Kenwood TS-2000, Service Manual

Page: 123 / 171

124
TS-2000/X
TERMINAL FUNCTION
FINAL UNIT (X45-360 A/2)
CN No. Pin No. Name I/O Function
CN5 1 14S O Switched 14V for external antenna
tuner option
2 AGND - Analog GND
3 TT I/O External antenna tuner (AT-300)
in/through control
4 TS I/O External antenna tuner (AT-300)
tuning start control
5 GND - GND
CN9 1 14V O Constantly 14V
2 GND - GND
3 GND - GND
4 SPG - GND for internal speaker
5 SP I Audio output for internal speaker
6 14AG O GND for audio IC
7 14AF O Power supply for audio IC
8 14S O 14V when the power switch on
9 14S O 14V when the power switch on
10 8A O 8V when the power switch on (analog)
11 8A O 8V when the power switch on (analog)
12 5A O 5V when the power switch on (analog)
13 HFTXB I HF-50MHz TXB
14 14TXB I 144MHz TXB
15 VSF O Forward wave detection voltage
of HF-144MHz VSWR
16 VSR O Reflected wave detection voltage
of HF-144MHz VSWR
17 GND - GND
18 NC - NC
CN10 1 GND - GND
2 TT I/O External antenna tuner (AT-300)
in/through control
3 TS I/O External antenna tuner (AT-300)
tuning start control
4 PSC I Power on switch control.
“H” for power on
5 BOVR O Over voltage detection signal, if the
power supply voltage increases more
than approx. 19V.
Then BOVR becomes “L”
6 THHF O Thermistor detection voltage.
This voltage controls fan speed
7 PHD O Output voltage of phase detector in
Filter unit
8 AMD O Output voltage of amplitude detector
in Filter unit
CN No. Pin No. Name I/O Function
9 14D O Constantly 14V for digital circuit
10 8D O 8V when the power switch on (digital)
11 10A O 10V when the power switch on (analog)
12 8A O 8V when the power switch on (analog)
13 DATA I Serial data
14 CLK I Serial clock
15 REN1 I Enable for IC205
16 REN2 I Enable for IC801, 802, 803
CN15 1 NC - NC
2 GND - GND
3 50RL O 50MHz TX LPF relay control.
“H” for LPF active
4 10RL O 10MHz TX LPF relay contro.
“H” for LPF active
5 28RL O 28MHz TX LPF relay control.
“H” for LPF active
6 7RL O 7MHz TX LPF relay control.
“H” for LPF active
7 21RL O 21MHz TX LPF relay control.
“H” for LPF active
8 14RL O 14MHz TX LPF relay control.
“H” for LPF active
9 4RL O 3.5MHz TX LPF relay control.
“H” for LPF active
10 2RL O 1.8MHz TX LPF relay control.
“H” for LPF active
11 144RL O 144MHz TX/RX relay control. “H” for TX
12 NC - NC
CN16 1 VSF I Forward wave detection voltage
of HF-50MHz, comes from Filter unit
then combine with 144MHz VSF
2 VSR I Reflected wave detection voltage
of HF-50MHz, comes from Filter unit
then combine with 144MHz VSR
3 PHD I Output voltage of phase detector in
Filter unit, which passes through Final
unit then goes to control unit
4 AMD I Output voltage of amplitude detector
in Filter unit, which passes through
Final unit then goes to control unit
5 5A O 5V when the power switch on (analog)
6 HFRL O HF TX/RX antenna changeover relay
control, “H” for TX
7 ATS O Internal antenna tuner in/through
changeover relay control, “H” for
antenna tuner input