Kenwood NXR-710 Service Manual page 56

NXR-710
Pin No. Name I/O
7 TXASSIST
CN608 (To X58-508 CN351)
1 VO
2 GND
CN609 (To X58-508 CN303)
1 FIN
2 SPSCLK0
3 /TXPCS
4 SPSD0
5 33C
6 50C
7 LDT
8 REF
CN610 (To X45-392 A/3 CN1)
1 TX OUT
CN700 (To X53-449 CN301)
1 GND
2 +B
3 SB
CN701 (To X45-392 A/3 CN203)
1 GND
2 +B
3 +B
CN800 (To X53-449 CN38)
1 NC
2 /EVCS
3 /IOCS
4 SPSD1
5 I2CDA I/O Serial data
6 SPSCLK1
7 I2CCK
8 HWV1
9 /EWP
10 33A
11 AGC
12 RSSI
13 GND
14 MOD
15 GND
16 SBC
17 SPSD0
18 SPSCLK0
19 /TXPCS
20 LDR
21 /16_8PCS
22 LDT
56
TERMINAL FUNCTION
Function
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 16.8MHz reference clock output
O TX driver output signal (Coaxial)
- Ground
O Power supply output
O Power supply output
- Ground
I Power supply input
I Power supply input
- No connection
I DA converter chip select signal
O IO expander chip select signal
I Serial data
I Serial clock
I Serial clock
O Hardware version signal
I EEPROM write control signal
I 3.3V voltage
I Auto gain control voltage
O RSSI voltage
- Ground
I Audio signal for TX modulation
- Ground
I Switched +B control signal
I Serial data
I Serial clock
I TX PLL chip select signal
O RX PLL lock detect signal
I Reference clock PLL chip select signal
O TX PLL lock detect signal
Pin No. Name I/O
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
27 GND - Ground
28 GND - Ground
29 RX_CV O RX VCO lock voltage
30 TX_CV O TX VCO lock voltage
31 RXASSIST I RX PLL assist voltage
32 TXASSIST I TX PLL assist voltage
33 FWD O RF power monitor voltage
34 RAMP I RF power control voltage
35 TMP2 O Temperature of X45 Final unit
36 TMP1 O Temperature of X45 Final unit
CN801 (To X45-392 A/3 CN204)
1 HWV2 I Hardware version detect
2 H/L O Power control
3 PLIM O Power limit control
4 TMP1 I Temperature of X45 Final unit
5 TMP2 I Temperature of X45 Final unit
6 FDT I Coupler input voltage
7 FAN O FAN control
8 ASWC O ANT switch control
9 RAMP O RF power control voltage
10 8TC O 8V power supply control
11 GND - Ground
CN802 (To X53-449 CN39)
1 IF_SIG O 450kHz IF signal (Coaxial)
RX VCO/PLL Unit (X58-5070-10)
Pin No. Name I/O
CN303 (To X57-794 CN204)
1 FIN I VCO input
2 SPSCLK0 I PLL clock input
3 /RXPCS_TR I PLL chip select input
4 SPSD0 I PLL data input
5 33C I 3.3V power supply
6 50C I 5V power supply
7 LDR O PLL Lock detect output
8 REF I 19.2MHz reference clock input
CN350 (To X57-794 CN202)
1 GND - Ground
2 NC - No connection
3 80C_2 I 8V power supply
4 RXVCOA/B I VCO select
5 RX_CV O Control voltage output
Function
Function