Kenwood NEXEDGE NX-340 Скачать руководство пользователя страница 44

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(No.RA003<Rev.004>)

VSE

Printed in Japan

JVC KENWOOD Corporation

Communications Systems BU

Содержание NEXEDGE NX-340

Страница 1: ...ation Note Lead free solder used in the board material Sn Ag In Bi melting point 227 Centigrade TABLE OF CONTENTS 1 PRECAUTION 1 4 2 SPECIFIC SERVICE INSTRUCTIONS 1 4 3 DISASSEMBLY 1 13 4 ADJUSTMENT 1 16 5 TROUBLESHOOTING 1 20 This service manual has been revised due to the addition of NX 340 type K3 REVISED This product complies with the RoHS directive for the European market This product uses Le...

Страница 2: ...e title to and ownership of copyrights for firmware embedded in KENWOOD product memories are reserved for JVC KENWOOD Corporation Any modifying reverse engineering copy reproducing or disclosing on an Internet website of the firmware is strictly prohibited without prior written consent of JVC KENWOOD Corporation Furthermore any reselling assigning or transferring of the firmware is also strictly p...

Страница 3: ...pprox 10 12 hours Operating Temperature Range 30 C 60 C 22 F to 140 F Frequency Stability 1 0ppm Antenna Impedance 50Ω Dimensions W x H x D Projections not included with KNB 45L 54 x 122 x 35 3 mm 2 13 x 4 80 x 1 39 in Weight net Radio only 165 g 5 8 oz with KNB 45L 281 g 9 9 oz RECEIVER Sensitivity Digital 0 25µV Analog 0 25µV EIA 12dB SINAD Selectivity Analog 60dB Intermodulation Distortion Anal...

Страница 4: ... goes to the mixer The BPF is adjusted by variable capacitance diodes D400 D401 D402 D403 and D404 The input voltage to the variable capacitance diodes is the regulated voltage output from the DC amplifier IC704 2 1 2 2 First Mixer The signal from the front end is mixed with the first local oscillator signal generated in the PLL circuit by Q404 to produce the first IF frequency of 49 95MHz The res...

Страница 5: ...cking if the input voltage is higher or lower than the preset value To output sounds from the speaker IC710 sends a high signal to the EXTSPSW line and turns IC707 on through Q709 Q710 Q713 and Q716 This explanation is for the external speaker amplifier For the internal loudspeaker amplifier IC710 sends a high signal to the INTSPSW line and turns IC709 on through Q711 and Q714 2 1 3 Transmitter Sy...

Страница 6: ...ep tion The operating frequency is generated by Q6 in transmitting mode and Q5 in receiving mode The oscillation frequency is con trolled by applying the VCO control voltage obtained from the phase comparator IC2 to the variable capacitance diodes D5 D9 D11 and D13 while transmitting and D4 D7 and D12 while receiving The TX RX pin of IC710 goes high in transmission mode causing Q8 to turn off and ...

Страница 7: ...Circuit The Memory circuit consists of the MCU IC710 and EEPROM IC700 The EEPROM has a capacity of 64K bit and stores the chan nel information the last channel data the scan on status and other parameters EEPROM Note The EEPROM stores tuning data Deviation Squelch etc Realign the transceiver after replacing the EEPROM 2 1 5 3 Low Battery Warning The battery voltage is monitored by the MCU IC710 pi...

Страница 8: ...MCU MSK Fleet Sync MDC 1200 The MSK signal is generated in the audio processor IC705 The signal passes through the D A converter inside the baseband IC IC705 and is routed to the VCO When encoding the MSK the microphone input signal is muted 2 1 6 2 Decode QT DQT The output signal from the FM IC IC400 enters the MCU IC710 through IC705 IC710 determines whether or not the QT or DQT matches the pres...

Страница 9: ...r the baseband IC IC705 3R is 3 3V for the IF IC IC400 and is sent when SAVE is not set to ON 33MD is 3 3V for the MCU digital supply Fig 9 Power supply 2 1 8 NXDN Receiving 2 1 8 1 For Digital Data Mode The demodulated signal from IC400 Pin13 is fed into the baseband IC Pin 16 for NXDN decoding The decoded digital data will pass to the MCU through the C BUS The MCU determines whether or not to ou...

Страница 10: ...ugh the TCXO and VCO modulation Fig 11 NXDN transmit system 2 2 SEMICONDUCTOR DATA 2 2 1 MCU 2F405VGT6KFAA TX RX unit IC710 54 43 16 13 79 IC400 FM IC IC705 Baseband IC C BUS SPI Vocoder C BUS NXDN decoder Audio Output To Audio AMP DAC 3 IC710 MCU 23 42 1 4 2 IC705 Baseband IC C BUS SPI Vocoder C BUS NXDN encoder Audio Filter From MIC TCXO VCO ADC 53 80 IC710 MCU Pin No Name I O Function 1 MINVOL ...

Страница 11: ... Unlock voltage for PLL 71 OPT2 I O Option port 2 72 SWDIO I O SWDIO for SWD 73 VCAP_2 2 2uF 74 VSS3 GND 75 VDD5 33MD 76 SWCLK I O SWCLK for SWD 77 CML_SSOUT I SPI chip select for baseband IC 78 CML_EPSCLK I Clock for SPI Pin No Name I O Function 79 CML_EPSO O SPI output 80 CML_EPSI I SPI input 81 EEP_DATAI I Data input for EEPROM 82 EEP_DATAO O Data output to EEPROM 83 EEP_CS O Chip select for EE...

Страница 12: ...XD Q704 Transistor MIC mute switch Q705 Transistor MIC AGC amplifier Q706 Transistor MIC AGC amplifier Q707 FET Level shift RXD Q708 Transistor DC switch EXT PTT Q709 Transistor Q710 control Q710 Transistor DC switch IC707 SB Q711 Transistor Q715 control Q712 Transistor Pop noise mute control Q713 FET AF switch EXT SP Q714 Transistor DC switch IC709 SB Ref No Part Name Description Q715 Transistor ...

Страница 13: ...positive terminal with a soldering iron 9 Note You can remove the TX RX unit from the chassis without removing the solder at the positive terminal However in this case you cannot attach the packing G53 2218 03 that is on the positive terminal to the chassis during as sembly So we advise you to remove the solder on the positive terminal first 4 Remove the FPC from the flat cable connector 10 5 Lift...

Страница 14: ...r is pushed in this state where the two tabs come below the case surface there is a possibility of damaging the two tabs 3 2 2 Assembling the Battery Release Lever 1 Place the lever 2 onto the stopper 1 2 Place the thick spring 3 onto the lever 3 Hook the right and left ends of the thin spring 4 onto the tabs of the stopper then place the thin spring onto the lever 5 4 Slide the shaft through the ...

Страница 15: ...acking with your fingers 3 2 5 Attaching the Antenna Receptacle to the Chassis Screw the antenna receptacle to the chassis in the order shown in the drawing so that the antenna receptacle comes to the cen ter of the case hole 3 2 6 The Nuts of the Volume Knob and Channel Knob Note that the shape color and height of the nuts of the volume knob and channel knob are different from one another The nut...

Страница 16: ...se a slight voltage drop may occur within the power cable between the power supply and the battery jig especially while the transceiver transmits Test Equipment Major Specifications 1 Standard Signal Generator SSG Frequency Range 100 to 520MHz Modulation Frequency modulation and external modulation Output 127dBm 0 1µV to greater than 47dBm 1mV 2 Power Meter Input Impedance 50Ω Operation Frequency ...

Страница 17: ...00 5 485 20000 485 20000 435 20000 435 20000 6 485 40000 485 40000 435 40000 435 40000 7 16 CH K3 RX MHz TX MHz 1 375 05000 375 10000 2 350 05000 350 10000 3 399 95000 399 90000 4 375 00000 375 00000 5 375 20000 375 20000 6 375 40000 375 40000 7 16 No RX TX 1 None None 2 None 20 Hz Square Wave 3 QT 67 0 Hz QT 67 0 Hz 4 QT 151 4 Hz QT 151 4 Hz 5 QT 210 7 Hz QT 210 7 Hz 6 QT 254 1 Hz QT 254 1 Hz 7 D...

Страница 18: ...ter ANT FPU 435 100MHz K2 P M2 M3 485 100MHz K M 375 100MHz K3 50Hz 2 High Trans mit Power 1 TEST CH Low Low Center High High 5 point 2 Baterry Terminal voltage 7 5V 3 PTT ON Power meter Ammeter ANT FPU 5 0W 0 1W 2 0A or less 3 Low Trans mit Power 1 TEST CH Low Center High 3 point 2 Baterry Terminal voltage 7 5V 3 PTT ON Power meter Ammeter ANT FPU 1 0W 0 1W 1 0A or less 4 DQT Balance 1 Note 3 1 T...

Страница 19: ...r filter LPF 3kHz HPF OFF 3 PTT ON Deviation meter Oscillo scope ANT FPU 0 35kHz 40Hz 10 DTMF Deviation Analog Nar row 1 TEST CH Center 2 Deviation meter filter LPF 15kHz HPF OFF 3 PTT ON Deviation meter Oscillo scope ANT FPU 1 5kHz 50Hz 11 MSK Deviation Analog Nar row 1 TEST CH Center 2 Deviation meter filter LPF 15kHz HPF OFF 3 PTT ON Deviation meter Oscillo scope ANT FPU 1 5kHz 50Hz Item Condit...

Страница 20: ...o Analyzer ANT FPU Press Start Auto tuning 5 High RSSI Analog Narrow Note 6 1 TEST CH Low Center High 3 point 2 SSG output 80dBm 22 4uV AF Freq 1kHz Mod Dev 1 5kHz SSG Oscilloscope Audio Analyzer ANT FPU Press Start Auto tuning 5 High RSSI NXDN Very Narrow Note 6 1 TEST CH Low Center High 3 point 2 SSG output 80dBm 22 4uV AF Freq 1kHz Mod Dev 1 5kHz SSG Oscilloscope Audio Analyzer ANT FPU Press St...

Страница 21: ... transceiver the green LED lights Note The data stored in the computer must match the Mod el Name and Model Type when it is written into the EEPROM Do not press the PTT key during data transmission or reception Mode Function User mode For normal use PC mode Used to communication between the transceiver and PC Data programming mode Used to read and write frequency data and other features to and fro...

Страница 22: ...t for 2 seconds The LED will light orange and the trans ceiver will announce Clone 3 Select a channel table number using the Side1 increment channel table and Side2 decrement channel table keys 4 To switch the clone source to wireless clone mode press and hold the PTT and Side2 keys while turning the trans ceiver power ON 5 Wait for 2 seconds The LED will light orange and the trans ceiver will ann...

Страница 23: ...M3 K3 Operating frequency 450 520 MHz Operating frequency 400 470 MHz Operating frequency 350 400 MHz 1 450 000 400 000 350 000 2 452 000 402 000 351 000 3 454 000 404 000 352 000 4 456 000 405 000 353 000 5 458 000 408 000 354 000 6 460 000 410 000 355 000 7 462 000 412 000 356 000 8 464 000 414 000 357 000 9 466 000 416 000 358 000 10 469 000 418 000 359 000 11 470 000 419 000 360 000 12 472 000...

Страница 24: ...g through the fuse 6 B O Connect to pin 5 7 VOLGND GND for volume level 8 EN2 I Rotary switch input 9 EN4 I Rotary switch input 10 GND GND 11 EN3 I Rotary switch input 12 EN1 I Rotary switch input Pin No Name I O Signal Type Function 1 PTT RXD I Digital PTT RXD input 2 MICIN I Analog External MIC input 3 MICO O Analog Internal MIC output 4 OPTDET I Digital External option detection 5 50V O Power D...

Страница 25: ..._2 73 SWDIO 72 OPT2 71 PLL_LD 70 RXD 69 TXD 68 OPT3 67 EN4 66 EN2 65 EN3 64 EN1 63 FM_PDN 62 PF2 61 PF1 60 PTT 59 FM_SDATA 58 FM_SCLK 57 FM_CSN 56 FM_RSTN 55 CML_RDATA 54 CML_CDATA 53 CML_SCLK 52 CML_CSN 51 VDD4 50 VCAP_1 49 TEST_RX 48 TEST_TX 47 INSPSW 46 TX RX 45 ASSISW 44 EXTSPMT 43 MIC_MT 42 REDLED 41 GRNLED 40 OPTDET 39 OPT1 38 33MSC 37 TH_DET 36 BUSY 35 RSSI 34 BATT 33 5TC 32 5RC 31 HSDENC 3...

Страница 26: ... No RA003 Rev 004 2 2 MEMO ...

Страница 27: ...3 A 4B Q604 A 5A Q605 A 5A Q606 A 1B Q704 A 3B Q705 A 3B Q706 A 3B Q707 A 3A Q708 A 3A Q709 A 5B Q710 A 5B Q711 A 4A Q712 A 4A Q713 A 5A Q714 A 4A Q715 A 4A Q716 A 5A DIODE D200 A 3B D600 A 1B D601 A 5A D602 A 5A D603 A 1B D604 A 5A D700 A 3B D701 A 3B D702 A 3A D703 A 3A RESISTOR R222 A 3B R223 A 4B R226 A 4B R228 A 3B R230 A 5B R231 A 5B R233 A 5B R235 A 4B R237 A 4A R238 A 4A R241 A 4B R242 A 4...

Страница 28: ...36 B 3A R37 B 2A R38 B 3A R39 B 2A R40 B 3A R41 B 2A R42 B 3A R43 B 3A R44 B 3A R45 B 2A R46 B 3A R48 B 3A R51 B 1A R52 B 1A R53 B 2A R54 B 2A R55 B 2A R56 B 2A R58 B 2A R200 B 3A R202 B 3A R210 B 3A R211 B 3A R212 B 3A R213 B 3A R214 B 3B R215 B 3B R217 B 3B R219 B 3B R224 B 3B R225 B 4B R227 B 4B R229 B 4A R232 B 4B R236 B 4B R239 B 4B R249 B 4B R250 B 5B R251 B 4B R252 B 4B R254 B 3A R400 B 1B ...

Страница 29: ... BPF BPF LNA Q405 Mixer Q404 MCF XF400 FM IC IC400 IF1 49 95MHz IF2 450kHz 1 13 IC707 J601 16 26 AF 1kHz 10 4 0 88Vrms 460mVrms 15 28mVrms 0 63Vrms 17 16 90 98mVrms RF Center Frequency IF AMP Q403 86 2mVrms N 107dBm 82mVrms Q9 Q10 2 16dBm AF 1KHz G1 D G1 D 20 21 24 ANT D203 D204 TX VCO MIC f1 f2 14 17dBm f3 13 26dBm f1 f2 13 15dBm f3 12 34dBm f1 K M f2 K2 P M2 M3 f3 K3 N 119 5dBm N 104dBm N 116dBm...

Страница 30: ..._SSOUT CML_EPSCLK CML_EPSI EEP_DATA I INT CML_IRQN FM_CSN TX RX FM_RSTN INSPSW CML_SCLK CML_CDATA ASSISW CML_CSN FM_SCLK FM_PDN TXD CML_EPSO EEP_DATA O EEP_CS EEP_SCLK EEP_WP REDLED EEP_CS EEP_DATA O EEP_SCLK EEP_WP EEP_DATA I 33M FM_CSN FM_SCLK FM_PDN FM_RSTN FM_SDATA AMP HSDDEC LSDI CML_CDATA CML_CSN CML_SCLK CML_EPSO CML_EPSI CML_RDATA CML_EPSCLK CML_IRQN CML_SSOUT LSDI HSDDEC 33M HSDENC LSDO L...

Страница 31: ...mbers BEWARE OF BOGUS PARTS Parts that do not meet specifications may cause trouble in regard to safety and performance We recommend that genuine parts be used x_ in a description column shows the number of the used part Contents Exploded view of general assembly and parts list Electrical parts list Packing materials and accessories parts list 3 2 3 4 3 12 ...

Страница 32: ...ev 004 Exploded view of general assembly and parts list D D B C E A 26 23 39 38 15 20 16 37 36 29 28 9 24 34 33 19 17 25 18 10 21 22 F F F F F 12 4 31 35 32 3 Block No M1MM 7 8 6 13 14 1 2 27 11 TX RX UNIT 01 5 41 40 ...

Страница 33: ...ACKING VE 26 J19 5578 12 HOLDER SP 27 J19 5579 03 HOLDER VE 28 J19 5580 03 HOLDER ASSY 29 J87 0054 05 FPC VOLUME SELECTOR 31 J99 0783 04 ADHESIVE SHEET PTT 32 K29 9612 03 BUTTON KNOB PTT 33 K29 9614 03 KNOB VOLUME 34 K29 9615 03 KNOB SELECTOR 35 K29 9625 03 BUTTON KNOB PF 36 R31 0670 25 VARIABLE RESISTOR 37 S60 0450 05 ROTARY SWITCH 38 T07 0805 05 SPEAKER 39 T91 0659 15 MIC ELEMENT 40 G10 1854 04 ...

Страница 34: ...9 1SV325F VARIABLE CAPACITANCE DIODE NX 340_K NX 340 U _K NX 340_M D9 1SV323F VARIABLE CAPACITANCE DIODE NX 340_K2 NX 340_K3 NX 340 U _K2 NX 340_M2 NX 340_M3 NX 340_P D10 KDS160E P DIODE D11 BBY57 02V VARIABLE CAPACITANCE DIODE D12 BBY57 02V VARIABLE CAPACITANCE DIODE D13 BB555 02V DIODE D14 1SS390 DIODE D15 1SS390 DIODE D200 UDZW5 1 B ZENER DIODE D201 RN142S DIODE D202 RN142S DIODE D203 RN141S DI...

Страница 35: ... NX 340_M3 NX 340_P C81 CC73HCH1H180J C CAPACITOR 18PF J NX 340_K3 C82 CC73HCH1H101J C CAPACITOR 100PF J C83 CC73HCH1H101J C CAPACITOR 100PF J Symbol No Part No Part Name Description Local C84 CK73HB1H103K C CAPACITOR 0 010UF K C85 CK73HB1A473K C CAPACITOR 0 047UF K C86 CK73HB1E103K C CAPACITOR 0 010UF K C87 CC73HCH1H101J C CAPACITOR 100PF J C88 CC73HCH1H101J C CAPACITOR 100PF J C89 CK73HB1A224K C...

Страница 36: ... 0 010UF K Symbol No Part No Part Name Description Local C424 CK73HB1E103K C CAPACITOR 0 010UF K C426 CK73HB1E103K C CAPACITOR 0 010UF K C428 CC73HCH1H020B C CAPACITOR 2 0PF B C429 CC73HCH1H100C C CAPACITOR 10PF C NX 340_K NX 340 U _K NX 340_M C429 CC73HCH1H090B C CAPACITOR 9 0PF B NX 340_K2 NX 340 U _K2 NX 340_M2 NX 340_M3 NX 340_P C429 CC73HCH1H080B C CAPACITOR 8 0PF B NX 340_K3 C430 CC73HCH1H02...

Страница 37: ...86 CK73GB0J106K C CAPACITOR 10UF K C487 CK73HB1A104K C CAPACITOR 0 10UF K C488 CK73HB1A224K C CAPACITOR 0 22UF K C489 CK73HB1A105K C CAPACITOR 1 0UF K C491 CK73HB1A105K C CAPACITOR 1 0UF K C492 CC73HCH1H101J C CAPACITOR 100PF J Symbol No Part No Part Name Description Local C493 CC73HCH1H101J C CAPACITOR 100PF J C494 CK73HB1A224K C CAPACITOR 0 22UF K C495 CK73HB1A104K C CAPACITOR 0 10UF K C496 CK73...

Страница 38: ...W R16 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R17 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R18 RK73HB1J152J MG RESISTOR 1 5K J 1 16W R19 RK73HB1J391J MG RESISTOR 390 J 1 16W R20 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R21 RK73HB1J105J MG RESISTOR 1 0M J 1 16W R22 RK73HB1J103J MG RESISTOR 10K J 1 16W R24 RK73HB1J474J MG RESISTOR 470K J 1 16W R25 RK73HB1J105J MG RESISTOR 1 0M J 1 16W NX 340_K NX 340 U _K NX 3...

Страница 39: ...X 340_K3 R433 RK73HB1J562J MG RESISTOR 5 6K J 1 16W R434 RK73HB1J100J MG RESISTOR 10 J 1 16W Symbol No Part No Part Name Description Local R435 RK73HB1J181J MG RESISTOR 180 J 1 16W NX 340_K NX 340_K2 NX 340 U _K NX 340 U _K2 NX 340_M NX 340_M2 NX 340_M3 NX 340_P R435 RK73HB1J271J MG RESISTOR 270 J 1 16W NX 340_K3 R436 RK73HB1J474J MG RESISTOR 470K J 1 16W NX 340_K NX 340_K2 NX 340 U _K NX 340 U _K...

Страница 40: ...J MG RESISTOR 0 0 J 1 10W R984 RK73GB2A000J MG RESISTOR 0 0 J 1 10W R987 RK73GB2A000J MG RESISTOR 0 0 J 1 10W Symbol No Part No Part Name Description Local R988 RK73GB2A000J MG RESISTOR 0 0 J 1 10W R991 RK73HB1J101J MG RESISTOR 100 J 1 16W R992 RK73HB1J101J MG RESISTOR 100 J 1 16W R993 RK73HB1J101J MG RESISTOR 100 J 1 16W R994 RK73HB1J101J MG RESISTOR 100 J 1 16W R995 RK73HB1J101J MG RESISTOR 100 ...

Страница 41: ...CN913 E23 1167 05 TERMINAL CN914 E23 1167 05 TERMINAL CN915 E23 1167 05 TERMINAL CN916 E23 1167 05 TERMINAL CN917 E23 1167 05 TERMINAL CN918 E23 1167 05 TERMINAL CN919 E23 1167 05 TERMINAL CN920 E23 1167 05 TERMINAL CN921 E23 1167 05 TERMINAL CP1 RK75HA1J101J CHIP COM 100 J 1 16W CP20 RK75HA1J473J CHIP COM 47K J 1 16W CP21 RK75HA1J473J CHIP COM 47K J 1 16W CP22 RK75HA1J102J CHIP COM 1 0K J 1 16W C...

Страница 42: ...0_P 9 H52 2588 01 ITEM CARTON CASE NX 340_M NX 340_M2 10 J19 5577 03 HOLDER SP MIC 11 J29 0734 15 BELT CLIP 12 N99 2089 05 SCREW SET 13 T90 1032 65 HELICAL ANTENNA NX 340_K3 13 T90 1039 25 WHIP ANTENNA NX 340_K NX 340_K2 NX 340 U _K NX 340 U _K2 NX 340_P 14 W08 1247 25 AC ADAPTER NX 340_K NX 340_K2 NX 340_K3 NX 340 U _K NX 340 U _K2 14 W08 1327 05 AC ADAPTER NX 340_M3 14 W08 1326 05 AC ADAPTER NX ...

Страница 43: ...MEMO ...

Страница 44: ... No RA003 Rev 004 VSE Printed in Japan JVC KENWOOD Corporation Communications Systems BU ...

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