Kenwood TS-990S Service Manual page 216

TS-990S
Pin No. Name I/O
CN804 (to DC-DC unit A/3 CN190)
1 14V I 13.8V power supply input
2 GND - GND
3 GND - GND
W801 (to Digital unit CN2)
1 X45V2 O X45 version detection
2 X45V1 O X45 version detection
3 14S I 13.8V power supply input
4 14S I 13.8V power supply input
5 NC - No connection
6 GND - GND
7 GND - GND
8 NC - No connection
9 5A I 5V power supply input
Final unit (X45-3880-00 A/2)
Pin No. Name I/O
CN2 (to TX-RX unit A/2 CN800)
1 DRIVE I TX RF signal output (coaxial)
1 FANP2 I Pulse signal when FAN2 operates
2 FAN2+ O Supply FAN2 voltage
3 GND - GND
1 FANP1 I Pulse signal when FAN1 operates
2 FAN1+ O Supply FAN1 voltage
3 GND - GND
CN32 (to AC/DC Power supply)
1 +50V I Supply 50V DC
2 +50V I Supply 50V DC
3 GND - GND
4 GND - GND
CN35 (to DC-DC unit B/3 CN470)
1 GND - GND
2 DATA I Serial data
3 CLK I Serial clock
4 5V O Non switched 5V
5 X45V1 O Version detection signal
6 MFEN3 I Enable signal (IC1)
7 MFEN1 I Enable signal (IC6,7)
The thermistor detection voltage for FAN,
8 TH1 O
power operation
9 33C I 3.3V (DC/DC)
10 X45V2 O Version detection signal
ATDAT1
11 O Serial data for AT unit X53-441 B/2
QS
216
TERMINAL FUNCTION
Function
Function
CN16 (to FAN2)
CN18 (to FAN1)
Pin No. Name I/O
SP-
12 O AT coil selection when 5M band
Q8(5M)
13 FANP1 O Pulse signal when FAN1 operates
14 FANP2 O Pulse signal when FAN2 operates
15 VD O Drain voltage input for meter
16 FAN1+ I Supply AT FAN voltage
17 FAN1+ I Supply AT FAN voltage
18 NC - No connection
19 FAN1- - FAN GND
20 FAN1- - FAN GND
The thermistor detection voltage for FAN,
21 TH2 O
Power operation
22 ID1 O Power current signal
23 TXB I TX 8V
24 MRXC I RX ON/OFF
25 ODP O Over drive protection
26 GND - GND
27 GND - GND
28 GND - GND
CN36 (to DC-DC unit A/3 CN16)
1 14S I Switched 14V
2 GND - GND
3 14V I Non switched 14V
4 GND - GND
J1 (to AT (ANT SW) unit A/2 J7)
1 HFPO1 O RF Power output (Coaxial)
Final (ANT CN) unit (X45-3880-00 B/2)
Pin No. Name I/O
CN815 (to AT (ANT SW) unit A/2 CN37)
1 E_ANT (Coaxial)
CN816 (to AT (ANT SW) unit A/2 CN24)
1 QS O Serial data for AT unit X53-441 B/2 IC8
2 AFEN I Enable signal (IC800)
3 DATA I Serial data
4 CLK I Serial clock
5 NC - No connection
6 14S I Switched 14V
7 14S I Switched 14V
8 NC - No connection
9 33S I 3.3V (DC/DC)
10 33S I 3.3V (DC/DC)
11 NC - No connection
12 GND - GND
13 GND - GND
J800 (to AT (ANT SW) unit A/2 J4)
1 HFPO2 I TX RF signal output (Coaxial)
Function
Function