Kenwood NXR-5700, Service Manual

Page: 30 / 122

1-30 (No.RA033<Rev.001>)
2.8.3 Final Unit (XC3-0150-10) (D/5)
2.8.4 Final Unit (XC3-0150-10) (E/5)
2.8.5 Control Unit (XC1-0640-10)
Pin
No.
Name I/O Function
CN800 (To Control Unit XC1-064 CN830)
1 VBUS O USB VBUS(5V) output
2 D+ I/O USB Data plus
3 D- I/O USB Data minus
4 GND - USB Ground
Pin
No.
Name I/O Function
CN905 (To TX Unit XC1-065 C/3 CN903)
1 VOLUME_IN O Volume control for AF signal
2 33MPU I 3.3V power supply
3 GND - Ground
4 NC - No connection
5 +B I Power supply input
6 NC - No connection
7 GND - Ground
8 /PTT O PTT signal
9 HOOK O Hook detection input
10 MIG - MIC Ground
11 MIC O MIC signal
Pin
No.
Name I/O Function
CN1 (To Final Unit XC3-015 C/5 CN702)
1 +B I 13.6V power supply
2 +B I 13.6V power supply
3 GND - Ground
4 GND - Ground
CN100 (To RX Unit XC1-066 CN7)
1 GND - Ground
2 SPSCLK0 O SPI0 clock
3 GND - Ground
4 SPSD0 O SPI0 data out
5 GND - Ground
6 RF_B_ON O RF +B switch control signal
7 33M O 3.3V power supply
8 /IO_RST O Reset signal of IO Expander(ALL)
9 /RXIOINT I Interrupt signal of IO Expander(RX)
10 /RXPCS O RX PLL chip select signal
11 GND - Ground
12 /EVRXCS1 O RX EVOL chip select signal
13 /EVRXCS2 O RX EVOL2 chip select signal
14 I2CCK O I2C clock
15 GND - Ground
16 I2CDA I/O I2C data
17 GND - Ground
18 I2CCK2 O I2C clock2
19 GND - Ground
20 I2CDA2 I/O I2C data2
21 /EWP O EEPROM write control signal
22 33D O 3.3V power supply
23 LNA_ON O LNA switch control signal
24 GND - Ground
25 RXASSIST O RX PLL assist voltage
26 ASTSW_RX O RX PLL assist control signal
27 RX_UL I RX PLL unlock detect signal
28 RSSI I RSSI voltage
29 DET0 I RF input status voltage
30 LNA_CUR I LNA current detect signal
31 RX_CV I RX VCO lock voltage
32 GND - Ground
33 MIX
STAT(NC) - No connection
34 EXT_RSSI I External RSSI voltage
35 AGC O Auto gain control voltage
36 GND - Ground
CN101 (To Tx Unit XC1-065 A/3 CN722)
1 /OC_VE_EN O Serial data enable signal to potenti-
ometer of OCXO unit
2 GND - Ground
3 RAMP O RF power control voltage
4 GND - Ground
5 OC_CURR I Monitor of the voltage which detects
current of OCXO unit
6 I2CDA I/O I2C data
7 GND - Ground
8 I2CCK O I2C clock
9 ANT_SW O ANT switch control
10 33M O 3.3V power supply
11 /IO_RST O Reset signal of IO Expander(ALL)
12 /TXIOINT I Interrupt signal of IO Expander(TX)
13 /MODPCS O MOD PLL chip select signal
14 /REFPCS O REF PLL chip select signal
15 GND - Ground
16 /EVTXCS O TX EVOL chip select signal
17 /TXPCS O TX PLL chip select signal
18 /DACCS O DA converter chip select signal
19 /ADCCS O AD converter chip select signal
20 I2CDA2 I/O I2C data2
21 GND - Ground
Pin
No.
Name I/O Function