Tx-Rx (Nb) Unit (X57-785X-Xx B/2) - Kenwood TS-590S Service Manual
Hf / 50mhz all mode transceiver
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Also See for TS-590S:
- Instruction manual (92 pages) ,
- User manual (76 pages) ,
- Reference manual (32 pages)
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Pin No.
Name
I/O
CN300 (to Control (LO) unit B/3 CN508)
1
LO2
I
2nd local signal (Coaxial)
CN400 (to Control (LO) unit B/3 CN601)
1
LO3
I
3rd local signal (Coaxial)
CN600 (to Control unit A/3 CN61)
1
RIF
O
RX IF output
2
GND
-
GND
CN650 (to TX-RX (NB) unit B/2 CN663)
1
14S
O
Switched 14V
2
NC
-
No connection
3
–6V
I
–6V (DC/DC)
4
DCGND
-
DC/DC GND
5
GND
-
GND
6
IBK
O
IF blanking
7
1STIF
O
1st IF switch signal
8
NBL
O
Noise Blanker level
9
8A
O
8V (DC/DC)
10
BLNK
I
IF mute signal
CN674 (to Final unit A/2 CN667)
1
NBIF
O
NB IF output (Coaxial)
CN700 (to Control unit A/3 CN62)
1
TIF
I
TX IF input
2
GND
-
GND
CN800 (to Final unit A/2 CN2)
1
TXRF
I
TX RF output (Coaxial)
J1 (EXT.SP)
4
GND
-
GND
5
PH2
O
AF output for external speaker
6
SP
I
Internal speaker AF signal
J2 (ACC2)
1
NC
-
No connection
2
RTTY
I
RTTY key input
3
ANO
O
Packet RX signal output
4
GND
-
GND
5
PSQ
O
Squelch control signal
6
NC
-
No connection
7
NC
-
No connection
8
GND
-
GND
PTT line control for data communication
9
PKS
I
H: PTT ON
10
NC
-
No connection
11
ANI
I
Packet data input
12
GND
-
GND
13
SS
I
Standby switch
J3 (REMOTE)
1
SPO
O
Speaker output
TERMINAL FUNCTION
Function
H: Mute
H: 73.095MHz
H: Mute
SQL tight: Hi-Z
L: TX
Pin No.
Name
I/O
2
COM
-
Common terminal (relay)
3
SS
I
Standby switch
4
MKE
-
Make terminal (relay)
5
BRK
-
Break terminal (relay)
6
ALC
I
ALC voltage
7
TX14V
O
TX 14V
J4 (KEY)
1
GND
-
GND
2
KEY
I
KEY down signal input
3
GND
-
GND
10
NC
-
No connection
11
KYS
I
KEY jack judgement signal
J5 (PADDLE)
1
GND
-
GND
2
DOT
I
Dot signal input
3
DASH
I
Dash signal input
4
KYS
I
KEY jack judgement signal
5
KYS
I
KEY jack judgement signal
6
NC
-
No connection
7
NC
-
No connection
8
NC
-
No connection
9
NC
-
No connection
J100 (RX ANT)
1
RXANT
I
RX antenna input (Coaxial)
J800 (DRV)
1
DRV
O
Drive output (Coaxial)
TX-RX (NB) UNIT (X57-785X-XX B/2)
Pin No.
Name
I/O
CN663 (to TX-RX unit A/2 CN650)
1
14S
I
Switched 14V
2
NC
-
No connection
3
–6V
O
–6V (DC/DC)
4
DCGND
-
DC/DC GND
5
GND
-
GND
6
IBK
I
IF blanking
7
1STIF
I
1st IF switch signal
8
NBL
I
Noise blanker level
9
8A
I
8V (DC/DC)
10
BLNK
O
IF mute signal
CN667 (to TX-RX unit A/2 CN674)
1
NBIF
I
NB IF input (Coaxial)
TS-590S
Function
L: TX
Function
H: Mute
H: 73.095MHz
H: Mute
87
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