Kenwood TS-590SG Service Manual page 100

TS-590SG
Pin No. Name I/O
CN62 (to TX-RX unit A/2 CN700)
1 TIF O TX IF output
2 GND - GND
CN63 (to Display unit A/6 CN107)
1 5C O 5V
2 NC - No connection
3 GND - GND
4 MU O MIC up control
5 MD O MIC down control
6 PCTS I RTS signal input from Panel MCU
7 PRXD I Serial data input from Panel MCU
8 PRTS O RTS signal output to Panel MCU
9 PTXD O Serial data output to Panel MCU
10 BKC O Reduced voltage detection interrupt
11 PRST O Reset signal for Panel MCU
12 GND - GND
13 NC - No connection
14 33C O 3.3V (DC/DC)
15 PWS I Power switch input signal
16 GND - GND
17 GND - GND
18 NC - No connection
19 8A O 8V
20 8A O 8V
CN64 (to Display (MIC) unit E/6 CN951)
1 MIC I MIC signal input
2 MSG - MIC GND
3 MCG - GND
4 MU I MIC UP control
5 MD I MIC Down control
6 SS I MIC standby (PTT) control
7 8A O 8V
CN65 (to TX-RX unit A/2 CN3)
1 AF O Audio signal output
2 AFG - Audio GND
CN301 (to Final unit A/2 CN5)
1 DATA O Serial data
2 CLK2 O Serial clock
Over voltage detection
3 BOVR I
Over 19V becomes "H"
4 GND - GND
Power supply switch control signal
5 PSC O
"H" when power is ON
6 GND - GND
7 TH1 I Thermistor detection voltage
8 AMD I Input voltage of amplitude detector
100
TERMINAL FUNCTION
Function Pin No. Name I/O
External antenna tuner (AT-300) tuning
9 TS I/O
start control
10 PHD I Input voltage of phase detector
External antenna tuner (AT-300) IN/
11 TT I/O
THROUGH control
12 ATPWS O AT relay operating stop signal
13 FEN1 O IC1, IC7, IC9 enable
14 FEN2 O IC8, IC10 enable
CN302 (to TX-RX unit A/2 CN2)
1 5A O Non switched 5V
2 NC - No connection
3 GND - GND
4 DGND - Digital GND
5 NC - No connection
6 33C O 3.3V (DC/DC)
7 IDT I Power current voltage
8 IBK O IF blanking
9 TXC O TX ON/OFF
10 VSFM I VSF meter voltage
11 VSRM I VSR meter voltage
12 TCS O VSF/VSR detector time constant control
13 ALM I ALC meter voltage
14 CKY O CKY mute signal
15 IEN3 O IC 13 enable
16 IEN2 O IC11, IC12 enable
17 IEN1 O IC14, IC15 enable
18 DATA O Serial data
19 CLK1 O Serial clock
20 AD1 I No connection
Phone jack detection signal
21 PHDET I
L: No phone jack
22 FSQL I FM squelch voltage
23 FSM I FM S-meter voltage
24 AGCV O AGC control voltage
25 KYS I KEY jack judgement signal
26 DASH I Electronic keyer dash signal
27 DOT I Electronic keyer dot signal
28 KEY I KEY down signal
29 SS I Standby switch
30 RTK I RTTY key signal
31 SQC O SQL control voltage
32 PKP O Inverting PKS control
PTT input for data communication
33 PKSR I
L: PTT ON
34 GND - Analog GND
35 ANO O Packet data output
36 ANI I Packet data input
Function
H: Mute
H: TXB ON
H: Mute
H: Plugged
L: KEY dash
L: KEY dot
L: KEY down
L: TX
H: SQ open
H: PTT ON