Kenwood NXR-800 Service Manual

Also see for NEXEDGE NXR-800: Brochure Instruction manual Instruction manual Instruction manual Instruction manual

Contents

NXR-80034RX Unit (X55-3100-10)Pin No. Name I/O FunctionCN5 (To RX ANT)1 RX_SIGNAL I Receive signal input (Coaxial)CN6 (To X45-382 D/5 CN701)1 - O 9V output2 - - GroundCN36 (To X45-382 D/5 CN701)1 - I -3V input2 - - GroundCN411 MONITOR_PORT O Use for RX BPF tuning (Coaxial)CN42 (To X53-413 CN57)1 GND - Ground2 GND - Ground3 NC - No connection4 RX_POWER_SAVE I RX power save5 DDS_EN I Enable input for DDS6 VCO_BAND_SW I VCO band switch7 PLL1_EN I Enable input for PLL18 DA_EN I Enable input for DA9 SIF_CLK I Clock input for PLL1/PLL2/DDS/DA10 GND - Ground11 SIF_DAT I Data input for PLL1/PLL2/DDS/DA12 RX_AUDIO O RX audio output13 PLL_PWR_SAVE I Enable input for PLL1/PLL214 GND - Ground15 NC - No connection16 FM_RSSI O FM RSSI output17 PLL2_EN I Enable input for PLL218 NC (AGC_RSSI) - No connection19 PLL_LOCK_DET O PLL1/PLL2 lock detect output20 CONT_5.0V I Switched 5V supply21 NC - No connection22 AD_CLK O AD logic data output23 GND - Ground24 AD_CLK I Clock input for AD25 NC (IF_NW_SW) - No connection26 AD_DAT_WRITE I Serial data input for AD27 IF_BW_SW I IF bandwith switch input28 AD_CS I Enable input for AD29 D_GND - Ground30 E2PROM_SCL I Clock input for E2PROMPin No. Name I/O Function31 CONT_5.0V I Switched 5V supply32 E2PROM_SDA I/O Data input/output for E2PROM33 D_GND - Digital ground34 WP I Write protection input for E2PROM35 GND - Ground36 GND - GroundCN43 (To X53-414 CN300)1 RX_IF_VN O RX NXDN detection outputCN44 (To X45-382 C/5 CN15)1 E - Ground2 B I Power supply input3 B I Power supply inputCN45 (To X56-312 A/3 CN406)1 REF1 I Reference signal inputCN461 - I Use for RX MCF tuning2 GND - GroundCN471 - O Use for RX MCF tuning2 - - GroundTX Unit (X56-3120-10) (A/3)Pin No. Name I/O FunctionCN4031 REF_OUT (10MHz) O Reference signal distribution (coaxial)CN405 (To X53-414 CN302)1 REF2 (19.2MHz) O DSP reference signal output (coaxial)CN406 (To X55-310 CN45)1 REF1 (19.2MHz) O Rx reference signal output (coaxial)CN407 (To X42-328 CN2: OCXO Optional unit)1 OCXO I OCXO (Optional unit) reference signalinput (coaxial)CN4081 REF_IN (10MHz) I External reference signal input (coaxial)CN801 (To X45-382 C/5 CN12)1 E - Ground2 B I Power supply (Vcc)3 B I Power supply (Vcc)CN802 (To X45-382 A/5 CN1)1 TX OUT O Tx driver output signal (coaxial)CN803 (To X42-328 CN1: OCXO Optional unit)1 33MPU O Switched 3.3V power supplyTERMINAL FUNCTION