Kenwood TK-690B, Service Manual

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62
TK-690H ( B )
Connector Terminal Terminal
I/O Terminal Function
No. No. Name
CN1 1 DO I Transmission drive input.
To Coaxial connector.
TX-RX
unit
CN4 1 E – Earth.
CN5 1 +B I Power supply input (13.4V
±
15%).
CN6 1 RA O Receiver signal output.
To Coaxial connector.
TX-RX
unit
W4 1 E – Earth.
To 2 +B O Power supply output (13.4V
±
15%).
Control 3 +B O Power supply output (13.4V
±
15%).
unit
W5 1 DB O Transmission drive control
To voltage output (APC).
TX-RX 2 E – Earth.
unit 3 8R I 8V input during reception.
4 8T I 8V input during transmission.
5 PC I TX power control signal input.
CN104 1 RA I Receiver signal input.
To Coaxial connector.
Final
unit
CN201 1 PC O TX power control signal output.
To 2 8T O 8V output during transmissioin.
Final 3 8R O 8V output during reception.
unit 4 E – Earth.
5 DB I Tranmission drive control voltage
input (APC).
CN202 1 NC – Not used.
To 2 UL O Lock detect output for PLL.
Control “H” : Lock, “L” : Unlock
unit 3 EP I ENABLE input for PLL.
4 CP I CLOCK input for PLL.
5 MO I Modulation signal input for VCO.
6 MB I Modulation and frequency control
signal input for VCXO.
7 SB I Power output after power switch
(13.4V
±
15%).
8 DT I DATA input.
9 ES I ENABLE input for shift register.
10 CK I CLOCK input for shift register.
11 KEY I KEY signal input. “H” : TX
12 8C I Common 8V (8V
±
5%).
13 E – Earth.
14 DET O Detection signal output.
15 SQL O Squelch signal output.
16 RSI O RSSI signal output.
17 TV I Tuning voltage signal input for RX BPF.
18 PC I TX power control signal input.
CN203 1 DO O Transmission drive output.
To Coaxial connector.
Final
unit
FINAL UNIT (X45-3550-XX)
TX-RX UNIT (X57-5600-XX) (A/2)
Connector Terminal Terminal
I/O Terminal Function
No. No. Name
W501 1 RS2 O Output for remote speaker.
To 2 RS1 O Output for remote speaker.
Display 3 SB O Power output after power switch
unit (13.4V
±
15%).
4 IGN I Ignition input.
5 PS I Power swith control signal input.
6 TRD I/O TX data output/RX data input.
7 1/2 O Remote head 1 signal output.
8 RST O RESET signal output.
9 E – Earth.
10 MIC I MIC signal input.
11 ME – MIC earth.
CN501 1 +B I Power supply input (13.4V
±
15%).
To 2 +B I Power supply input (13.4V
±
15%).
Final 3 E – Earth.
unit
CN502 1 PC O TX power control signal output.
To 2 TV O Tuning voltage signal output for RX BPF.
TX-RX 3 RSI I RSSI signal input.
unit 4 SQL I Squelch signal input.
5 DET I Detection signal input.
6 E – Earth
7 8C O Common 8V (8V
±
5%).
8 KEY O KEY signal output. “H” : TX
9 CK O CLOCK output for shift register.
10 ES O ENABLE output for shift register.
11 DT O DATA output.
12 SB O Power output after power switch
(13.4V
±
15%).
13 MB O Modulation and frequency control
signal output for VCXO.
14 MO O Modulation signal output for VCO.
15 CP O CLOCK output for PLL.
16 EP O ENABLE output for PLL.
17 UL I Lock detect input for PLL.
“H” : Lock, “L” : Unlock.
18 NC – Not used.
CN504 1 AFO O RX audio signal output for head 2.
To 2 DE3 I/O Detection signal input from Radio 2.
Control 3 E – Earth
cable 4 EI O ENABLE output for shift register.
(Remote 5 CK O CLOCK output for shift register.
kit) 6 DT O DATA output for shift register.
7 RST I/O RESET signal output for Radio 2.
8 5C O Common 5V (5V
±
5%).
9 PSC I/O Power switch control signal
input/output.
10 CS O Chip select output for D/A converter.
CN505 1 RSI O RSSI signal output.
To Acc 2 NC (SB) O Non connection.
25 pin 3 AI1 I Auxiliary input 1 (FPU selectable).
D-sub 4 RSV1 O Reserved
connector 5 AI2 I Auxiliary input 2 (FPU selectable).
6 RSV2 I Reserved.
7 AI3 I Auxiliary input 3 (FPU selectable).
8 AFO O RX audio signal output.
9 AI4 I Auxiliary input 4 (FPU selectable).
10 E – Earth.
11 AI5 I Auxiliary input 5 (FPU selectable).
12 DEO O Detector signal output.
13 E – Earth.
CONTROL UNIT (X57-5600-XX) (B/2)
TERMINAL FUNCTION