Kenwood TKR-D710 Service Manual page 66

TKR-D710
TX-RX Unit (X57-894K-01)
Pin No. Name I/O
CN101 (To RX ANT)
1 RX_SIGNAL
CN202 (To X58-519 CN350)
1 GND
2 NC
3 80C_2
4 RXVCOA/B
5 RX_CV
6 NC
7 RXASSIST
CN203 (To X58-519 CN351)
1 VO
2 GND
CN204 (To X58-519 CN303)
1 FIN
2 SPSCLK0
3 /RXPCS_TR
4 SPSD0
5 33C
6 50C
7 LDR
8 REF
CN500 (To Ext IN)
1 REF IN
CN605 (To X58-520 CN350)
1 GND
2 TXVCOB
3 80C_1
4 TXVCOA
5 TX_CV
6 MO
7 TXASSIST
CN608 (To X58-520 CN351)
1 VO
2 GND
CN609 (To X58-520 CN303)
1 FIN
2 SPSCLK0
3 /TXPCS
4 SPSD0
66
TERMINAL FUNCTION
Function
I Receive signal input (Coaxial)
- Ground
- No connection
O 8V power supply
O VCO select
I Control voltage input
- No connection
O Assist voltage output
I VCO input
- Ground
O VCO output
O PLL clock output
O PLL chip select output
O PLL data output
O 3.3V power supply
O 5V power supply
I PLL lock detect input
O 19.2MHz reference clock output
I External reference input (Coaxial)
- Ground
O VCOB select
O 8V power supply
O VCOA select
I Control voltage input
O Modulation output
O Assist voltage output
I VCO input
- Ground
O VCO output
O PLL clock output
O PLL chip select output
O PLL data output
Pin No. Name I/O
5 33C O 3.3V power supply
6 50C O 5V power supply
7 LDT I PLL lock detect input
8 REF O 16.8MHz reference clock output
CN610 (To X45-401 A/3 CN1)
1 TX OUT O TX driver output signal (Coaxial)
CN700 (To X53-458 CN301)
1 GND - Ground
2 +B O Power supply output
3 SB O Power supply output
CN701 (To X45-401 A/3 CN203)
1 GND - Ground
2 +B I Power supply input
3 +B I Power supply input
CN800 (To X53-458 CN38)
1 NC - No connection
2 /EVCS I DA converter chip select signal
3 /IOCS O IO expander chip select signal
4 SPSD1 I Serial data
5 I2CDA I/O Serial data
6 SPSCLK1 I Serial clock
7 I2CCK I Serial clock
8 HWV1 O Hardware version signal
9 /EWP I EEPROM write control signal
10 33A I 3.3V voltage
11 AGC I Auto gain control voltage
12 RSSI O RSSI voltage
13 GND - Ground
14 MOD I Audio signal for TX modulation
15 GND - Ground
16 SBC I Switched +B control signal
17 SPSD0 I Serial data
18 SPSCLK0 I Serial clock
19 /TXPCS I TX PLL chip select signal
20 LDR O RX PLL lock detect signal
21 /16_8PCS I Reference clock PLL chip select signal
22 LDT O TX PLL lock detect signal
23 /RXPCS_TR I RX PLL chip select signal
24 TXVCOA I TX VCO A control signal
25 RXVCOA/B I RX VCO control signal to A or B
26 TXVCOB I TX VCO B control signal
Function