Kenwood NXR-700 Service Manual

Also see for NEXEDGE NXR-700: Brochure Instruction manual Service manual Instruction manual Instruction manual

Contents

NXR-70030Pin No. Name I/O FunctionCN3 (To X56-311 B/3 CN921)1 DC8 O 8V constant voltage2 GND - Ground3 DC8 O 8V constant voltage4 DC8 O 8V constant voltage5 50MPU O 5V constant voltage6 50MPU O 5V constant voltage7 GND - Ground8 DC8 O 8V constant voltage9 K5 O Key Scan10 K4 O Key Scan11 K3 I Key Scan12 K2 I Key Scan13 K1 I Key Scan14 GND - Ground15 STB1 O Shift Register Strobe16 GND - Ground17 SR_DATA O Shift Register Data18 GND - Ground19 SR_CLK O Shift Register Clock20 GND - Ground21 SR_OE O Shift Register Output Enable22 GND - Ground23 PTT_TXD_SCM I MIC PTT24 SCM_EN - No connection25 HOOK_RXD_SCM I HOOK detect input26 GND - Ground27 OCXO_ST_G O OCXO Green LED Switch28 PWR_ST_R O POWER Red LED Switch29 OCXO_ST_R O OCXO Red LED Switch30 SB O Power supply output31 VOLUME_IN I Volume control input for AF signal32 33AUD O 3.3V constant voltage33 33MPU O 3.3V constant voltage34 MIC I MIC Signal Input35 GND - Ground36 MIG - MIC GroundCN4 (To X45-385 C/5 CN11)1 E - Earth2 NC - No connection3 SB I Power supply input4 SB I Power supply inputPin No. Name I/O FunctionCN56 (To X56-311 A/3 CN804)1 GND - Ground2 GND - Ground3 PAG O POCSAG Switch4 GND - Ground5 CONT_5.0V O 5V constant voltage6 D_GND - Ground7 CONT_5.0V O 5V constant voltage8 D_GND - Ground9 SDA I/O EEPROM Data10 D_GND - Ground11 SCK O EEPROM Clock12 TEMP_PRT I Temperature Sensor Protection Signal13 ANT_SW O Transmission antenna switch14 DDS_EN I/O Enable for DDS / Hardware version DCsignal15 VR_EN O Enable for electronic volume16 440_EN O Enable for PLL17 132_EN O Enable for PLL18 440_CE O PLL chip select19 132_CE O PLL chip select20 LDT I PLL lock detection21 2DA_EN O Enable for 2ch DAC22 3DA_EN O Enable for 3ch DAC23 2DA_CE O Chip select for 2ch DAC24 SR_OE O Shift Register Output Enable25 8AD_EN O Enable for 8ch DC26 SR_EN O Shift Register Strobe27 SDI1 I Analog data of 8ch ADC28 SDO0 O Data for 3 line serial29 SCLK1 O Clock 1 for 3 line serial30 SCLK0 O Clock for 3 line serial31 SDO1 O Data 1 for 3 line serial32 GND - Ground33 MOD O Modulating signal34 WP O Write protection of EEPROM35 GND - Ground36 GND - GroundCN57 (To X55-309 CN42)1 GND - Ground2 GND - Ground3 WP O Write protection of EEPROM4 D_GND - Digital GroundTERMINAL FUNCTION