Kenwood TS-2000 Service Manual page 126

CN No. Pin No. Name I/O
34 MRBK O Main receive blanking control.
"H" for blanking
35 AGCR O AGC reference voltage
36 BATT I Back up battery input for MODEM
CN7 1 10A O 10V (PLL power supply)
2 PDA O PLL serial data
3 PCK O PLL serial clock
4 DEN3 O DDS IC (IC407) enable
5 DEN2 O DDS IC (IC406) enable
6 DEN1 O DDS IC (IC408) enable
7 PEN6 O PLL IC (IC402) enable
8 PEN5 O PLL IC (IC401) enable
9 PEN4 O PLL IC (IC412) enable
10 PEN3 O PLL IC (IC410) enable
11 PEN2 O PLL IC (IC414) enable
12 PEN1 O PLL IC (IC409, 411) enable
13 PENA O Serial/parallel IC (IC404) enable
14 HFTXC O reserved
15 VTXC O VHF-TX control signal,
"H" when VHF TX is active
16 UTXC O UHF-TX control signal,
"H" when UHF TX is active
17 VRXC O VHF-RX control signal,
"H" when VHF main RX is active
18 URXC O UHF-RX control signal,
"H" when UHF main RX is active
19 UL I PLL unlock detection, "L" active
20 GND - GND
CN503 1 MIC I Mic signal input
2 MSG - Mic GND
3 MCG - GND
4 MU I Mic up signal
5 MD I Mic down signal
6 SS I Standby switch
7 8A O 8V (EXT Mic)
CN504 1 PRGS I "L" for MAIN CPU write
2 12OP I "H" when 1.2GHz unit installed
3 GND - GND
4 VO I VS-3 audio output
5 GND - GND
6 NAR O "H" for data input enable to VS-3
7 RST O VS-3 reset signal
8 VCS O VS3 voice synthesizer start signal
9 GND - GND
10 DRM O Audio in for DRU-3A
11 GND - GND
TERMINAL FUNCTION
Function CN No. Pin No. Name I/O
CN505
TS-2000/X
12 DRO I Audio out from DRU-3A
13 GND - GND
14 EOM I End of message from DRU-3A.
"H" for end
15 DREN O Enable for DRU-3A voice recording
unit
16 STS O Start switch, active "H". When START
is "H", CPU get this signal then send
back STS to IF unit to turn ON IC10,
11, 604.
17 AMU O Audio Mute, Active "H" to mute SP1/
SP2 output
18 GND - GND
19 MANO O Main RX AF signal from DSP
20 GND - GND
21 SANO O Sub RX AF signal from DSP
22 GND - GND
23 PKD I Packet (modulation) data, packet
modulation data for DSP
24 GND - GND
25 SS I Standby switch, active low to TX
26 PKSA I Packet standby switch, active "L" to
packet TX
27 RTK I RTTY keying, active "L" to frequency
shift
28 SPS I Speaker switch, "OPEN" when SP2
is active
29 RXD1 I Level converted (5V) RXD
(J6 : REMORT PANEL)
30 TXD1 O Level converted (5V) TXD
(J6 : REMORT PANEL)
31 START I Active "H" when data comes from
REMOTE PANEL or PC
32 RXD2 O Level converted (5V) RXD
(J5 : RS-232C)
33 RTS2 I Level converted (5V) RTS
(J5 : RS-232C)
34 TXD2 I Level converted (5V) TXD
(J5 : RS-232C)
35 CTS2 O Level converted (5V) CTS
(J5 : RS-232C)
36 GND - GND
1 MAF O Main audio (SP1) output
2 GND - GND
3 SAF O Sub audio (SP2) output
4 GND - GND
Function
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