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Kenwood NX-200 K2 Service Manual

Vhf digital transceiver
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VHF DIGITAL TRANSCEIVER
NX-200
SERVICE MANUAL
REVISED
This service manual has been revised due to the modifi cation of the PC board. Refer to "Service Manual List" on page 2 for the product serial
number corresponding to each PC board (Control, TX-RX). Refer to the NX-200 service manual (B51-8810-00) for any information which has
not been covered in this NX-200 service manual.
NX-200 K2
Knob (Selector)
(K29-9408-13)
Knob (Volume)
(K29-9407-03)
Badge
(B43-1606-04)
Knob (PTT)
(K29-9405-03)
Packing (18 key)
(G53-1766-11)
Plastic cabinet assy
(18 key)
(A02-4003-23)
Does not come with antenna. Antenna is available
as an option.
General ................................................................... 2
System Set-Up ....................................................... 3
Realignment ......................................................... 3
Installation .......................................................... 6
Disassembly For Repair .................................... 7
Circuit Description .......................................... 12
Components Description ............................... 18
Parts List ............................................................. 20
Exploded View .................................................... 31
PACKING .................................................................. 32
Trouble Shooting ............................................ 33
Adjustment ........................................................ 36
This product complies with the
RoHS
Helical Antenna
(KRA-22: option)
CONTENTS
directive for the European market.
© 2009-1 PRINTED IN JA PAN
B51-8810-10 ( N ) 645
NX-200 K
Terminal Function ........................................... 58
Control Unit (X53-4260-Xx) ........................ 66
Tx-Rx Unit (X57-7360-10) ............................... 70
Interconnection Diagram ............................ 74
Schematic Diagram .......................................... 76
Block Diagram .................................................. 90
Level Diagram ................................................... 94
Knb-47L (Li-Ion Battery Pack) .......................... 95
Knb-48L (Li-Ion Battery Pack) .......................... 95
Specifications ................................. BACK COVER
Knob (Selector)
(K29-9408-13)
Knob (Volume)
(K29-9407-03)
Badge
(B43-1606-04)
Knob (PTT)
(K29-9405-03)
Packing (6 key)
(G53-1765-11)
Plastic cabinet assy
(6 key)
(A02-4002-23)
This product uses Lead Free solder.

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Summary of Contents for Kenwood NX-200 K2

  • Page 1 This service manual has been revised due to the modifi cation of the PC board. Refer to "Service Manual List" on page 2 for the product serial number corresponding to each PC board (Control, TX-RX). Refer to the NX-200 service manual (B51-8810-00) for any information which has not been covered in this NX-200 service manual. NX-200 K2 NX-200 K Helical Antenna...

  • Page 2: General

    fi rmware under the license of Digital Voice Systems, ages resulting from the use of the information contained Inc. herein. Kenwood reserves the right to make changes to any products herein at any time for improvement purposes. GENERAL...

  • Page 3: System Set-Up

    License and frequency allocated by FCC TX/RX 136~174 NX-200 K Choose the type of transceiver TX/RX 136~174 NX-200 K2 A personal computer, programming interface (KPG-36/36A), USB adapter(KCT-53U), and programming software (KPG-111D) Transceiver programming are required for programming. (The frequency, and signaling data are programmed for the transceiver.)
  • Page 4 NX-200 REALIGNMENT 5-2. Connection procedure 2. How to Enter Each Mode 1. Connect the transceiver to the computer using the inter- Mode Operation face cable and USB adapter (When the interface cable is User mode Power ON KPG-36A, the KCT-53U can be used.). Panel test mode [ ] + Power ON Note:...

  • Page 5: Clone Mode

    NX-200 REALIGNMENT 6-2. Connection procedure 7. Clone Mode Connect the transceiver to the personal computer using Programming data can be transferred from one trans- the interface cable (KPG-36/36A) and USB adapter (KCT-53U: ceiver to another by connecting them via their external uni- when the interface cable is KPG-36A, the KCT-53U can be versal connectors.

  • Page 6: Installation

    NX-200 REALIGNMENT Cloning cable If you press the [ ] key after entering the password in (E30-3325-05) this procedure, “CLONE MODE” is displayed if the en- tered password is correct. If the password is incorrect, “CLONE LOCK” is redisplayed. 4. Power ON the target transceiver. 5.

  • Page 7: Disassembly For Repair

    NX-200 INSTALLATION 3. Remove the OPTION PCB from the connector (CN710) of the Control PCB. VGS-1 OPTION PCB PCB hollow Flat spring (G02-1846-03) Convex part CN710 Cushion (G13-1974-04) 21x21x1.0mm VGS-1 VGS-1 Flat spring 4. Attach the flat spring (G02-1846-03) to the VGS-1 as shown in the fi...
  • Page 8 NX-200 DISASSEMBLY FOR REPAIR 2. Precautions for Disassembly ■ Removing the TX-RX unit from the chassis 1. Remove the cord ASSY from the connector of the TX-RX unit (CN400) q. 2. Remove the PTT FPC from the connector of the TX-RX unit (CN401) w.
  • Page 9 NX-200 DISASSEMBLY FOR REPAIR ■ Removing the lithium cell (W09-0971-05) ■ Forming the VOL/CH FPC, Cord ASSY and Uni- Insert a non-conductive screwdriver to groove of one versal connector FPC side of the socket (CN401) and pry the lithium cell up Form the VOL/CH FPC, Cord ASSY and Universal con- from the socket.
  • Page 10 Part Number Remark Sticker B42-7296-04 “NXDN” is printed. Plastic Cabinet (6-key) A02-4002-23 Badge B43-1606-04 “KENWOOD” is printed. Plastic Cabinet (18-key) A02-4003-23 Fibrous Sheet (SP) G10-1373-04 Used for fi xing the LCD ASSY on the Illumination Guide (LCD). LCD ASSY B38-0923-05...
  • Page 11 NX-200 DISASSEMBLY FOR REPAIR 4. Compatibility Information for the Control unit and TX-RX unit ■ Compatibility information There are some important notices when you replace the Control and TX-RX units. 1. Firmware “BB9E” or later fi rmware versions must be applied to that radio. 2.

  • Page 12: Circuit Description

    NX-200 CIRCUIT DESCRIPTION 1. Overview 2. Frequency Confi guration The NX-200 is a VHF portable transceiver designed to The receiver is a double-conversion superheterodyne operate in the frequency range of 136 to 174MHz. The unit using the first intermediate frequency (IF) of 58.05MHz consists of receiver, transmitter, phase-locked loop (PLL) and the second IF of 450kHz.
  • Page 13 NX-200 CIRCUIT DESCRIPTION 3-3. Audio Amplifi er Circuit 3-4. Squelch Circuit Audio processing (high-pass filter, low-pass filter, de- It amplifies the demodulated noise signal from IC108 emphasized and so on) at FM mode and decoding at NXDN after filtering through the BPF circuit. Then, the amplified mode are processed by DSP.
  • Page 14 NX-200 CIRCUIT DESCRIPTION 4-3. VOX 4-5. APC Circuit IC716 (2/2) amplifi es the audio signal captured in the mi- The APC circuit always monitors the current flowing crophone. The signal is then converted into the DC voltage, through the RF power amplifi er (Q106) and keeps a constant rectifi...
  • Page 15 NX-200 CIRCUIT DESCRIPTION 5-3. PLL IC (IC3) 5-4. Doubler (Q4) The PLL IC compares the differences in phases of the The doubler (Q4) extracts the twice harmonic component VCO oscillation frequency and the VCTCXO reference from the signal from the VCO. This twice harmonic compo- frequency, returns the difference to the VCO CV terminal nents is then fed into PLL (IC3) through band pass fi...
  • Page 16 NX-200 CIRCUIT DESCRIPTION 6-2. Memory Circuit 6-6. DSP The memory circuit consists of the ASIC (IC108) and the The DSP circuit consists of a DSP (IC102) and processes SRAM (IC103) and fl ash memory (IC101). The fl ash memory the base band signal. The DSP operates on an external clock has capacity of 32M-bit that contains the transceiver control of 18.432MHz (the same as the IC108), the I/O section op- program for the ASIC and stores the data.
  • Page 17 NX-200 CIRCUIT DESCRIPTION 8. Signaling Circuit TX-RX unit (X57) F400 RF Final AMP 8-1. Encode (QT/DQT/LTR/DTMF/2-tone/MSK) 2.5A Each signaling data signal of QT, DQT, LTR, DTMF, 2-tone IC400 /SAVE and MSK is generated by the DSP circuit, superposed on Q405 a modulation signal and output from IC108.

  • Page 18: Components Description

    NX-200 COMPONENTS DESCRIPTION Control unit (X53-4260-XX) Ref. No. Part Name Description Ref. No. Part Name Description Q103 12key backlight switch LCD contrast Q401,402 Level converter IC101 FLASH ROM Q403 Transistor SB2 switch Q404 SB2 switch control IC102 IC103 SRAM Q405 AF AMP switch IC104 2 input AND gate...
  • Page 19 NX-200 COMPONENTS DESCRIPTION TX-RX unit (X57-7360-10) Ref. No. Part Name Description Ref. No. Part Name Description Q202 Transistor IF AMP Temperature sensor Q203 Mixer AF AMP for VCO tune Q204 RF AMP PLL IC Q401 50R switch OP AMP (VCO MOD/APC) Q402 50IF switch DC AMP for TCXO MOD...

  • Page 20: Parts List

    NX-200 PARTS LIST 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.

  • Page 21: Parts List

    NX-200 PARTS LIST CONTROL UNIT (X53-4260-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C107 CK73HB1A104K CHIP C 0.10UF C452,453 CK73HB1E103K CHIP C 0.010UF C107,108 CK73HB1A104K CHIP C 0.10UF C454 CK73GB1E105K...
  • Page 22 NX-200 PARTS LIST CONTROL UNIT (X53-4260-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C765-767 CK73HB1A104K CHIP C 0.10UF L714-717 L92-0444-05 CHIP FERRITE C768 CK73HB1H102K CHIP C 1000PF L718 L92-0408-05 CHIP FERRITE...
  • Page 23 NX-200 PARTS LIST CONTROL UNIT (X53-4260-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R153,154 RK73HB1J104J CHIP R 100K 1/16W R455 RK73HB1J102J CHIP R 1.0K 1/16W R155 RK73HB1J473J CHIP R 1/16W R456...
  • Page 24 NX-200 PARTS LIST CONTROL UNIT (X53-4260-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R730 RK73HB1J471J CHIP R 1/16W R805,806 RK73HB1J473J CHIP R 1/16W R731,732 RK73HB1J105J CHIP R 1.0M 1/16W R807...
  • Page 25 NX-200 PARTS LIST CONTROL UNIT (X53-4260-XX) TX-RX UNIT (X57-7360-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation D411 1SS416 DIODE Q404 SSM3K15TE (F) D412 1SS301F DIODE Q405 SSM6N16FE-F D413 1SS388F DIODE...
  • Page 26 NX-200 PARTS LIST TX-RX UNIT (X57-7360-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation CK73HB1H471K CHIP C 470PF C133,134 CK73HB1H471K CHIP C 470PF CS77AA1VR15M CHIP TNTL 0.15UF 35WV C135 CC73GCH1H220G CHIP C...
  • Page 27 NX-200 PARTS LIST TX-RX UNIT (X57-7360-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C233 CK73HB1C103K CHIP C 0.010UF C411 CK73HB1A104K CHIP C 0.10UF C234 CK73FB1E474K CHIP C 0.47UF C414 CK73GB1C224K...
  • Page 28 NX-200 PARTS LIST TX-RX UNIT (X57-7360-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation L109,110 L34-4568-05 AIR-CORE COIL RK73HB1J474J CHIP R 470K 1/16W L111 L34-4576-05 AIR-CORE COIL RK73HB1J473J CHIP R 1/16W L112...
  • Page 29 NX-200 PARTS LIST TX-RX UNIT (X57-7360-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R152 RK73EB2E823J CHIP R 1/4W R268 RK73HB1J680J CHIP R 1/16W R153 RK73HB1J473J CHIP R 1/16W R269 RK73HB1J221J...
  • Page 30 NX-200 PARTS LIST TX-RX UNIT (X57-7360-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation HSC119 DIODE Q404 SSM5H01TU-F 1SV325F VARIABLE CAPACITANCE DIODE Q405 2SA1955A-F TRANSISTOR 1SV282-F VARIABLE CAPACITANCE DIODE Q406 UMG9N TRANSISTOR...

  • Page 31: Exploded View

    NX-200 EXPLODED VIEW Control unit (X53) Optional board unit (X57 B/2) Hx10 TX-RX unit (X57 A/2) : N08-0564-04 : N09-2426-14 : N09-2440-15 : N09-6549-04 : N09-6554-05 : N14-0844-04 H M2 x 5 : N83-2005-48 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 32: Packing

    NX-200 PACKING 60 Belt clip (B09-0712-03) (J29-0730-05) 53 Packing (Cap) (G53-1769-04) G Pan head machine screw (N30-3008-60)x2 A Dressed screw (N08-0564-04) 14 Instruction manual (B62-2014-10) Parts with the exploded numbers larger than 700 are not supplied.

  • Page 33: Trouble Shooting

    NX-200 TROUBLE SHOOTING Fault Diagnosis of the BGA (Ball Grid Array) IC ■ Overview A fl owchart for determining whether or not the transceiver can be powered on (the LCD does not function even if the power switch is turned on) due to broken BGA parts. ■...
  • Page 34 NX-200 TROUBLE SHOOTING When a normal ● Checking the output signal value is confirmed. from the ASIC When an abnormal value is confirmed. Points to be checked Normal voltage Remove R432. If the ASIC side is 0V, SBC R432 3.3V the ASIC/FLASH/SRAM may be broken.
  • Page 35 NX-200/300S2 (with DTMF Kenwood ESN keypad) Type: K The shielding plate is soldered The same number as the Kenwood on the Service Control unit ESN label is written. (X53-4260-12/X53-4260-13). NXDN ESN/ The same number as the NXDN ESN/...

  • Page 36: Adjustment

    NXDN ESN number. Product Number Lable (16 digits) • When a new printed circuit board is used, the Kenwood ESN changes, as does the Transceiver Information dis- (Not used) play of the KPG-111D, but this does not have any effect on the operation of the transceiver.

  • Page 37: Key Operation

    NX-200 ADJUSTMENT ■ Key operation • LED indicator Red LED Lights during transmission. “FNC” not appears on the sub LCD display Green LED Lights when there is carrier. Function Display • Sub LCD indicator [Selector] - “FNC” Appears at function on. Push: Test channel up Hold: Test channel up Channel No.
  • Page 38 NX-200 ADJUSTMENT • Analog mode signaling • LCD display in panel tuning mode CV voltage, AD value, etc None None Sub LCD display None 100Hz Square Wave CNTR Main LCD display LTR Data: LTR Data: AREA=0, GOTO=12 AREA=0, GOTO=12 HOME=12 HOME=12 Adjustment Adjustment value...
  • Page 39 NX-200 ADJUSTMENT ■ Adjustment item supplement Adjustment Item Description LCD contrast The contrast of LCD display can be changed. “Counterclockwise Volume” is adjusted at the minimum volume position. Counterclockwise Volume “Clockwise Volume” is adjusted at the maximum volume position. These adjustments can correct the volume variation. Both “Counterclockwise Volume”...
  • Page 40 NX-200 ADJUSTMENT ■ Adjustment item and Display Aw (Analog An (Analog Nn (NXDN Nv (NXDN Adjusutment Main LCD Very Narrow) Adjust item Wide) Narrow) Narrow) Order Sub LCD display item display Number Adjustment range 1 point ADJ Common LCD contrast CNTR Section 2 1~256...
  • Page 41 NX-200 ADJUSTMENT Aw (Analog An (Analog Nn (NXDN Nv (NXDN Adjusutment Main LCD Very Narrow) Adjust item Wide) Narrow) Narrow) Order Sub LCD display item display Number Adjustment range (RSSI measurement Receive Sensitivity 2 SENS2 value) Section 3 1~256 - *1 (RSSI measurement Receive RSSI Reference...
  • Page 42 NX-200 ADJUSTMENT [Side2] Analog MAX Deviation Analog MAX Deviation Narrow Wide ADEV ADEV ] press ] hold 5 reference level Adjustments [Side2] QT Deviation QT Deviation Narrow Wide ] press ] hold [Side2] DQT Deviation DQT Deviation Narrow Wide ] press ] hold [Side2] LTR Deviation...
  • Page 43 Li-ion High Capacity Battery: R1=Open In order to turn the volume nut and the channel selector Li-ion Normal Capacity Battery: R1=560kΩ nut, use a recommendation tool. KENWOOD part No.: W05-1123-00 Schematic diagram ■ Battery jig (W05-1370-00) –Terminal Connect the power cable properly between the battery...
  • Page 44 NX-200 ADJUSTMENT ■ Universal connector BLU (7) To transceiver PTT SW Use the interface cable (KPG-36/36A) for PC tuning or the lead wire with plug (E30-3287-28) and screw (N08-0535- BRN (10) 08) for panel tuning. Connect the plug to the universal con- nector of the transceiver and tighten the screw.
  • Page 45 NX-200 ADJUSTMENT Radio Check Section Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel test mode PC test mode Unit Terminal Unit Parts Method equipment 1. Frequency 1) CH-Sig: 1-1 1) Test Channel f. counter Panel Check an internal ±0.5ppm check PTT: ON...
  • Page 46 NX-200 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel test mode PC test mode Unit Terminal Unit Parts Method equipment 5. Sensitivity 1) CH-Sig: 1-1 1) Test Channel Check 12dB SINAD or check SSG output Channel: 1 AF VTVM Universal more...
  • Page 47 NX-200 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment 5. Receive 1) Adj item: [RAST] 1) Adj item: Panel [Panel The sub LCD display 2.5V±0.1V Assist Adjust: [✳✳✳✳] [Receive Assist] tuning...
  • Page 48 NX-200 ADJUSTMENT Transmitter Section Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment 1. High 1) Adj item: [HIPWR] 1) Adj item: [High Power Panel Panel [Panel 5.0W ±0.2W Transmit Adjust: [✳✳✳✳]...
  • Page 49 NX-200 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment Maximum 1) Adj item: [Nv NDEV] 1) Adj item: [Maximum Deviation Panel Panel [Panel 1337Hz 1311~1363Hz Deviation Adjust: [✳✳✳✳] Deviation (NXDN meter...
  • Page 50 NX-200 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment 1) Adj item: [Aw QT] 1) Adj item: [QT Devia- Deviation Panel Panel [Panel Write the value as 0.75kHz±0.05kHz Deviation Adjust: [✳✳✳✳]...
  • Page 51 NX-200 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment 10. Single 1) Adj item: [An TONE] 1) Adj item: [Single Deviation Panel Panel [Panel Write the value as 1.50kHz±0.05kHz Tone Adjust: [✳✳✳✳]...
  • Page 52 NX-200 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment 15. BATT 1) Adj item: [BATT] 1) Adj item:[Battery Power Panel Press the PTT detection Adjust: [✳✳✳] Warning Level] meter BATT...
  • Page 53 NX-200 ADJUSTMENT Necessary adjustment and order Mode Signaling Wide Narrow Very Narrow Step1. Balance adjust Step1. Balance adjust Audio Step2. Maximum Deviation (NXDN Narrow) Step2. Maximum Deviation (NXDN Very Narrow) NXDN Step1. Balance adjust CWID Step2. Maximum Deviation (Analog Narrow) Step3.
  • Page 54 NX-200 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment 3. Sensitivity 2 1) Adj item: [SENS2] 1) Adj item: Panel Panel [Panel Write the value as adjust Adjust: [✳✳✳] [Sensitivity 2]...
  • Page 55 NX-200 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment 5. Open 1) Adj item: [An SQL] 1) Adj item: Panel [Panel tuning mode] “Open Squelch” Squelch Adjust: [✳✳✳] [Open Squelch Distortion...
  • Page 56 NX-200 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment Low RSSI 1) Adj item: [Aw LRSSI] 1) Adj item: [Low RSSI Panel [Panel tuning mode] at 118dBm Adjust: [✳✳✳] (Analog Wide)] Universal...
  • Page 57 NX-200 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment High RSSI 1) Adj item: [Nv HRSSI] 1) Adj item: [High Panel [Panel tuning mode] Adjust with the ana- at –80dBm Adjust: [✳✳✳] RSSI (NXDN Very...

  • Page 58: Terminal Function

    NX-200 TERMINAL FUNCTION Control unit (X53-4260-XX) Pin No. Name Function Pin No. Name Function Power output after passing through the fuse Chip select output Power input after power switch /RES LCD reset output CN404 Address bus 0 output LED_G Green LED control output WR bus output /EMG Emergency (Orange) key input...
  • Page 59 NX-200 TERMINAL FUNCTION Pin No. Name Function Pin No. Name Function Thermistor voltage input OPT2 PLL lock detect input 38M output RXEO Refer to “CN710 26-pin connector SCK1 PLL clock output RXEI specifi cation” described on pages 62 to 64. S_DET Battery select input OPT6...
  • Page 60 NX-200 TERMINAL FUNCTION Option board unit (X57-7360-10 B/2) Pin No. Name Function Side_G Key matrix input (SIDE1,2 key) Pin No. Name Function CN736 Side_1 Key matrix output (SIDE1 key) OPT1 W_/N No connection SDO1 PLL serial data input OPT3 26P_RD Side_2 Key matrix output (SIDE2 key) /PCS_RF...
  • Page 61 NX-200 TERMINAL FUNCTION Universal connector Rating and Condition Signal Pin No. Name I/O Function Type Parameter Unit EXT/INT speaker switch input Digital L: External speaker ON H: Internal speaker ON [8Ω load] Max output power (1kHz, Batt=7.5V) Analog BTL output + for external speaker [8Ω...
  • Page 62 NX-200 TERMINAL FUNCTION CN710 26-pin connector specifi cation Rating and Condition Pin No. Name Signal Type Parameter Unit OPT1 [Input] VIH OPT4 [Input] VIL OPT5 Digital [Output] VOH OPT8 [Output] VOL OPT11 OPT3 [Input] VIH OPT7 [Input] VIL Digital OPT2 [Output] VOH OPT6 [Output] VOL...
  • Page 63 NX-200 TERMINAL FUNCTION Rating and Condition Pin No. Name Signal Type Parameter Unit Output Amplitude (1kHz, 60% deviation) mVp-p Coupling Capacitor µF RXEO Analog Output Impedance 2.2k Ω Allowable Frequency 3000 Input Amplitude (1kHz, 60% deviation) mVp-p Coupling Capacitor µF RXEI Analog Input Impedance...
  • Page 64 NX-200 TERMINAL FUNCTION Pin No. Name Device Connection Function ANI board 26P_TD VGS-1 Serial data output ANI board PTT signal output OPT4 VGS-1 Enable ANI board OPT10 VGS-1 USEL UART speed select output ANI board Emergency Emergency signal output OPT5 VGS-1 Reset output ANI board...
  • Page 65 NX-200 TERMINAL FUNCTION CN736 Option board connector specifi cation Pin No. Name Device Connection Function [COR] Conv/LTR L: Activity receiving H: Not activity receiving [TOR] Conv/LTR L: Activity receiving (Sub Tone or LTR ID is OK) OPT1 ANI board Aux Output H: Not activity receiving [LOK] Conv...
  • Page 66 NX-200 PC BOARD CONTROL UNIT (X53-4260-XX) -10: K -11: K2 Component side view (J79-0131-29) J79-0131-29 Ref. No. Address Ref. No. Address Ref. No. Address IC415...
  • Page 67 NX-200 PC BOARD CONTROL UNIT (X53-4260-XX) -10: K -11: K2 Component side view (J79-0131-29) CN22 CN23 /RES R406 C452 R500 CN24 Component side Layer 1 Layer 2 Layer 3 Layer 4 Layer 5 Layer 6 Foil side...
  • Page 68 NX-200 PC BOARD CONTROL UNIT (X53-4260-XX) -10: K -11: K2 Foil side view (J79-0131-29) R402 D409 L719 R472 R496 R442 C429 Q405 L410 R474 C440 IC413 C415 + R462 L401 R133 R489 C437 C416 R132 R471 C438 R490 R495 C806 C424 R140 R484...

  • Page 69: Pc Board Control Unit (X53-4260-Xx)

    NX-200 PC BOARD CONTROL UNIT (X53-4260-XX) -10: K -11: K2 Foil side view (J79-0131-29) R735 Q102 Q101 C712 R750 R112 R117 R114 R745 IC707 C115 R106 R793 C717 C722 R829 C767 R758 R755 R108 R753 C745 L710 C108 C118 D101 R847 R414 C731...

  • Page 70: Tx-Rx Unit (X57-7360-10)

    NX-200 PC BOARD TX-RX UNIT (X57-7360-10) (A/2) Component side view (J79-0127-39 A/2) C131 C152 C127 R165 C141 R149 R150 R164 Q105 R155 R157 R319 Q104 C128 R131 R170 D106 C123 D103 R134 C129 R126 C120 R166 C168 R321 R254 R253 C262 R251 R221...
  • Page 71 NX-200 PC BOARD TX-RX UNIT (X57-7360-10) (A/2) Component side view (J79-0127-39 A/2) C141 R144 R147 C143 C458 Side_G Side_1 C457 R148 C468 Side_2 C133 R151 TX-RX UNIT C499 (X57-7360-10) (B/2) R420 Q107 Q405 R155 R421 R157 C410 D400 RXEO OPT9 R407 D401 F400...
  • Page 72 NX-200 PC BOARD TX-RX UNIT (X57-7360-10) (A/2) Foil side view (J79-0127-39 A/2) R162 R163 L118 C154 L115 C166 TX-RX UNIT (X57-7360-10) (B/2) CN102 C149 J79-0127-39 B/2 L110 C146 C135 L117 C414 26 POW OPT6 C299 RXEI D209 R422 C466 RXEO D211 R438 OPT2...
  • Page 73 NX-200 PC BOARD TX-RX UNIT (X57-7360-10) (A/2) Foil side view (J79-0127-39 A/2) L112 C173 C134 L106 R142 R137 R133 C130 L108 R171 C124 Q106 Q103 R124 C178 L103 C114 R123 R103 L104 C102 C115 C116 C111 L100 R102 C160 R119 C101 C106 R120...

  • Page 74: Interconnection Diagram

    NX-200 INTERCONNECTION DIAGRAM POWER SW/ CHANNEL SWITCH UNIT AF VOL SELECTOR X41-372 6KEY/SP/MIC CN403 CN23 /RES CONTROL PCB X53-426 CN701 CN710 CN405 CN736 UNIVERSAL CONNECTOR OPTION PCB X57-736 B/2...

  • Page 75: Interconnection Diagram

    NX-200 INTERCONNECTION DIAGRAM CORD ASSY CN404 CN400 X42-334 LED_G LED_G /EMG /EMG LED_R LED_R /SAVE /SAVE I2CCK I2CCK /5TC /5TC I2CSDA I2CSDA /T_R /T_R ASSIST ASSIST SWITCH UNIT VAGC VAGC X41-371 TCXO_MOD TCXO_MOD PGND CN401 RSSI RSSI PGND AGND Side_G Side_1 Side_1 Side_2...

  • Page 76: Schematic Diagram

    NX-200 SCHEMATIC DIAGRAM CONTROL UNIT (X53-4260-XX) R406 /LCDRST IC402 R407 TC7WZ245FK-F LCD CONTRAST NJM2130F3-ZB R408 IC401 TC74LCX245FK -7.13V 3.28V 100p C402 0.1u /CS4 C405 2.2u16 IC401,402 BUS SW IC403 -9.74V LM2682MMX C403 4.92V 2.2u16 C401 R409 0.1u L707 VoUT VOLTAGE DOUBLING INVERTER D101,Q101-103...

  • Page 77: Schematic Diagram

    NX-200 SCHEMATIC DIAGRAM CONTROL UNIT (X53-4260-XX) X2_CLKIN L712 R126 100 MCDIAF R127 0 DVSS7 R128 0 BCLKX1 MCSCKAF R135 100k CVSS8 FSDET CVDD5 C119 1u R141 100k INT3 INT3 CVSS9 INT2 DVDD5 C101 INT1 /DINT R150 1k 0.1u INT0 /SYMTIM R142 100k 33MDSP /DWUP...
  • Page 78 NX-200 SCHEMATIC DIAGRAM CONTROL UNIT (X53-4260-XX) GPIo7 ASQDET AUD_IREFC X2_CLKIN AD12_IREFF R158 XTALI XTALo CN104 DSPCK /RINT USRCKI ADD0 ADD1 ADD2 ADD3 ADD4 ADD5 L713 ADD6 ADD7 IC107 BUFFER ADD8 SM5023CNDH-G X102 ADD9 18.432MHz ADD10 C130 ADD11 oUTPUT 0.01u ADD12 R165 INHN ADD13...
  • Page 79 NX-200 SCHEMATIC DIAGRAM CONTROL UNIT (X53-4260-XX) GPIo7 GPIo7 33A-1 IC108 ASIC R470 IFADCN 33MAS 33MAS 33A-1 33A-1 SPCS10 SPCS10 RESET X53-426 4/10...
  • Page 80 NX-200 SCHEMATIC DIAGRAM CONTROL UNIT (X53-4260-XX) C459 GPIo7 L101 470p 33A-1 C460 L102 VOL SW/ENC 6800p C461 POWER SW/AF VOL 470p DGND3 CN403 R501 DGND2 DGND1 2.2k L714 R506 VOL_GND DVDIo7 L403 2.2k L716 DVDIo6 DVDIo5 R510 CHANNEL SELECTOR ENC3 DVDIo4 R509 AGND...
  • Page 81 NX-200 SCHEMATIC DIAGRAM CONTROL UNIT (X53-4260-XX) D702 R819 MA2S111-F R790 CONTROL ASQDET Q701 R798 100k 2SA1832(GR)F C719 OPT10 C755 47p 0.1u R803 OPT SW R747 ASQ DET NOISE ASQAPC IC711 DETECTOR TC75W51FK(F) D705 R824 SQL BPF/ RB706F-40 R739 C716 SQL DC AMP R809 C771 680p...
  • Page 82 NX-200 SCHEMATIC DIAGRAM CONTROL UNIT (X53-4260-XX) R : 5.14V Q406 Q406,407 2SB1132(Q,R) R471 VOLTAGE REGULATOR (AF AMP) R496 100k Q407 UMG3N Q405 IC413 AUDIO AF AMP SW TPA6201A1DRBR R459 SHUTDoWN Q405 C440 0.1u SSM6N16FE-F BYPASS C437 R489 D409 0.056u MA2S111-F SP CONTROL C438 R490...
  • Page 83 NX-200 SCHEMATIC DIAGRAM CONTROL UNIT (X53-4260-XX) SWITCH UNIT (X41-3720-10) CN23 AGND R20 1k 6_/KEYI0 6_/KEYI0 R21 1.2k BL_SB BL_SB R22 1k 6_KEYO1 6_KEYO1 6KEY R23 1k 6_KEYO0 6_KEYO0 R25 1.2k BL_SB R24 1k 6_KEYO2 6_KEYO2 R26 1k 6_/KEYI1 6_/KEYI1 D18,19 SURGE ABSORPTION R846...
  • Page 84 NX-200 SCHEMATIC DIAGRAM CONTROL UNIT (X53-4260-XX) D405,406,IC407 VOLTAGE REGULATOR (33M) DC/DC CONVERTER L402 L401 IC404 XC6204B332D 3.284V VOUT R438 3.82V 100k L702 IC407 R456 LT1616ES6-PBF 470k R439 D416 100k Q402 R548 47K SSM6N16FE-F D416 LEVEL CONVERTER 33A CONTROL R435 100k DC/DC CONVERTER (15M) R454 IC717...
  • Page 85 NX-200 SCHEMATIC DIAGRAM CONTROL UNIT (X53-4260-XX) DC SW DC SW POWER SUPPLY CN402 7.49V Q414 Q415 EMD12 EMD12 BATT INT 7.49V 6.05V DC SW IC414 CN404 XC61CC5602NR D408 Q408 R511 1k LED_G DC/DC EMD12 LED_G RESET CONVERTER R512 100 /EMG CONTROL /EMG R513 1k...
  • Page 86 NX-200 SCHEMATIC DIAGRAM TX-RX UNIT : (X57-7360-10) (A/2) R501 CN400 SWITCH UNIT LED_G LED_G (X41-3710-10) C441 47p CN401 R490 /EMG /PTT C442 47p LED_R Side_G LED_R Side_G C443 47p R500 SIDE 1 SIde_1 SIde_1 Side_2 Side_2 TX/RX LED C444 47p TX/RX LED SIDE 2 /SAVE...
  • Page 87 NX-200 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7360-10) (A/2) /T_R Q1,2,13 R : 4.967V R : 4.66V BUFFER T : 0.37V T : 4.78V HVC131 HVC131 R : 3.265V SWITCH T : 95mV R : 2.225V 470p 470p 1000p D5,6 T : 2.4V D2,3 R : 160mV R : 1.88V...
  • Page 88 NX-200 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7360-10) (A/2) CN102 TH100 100k -t ° PRE-FINAL AMP Q103 RD01MUS1-T113 R : 0V DRIVE AMP T : 2.11V Q102 BUFFER AMP L105 2SK3077F C178 R124 C117 R : 4.769V R : 17.5mV T : 4.789V LOCAL SWITCH T : 1.596V R : 1.53V...
  • Page 89 NX-200 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7360-10) (A/2) D105 R : 0.5mV ANTENNA T : 1.615V RF FINAL AMP SWITCH HVC131 L109 L110 L113 H : 2.44V L119 L118 L114 D104 Q106 C166 C136 L : 1.92V RD07MVS1BT122 1000p HVC131 C142 C146 C180 L108...

  • Page 90: Block Diagram

    NX-200 BLOCK DIAGRAM Control unit (X53-4260-XX) X102 18.432MHz SM5023CNDH-G IC107 TCXO IC101 IC103 Flash SRAM IC102 /DRST,DCLK,/SYMTIM,/RSSITIM, /DINT,/SWUP,FSDET,/HINT IC401 TC74LCX245FK MCD1AF,/MCSCKAF,/MCCSAF,MCD0AF,MCD1CN, BUS SW IC402 TC7WZ245FK-F /MCCXCN,/MCD0CN,/MCCSRCN,MCSCKCN D0~15,A0~20,/RD,/WR,/CS0,/CS2,/CS3,/CS4/HDS2,/HRDY /LCDRST TXD0 RXD0 IC703 RTS0 M62364FP-F(7/8) CTS0 LCDCNT /PTT IC105 /UDET XC6109C29ANN NJM2130F3-ZB RXD3 ENC1 RESET...
  • Page 91 NX-200 BLOCK DIAGRAM L401 , D406 , D405 IC404 XC6204B332D IC407 LT1616ES6-PBF DCDC Converter IC717 D408 Q402 SSM6N16FE-F XC9235A15CM1 1SS301F DCDC DCSW /PSW Q408 IC414 Q401 SSM6N16FE-F EMD12 XC61CC5602NR IC406 RESET /BINT XC6204B332M IC416 S-812C31BPI-G DCSW SCTAM1 Q413 2SA1955A-F Q412 SSM3K15TE(F) DCSW 31BU D412...
  • Page 92 NX-200 BLOCK DIAGRAM TX-RX unit (X57-7360-10) CN400 I2CCK 2SC5383-T111 I2CSDA Ripple Filter Q7 SSM6L05FU-F /T_R LM73CIMKX-0 Q9 2SJ347F Temp. Q100 Sensor SKY72300-362 2SC5636 TCXO_MOD Loop BUFF BUFF TCXO Filter X1 19.2MHz TLV2381IDBV 2SK879-F(Y) 2SC5636 Q8,10 2SK508NV(K52) D8 1SV325F BUFF D13 HVC376B TC75W51FUF(1/2) D18 1SV278-F D9,12,14,15,16,17...
  • Page 93 NX-200 BLOCK DIAGRAM TX/RX: 136~174MHz D104,105 D100,201 Q102 Q103 Q106 D209,211 HSC277*2 2SK3077 RD01MUS1-T113 RD07MVS1BT122 HVC131*4 Pre- Drive Final Final Q110 EMD5 Q104 DC SW DC SW /APCSW 2SC5383-T111 IC100 /DSW TA75W51FU Q105 Q107 DTC144EE 2SK1824-A DC SW Protect Q109 SSM3K15TE TC75W51FUF(2/2) /APCSW...

  • Page 94: Level Diagram

    NX-200 LEVEL DIAGRAM...

  • Page 95: Knb-48L (Li-Ion Battery Pack)

    NX-200 OPTIONAL ACCESSORIES KNB-47L (Li-ion Battery Pack) KNB-48L (Li-ion Battery Pack) ■ External View ■ External View ■ Specifi cations ■ Specifi cations Voltage ................7.4V Voltage ................7.4V Battery capacity ............1950mAh Battery capacity ............2550mAh ■ Schematic Diagram ■ Schematic Diagram DISCHARGING TERMINALS DISCHARGING TERMINALS 560kΩ...

  • Page 96: Specifications

    4K00F7W, 4K00F2D Analog measurements made per TIA/EIA 603 and specifi cations shown are typical. KENWOOD reserves the right to change specifi cations without prior notice or obligation. 2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan P.O. BOX 22745, 2201 East Dominguez Street, Long Beach, Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands CA 90801-5745, U.S.A.
  • Page 97 NX-200 NX-200 PC BOARD PC BOARD CONTROL UNIT (X53-4260-XX) -10: K -11: K2 CONTROL UNIT (X53-4260-XX) -10: K -11: K2 Component side view (J79-0131-29) Component side view (J79-0131-29) CN22 CN23 /RES R406 C452 R500 CN24 J79-0131-29 Component side Ref. No. Address Ref.
  • Page 98 NX-200 NX-200 PC BOARD PC BOARD CONTROL UNIT (X53-4260-XX) -10: K -11: K2 CONTROL UNIT (X53-4260-XX) -10: K -11: K2 Foil side view (J79-0131-29) Foil side view (J79-0131-29) R402 R735 D409 L719 R472 Q102 Q101 C712 R496 R112 R750 R117 R114 R745 R442...
  • Page 99 NX-200 NX-200 PC BOARD PC BOARD TX-RX UNIT (X57-7360-10) (A/2) TX-RX UNIT (X57-7360-10) (A/2) Component side view (J79-0127-39 A/2) Component side view (J79-0127-39 A/2) C131 C152 C127 R165 C141 R144 R149 R147 R150 C143 C458 R164 Side_G Side_1 C457 R148 C468 C133 Side_2...
  • Page 100 NX-200 NX-200 PC BOARD PC BOARD TX-RX UNIT (X57-7360-10) (A/2) TX-RX UNIT (X57-7360-10) (A/2) Foil side view (J79-0127-39 A/2) Foil side view (J79-0127-39 A/2) L112 C173 R162 C134 R163 L106 L118 R142 R137 R133 C154 L115 C130 C166 L108 TX-RX UNIT R171 (X57-7360-10) (B/2) C124...
  • Page 101 TX-RX UNIT : (X57-7360-10) (A/2) GPIo7 GPIo7 GPIo7 GPIo7 C459 SWITCH UNIT (X41-3720-10) DC SW DC SW TH100 CN102 R : 0.5mV D105 ANTENNA L101 470p CN23 VOLTAGE REGULATOR (33M) D405,406,IC407 POWER SUPPLY CN402 7.49V CN400 R501 100k -t ° RF FINAL AMP T : 1.615V HVC131...
  • Page 102 Control unit (X53-4260-XX) IC404 L401 , D406 , D405 XC6204B332D IC407 LT1616ES6-PBF X102 DCDC 18.432MHz Converter SM5023CNDH-G IC107 TCXO IC717 D408 Q402 SSM6N16FE-F XC9235A15CM1 1SS301F IC101 IC103 DCDC DCSW /PSW Flash Q408 IC414 SRAM Q401 SSM6N16FE-F IC102 EMD12 XC61CC5602NR IC406 /BINT RESET XC6204B332M...
  • Page 103 TX-RX unit (X57-7360-10) CN400 I2CCK 2SC5383-T111 I2CSDA Ripple TX/RX: 136~174MHz Filter Q7 SSM6L05FU-F /T_R LM73CIMKX-0 Q9 2SJ347F D104,105 Temp. Q100 D100,201 Q102 Q103 Q106 D209,211 Sensor SKY72300-362 2SC5636 HSC277*2 2SK3077 RD01MUS1-T113 RD07MVS1BT122 HVC131*4 Pre- TCXO_MOD Loop BUFF BUFF Drive Final Final TCXO Filter...
  • Page 104 POWER SW/ CHANNEL SWITCH UNIT AF VOL SELECTOR X41-372 6KEY/SP/MIC CORD ASSY CN403 CN23 CN404 CN400 X42-334 LED_G LED_G /EMG /EMG LED_R LED_R /SAVE /SAVE I2CCK I2CCK /5TC /5TC I2CSDA I2CSDA /T_R /T_R ASSIST ASSIST SWITCH UNIT VAGC VAGC X41-371 /RES TCXO_MOD TCXO_MOD...

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