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Kenwood NX-700 Service Manual

Vhf digital transceiver
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SERVICE MANUAL
SUPPLEMENT
This service manual has been revised due to the modification of the Mixer IC.
This service manual applies to products with B2801161 (except B2801431 to B2801544) or
subsequent serial number. Refer to the NX-700/700H service manual (B51-8822-00) for any
information which has not been covered in this service manual.
This product complies with the RoHS directive for the European market
B5B-7218-00
VHF DIGITAL TRANSCEIVER
NX-700, NX-700H
COPYRIGHT © 2015 JVC KENWOOD Corporation
KMC-36
(Option)
.
This product uses Lead Free solder.
No.RQ079
2015/11

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Summary of Contents for Kenwood NX-700

  • Page 1 This service manual has been revised due to the modification of the Mixer IC. This service manual applies to products with B2801161 (except B2801431 to B2801544) or subsequent serial number. Refer to the NX-700/700H service manual (B51-8822-00) for any information which has not been covered in this service manual.
  • Page 2 Copyright 2015 by JVC KENWOOD Corporation. All While every precaution has been taken in the preparation rights reserved. of this manual, JVC KENWOOD Corporation assumes no No part of this manual may be reproduced, translated, responsibility for errors or omissions. Neither is any liability...
  • Page 3 NX-700/700H PARTS LIST CAPACITORS 2 2 0 • Capacitor value CC45 Color* 010 = 1pF 0 = 22pF 1 = Type ... ceramic, electrolytic, etc. 4 = Voltage rating 100 = 10pF 2 = Shape ... round, square, etc. 5 = Value...
  • Page 4 NX-700/700H PARTS LIST 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 : Europe Les articles non mentionnes dans le Parts No. ne sont pas fournis.
  • Page 5 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation C115 CK73HBB1H471K CHIP C 470PF C179 CM73F2H360J CHIP C 36PF C116 CK73HBB1H471K CHIP C 470PF C179 CM73F2H390J CHIP C...
  • Page 6 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation C244 CC73HCH1H470J CHIP C 47PF C332 CK73HBB1A104K CHIP C 0.1UF C245 CK73HBB1E103K CHIP C 0.01UF C333 CK73HBB1A104K CHIP C 0.1UF...
  • Page 7 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation C441 CK73HBB1E103K CHIP C 0.01UF C516 CK73HBB1A104K CHIP C 0.1UF C442 CK73HBB1E103K CHIP C 0.01UF C517 CK73HBB1A104K CHIP C 0.1UF...
  • Page 8 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation C576 CC73HCH1H101J CHIP C 100PF C702 CK73HXR0J105K CHIP C 1.0UF C577 CC73HCH1H101J CHIP C 100PF C704 CC73HCH1H030B CHIP C 3.0PF...
  • Page 9 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation C769 CK73HBB1E103K CHIP C 0.01UF C907 CK73HBB1H102K CHIP C 1000PF C770 CK73HBB1A104K CHIP C 0.1UF C908 CC73HCH1H101J CHIP C...
  • Page 10 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation CN705 E40-6582-05 PIN ASSY D506 1SS416 DIODE D507 1SS416 DIODE CN901 E40-6560-05 FLAT CABLE CONNECTOR D508 MC2850 DIODE...
  • Page 11 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation Note1 IC501 ROM IC LK73G0AQ3R3K SMALL FIXED INDUCTOR(3.3UH) Note1 IC502 MICROPROCESSOR IC LK73G0AQ3R3K SMALL FIXED INDUCTOR(3.3UH) IC503 Note1...
  • Page 12 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation L233 L41-2285-14 SMALL FIXED INDUCTOR(220NH) Q209 2SC5383-T111 TRANSISTOR L234 L41-3385-14 SMALL FIXED INDUCTOR(330NH) Q210 NESG240034 TRANSISTOR L240 LK73G0AF10NJ...
  • Page 13 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation RK73HB1J104J CHIP R 100K J 1/16W RK73HB1J000J CHIP R J 1/16W RK73HB1J473J CHIP R J 1/16W RK73HB1J000J CHIP R...
  • Page 14 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation R145 RK73HB1J473J CHIP R J 1/16W HK R264 RK73HB1J472J CHIP R 4.7K J 1/16W R146 RK73HB1J124J CHIP R...
  • Page 15 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation R346 RK73HB1J223J CHIP R J 1/16W R512 RK73HB1J104J CHIP R 100K J 1/16W R352 RK73HB1J000J CHIP R J 1/16W...
  • Page 16 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation R586 RK73HB1J000J CHIP R J 1/16W R648 RK73HB1J682J CHIP R 6.8K J 1/16W R587 RK73HB1J102J CHIP R 1.0K...
  • Page 17 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description nation nation R713 RK73HB1J563J CHIP R J 1/16W R779 RK73HB1J474J CHIP R 470K J 1/16W R714 RK73HB1J104J CHIP R 100K J 1/16W...
  • Page 18 NX-700/700H PARTS LIST TX-RX UINT (X57-8890-XX) Desti- Ref. No. Address Parts No. Description nation R838 RK73HB1J000J CHIP R J 1/16W R841 RK73HB1J000J CHIP R J 1/16W R842 RK73FB2B102J CHIP R 1.0K J 1/8W R843 RK73HB1J471J CHIP R J 1/16W R845...
  • Page 19 NX-700/700H ADJUSTMENT Receiver Section Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel test mode PC test mode Unit Unit Parts Method Terminal equipment 1. AF level 1) Test Channel Volume Up/Down 2.83V±0.3V [Panel test mode] [Panel setting 1) CH-Sig: 1-1 Channel: 1 Ext.SP tuning knob to obtain SSG output:...
  • Page 20 NX-700/700(H) PC BOARD TX-RX UNIT (X57-8890-XX) (A/2) -14:K, -15:HK Component side view (J7C-0062-00 A/2) J701 EXT. SP Q403 R401 C480 CN705 IC102 C805 IC715 R826 D408 C820 C125 L106 C127 L401 C130 C133 C137 IC403 L402 R127 C151 L403 R123...
  • Page 21 NX-700/700(H) PC BOARD TX-RX UNIT (X57-8890-XX) (A/2) -14:K, -15:HK Component side view (J7C-0062-00 A/2) Ref. No. Address Ref. No. Address Q202 R150 Q209 Q212 C188 IC102 Q403 Q405 IC101 Q406 C182 IC103 Q411 C179 IC202 Q501 C198 IC203 Q709 R161...
  • Page 22 NX-700/700(H) PC BOARD TX-RX UNIT (X57-8890-XX) (A/2) -14:K, -15:HK Foil side view (J7C-0062-00 A/2) Ref. No. Address Ref. No. Address Ref. No. Address IC204 IC401 L116 IC402 Q101 IC404 Q102 C186 IC405 Q203 IC408 Q204 D101 IC409 Q205 D103 D109...
  • Page 23 NX-700/700(H) PC BOARD TX-RX UNIT (X57-8890-XX) (A/2) -14:K, -15:HK Foil side view (J7C-0062-00 A/2) C811 C810 R410 D406 Q401 D401 C479 Q402 C475 R409 R825 L405 C445 C801 C446 + Q404 C802 D409 D407 C468 C415 R430 C443 C804 C454...
  • Page 24 NX-700/700(H) PC BOARD TX-RX UNIT (X57-8890-XX) (B/2) -14:K, -15:HK Component side view (J7C-0062-00 B/2) Component side C905 C906 C904 Layer 1 D906 Layer 2 J7C-0062-00 B/2 C903 C915 Layer 3 C902 Layer 4 Layer 5 Ref. No. Address Layer 6...
  • Page 25 MEMO...
  • Page 26 NX-700/700H BLOCK DIAGRAM TX-RX UNIT (X57-8890-XX) (A/2) 150C 2SC5383-T111 Ripple FILTER CN401 DCin /T_R (13.6V) LM73CIMKX-0 F401 CN402 I2CCK TEMP I2CDT SENSOR ASSIST BUFF SSM6L0 DC SW Q404 2SJ347F MTM981400BF LMC7101BIM5 8V AVR VCTCXO TCXO_MOD BUFF BUFF IC403 19.2MHz Detect...
  • Page 27 NX-700/700H BLOCK DIAGRAM 150C 2SC5383-T111 2SC5383-T111 Ripple Ripple FILTER FILTER /T_R T/R SW 136 - 174MHz ASSIST BUFF SSM6L05FU-F 2SJ347F K :RA30H1317M123 LMC7101BIM5 HK:RA60H13171123 K :D104 HK:D103,D104 D101,205 PRE- L407CDB HVC131 DRIVE DRIVE FINAL SKY72310-362 LOOP E(E) BUFF BUFF FILTER...
  • Page 28 Communications Systems Business Unit No.RQ079 Printed in Japan...
  • Page 29 NX-700/700H APPENDIX (SCHEMATIC DIAGRAM X57-8890-XX) R115 R116 R120 R123 R124 R125 R127 R132 R135 R139 R142 R143 R145 R146 R922 R953 X57-8890-14 NX-700[K] 330k 330k 100k 820k 100k R953 NX-700H[K] X57-8890-15 TX-RX UNIT (X57-8890-XX) (A/2) 100k 390k 120k 390k 100k 120k 4.62V...
  • Page 30 NX-700/700(H) NX-700/700(H) PC BOARD PC BOARD TX-RX UNIT (X57-8890-XX) (A/2) -14:K, -15:HK TX-RX UNIT (X57-8890-XX) (A/2) -14:K, -15:HK Component side view (J7C-0062-00 A/2) Component side view (J7C-0062-00 A/2) J701 EXT. SP Q403 R401 C480 Ref. No. Address Ref. No. Address...
  • Page 31 NX-700/700(H) NX-700/700(H) PC BOARD PC BOARD TX-RX UNIT (X57-8890-XX) (A/2) -14:K, -15:HK TX-RX UNIT (X57-8890-XX) (A/2) -14:K, -15:HK Foil side view (J7C-0062-00 A/2) Foil side view (J7C-0062-00 A/2) Ref. No. Address Ref. No. Address Ref. No. Address IC204 IC401 C811...
  • Page 32 NX-700/700(H) PC BOARD TX-RX UNIT (X57-8890-XX) (B/2) -14:K, -15:HK Component side view (J7C-0062-00 B/2) Component side C905 C906 C904 Layer 1 D906 Layer 2 J7C-0062-00 B/2 C903 C915 Layer 3 C902 Layer 4 Layer 5 Ref. No. Address Layer 6...
  • Page 33 TX-RX UNIT (X57-8890-XX) (A/2) 150C 2SC5383-T111 2SC5383-T111 Ripple Ripple FILTER FILTER CN401 DCin /T_R (13.6V) LM73CIMKX-0 F401 CN402 I2CCK TEMP T/R SW 136 - 174MHz I2CDT SENSOR ASSIST BUFF SSM6L05FU-F DC SW Q404 2SJ347F MTM981400BF K :RA30H1317M123 LMC7101BIM5 HK:RA60H13171123 K :D104 8V AVR VCTCXO HK:D103,D104...

This manual is also suitable for:

Nx-700h