Kenwood NXR-700 Service Manual

Vhf digital base-repeater

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Service manual (162 pages)

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Table of Contents

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Summary of Contents for Kenwood NXR-700

Page 1: Table Of Contents
VHF DIGITAL BASE-REPEATER NXR-700 SERVICE MANUAL E2 version © 2012-9 PRINTED IN JAPAN B53-7034-00 ( Y ) 179 Lead wire with Badge Main panel connector (DSUB-9P) Modular jack (B43-1188-04) (A62-1142-02) (E37-1311-05) (E58-0526-05) Knob (VOL) (K29-4539-04) Lead wire with Lead wire with...
Page 2: General
Disclaimer While every precaution has been taken in the preparation Transceivers containing AMBE+2™ Vocoder: of this manual, JVC KENWOOD Corporation assumes no The AMBE+2™ voice coding technology is embedded in responsibility for errors or omissions. Neither is any liability the ﬁ rmware under the license of Digital Voice Systems, Inc.
Page 3: System Set-Up
Use this mode to make various settings by PC mode means of the FPU through the RS-232C 3-2. Connection Procedure port. 1. Connect the NXR-700 to the personal computer with the PC programming Use to read and write frequency data and interface cable. mode other features to and from the repeater.
Page 4 XP, Vista or 7 on a PC. You can only program ﬁ rmware from the DB-9 COM con- The data can be input to or read from NXR-700 and ed- nector on the front panel. Using the 25-pin logic interface on ited on the screen.
Page 5: Operating Features
NXR-700 OPERATING FEATURES • “E6” is displayed when no frame clock is entered. 1. Two 17-segment LED Displays • Channel display (1~30): While operating normally in user mode. • “E7” is displayed when the thermal protection occurs. • When the displayed channel is contained in scan se- quence, the right side decimal point is displayed.
Page 6: Installation
Fig. 2-1 Fig. 1 2. External Speaker (KES-5) The NXR-700 has a internal built-in speaker, and the ex- ternal speaker output from the TEST/SPKR connector (15- pin) on the rear of the radio is 3W/4. Use external speaker Extracting tool KES-5.
Page 7 NXR-700 INSTALLATION 3. How to Attach the Supplied Accessories 1. Attach the front glass to the front panel with the supplied screw. ( a ) 2. To attach the handles on the both sides of the chassis, refer to illustration. ( b )
Page 8: Circuit Description
5.99MHz internal DDS, the 10MHz external reference signal 1. Outline and the 10MHz OCXO unit. The NXR-700 is a VHF repeater operating in the 136~ If no OCXO unit is installed, and there is no external ref- 154MHz frequency range.
Page 9 NXR-700 CIRCUIT DESCRIPTION 5V #3 IC401 CVT-REF OP-AMP 5V #3 IC404 5V #3 PLL IC 8V #2 8V #2 5V #1 5V #1 Internal TX Mod 19.2MHz 19.2MHz /External 19.2MHz 5.99MHz PLL circuit Ref circuit IC407 X401 Q417 Q416 Q412...
Page 10 NXR-700 CIRCUIT DESCRIPTION 2-4. Transmitter DDS circuit ence frequency signal based on 19.2MHz on signal. The spurious output by IC202 is attenuated by CF201 The transmitter DDS circuit produces the transmitter and LPF, 4.5MHz reference frequency signal is ampliﬁ ed by main PLL reference frequency signal 4.5MHz.
Page 11 NXR-700 CIRCUIT DESCRIPTION 2-6. Driver circuit level is approximately +11dBm (12.6mW). The output from Q202 is attenuated by attenuators R217, The driver circuit ampliﬁ es the transmitter frequency sig- R218 and R219, by approximately 3dB, and amplified by nal to the level required for input to the Final Unit (X45-385 Q203 approximately by 12dB.
Page 12 NXR-700 CIRCUIT DESCRIPTION 2-8. AVR circuit The temperature sensor (IC804) monitors the tempera- ture of the transmitter unit (X56-311 A/3). IC104, IC603, IC704, IC705, IC706, IC807, IC808, IC809 The D/A converters (IC701 and IC802) converts the AGC and IC810 are AVR ICs.
Page 13 NXR-700 CIRCUIT DESCRIPTION 3-3. Forward/Reﬂ ect power detector circuit It compares the voltage detected by the Forward/Reﬂ ect power detector circuit (voltage detected by the Forward The forward / Reﬂ ect power detector circuit consists of Power) and the Control Voltage (PWR_CONT) from the a CM coupling type detection circuit formed by a Micro strip MPU (IC802: X56-311 A/3).
Page 14 NXR-700 CIRCUIT DESCRIPTION 3-7. FAN action control circuit 3-10. Other circuits The FAN action control circuit consists of a FAN and a Circuit IC9 saves various adjustment values of the Final AVR (IC12) Unit in the EEPROM. VBATT 4. Receiver Unit...
Page 15 NXR-700 CIRCUIT DESCRIPTION 4-2. 1st-Mixer circuit 4-3. 1st-IF circuits The unwanted out-of-band RF components produced The IF1 signal produced by the 1st-Mixer circuit is trans- by Q1 are attenuated by the BPF. Only the desired signal mitted through either one of two 1st-IF circuits with different is transmitted to the A1 Double Balanced Mixer (DBM).
Page 16 NXR-700 CIRCUIT DESCRIPTION CN42 QUAD IC20 (A/2) IC12 D17,18 Analog Wide 5k/4k 2nd local Analog Narrow 11 18 49.5MHz IC29 (A/2) IC30 2nd local 49.5MHz CN43 IC13 IC14 NXDN Narrow NXDN Very-Narrow Fig. 19 Demodulator circuits 4-5. Squelch circuit 4-6. Receiver DDS circuit The desired noise of the noise component output from IF The 19.2MHz Internal reference clock produced by trans-...
Page 17 NXR-700 CIRCUIT DESCRIPTION 4-7. Receiver PLL circuits +17dBm via Q17, Q23, and Q18. The control voltage is in- put to IC30 (ADC) pin 16 via IC6. The receiver unit (X55-309) has the 1st-PLL circuit for Meanwhile, the 2nd-PLL circuit consists of the VCO (Q24),...
Page 18 NXR-700 CIRCUIT DESCRIPTION IC24 IC16 Q18,23 IC13 1st local amplifiers IF systemIC CN44 IC17 Q19,28 Q21,53 WIDE pass 2nd local amplifiers IC10 Q20,29 Narrow pass Pre-scaler IC22 IC15 IC12 IC14 +3.3V IF system IC 2nd IF amplifier IC25 IC18 IC5,11...
Page 19 NXR-700 CIRCUIT DESCRIPTION from the DISPLAY circuit (X56-311 B/3). 5. Baseband Signal Processing Part The baseband circuit is located on unit X53-413. This 5-4. Modulation circuit circuit enables the selection of the Analog Signal Processing (Analog/NXDN signal processing) mode and the Digital Signal Processing mode, and adjusts The transmitting audio signal goes to the input terminal the level of the baseband signals in each mode.
Page 20 ■ RS-232C circuit mitter unit (X56-311) and Final unit (X45-385). The RF control MPU controls these EEPROMs by the IIC NXR-700 is equipped with a RS-232C interface. It is bus. connected to a PC with pin 9 female RS-232C cross-wired cable.
Page 21 NXR-700 CIRCUIT DESCRIPTION ■ Modem control MPU band. So, it passes through the IF band limitation band. This signal is demodulated by the wave detection pro- Modem control MPU (IC325) is 16-bit single chip micro- cessing part. The demodulated wave is made to pass...
Page 22 Modem control MPU (IC325) and ■ Flash memory (Modem control MPU) NXR-700 rapidly shift to the power down state. The IC325 A/D converter (pin 124) monitors the voltage. It detects the IC314 is an 8M bit Flash memory and contains the ﬁ rm- voltage rises and returns to the normal voltage range.
Page 23 NXR-700 CIRCUIT DESCRIPTION ■ SRAM 7. Display Circuit IC700 is a memory backed up by a lithium battery 7-1. Display circuit (BA300). The display circuit (X56-311 B/3,C/3) consists of various The memory size is 16M bits. It contains data required types of LEDs, 17-segment type D960, D961 (red), D921 for the system backup.
Page 24: Components Description
NXR-700 COMPONENTS DESCRIPTION FINAL UNIT (X45-3852-71) Ref. No. Part Name Description Ref. No. Part Name Description IC29 AF PA Current monitor IC30 NAND gate OP AMP IC31 Divider Voltage regulator IC32,33 Buffer IC4~6 OP AMP IC34 Temperature sensor IC35 EEPROM...
Page 25 NXR-700 COMPONENTS DESCRIPTION Ref. No. Part Name Description Ref. No. Part Name Description Zener diode Surge protector Q301 Transistor DC switch D36,37 Diode Surge protector Q302 Transistor Power switch D38,39 Diode Diode switch Q303 Transistor Control switch Q304 Transistor Reference AMP...
Page 26 NXR-700 COMPONENTS DESCRIPTION TX UNIT (X56-3112-72) Ref. No. Part Name Description Transistor PLL active ﬁ lter AMP Ref. No. Part Name Description IC101 RF PLL Transistor RF AMP IC102 OP AMP Transistor PLL active ﬁ lter AMP IC104 Voltage regulator...
Page 27 NXR-700 COMPONENTS DESCRIPTION Ref. No. Part Name Description Ref. No. Part Name Description Q104 Transistor RF AMP Q920~930 Transistor DC switch Q105 Transistor Ripple ﬁ lter AMP Q931,932 Transistor Audio level limiter Q106 Transistor RF AMP Q960~976 Transistor DC switch...
Page 28: Terminal Function
NXR-700 TERMINAL FUNCTION Final Unit (X45-3852-71) (A/5) Pin No. Name Function Pin No. Name Function D_GND Digital ground CN1 (To X56-311 A/3 CN802) I/O Data input/output for EEPROM TX SIGNAL TX driver input signal (Coaxial) D_GND Digital ground CN2 (To X45-385 C/5 CN29)
Page 29 NXR-700 TERMINAL FUNCTION Control Unit (X53-4132-71) Pin No. Name Function Pin No. Name Function CN2 (To X53-414 CN402) CN1 (To X53-414 CN401) System reset signal from modem con- SYS_RST trol MPU PTT_TXD_SCM No connection Ground Ground BER_CLK Serial clock for measurement bit error rate...
Page 30 NXR-700 TERMINAL FUNCTION Pin No. Name Function Pin No. Name Function CN3 (To X56-311 B/3 CN921) CN56 (To X56-311 A/3 CN804) O 8V constant voltage Ground Ground Ground O 8V constant voltage O POCSAG Switch O 8V constant voltage Ground...
Page 31 NXR-700 TERMINAL FUNCTION Pin No. Name Function Pin No. Name Function External press-to-talk switch input E2PROM_SDA I/O Data of EEPROM EPTT “L”=PTT on, “H”=PTT off CONT_5.0V 5V constant voltage Programmable function input 1 E2PROM_SCL O Clock of EEPROM Squelch control output...
Page 32 NXR-700 TERMINAL FUNCTION Pin No. Name Function Pin No. Name Function O Auxiliary output 3 Ground Serial data input from potentiometer of O Speaker AF output OX_SDI2 OCXO unit O Auxiliary output 2 Ground O Speaker AF output Serial data enable signal to potentio-...
Page 33 NXR-700 TERMINAL FUNCTION Pin No. Name Function Pin No. Name Function INRA_SW No connection 33SH O 3.3V constant voltage No connection 50MPU_CONT O 5V regurator control HOOK_RXD_SCM Hook detection input No connection Power source control of audio power “External press-to-talk-switch” signal...
Page 34 NXR-700 TERMINAL FUNCTION Pin No. Name Function Pin No. Name Function CN42 (To X53-413 CN57) Power supply input Ground CN45 (To X56-311 A/3 CN406) Ground REF1 Reference signal input No connection CN46 RX_POWER_SAVE RX power save Use for RX MCF tuning...
Page 35 NXR-700 TERMINAL FUNCTION Pin No. Name Function Pin No. Name Function Serial data output for OCXO IC3 (po- CN805 (To X53-414 CN400) OX_SDO2 tentiometer) Ground Ground Ground REF_SW2 O OCXO reference signal output switch 33MPU Switched 3.3V power supply CN804 (To X53-413 CN56)
Page 36 NXR-700 TERMINAL FUNCTION Pin No. Name Function Pin No. Name Function Ground 50MPU O Switched 5V power supply D_GND Ground O Shift Register Strobe I/O EEPROM Data SR_OE O Shift Register Output Enable D_GND Ground SR_CLK O Shift Register Clock...
Page 37 NXR-700 TERMINAL FUNCTION TX Unit (X56-3112-72) (C/3) Pin No. Name Function 8V Power supply Pin No. Name Function Ground CN960 (To X56-311 B/3 CN920) 8V Power supply 8V Power supply CN923 (To X45-385 E/5 CN905) Ground VOLUME_IN Volume control input for AF signal...
Page 38 NXR-700 TERMINAL FUNCTION Microphone Connector Signal Description /port Pin Name I/O Speciﬁ cation Unit Remarks Type Type Related to DC power Voltage value 10.8 13.2 15.6 Power Power supply terminal input Allowable current value voltage. Digital GND Allowable current value 0.8Vcc...
Page 39 NXR-700 TERMINAL FUNCTION CONTROL I/O D-sub 25-pin Connector Signal Pin Name I/O Signal Summary Speciﬁ cation Unit Remarks Type NC (RSSI) 0.8Vcc Programmable Vcc=5V±2% Digital Function Input 1 0.2Vcc /CMOS  Input impedance 47k PU to Vcc 0.8Vcc Programmable Vcc=5V±2%...
Page 40 NXR-700 TERMINAL FUNCTION Signal Pin Name I/O Signal Summary Speciﬁ cation Unit Remarks Type TX Signal GND 0.8Vcc Vcc=5V±2% 0.2Vcc Programmable  Digital Input impedance Function I/O 1 VOH (IO=–200µA) Vcc–2.0 47k PU to Vcc VOL (IO=200µA) 0.45 0.8Vcc Vcc=5V±2% 0.2Vcc...
Page 41 NXR-700 TERMINAL FUNCTION TEST/SPKR 15-pin Connector Con- Signal ﬁ guration Signal Summary Speciﬁ cation Unit Remarks Name Type Change Related to DC Voltage value 10.8 13.2 15.6 power supply Power Supply terminal input Supply current voltage. Related to DC Voltage value 10.8...
Page 42: Parts List
NXR-700 PARTS LIST ✽ New Parts. indicates safety critical components. L : Scandinavia K : USA P : Canada Parts without Parts No. are not supplied. Y : PX (Far East, Hawaii) T : England E : Eu rope Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Page 43 NXR-700 PARTS LIST FINAL UNIT (X45-3852-71) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation CK73GB1H103K CHIP C 0.010UF L34-4522-05 AIR-CORE COIL CC73GCH1H330J CHIP C 33PF L34-4519-05 AIR-CORE COIL...
Page 44 NXR-700 PARTS LIST FINAL UNIT (X45-3852-71) CONTROL UNIT (X53-4132-71) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R104 RK73GB2A393J CHIP R 1/10W CONTROL UNIT (X53-4132-71) R106 RK73GB2A000J CHIP R...
Page 45 NXR-700 PARTS LIST CONTROL UNIT (X53-4132-71) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C119 CC73GCH1H181J CHIP C 180PF C220 CK73GB1H103K CHIP C 0.010UF C120 CK73GB1H102K CHIP C...
Page 46 NXR-700 PARTS LIST CONTROL UNIT (X53-4132-71) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C318 CC73GCH1H101J CHIP C 100PF C416 CK73GB1H103K CHIP C 0.010UF C319 CK73GB1H102K CHIP C...
Page 47 NXR-700 PARTS LIST CONTROL UNIT (X53-4132-71) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R47 -49 RK73GB2A000J CHIP R 1/10W R160,161 RK73GB2A563J CHIP R 1/10W R51 -61 RK73GB2A000J...
Page 48 NXR-700 PARTS LIST CONTROL UNIT (X53-4132-71) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R247 RK73GB2A473J CHIP R 1/10W R477 RK73GB2A104J CHIP R 100K 1/10W R249,250 RK73GB2A000J CHIP R...
Page 49 NXR-700 PARTS LIST CONTROL UNIT (X53-4132-71) CONTROL UNIT (X53-4140-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation IC26 NJM2734V BI-POLAR IC C326-329 CK73HB1H102K CHIP C 1000PF IC27 TC7SET126FU-F...
Page 50 NXR-700 PARTS LIST CONTROL UNIT (X53-4140-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C471 CK73HB1H102K CHIP C 1000PF C725 CK73HB1H102K CHIP C 1000PF C475 CK73FB0J106K CHIP C...
Page 51 NXR-700 PARTS LIST CONTROL UNIT (X53-4140-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation J700 E58-0516-05 MODULAR JACK(LAN) R420 RK73HB1J000J CHIP R 1/16W J701 E58-0543-05 RECTANGULAR RECEPTACLE R421...
Page 52 NXR-700 PARTS LIST CONTROL UNIT (X53-4140-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R590 RK73HB1J000J CHIP R 1/16W R759 RK73HB1J000J CHIP R 1/16W R591 RK73HB1J223J CHIP R...
Page 53 NXR-700 PARTS LIST CONTROL UNIT (X53-4140-10) RX UNIT (X55-3092-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R913,914 RK73HB1J000J CHIP R 1/16W IC727,728 TC7SH126FU-F MOS-IC R915 RK73HB1J473J CHIP R...
Page 54 NXR-700 PARTS LIST RX UNIT (X55-3092-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation ✽ CS77BB21A470M CHIP TNTL 47UF 10WV C162 CC73GCH1H070D CHIP C 7.0PF CC73GCH1H101J CHIP C...
Page 55 NXR-700 PARTS LIST RX UNIT (X55-3092-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C256 CK73GB1H102K CHIP C 1000PF C341,342 CK73GB1H473K CHIP C 0.047UF C257 CK73GB1H103K CHIP C 0.010UF...
Page 56 NXR-700 PARTS LIST RX UNIT (X55-3092-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C432 CK73GB1H102K CHIP C 1000PF C537-540 CK73GB1H102K CHIP C 1000PF C434,435 CK73GB1H473K CHIP C 0.047UF...
Page 57 NXR-700 PARTS LIST RX UNIT (X55-3092-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C647 CK73GB1H102K CHIP C 1000PF L41-1095-33 SMALL FIXED INDUCTOR(1.0UH) C648,649 CC73GCH1H150J CHIP C 15PF...
Page 58 NXR-700 PARTS LIST RX UNIT (X55-3092-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation L102 L41-1005-33 SMALL FIXED INDUCTOR(10UH) RK73GB2A330J CHIP R 1/10W L103 L41-3985-33 SMALL FIXED INDUCTOR(0.39UH)
Page 59 NXR-700 PARTS LIST RX UNIT (X55-3092-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R130,131 RK73FB2B100J CHIP R 1/8W R209 RK73GB2A101J CHIP R 1/10W R132 RK73GB2A102J CHIP R 1.0K...
Page 60 NXR-700 PARTS LIST RX UNIT (X55-3092-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R291 RK73GB2A122J CHIP R 1.2K 1/10W R417 RK73GB2A000J CHIP R 1/10W R292 RK73GB2A000J CHIP R...
Page 61 NXR-700 PARTS LIST RX UNIT (X55-3092-72) TX UNIT (X56-3112-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation 2SC4725 TRANSISTOR C138,139 CC73GCH1H020B CHIP C 2.0PF ✽ KTC4075E-P(GR TRANSISTOR C140,141...
Page 62 NXR-700 PARTS LIST TX UNIT (X56-3112-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C231 CK73GB1H103K CHIP C 0.010UF C331 CK73GB1H104K CHIP C 0.10UF C233 CC73GCH1H010C CHIP C 1.0PF...
Page 63 NXR-700 PARTS LIST TX UNIT (X56-3112-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C422 CK73GB1H103K CHIP C 0.010UF C521-527 CK73GB1H104K CHIP C 0.10UF C423 CE32BM1E470M CHIP EL...
Page 64 NXR-700 PARTS LIST TX UNIT (X56-3112-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C715 CE32CL1V100M CHIP EL 10UF 35WV C938 CK73FB0J106K CHIP C 10UF C716 CK73GB1H103K CHIP C 0.010UF...
Page 65 NXR-700 PARTS LIST TX UNIT (X56-3112-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation L405 L41-3385-33 SMALL FIXED INDUCTOR(0.33UH) R137 RK73GB2A102J CHIP R 1.0K 1/10W L406 L41-1005-33 SMALL FIXED INDUCTOR(10UH)
Page 66 NXR-700 PARTS LIST TX UNIT (X56-3112-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R236 RK73GB2A821J CHIP R 1/10W R340 RK73GB2A101J CHIP R 1/10W R240 RK73GB2A104J CHIP R...
Page 67 NXR-700 PARTS LIST TX UNIT (X56-3112-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R464 RK73GB2A221J CHIP R 1/10W R538 RK73GB2A102J CHIP R 1.0K 1/10W R465 RK73GB2A000J CHIP R...
Page 68 NXR-700 PARTS LIST TX UNIT (X56-3112-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R614 RK73GB2A332J CHIP R 3.3K 1/10W R942 RK73GB2A000J CHIP R 1/10W R615 RK73GB2A471J CHIP R...
Page 69 NXR-700 PARTS LIST TX UNIT (X56-3112-72) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation IC807 NJM78M05DL1AZB ANALOGUE IC IC808,809 1B NJM7808FA-ZB BI-POLAR IC IC810 TK11230CMCL-G BI-POLAR IC IC811...
Page 70: Exploded View
NXR-700 EXPLODED VIEW IC12 : N09-2292-05 IC11 D : N30-2606-48 (M2.6 x 6) : N30-3035-43 (M3 X 35) X45-385 : N32-3006-43 (M3 x 6) G : N32-4008-43 (M4 x 8) IC10 H : N67-3008-48 (M3 x 8) 703x3 : N80-2006-43 (Ø2 x 6) : N80-2608-43 (Ø2.6 x 8)
Page 71 NXR-700 EXPLODED VIEW 17x3 45-385 IC329 X53-414 IC808 IC29 IC24 IC25 X53-413 703x4 X55-309 EXCITER FINAL CONTROL Parts with the exploded numbers larger than 700 are not supplied. If a part reference number is listed in a box on the exploded view of the PCB, that part does not come with the PCB.
Page 72: Packing
NXR-700 PACKING 10 Instruction manual (B62-2114-30) 36 Blade fuse (15A/32V) Protection bagx2 (F05-1537-05) 54 Bracket (Side) 34 15P plug (J29-0725-04)x2 (E37-1381-05) Protection bagx4 Pamphlet Protection bag 3 Front glass (B10-2781-04) Pamphlet Pamphlet 58 Handle (K01-0421-05) Pamphlet 745 Protection sheet Pamphlet...
Page 73: Trouble Shooting
Connect a cross-wired RS-232C cable to COM port on *2: Appearing this information means the boot program at the front panel of NXR-700. Plug the other end of the the RF control MPU (IC34) is correctly working. cable to PC. (See Fig. 2.)
Page 74 NXR-700 TROUBLE SHOOTING 1-2. Hardware Traceability (Method 1) ■ Procedure for IC703 (Main MPU) traceability Abnormal Power Source Voltage Conﬁ rmation of IC329 (pin 5) output condition Test Point Normal Output Voltage Remove R711 and R721. IC329 (pin 4) 3.3VDC If the voltage is 3.3VDC, IC703 is malfunctioning.
Page 75 NXR-700 TROUBLE SHOOTING ■ Traceability Procedure of IC323 (RX_DSP) Conﬁ rmation of Power Source Voltage Abnormal Conﬁ rmation of IC307 (pin 1) output condition Test Point Normal Output Voltage Remove R505. If the output voltage is 1.5VDC, IC307 (pin 1) 1.5VDC...
Page 76 NXR-700 TROUBLE SHOOTING ■ Traceability Procedure of IC17 (Flash Memory of RF control MPU) Abnormal Conﬁ rmation of Power Source Voltage Conﬁ rmation of IC329 (pin 5) output. condition Test Point Normal Output Voltage Remove R159 and if 3.3VDC, one of IC17, IC34, IC329 (pin 5) 3.3VDC...
Page 77 Correct condition Parts other than IC34 are malfunctioning. 1-3. Hardware traceability (Method 2) The NXR-700 control circuit executes the following pro- 5. The Main MPU (IC703) conﬁ rms the operational status of cedures when the system starts up. the Modem control MPU (IC325) and the RF control MPU (IC34) by using 115.2kbps UART communications and...
Page 78 NXR-700 TROUBLE SHOOTING ■ External DC 13.2V Power Source applied to the NXR-700 Terminal Refer to the power supply diagram sequence below. Audio AMP (IC29) DC/DC converter LED, Option (IC10, Q2) 50MPU 5V_AVR (IC16) RF_Control_MPU I/O (IC34) Switched by Modem Control...
Page 79 NXR-700 TROUBLE SHOOTING ■ Start-up of each Control Block • Modem Control MPU Block • Main MPU Block Component elements: · Modem control MPU: IC325 Component elements: · Flash memory: IC314 · Main MPU: IC703 · RX DSP: IC323 · Flash memory: IC702 ·...
Page 80 X53-414 Note: For the X53-414, a UPC code and UPC barcode is Control Unit (X53-413) not printed on the KENWOOD ESN Label. If necessary, cut the label at the cut-off line and attach only the serial number. Control Unit (X53-414)
Page 81: Adjustment
NXR-700 ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Speciﬁ cations Frequency Range 136 to 174MHz 1. Standard Signal Generator Modulation Frequency modulation and external modulation (SSG) Output 0.1µV to greater than 1mV Input Impedance 50 2. RF Power Meter...
Page 82 NXR-700 ADJUSTMENT Flat cable (36-pin) about 256mm (E37-0979-05) 1.5MHz 1.5MHz 3dB max. ANT Jig for BPF adjustment (E30-3418-08) BPF center frequency (Production default) E2: 145MHz Pass bandwidth: ±1.5MHz at 3dB Fig. 1 Test Signaling 7.5kHz 7.5kHz ■ Analog max. RX (Decode Signaling)
Page 83 NXR-700 ADJUSTMENT Adjustment Points TX IN PWR CONT PA CURR PWR PRT ANT SW CN19 RX ANT FINAL UNIT (X45-3852-71) Component side VR1: Coupler ADJ VR2: High Transmit Power (Pre ADJ) CN46 CN40 CN41 RX UNIT (X55-3092-72) RX ANT Component side...
Page 84 NXR-700 ADJUSTMENT Alignment Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 1. Setting 1) Connect the DC power output to the rear panel DC terminal (13.2V). 2) Connect the front panel COM port (D-sub 9-pin connector) to the PC serial port with a cross-wied cable.
Page 85 NXR-700 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 9. Transmit 1) A: Low Check 1.0V or more VCO Lock Voltage 2) A: High 3.8V or less (Check) 3) B: Low 1.0V or more 4) B: High 3.8V or less...
Page 86 NXR-700 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 15. High 1) Center Power meter Rear TX ANT Value: 1024 Fixed value writing Transmit Power (Pre ADJ) Final ±0.5W 16. Coupler 1) Center...
Page 87 NXR-700 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 21. Maximum 1) Channel: 3 (Center) Deviation Rear TX ANT ±4.1kHz ±0.2kHz Deviation Wide/Narrow: Analog Wide 5k meter Front (Analog) Connect the deviation meter Connect the deviation me- to the TX ANT end via the ATT.
Page 88 NXR-700 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 23. QT 2) Channel: 3 (Center) Deviation Rear TX ANT ±0.6kHz ±0.05kHz Deviation Wide/Narrow: Analog Wide 4k meter 3) Channel: 3 (Center) ±0.35kHz ±0.05kHz...
Page 89 NXR-700 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 27. DTMF 1) Channel: 3 (Center) Deviation Rear TX ANT ±2.85kHz ±0.05kHz Deviation Wide/Narrow: Analog Wide 5k meter Connect the deviation meter Connect the deviation me- to the TX ANT end via the ATT.
Page 90 NXR-700 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 30. Transmit 2) Channel: 3 (Center) Deviation Rear TX ANT ±2.4kHz ±0.03kHz Audio Input Wide/Narrow: Analog Wide 4k meter CONTROL (TA) I/O jack TA...
Page 91 NXR-700 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 35. RA Level 2) Wide/Narrow: Analog Wide 4k Rear RX ANT 400mV ±20mV SSG setting AF V.M CONTROL DEV: ±2.4kHz I/O jack RA...
Page 92 NXR-700 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 38. Open 2) SSG output: OFF Rear RX ANT Check The squelch shall be Squelch Oscilloscope TEST/ closed. Audio SPKR jack analyzer SPO (pin...
Page 93 To adjust the KXK-3 (M2) OCXO unit, some preparations are required. 1. The NXR-700 with the KXK-3 (M2) OCXO unit must be warmed up at least 24 hours before the adjustment is made. The environment temperature must be stable.
Page 94: Pc Board
NXR-700 PC BOARD FINAL UNIT (X45-3852-71) Component side view (J79-0379-09) IC12 PA CURR IC11 C190 ANT SW C189 CN19 RX ANT C124 C161 C149 C105 REFLECT C102 C123 C104 J79-0379-09 C/5 C188 CN29 CN27 CN30 CN28 – – Ref. No. Address Ref.
Page 95 NXR-700 PC BOARD FINAL UNIT (X45-3852-71) Component side view (J79-0379-09) CN20 TX IN PWR CONT R145 R142 PA CURR PWR PRT C128 R104 C115 C127 FORWARD C141 J79-0379-09 A/5 9-09 C/5 C900 J901 – C916 R909 C904 C901 C915 R905...
Page 96 NXR-700 PC BOARD FINAL UNIT (X45-3852-71) Foil side view (J79-0379-09) J79-0379-09 A/5 CN24 CN23 – C908 L900 C902 CN26 CN25 – C914 J79-0379-09 E/5 J79-0379-09 C/5 J79-0379-09 B/5 Ref. No. Address Ref. No. Address D902...
Page 97 NXR-700 PC BOARD FINAL UNIT (X45-3852-71) Foil side view (J79-0379-09) R140 – – 79-09 C/5 Component side Layer 1 Layer 2 Layer 3 Layer 4 Foil side...
Page 98 NXR-700 PC BOARD RX UNIT (X55-3092-72) Component side view (J79-0220-09) C147 C131 C100 C109 CN15 CN23 CN27 C665 C113 R364 C164 C179 C154 C168 C158 C663 C214 R116 C220 R103 C151 R106 C175 C195 C132 R120 C138 R123 R128 C194...
Page 99 NXR-700 PC BOARD RX UNIT (X55-3092-72) Component side view (J79-0220-09) CN46 NARROW CN41 WIDE C675 R175 R179 R166 C500 C335 R171 IC15 CN16 CN62 C357 C484 R174 R197 R192 C432 R178 R165 C334 R169 R367 R366 R257 R254 R163 C268...
Page 100 NXR-700 PC BOARD RX UNIT (X55-3092-72) Foil side view (J79-0220-09) C242 C235 C153 C150 C141 C174 R462 C289 C167 C197 C254 C110 C117 R108 C212 C358 C218 C647 R118 C224 C646 C645 C229 C140 C149 R459 C173 C166 C356 C196...
Page 101 NXR-700 PC BOARD RX UNIT (X55-3092-72) Foil side view (J79-0220-09) C645 C644 C643 C642 C641 C640 C639 C638 C637 C636 C635 C624 R295 C192 C176 R101 R115 C198 IC27 IC26 C227 R119 C548 C547 R432 R133 C553 C552 R436 R142...
Page 102 NXR-700 PC BOARD TX UNIT (X56-3112-72) Component side view (J79-0373-09) C151 C811 C805 R801 C801 C812 L801 C803 C161 + CN806 IC802 C810 IC803 C806 R803 C802 IC801 CN303 C808 MB_CV1 R802 CN115 CN116 Q107 CN109 CN119 CN107 CN105 D107...
Page 103 NXR-700 PC BOARD TX UNIT (X56-3112-72) Component side view (J79-0373-09) X401 IC809 8OCXO R418 C415 R415 R416 R414 C410 C409 R412 R410 R411 R404 Q401 IC808 L401 L402 C411 R409 C408 R403 C403 C406 C573 C578 C423 CN406 CN405 REF2...
Page 104 NXR-700 PC BOARD TX UNIT (X56-3112-72) Foil side view (J79-0373-09) C446 R503 R511 C480 C435 C439 IC405 L414 C472 C468 R488 R484 R500 C451 R480 L604 C463 C465 Q416 C447 C620 L413 C613 C461 L412 D608 C462 L602 C623 C614...
Page 105 NXR-700 PC BOARD TX UNIT (X56-3112-72) Foil side view (J79-0373-09) C154 R134 IC104 R137 R891 C158 C435 C427 R888 C439 L408 C160 L405 R889 C437 C425 Q412 R442 C420 R475 R434 IC302 R118 C303 C305 C312 C321 IC306 R324 L301...
Page 106 NXR-700 PC BOARD CONTROL UNIT (X53-4132-XX) -71 : E2 -72 : For service Component side view (J79-0011-29) C372 R389 CN56 R552 SPG 2 R390 R553 C166 + C170 C144 C141 R204 50MPU 50MPU R201 R202 R198 C405 R211 STB1 R208...
Page 107 NXR-700 PC BOARD CONTROL UNIT (X53-4132-XX) -71 : E2 -72 : For service Component side view (J79-0011-29) R535 C104 R534 4 SB C109 IC11 R108 CLEAR/ C106 CODE RXEO SCR_PTT RXEI SCRAMBLE C107 C108 R188 C130 IC10 R107 C105 AOUTL...
Page 108 NXR-700 PC BOARD CONTROL UNIT (X53-4132-XX) -71 : E2 -72 : For service Foil side view (J79-0011-29) R434 C500 C415 C403 C169 R171 R149 C189 R150 C446 C188 R457 R478 R415 C424 R441 C423 R154 C425 C426 R173 R459 R444...
Page 109 NXR-700 PC BOARD CONTROL UNIT (X53-4132-XX) -71 : E2 -72 : For service Foil side view (J79-0011-29) CN69 R475 R149 C204 C446 C188 R160 R161 R168 C477 R428 R429 C418 R430 C437 C419 R406 C396 R283 C212 C216 R195 C213...
Page 110 NXR-700 MEMO...
Page 111 NXR-700 PC BOARD CONTROL UNIT (X53-4140-XX) -10 : E2 -11 : For service CONTROL UNIT (X53-4140-XX) -10 : E2 -11 : For service Component side view (J79-0332-09) Component side view (J79-0332-09) CN713 IC329 C862 S700 R389 C443 C572 L325 IC306...
Page 112 CONTROL UNIT (X53-4140-XX) -10 : E2 -11 : For service Component side view (J79-0332-09) R960 L326 C871 R961 L327 C817 C785 C790 R834 IC724 D03 CF C872 D04 CF IC712 R897 D05 CF C784 D06 CF D07 CF CE1A CF IC713 A10 CF RD CF...
Page 113 IC329 C862 S700 R389 C443 C572 L325 IC306 C818 IC708 L314 Q707 IC725 Q700 C773 R779 C820 C703 IC710 C707 C569 R731 IC726 R733 R727 C728 C449 D03 CF IC308 D04 CF D05 CF D06 CF R388 L313 C814 D07 CF R735 CE1A CF C712...
Page 114 NXR-700 PC BOARD CONTROL UNIT (X53-4140-XX) -10 : E2 -11 : For service Component side view (J79-0332-09) CN713 C506 R442 R449 R423 R401 R487 R505 C526 C527 R535 C538 R530 R911 R686 R541 R403 Q301 R547 R446 R554 C504 R392...
Page 115 NXR-700 PC BOARD CONTROL UNIT (X53-4140-XX) -10 : E2 -11 : For service CONTROL UNIT (X53-4140-XX) -10 : E2 -11 : For service Foil side view (J79-0332-09) Foil side view (J79-0332-09) C574 R680 C861 C570 R730 C730 C747 R319 R318...
Page 116 NXR-700 PC BOARD CONTROL UNIT (X53-4140-XX) -10 : E2 -11 : For service Foil side view (J79-0332-09) C747 C588 C590 C592 C591 C594 C595 R517 C601 R622 R516 C598 R461 R631 R459 R460 R458 C599 C597 R417 C305 R457 C475...
Page 117 C574 R680 C861 C570 R730 C730 IC704 R885 C717 R517 R516 CN716 C864 C863 C437 C426 R417 R552 C475 C544 C471 R398 C442 R567 R569 R912 R527 Q303 CN700 R591 C808 IC707 R890 R935 C360 C359 C813 R934 C834 R951 IC728 Ref.
Page 118 CONTROL UNIT (X53-4140-XX) -10 : E2 -11 : For service Foil side view (J79-0332-09) R319 R318 C355 C362 Q706 IC302 R885 C815 R884 R387 R915 R914 R907 CP91 CP90 L320 C420 C821 C436 C800 CP89 CP88 R875 L318 CP87 R876 IC719 R829 R903...
Page 119 NXR-700 MEMO...
Page 120: Schematic Diagram
NXR-700 SCHEMATIC DIAGRAM POWER MODULE IC10 RA60H1317M1A FINAL UNIT:PA SECTION (X45-3852-71) (A/5) TX H:3.69V TX H:11.7V L:3.31V L:12.4V RX : RX :13.0V TX:100mW RX:0W 3dB ATT TX UNIT C141 X56-311 (A/3)-CN802 RF IN 120p 120p TX H:3.62V L:1.56V RX :0V...
Page 121 NXR-700 SCHEMATIC DIAGRAM FINAL UNIT (PA SECTION) (X45-3852-71) (A/5) TX H:25W ANT SW L:5W RF SW RX :0W DIRECTIONAL COUPLER L8103R C105 C122 C123 R125 CN22 1000p TX ANT L8103R FORWARD REFLECT RF SW C161 C124 CN19 1000p D19,20 RF SW...
Page 122 NXR-700 SCHEMATIC DIAGRAM RX UNIT(X55-3092-72) W:-87dBm N:-87.5dBm CN41 MONITOR_PORT F10-2379-04 C635 C636 C637 C638 C639 C640 C641 C642 C643 C644 C645 C646 0.75p 0.75p 0.75p 0.75p 0.75p 0.75p W:-117.5dBm N:-118dBm 8.67V 2SC5337(QR) 0.96V C647 0.22V 1000p 1000p W02-1940-05 RX_SIGNAL 100p...
Page 123 NXR-700 SCHEMATIC DIAGRAM RX UNIT (X55-3092-72) RF SW W:7.84V W:3.25V L112 W:7.36V N:0V JDP4P02U N:0V L39-1476-05 W:3.64V N:0V W:2.15V N:0V RF AMP L71-0646-15 N:0V RF AMP L71-0663-05 3.3u C140 C149 C166 C173 C234 C241 C288 C307 R459 3SK317-E 180n RD01MUS1-T113 0.01u...
Page 124 NXR-700 SCHEMATIC DIAGRAM RX UNIT (X55-3092-72) L128 DC SW L34-4725-05 L123 CN47 W:-73dBm N:-74dBm SSM3K15TE(F) 3.3u R270 C470 JDP4P02U 470p RF SW C459 DTA144EE 220p DC SW C573 R351 0.01u DETECTOR MA3J742 C461 C477 R285 C510 C577 220p 0.1u 330k 0.1u...
Page 125 NXR-700 SCHEMATIC DIAGRAM RX UNIT (X55-3092-72) RIPPLE FILTER AMP 2SC4116(BL)F OP-AMP R120 R128 LMC7101BIM5 VCO_A:203M 2.31V VCO_B:217M 2.22V CN63 8.15V OUTPUT R433 C113 3 INPUT+ 7p(B) INPUT- C665 8p(B) C175 100p FREQUENCY OSCILLATOR CONTROL 1SV283-KENW,E 2SK508NV(K53) C142 7p(B) 5.5T 0.5p...
Page 126 NXR-700 SCHEMATIC DIAGRAM RX UNIT (X55-3092-72) R377 R379 OP-AMP 2.79V CN64 IC33 LMC7101BIM5 OUTPUT INPUT+ INPUT- C618 100p RIPPLE FILTER AMP 8.09V R405 R167 2SC4116(BL)F R201 R210 R183 R193 R236 C408 R223 C315 R237 FREQUENCY 8.91V CONTROL OSCILLATOR 1.58V RF AMP...
Page 127 NXR-700 SCHEMATIC DIAGRAM RX UNIT (X55-3092-72) CN43 RX_IF_VN CONTROL UNIT X53-414 -CN300 CN42 CN60 RX_PoWER_SAVE CN48 DDS_EN VCO_BAND_SW CN49 PLL1_EN DA_EN CN50 SIF_CLK CN51 SIF_DAT AT RX ANT -47dBm INPUT RX_AUDIO STD Devi W:100mVrms CN52 PLL_PWR_SAVE N: 90mVrms CN66 CN57...
Page 128 NXR-700 SCHEMATIC DIAGRAM TX UNIT(X56-3112-72)(A/3) FREQUENCY E100 C189 C193 C194 CN120 CN104 CN108 CN112 CN116 CONTROL F10-3081-04 CN102 CN106 CN118 CN110 CN114 D107,108 1SV283-KENW,E Q102 R176 L125 D108 C182 C195 R184 L128 2SK508NV(K52) 272-290MHz --> 3.5T 1.5u 0.75p DC SW D112 VCO_A:1.29V...
Page 129 NXR-700 SCHEMATIC DIAGRAM TX UNIT (X56-3112-72) (A/3) VOLTAGE REGULATOR IC104 NJM2386ADL3-09 13.2V 13.2V RIPPLE FILTER AMP 7.69V Q105 R278 9V’ 2SC4116(BL)F R134 8V #1’ R139 470p T:7.84V C163 R:0V C162 C156 470p 470p PRESCALER IC811 PE3511-52 136-154MHz--> L810 L811 C871...
Page 130 NXR-700 SCHEMATIC DIAGRAM TX UNIT (X56-3112-72) (A/3) 13.2V 13.2V SCLK0 SDo0 3-STATE BUFFER IC805 TC7SET126FU-F 8V #1’ 8V #1 oUTY 8V #2 T:7.84V R:0V 3-STATE BUFFER IC806 TC7SET126FU-F C221 L208 C230 R224 R226 oUTY 1000p Q203 CN203 RD01MUS1-T113 L205 VOLTAGE CHK1.0B...
Page 131 NXR-700 SCHEMATIC DIAGRAM TX UNIT (X56-3112-72) (A/3) 13.2V 13.2V 13.2V SCLK0 SCLK0 SCLK0 SDo0 SDo0 SDo0 8V #1 8V #1 8V #1 8V #2 8V #2 8V #2 CN808 CHK1.5B REF_IN 5.99MHz or 10MHz --> IC404 R458 ADF4001BRUZ 100k DGND...
Page 132 NXR-700 SCHEMATIC DIAGRAM TX UNIT (X56-3112-72) (A/3) 13.2V 13.2V 13.2V SCLK0 SCLK0 SCLK0 SDo0 SDo0 SDo0 8V #1 8V #1 8V #1 8V #2 8V #2 VOLTAGE IC704 REGULATOR NJM78M08DL1AZB L416 5V #1 13.2V C430 C427 C462 C458 IC706 VOLTAGE...
Page 133 NXR-700 SCHEMATIC DIAGRAM TX UNIT (X56-3112-72) (A/3) +20dBm +20dBm FINAL UNIT TX oUT 136-154MHz--> X45-385 (A/5) CN802 13.2V 13.2V -CN1 SCLK0 SCLK0 SDo0 SDo0 T:11.82V CN801 R:12.91V FINAL UNIT 13.2V X45-385 (C/5) -CN12 CN804 13.2V SDo1 SDo1 SCLK0 SCLK1 SCLK1...
Page 134 NXR-700 SCHEMATIC DIAGRAM TX UNIT(17SEG) TX UNIT(LED) (X56-3112-72) (C/3) (X56-3112-72) (B/3) Q975 UMG1N DC SW Q976 UMG1N DC SW IC963 SHIFT-REGISTER Q974 UMG1N DC SW Q973 UMG1N DC SW Q972 UMG1N IC962 SHIFT-REGISTER DC SW Q971 UMG1N CN960 CN920 LED 10...
Page 135 NXR-700 SCHEMATIC DIAGRAM TX UNIT (LED) (X56-3112-72) (B/3) SHIFT-REGISTER IC923 BU4094BCFV STRB DATA SHIFT-REGISTER SHIFT-REGISTER IC924 IC925 BU4094BCFV BU4094BCFV STRB STRB DATA DATA Q’S Q’S Q’S 3-STATE BUFFER IC922 TC7SET126FU-F R922 oUTY C920 0.1u 3-STATE BUFFER 3-STATE BUFFER IC920 IC921...
Page 136: Optional Accessories
NXR-700 OPTIONAL ACCESSORIES: KES-5 (EXTERNAL SPEAKER) When Using an External Speaker Speciﬁ cations 1. Make sure the unit’s power is tuned off. Maximum input power ............ 40W 2. When using the external speaker, remove the jumper Impedance .................4 lead from the connector, and attach the speaker cable.
Page 137 NXR-700 MEMO...
Page 138 NXR-700 MEMO...
Page 139: Specifications
Without *1: Analogue measurements made per TIA/EIA ......25kHz: 55dB 20kHz: 55dB 12.5kHz: 50dB 603A. Modulation ... 16K0F3E, 14K0F3E, 14K0F2D, 12K0F2D, 8K50F3E, 7K50F2D, 8K30F1E, 8K30F1D, 8K30F7W, JVC KENWOOD Corporation reserves the right to change 4K00F1E, 4K00F1D, 4K00F7W, 4K00F2D speciﬁ cations without prior notice or obligation.
Page 140 NXR-700...
Page 141 NXR-700 NXR-700 PC BOARD PC BOARD FINAL UNIT (X45-3852-71) FINAL UNIT (X45-3852-71) Component side view (J79-0379-09) Component side view (J79-0379-09) CN20 TX IN IC12 PWR CONT R145 R142 PA CURR PWR PRT C128 R104 IC11 C115 C190 ANT SW C127...
Page 142 NXR-700 NXR-700 PC BOARD PC BOARD FINAL UNIT (X45-3852-71) FINAL UNIT (X45-3852-71) Foil side view (J79-0379-09) Foil side view (J79-0379-09) R140 J79-0379-09 A/5 CN24 CN23 – C908 L900 C902 CN26 CN25 – – C914 – J79-0379-09 E/5 J79-0379-09 C/5 J79-0379-09 B/5 Ref.
Page 143 NXR-700 NXR-700 PC BOARD PC BOARD CONTROL UNIT (X53-4132-XX) -71 : E2 -72 : For service CONTROL UNIT (X53-4132-XX) -71 : E2 -72 : For service Component side view (J79-0011-29) Component side view (J79-0011-29) C372 R389 CN56 R552 SPG 2...
Page 144 NXR-700 NXR-700 PC BOARD PC BOARD CONTROL UNIT (X53-4132-XX) -71 : E2 -72 : For service CONTROL UNIT (X53-4132-XX) -71 : E2 -72 : For service Foil side view (J79-0011-29) Foil side view (J79-0011-29) CN69 R475 R434 C500 C415 C403...
Page 145 NXR-700 PC BOARD CONTROL UNIT (X53-4140-XX) -10 : E2 -11 : For service CONTROL UNIT (X53-4140-XX) -10 : E2 -11 : For service Component side view (J79-0332-09) Component side view (J79-0332-09) CN713 IC329 C862 S700 R389 C443 C572 L325 IC306...
Page 146 NXR-700 PC BOARD CONTROL UNIT (X53-4140-XX) -10 : E2 -11 : For service CONTROL UNIT (X53-4140-XX) -10 : E2 -11 : For service Foil side view (J79-0332-09) Foil side view (J79-0332-09) C574 R680 C861 C570 R730 C730 C747 R319 R318...
Page 147 NXR-700 NXR-700 PC BOARD PC BOARD RX UNIT (X55-3092-72) RX UNIT (X55-3092-72) Component side view (J79-0220-09) Component side view (J79-0220-09) CN46 NARROW CN41 WIDE C147 C675 R175 C131 R179 R166 C500 C335 R171 IC15 C100 CN16 CN62 C109 C357 C484...
Page 148 NXR-700 NXR-700 PC BOARD PC BOARD RX UNIT (X55-3092-72) RX UNIT (X55-3092-72) Foil side view (J79-0220-09) Foil side view (J79-0220-09) C242 C235 C153 C150 C141 C174 R462 C289 C167 C197 C254 C110 C117 R108 C212 C358 C218 C647 R118 C224...
Page 149 NXR-700 NXR-700 PC BOARD PC BOARD TX UNIT (X56-3112-72) TX UNIT (X56-3112-72) Component side view (J79-0373-09) Component side view (J79-0373-09) C151 C811 C805 R801 C801 C812 L801 C161 + C803 CN806 IC802 C810 IC803 C806 R803 C802 X401 IC801 CN303...
Page 150 NXR-700 NXR-700 PC BOARD PC BOARD TX UNIT (X56-3112-72) TX UNIT (X56-3112-72) Foil side view (J79-0373-09) Foil side view (J79-0373-09) R134 C154 C446 IC104 R137 R891 C158 R503 R511 C480 C435 C427 R888 C439 L408 C160 IC405 L414 L405 R889...
Page 151 POWER MODULE IC10 RA60H1317M1A FINAL UNIT:PA SECTION (X45-3852-71) (A/5) TX H:3.69V TX H:11.7V L:3.31V L:12.4V RX : RX :13.0V TX:100mW RX:0W ANT SW TX H:25W L:5W 3dB ATT RF SW RX :0W DIRECTIONAL COUPLER TX UNIT C141 C105 L8103R C122 C123 R125 CN22...
Page 152 RX UNIT(X55-3092-72) RF SW W:3.25V W:7.84V L112 CN43 RX_IF_VN CONTROL UNIT W:-87dBm JDP4P02U W:7.36V N:0V N:0V L39-1476-05 L128 X53-414 -CN300 N:-87.5dBm W:3.64V N:0V L34-4725-05 DC SW N:0V W:2.15V RF AMP L123 CN47 W:-73dBm CN41 MONITOR_PORT L71-0646-15 RF AMP N:0V N:-74dBm 3.3u C140 C149...
Page 153 TX UNIT(X56-3112-72)(A/3) FREQUENCY VOLTAGE CN104 CN108 CN112 CN116 CN120 CONTROL E100 C189 C193 C194 +20dBm +20dBm CN102 CN106 CN110 CN114 CN118 F10-3081-04 REGULATOR FINAL UNIT D107,108 IC104 136-154MHz--> TX oUT 1SV283-KENW,E Q102 NJM2386ADL3-09 X45-385 (A/5) D108 C182 13.2V 13.2V 13.2V 13.2V 13.2V 13.2V...
Page 154 TX UNIT(17SEG) TX UNIT(LED) (X56-3112-72) (C/3) (X56-3112-72) (B/3) Q975 UMG1N DC SW Q976 UMG1N DC SW IC963 SHIFT-REGISTER Q974 UMG1N DC SW Q973 UMG1N DC SW SHIFT-REGISTER IC923 Q972 BU4094BCFV UMG1N IC962 STRB SHIFT-REGISTER DC SW DATA SHIFT-REGISTER SHIFT-REGISTER IC924 IC925 BU4094BCFV BU4094BCFV...
Page 155 IC12 : N09-2292-05 17x3 IC11 D : N30-2606-48 (M2.6 x 6) X45-385 : N30-3035-43 (M3 X 35) : N32-3006-43 (M3 x 6) IC329 G : N32-4008-43 (M4 x 8) IC10 H : N67-3008-48 (M3 x 8) 703x3 : N80-2006-43 (Ø2 x 6) : N80-2608-43 (Ø2.6 x 8) : N87-2608-48 (Ø2.6 x 8) X53-414...
Page 156 NXR-700 APPENDIX 1 (BLOCK DIAGRAM) D11,16 FINAL UNIT L8103R Q203 Q202 IC811 TX UNIT IC300 IC325 IC603 TC7SET126FU-F CONTROL UNIT D19,20 X45-385 A/5 CN802 RD01MUS1 2SC5337 PE3511-52 30625MGP490GU IC10 XC6204B332M X56-311 A/3 BER_CLK BER_CLK_L CN22 RKP351KW-1P2 136~154MHz CN402 X53-414 RA60H1317M1A...
Page 157 D11,16 FINAL UNIT Q203 L8103R Q202 X45-385 A/5 RD01MUS1 CN802 D19,20 2SC533 IC10 136~154MHz CN22 RKP351KW-1P2 RA60H1317M1A 136~154MHz D201 IC201 HSM88AS-E NJM2904E-ZB IC201 TX ANT IC701 NJM2904E-ZB BH2220FVM INA195AIDBVT CN19 Q102 HSB88WS D_PC HSB88WS X45-385 2SK508NV(K52) CN29 VCo_MoD SSM3K15TE(F) 272~290MH Q105 CN20 290~3...
Page 158 IC300 IC811 Q202 TX UNIT IC603 TC7SET126FU-F 30625M PE3511-52 2SC5337 BER_CLK BER_CLK_L XC6204B332M X56-311 A/3 CN402 IC301 IC705 TC7SET126FU-F 3.3C NJM78M05DL1AZB BER_EN BER_DAT CN402 BER_DAT_L IC810 3.0V TK11230CMCL-G Q104 2SC3356-A(R24) 3.0V IC706 NJM78M05DL1AZB 2~290MHz 290~308MHz Q103 Q204,Q205 2SK508NV(K52) SSM3J01F IC808 Q304 CN801 NJM7808FA-ZB...
Page 159 IC325 CONTROL UNIT 30625MGP490GU X53-414 REF_SW,REF_SW2 EXT_EXiST,REF_EXiST REF_iN_oUT,oX_SDi2 oCXo_VR_EN,oCXo_oN oCXo_EXIST,oCXo_CURR VCXo_DA_EN,REF_LDT PLL_19_EN,PLL_19_CE oX_SDo2,oX_SCLK2 CN400 oX_SCL,oX_SDA X56-311 A/3 internal 33MPU CN805 SPEAKER TEST/SPKR DiPSW1,2 S700 RX_PWR_SAVE,AMP_SW,AF_MUTE, EVoL_DATA,EVoL_LD,EVoL_CLK Q22,Q23 oCXo_ST_G,oCXo_ST_R,BEEP,PWR_ST_R 2SD2114K(W) SMD185F-2 RT1N441M-T111 CN401 Over Ao1_N 2SA1955A-F VoLUME_iN current CN401 Protection Over 50MPU_CoNT current 80ANi...
Page 160: Appendix 1 (Block Diagram)
NXR-700 APPENDIX 1 (BLOCK DIAGRAM) 85F-2 CONTROL UNIT X53-413 TX UNIT TX UNIT SR_CLK,SR_DATA CN920 CN960 SR_oE,STB X56-311 B/3 X56-311 C/3 CN921 50MPU 50MPU 50MPU 50MPU IC920 TC7SET126FU-F STB1,CLK,oE SR_CLK STB,SR_CLK SR_oE,STB1 STB1 BCFV IC960 D960 SR_oE Q960~Q963 BU4094BCFV PSA05-11SRWA...
Page 161 JDP4P02U X56-312 CN407 TA75S01F-F LNA_VE IC30 BUFF D9,D10 D13,D14 2SC5337(QR) W02-1940-05 RD01MUS1 3SK317-E JDP4P02U XF1 JDP4P02U 136~154MHz RX ANT WIDE/ 3SK317-E RD01MUS1 NARROW WIDE/ NARROW 2SC4725 2SC4116(BL)F BUFF 2SK508NV(K52) 2SC4725 2SC4725 UPB1509GV 2SC4725 Ripple 9VCo Filter BUff 2SC4725 IC33 IC11 2nd Lo BUFF LMC7101BiM5...
Page 162 2SJ484 IC707 PROM NJM7805FA LTC6101BiS5-F AD7418ARMZ oX_SCL SSM3K15TE EM639165TS6iG RD/WR oX_SDA A2~A15 WE2/DQM2 SDRAM WE3/DQM3 D16~D31 RD/CASS oCXo_CURR CS3,RAS SSM6L05FU CKE,CKio REF_SW2 IC719 LAN91C111i-NU NLEDA J700 NLEDA LAN_iNT NLEDB NLEDB X56-311 EEDi TP1+,TP1- TPi+,TPi- A1~A15 CN803 IC720 TP0+,TP0- EEDo TPo+,TPo- SSM3K15TE AD5231BRU10 AT93C46DN-SH...
Page 163 ADSP_CK_SFT,SC_SH,E_PTT_SH 3DA_EN STXo_ARXo A_RXo SDi1,SC SYS_RST SYS_RST IC325 IC28 SC_SH,E_PTT_SH TC7SH126FU-F IC32,33 io1~io6, SRXo_ATXo A_TXDo Ai1~Ai3, Hi_VoL_DET 50MPU_CoNT 50MPU_CoNT E_PTT Hi_VoL_DET IC325 50MPU 50MPU DC50 DC50 33SH 33SH 33MPU 33MPU 50MPU_A 50MPU_A S700 33MPU_A 33MPU_A DiPSW3,DiPSW4 A16C_CK_SFT,ADSP_CK_SFT BER_CLK,BER_DAT BER_CLK,BER_DAT CN58 IC300,301 2SC4738F A16C_CK_SFT...
Page 164 3DA_EN,8AD_EN,SDo1 SDi1,SCLK1 io1~io6,SC CN58 Ai1~Ai3,EMoN, E_PTT Surge protect SC_SH E_PTT_SH E_PTT IC32,33 CoNTRoL I/O TC7SH126FU-F RA,TA,RD,TD AUDio BLoCK BER_DAT BER_CLK AUDIO BLOCK D_iN D_oUT CN56 CN58 IC29 66GW LA4425A CN59 2SJ506-E(S) KRC401-P RT1N141M-T111 AMP_SW IC23 IC41 74AHC1G00GW KIC7SH08FU-P T1N141M-T111 AF_MUTE CN58 RT1N441M-T111 oPTioN...
Page 165 D11,16 FINAL UNIT IC300 IC325 L8103R Q203 Q202 IC811 TX UNIT X45-385 A/5 IC603 TC7SET126FU-F 30625MGP490GU CONTROL UNIT D19,20 CN802 RD01MUS1 2SC5337 PE3511-52 IC10 XC6204B332M X56-311 A/3 BER_CLK BER_CLK_L CN22 RKP351KW-1P2 136~154MHz CN402 X53-414 RA60H1317M1A IC705 IC301 136~154MHz TC7SET126FU-F D201 IC201 3.3C NJM78M05DL1AZB...
Page 166 NXR-700 APPENDIX 2 (INTERCONNECTION DIAGRAM) TEST/SPKR (PANEL ViEW) FINAL UNIT CONTROL I/O (PANEL VIEW) X45-385 E/5 TX UNIT CN923 CN905 TX UNIT C N9 6 0 C N9 2 0 X56-311 B/3 VOLUME_IN VOLUME_IN X56-311 C/3 J901 33MPU 33MPU 50MPU...
Page 167 TX UNIT C N960 CN 920 X56-311 C/3 50MPU SR_oE SR_CLK SR_DATA LED 1 LED 10 RX UNIT X55-309 CN42 CN57 D_GND D_GND E2PRoM_S E2PRoM_SDA CoNT_5.0V CoNT_5.0V E2PRoM_S E2PRoM_SCL D_GND D_GND AD_CS AD_CS iF_BW_SW iF_BW_SW AD_DAT_W AD_DAT_WRiTE NC(iF_NW_SW) NC(iF_NW_ AD_CLK AD_CLK 19.2MHz REF_SIG C N 45...
Page 168 TEST/SPKR (PANEL V FINAL UNIT X45-385 E/5 TX UNIT CN923 CN905 C N 920 X56-311 B/3 VOLUME_IN VOLUME_IN J901 33MPU 33MPU 50MPU 33AUD 33AUD PTT_TXD_SCM SR_oE SCM_EN SCM_EN HOOK_RXD_SCM SR_CLK SCM_EN SR_DATA PTT_TXD_SCM PTT_TXD_SCM LED 1 HooK_RXD_SCM HOOK_RXD_SCM LED 10 RoM_SDA T_5.0V RoM_SCL...
Page 169 NEL ViEW) CONTROL I/O (PANEL VIEW) OPTION INT SP CN56 CN804 CoNT_5.0V CoNT_5.0V D_GND D_GND CoNT_5.0V CoNT_5.0V D_GND D_GND D_GND D_GND TEMP_PRT TEMP_PRT ANT_SW ANT_SW DDS_EN DDS_EN/VER VR_EN VR_EN 440_EN 440_EN 132_EN 132_EN 440_CE 440_CE 132_CE 132_CE 2DA_EN 2DA_EN 3DA_EN 3DA_EN 2DA_CE 2DA_CE...
Page 170: Appendix 2 (Interconnection Diagram)
NXR-700 APPENDIX 2 (INTERCONNECTION DIAGRAM) OPTION (OCXO) KXK-3 FINAL UNIT X45-385 A/5 CN806 CN2 0 NC(FAN_CURR2) NC(FAN_CURR2) CN22 TX ANT PA_CURR PA_CURR CN19 MONITOR PORT FAN_CURR FAN_CURR FWD_PWR FWD_PWR RFL_PWR RFL_PWR FAN 1 PWR_PRT PWR_PRT PWR_CONT PWR_CONT FAN_CONT FAN_CONT FAN_CONT2...
Page 171 RX_IF_VN...
Page 172 CONTROL UNIT2 X53-414 CN27 CN23 CN25 FINAL UNIT FINAL UNIT X45-385 C/5 X45-385 B/5 CN28 CN24 CN26 CN30 CN29 PC CONTROL...
Page 173 CN805 CN400 REF_SW2 REF_SW2 REF_SW REF_SW oX_SCL oX_SCL EXT_EXiST EXT_EXiST oX_SDA oX_SDA REF_EXiST REF_EXiST iMP_H_L iMP_H_L REF_iN_oUT REF_iN_oUT oX_SDi2 oX_SDi2 oCXo_VR_EN oCXo_VR_EN oCXo_oN oCXo_oN oCXo_CURR oCXo_CURR oCXo_EXiST oCXo_EXiST VCXo_DA_EN VCXo_DA_EN REF_LDT REF_LDT PLL_19_EN PLL_19_EN PLL_19_CE PLL_19_CE oX_SDo2 oX_SDo2 oX_SCLK2 oX_SCLK2 33MPU 33MPU 19.2MHz REF SIG...
Page 174 TX UNIT D_GND D_GND X56-311 A/3 CN21 CN802 TX SIGNAL CN801 REF_IN(10MHz) CN408 REF_OUT(10MHz) CN403...
Page 175 TEST/SPKR (PANEL ViEW) FINAL UNIT CONTROL I/O (PANEL VIEW) X45-385 E/5 TX UNIT CN923 CN905 TX UNIT C N 9 6 0 C N 9 20 X56-311 B/3 VOLUME_IN VOLUME_IN X56-311 C/3 J901 33MPU 33MPU 50MPU 50MPU 33AUD 33AUD PTT_TXD_SCM OPTION (OCXO) SR_oE SR_oE...
Page 176 NXR-700 CONTROL UNIT1 (X53-4132-XX) APPENDIX 3 AF PA (SCHEMATIC DIAGRAM X53-413) IC29 C190 R163 R441 OP AMP C225 0.1u C436 R469 C103 R293 SHIFT R100 R178 RESISTER R442 BU4094BCFV R294 100p NJM2734V R133 ANALOG SW R127 R448 SCR_PTT 50MPU MULTIPLEXER...
Page 177 CONTROL UNIT1 (X53-4132-XX) R441 SHIFT RESISTER R442 BU4094BCFV MULTIPLEXE R448 SCR_PTT 50MPU SCR_PTT STRB BU4053BCFV DATA SR_CLK R445 R446 R449 R444 POWER SW R443 R457 HN1L02FU(F) Q’S R458 SR_oE 100k R450 CLEAR DATA_iN /CoDE R451 R452 RXEo R453 RXEi R454 TAAD_SW F53-0315-15 MiC_SW...
Page 178 C190 R163 OP AMP C436 C103 R469 R100 R178 NJM2734V 100p R133 R127 ULTIPLEXER C122 100p AoUTPUT DoUTPUT C197 BU4053BCFV 100k 120k R175 A-INPUT R400 OP AMP D-INPUT C128 R102 R401 A+INPUT OP AMP IC12 IC21 D+INPUT R103 100p NJM2732V C177 100p NJM2734V...
Page 179 AF PA IC29 C225 0.1u R293 R294 ANALOG SW IC25 74HC1G66GW CLOCK CLOCK SHIFT SW SHIFT SW IN/oUT L77-1987-05 oUT/IN 2SC4738F C275 16.515072MHz C281 2SC4738F C239 NAND GATE CoNT 1000u25 IC23 74AHC1G00GW AF MUTE SW RT1N141M-T111 oUTY C215 0.1u POWER SW C408 R412 ADSP_CK_SFT...
Page 180 NXR-700 APPENDIX 3 (SCHEMATIC DIAGRAM X53-413) FT SW 4738F Note : The components marked with a dot (•) are parts of layer 1. mV:AC voltage value measured with an electronic voltmeter. The unit is mVrms. V:DC voltage value rms:60% modulation TX signal or RX signal...
Page 181 Lo_Vol_DET Lo_VoL_DET TD_SW TD_SW MiCAD_SW MiCAD_SW 3.3V MiC_SW MiC_SW RXAD_SW RXAD_SW PATH_SW PATH_SW BEEP_SW BEEP_SW TA_SW TA_SW TAAD_SW TAAD_SW R419 EVOL_LD EVOL_LD EVOL_CLK EVOL_CLK XC6209B332P-G PTT_AM16C R474 VOLTAGE REGULATOR EVOL_DATA EVOL_DATA iNSP_SW AF_MUTE AF_MUTE SCM_EN R438 SCM_EN AMP_SW AMP_SW HooK_RXD_SCM R439 iNRA_SW MiC_D_IN...
Page 182 R131 P10/D8 P07/AN17/D7 P03/AN13/D3 P06/AN16/D6 P05/AN15/D5 P02/AN12/D2 P04/AN14/D4 P01/AN11/D1 DQ11 P00/AN10/D0 C120 1000p P117 C121 DQ13 P116 FLASH MEMORY DQ15/A-1 P115 IC17 VSS1 P114 P113 ATOR P112 P111 P110 VSS2 P107/AN07/KI3 TX_DDS_EN P106/AN06/KI2 TX_PLL_440_EN P105/AN05/KI1 R137 SYS_RST TX_PLL_440_CE P104/AN04/KI0 TX_PLL_132_EN P103/AN03 TX_PLL_132_CE P102/AN02...
Page 183 R261 DSP_RS P125 DSP_iNT P126 P127 P50/WRL/WR R254 R267 0/D8 P51/WRH/BHE 7/AN17/D7 P52/RD 6/AN16/D6 R268 5/AN15/D5 P53/BCLK 4/AN14/D4 STB_L P130 P131 PAG_SW_L P132 TX_SR_oE P133 RSSi P54/HLDA R270 P55/HoLD IC34 R269 30625MGP490GU P56/ALE HRDY P57/RDY/CLKoUT TX_SR_EN P134 TX_VR_EN P135 SR_DATA_C P136 SR_CLK_C P137...
Page 184 FM WIDE/NARROW AD_CS RX_8AD_EN R363 iF_BW_SW RX_iF_BW2 R364 AD_DAT_WRiTE NC(iF_NW_SW) RX_iF_BW1 R374 AD_CLK AD_DAT_READ RX_SDi0 R365 CoNT_5.0V PLL_LoCK_DET RX_LoCK_DET R366 NC(AGC_RSSi) PLL2_EN RX_PLL2_EN R367 FM_RSSi RSSi R368 CN61 PLL_PWR_SAVE RX_PLL_PWR_SAVE R375 RX_AUDio R359 SiF_DAT RX_SDo0 R376 SiF_CLK RX_SCLK0 R369 DA_EN RX_3DA_EN R377 PLL1_EN...
Page 185 CONTROL UNIT1 (X53-4132-XX) AF PA IC29 C190 R163 R441 OP AMP C225 0.1u C436 R469 C103 R293 SHIFT R100 R178 RESISTER R442 BU4094BCFV R294 100p NJM2734V R133 ANALOG SW R127 R448 SCR_PTT 50MPU MULTIPLEXER IC25 SCR_PTT STRB AoUTPUT C122 100p 74HC1G66GW DoUTPUT CLOCK...
Page 186 NXR-700 APPENDIX 4 (SCHEMATIC DIAGRAM X53-414) CONTROL UNIT2 (X53-4140-XX) C359 0.1u 33MPU R484 33MPU-2 BUFFER IC300 TC7SET126FU-F oUTY BER_CLK_L BER_EN C360 0.1u BUFFER IC301 TC7SET126FU-F oUTY BER_DAT_L BER_EN CN400 50MPU BER_DAT R516 BER_CLK C516 R517 R518 REF_SW2 R322 REF_SW2 1000p...
Page 187 CONTROL UNIT2 (X53-4140-XX) 0.1u C359 33MPU BUFFER IC300 TC7SET126FU-F oUTY BER_CLK_L BER_EN 0.1u C360 BUFFER IC301 TC7SET126FU-F oUTY BER_DAT_L BER_EN CN400 50MPU BER_DAT BER_CLK REF_SW2 R322 REF_SW2 R927 SYS_RST WP(SYS-RST) REF_SW R323 REF_SW oX_SCL R928 oX_SCL VSS2 EXT_EXiST R324 EXT_EXiST D_D6 oX_SDA R929...
Page 188 R484 33MPU-2 R516 C516 R517 R518 1000p oCXo_ST_G D_A3 oCXo_ST_R R662 BER_DAT_L D_A7 P125 D_D7 R663 BER_CLK_L D_CS1 P126 D_D6 R664 P127 D_D5 D_A11 P50/WRL/WR LASH MEMORY D_D4 D_WR D_A15 P51/WRH/BHE IC314 D_D3 D_RD D_A2 P52/RD D_D2 D_A6 P53/BCLK D_D1 EVOL_LD P130 D_D0...
Page 189 PC CONTROL CN713 33MPU-2 S700 S79-0473-05 EARTH_3 R702 R703 R709 100k R710 100k C818 0.1u C750 BUFFER IC725 RS-232C TC7SH126FU-F DRIVER/RECIEVER D701 IC705 oUTY ADM3202ARUZ 1SS388F C751 C746 C747 0.01u T1oUT C748 R1IN R1oUT C749 T1IN T2oUT T2IN R2IN R2oUT R756 MIC SW Q707...
Page 190: Appendix 4 (Schematic Diagram X53-414)
NXR-700 APPENDIX 4 (SCHEMATIC DIAGRAM X53-414) R960 X53-4140-XX IC329 R960 R961 R961 -11 (for Service) BA33DD0WT Note : The components marked with a dot (•) are parts of layer 1. RTH_3 C781 0.1u NAND GATE IC711 74AHC1G00GW oUTY C850 C799 0.01u...
Page 191 R371 D702 1SS355 HooK_RXD_SCM R932 AMP_SW R372 AMP_SW 33MPU SCM_EN R933 SCM_EN R951 AF_MUTE R373 AF_MUTE iNSP_SW R948 100k EVOL_DATA R374 EVOL_DATA PTT_AM16C R946 BUFFER EVOL_CLK R375 EVOL_CLK IC728 TC7SH126FU-F EVOL_LD R376 EVOL_LD oUTY TAAD_SW R916 TAAD_SW TA_SW R377 TA_SW BEEP_SW R378 BEEP_SW...
Page 192 INT1 R651 INT0 R626 R446 R460 EMU0_D D_A1 HBIL D_D4 IACK R607 R461 EMU1_D BDX2 R608 TX_CoSDTi BDX0 D_D0 C584 D_D5 DVSS6 0.01u DVDD4 CVDD6 R627 TX_DSP_RDY C576 HRDY IC324 CVSS10 D_RD BFSX2 0.01u HDS1 R609 TX_CoLRCK BFSX0 C583 DVSS8 VOCODER CVDD4 D_WR...
Page 193 BU4829 CAN0_RX/AUDATA<2> VSSQ3 VSSQ4 CAN1_TX/AUDATA<1> VSSQ5 CAN0_TX/AUDATA<0> R917 RESERVED/AUDATA<3> VSSQ6 RESERVED/AUDATA<2> VSSQ7 R909 VSSQ8 RESERVED/AUDATA<1> ADTRG/AUDATA<0> VSSQ9 RESERVED/AUDSYNC AVSS_ADC IC703 RESERVED/AUDCK VSSQ10 VSSQ11 TRST VSSQ12 VSSQ13 VSSQ14 VSSQ15 ASEBRK/BRKACK VSSQ16 VSSQ17 VSSQ18 MD6/IoIS16 VSSQ19 VSSQ20 R712 VDD-PLL1 MD4/CE2B R713 VDD-PLL3 MD3/CE2A R714 VDD-PLL2...
Page 194 BU4829FVE IC708 IC720 VOLTAGE R830 AT93C46DN-SH DETECTOR 100k EECS 3.3V VoUT EESK EEDo EEDi TAAD_SW RXAD_SW C802 0.1u CONTROL SW IC721 KIC7SH08FU-P Q706 RT1N141M-T111 oUTY R781 100k R782 100k R794 100k R783 100k AND GATE R784 100k CE2A R785 2.7k C812 R786 100k...
Page 195 CONTROL UNIT2 (X53-4140-XX) C359 0.1u 33MPU R484 33MPU-2 BUFFER IC300 TC7SET126FU-F oUTY BER_CLK_L BER_EN C360 0.1u BUFFER IC301 TC7SET126FU-F oUTY BER_DAT_L BER_EN CN400 50MPU BER_DAT R516 BER_CLK C516 R517 R518 REF_SW2 R322 REF_SW2 1000p R960 oCXo_ST_G X53-4140-XX IC329 R960 R961 WP(SYS-RST) R927 SYS_RST...

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