Kenwood TK-80, Руководство по обслуживанию

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TK-80
56
CN No. Pin No. Pin Name Function
CN1 21 MU Microphone UP switch
22 SS Standby switch
23 VSQL Squelch volume voltage
24 VCL Clarifier volume voltage
25 VAF AF volume voltage
26 DGND Digital GND
CN2 1 DGND Digital GND
2 FSL Selective call signal detector
3 FSD Selective call data
4 5A 5V
5 DGND Digital GND
6 STD Single tone detector
7 Q4 DTMF decode data
8 Q3 DTMF decode data
9 Q2 DTMF decode data
10 Q1 DTMF decode data
11 TOE DTMF decoder control
12 DGND Digital GND
CN3 1 TT Antenna tuner control
2 TS Antenna tuner control
3 FEN4 Shift register 4 enable
4 UCK Shift register control clock
5 UDA Shift register control data
6 DGND Digital GND
7 THP Thermal protection.
High when it operates
8 BOVR Low: DC over voltage
(approx. 19V or more)
9 PSC High when power switch is turned
10 5A 5V
11 14V 14V
12 14S 14V (switched)
13 8A 8V
14 GND GND
15 NC No connection
16 NC No connection
CN4 1 DGND Digital GND
2 RTS PC I/F (request to send)
3 CTS PC I/F (clear to send)
4 RXD PC I/F (RX data)
5 TXD PC I/F (TX data)
CN No. Pin No. Pin Name Function
CN4 6 AMUT Audio mute
7 VAF AF volume voltage
8 SIDE Sidetone
9 BZ Beep
10 BSY Busy signal
11 CKY Keying control
12 RXC Receive control
13 TXC Transmit control
14 SM Signal meter voltage
15 VSFM Forward wave voltage
16 VSRM Reflected wave voltage
17 FEN3 Shift register 3 enable
18 FEN2 Shift register 2 enable
19 VEN1 Electronic volume control enable
20 UCK Shift register, electronic volume
control clock
21 UDA Shift register, electronic volume
control data
22 FEN1 Shift register 1 enable
23 KYS Key jack input. High when jack is inserted
24 KEY CW keying. High: Key down
25 SS Standby switch
26 GND GND
CN5 1 GND GND
2 ABSL DDS2 register selection
3 DEN2 DDS2 enable
4 CASL DDS1 & PLL register selection
5 DEN1 DDS1 enable
6 NC No connection
7 PLS Keying line switch
8 PEN1 PLL enable
9 PDA PLL data
10 PCK PLL clock
11 ULK Unlock detection signal. Low: Unlock
12 VB3 VCO3 selection signal
13 VB2 VCO2 selection signal
14 VB1 VCO1 selection signal
15 VDLY Delay volume voltage
16 GND GND
CN6 1 DGND Digital GND
2 DGND Digital GND
TERMINAL FUNCTION