Kenwood NXR-700H Service Manual

175SCHEMATIC DIAGRAM / 原理图 NXR-700HNote : The components marked with a dot (• ) are parts of layer 1.X56-311 (A/3) 6/67654321ADACABAAZDRX_19.2MHzR8450D409CSA70-401LR8330 R822 0R865100kR8320R813 0R8370C574330pCN80712C8600.01uR8670CN403C577330pR8310R816 0R8660C858470pR823 0C578330pCN8041 GND2 GND3 WP4 MoD5 GND6 SDo17 SCLK08 SCLK19 SDo010 SDi111 SR_EN12 8AD_EN13 SR_oE14 2DA_CE15 3DA_EN16 2DA_EN17 LDT18 132_CE19 440_CE20 132_EN21 440_EN22 VR_EN23 DDS_EN24 ANT_SW25 TEMP_PRT26 SCK27 D_GND28 SDA29 D_GND30 CoNT_5.0V31 D_GND32 CoNT_5.0V33 GND34 PAG35 GND36 GNDR817 0C57518pR812 0CN802C57618pC85610u25R821 0R8300R819 0CN407L433390nC859470pL434390nR814 0CN406R820 0C573330pCN408C84822u35C8570.01uR824 0CN405R818 0R815 0R8350R8340R869100kR8360R8400CN801213CN8031 33MPU2 GND3 oX_SDA4 oX_SCL5 oCXo_VR_EN6 oCXo_oN7 oX_SCLK28 oCXo_CURR9 oX_SDi210 oCXo_EXiST11 oX_SDo212 GND13 REF_SW2CN8061 GND2 GND3 WP4 GND5 D_GND6 SDA7 D_GND8 SCK9 D_GND10 CoNT_5.0V11 D_GND12 TEMP_PRT13 GND14 ANT_SW15 GND16 TEMP_RST17 GND18 FAN_CoNT219 GND20 FAN_CoNT21 GND22 PWR_CoNT23 GND24 PWR_PRT25 GND26 RFL_PWR27 GND28 FWD_PWR29 GND30 FAN_CURR31 GND32 PA_CURR33 GND34 NC(FAN_CURR2)35 GND36 GNDCN8051 GND2 GND3 33MPU4 oX_SCLK25 GND6 oX_SDo27 GND8 PLL_19_CE9 GND10 PLL_19_EN11 GND12 REF_LDT13 GND14 VCXo_DA_EN15 GND16 oCXo_EXiST17 GND18 oCXo_CURR19 GND20 oCXo_oN21 GND22 oCXo_VR_EN23 GND24 oX_SDi225 GND26 REF_iN_oUT27 iMP_H_L28 REF_EXiST29 oX_SDA30 EXT_EXiST31 oX_SCL32 REF_SW33 WP34 REF_SW235 GND36 GNDGNDIN oUTWPoX_SCLK2oX_SDo2PLL_19_ENoX_SCLK2REF_LDTREF_SW2OCXO_EXIST33MPUOCXO_EXIST33MPUoX_SDo2VCXO_DA_ENRFL_PWRPWR_CONTPA_CURRFAN_CONT2PWR_PRTFAN_CURRFAN_CONTFWD_PWRTEMP_RSTCoNT_5.0VMODPAGSDA440_CE132_CESDo13DA_EN132_EN2DA_ENSR_OESDI1VR_ENSCK440_ENLDT8AD_ENDDS_ENSCLK12DA_CESR_ENDGND146-174MHz-->REF2SDo0SCLK019.2MHz -->+20dBmOPTION UNIT(OCXO)<--10MHz13.8V10MHz---><--10MHz19.2MHz -->19.2MHz -->OCXOX53-413 -CN56REF1LPF13LPF12REF oUTREF_INTX oUTCONTROL UNITX45-385 (A/5)-CN20FINAL UNITX53-414 -CN400CONTROL UNITX42-328 -CN3OCXOGNDCONTROL UNITX53-414 -CN302RX UNITX55-309 -CN45FINAL UNITX45-385 (C/5)-CN12EBBX45-385 (C/5)-CN1FINAL UNITOPTION UNIT(OCXO)X42-328 -CN1REF SIGNALOUTPUT19.2MHz -->13.8VSCLK0SDo0146-174MHz-->OPTION UNIT(OCXO)X42-328 -CN2IC809NJM7808FA-ZBV-8VOLTAGEREGULATORT:13.62VR:13.71V8V+20dBmTX UNIT (X56-3112-71) (A/3)