TXD PC I/F (TX data)
3 RXD PC I/F (RX data)
4 CTS PC I/F (clear to send)
5 RTS PC I/F (request to send)
6 NC No connection
TK-80
Function
57