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Kenwood NX-5300 F2 Service Manual

Uhf digital transceiver.
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SERVICE MANUAL
B5B-7154-00
10
2014
RA015<Rev.001>
COPYRIGHT © 2014 JVC KENWOOD Corporation
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64
This product complies with the RoHS directive for the European market.
B5B-7154-00
SERVICE MANUAL
UHF DIGITAL TRANSCEIVER
NX-5300 F2,F5,K2,K5
Note :
Lead free solder used in the board (material : Sn, Ag, In, Bi, melting point : 227 Centigrade)
COPYRIGHT © 2014 JVC KENWOOD Corporation
NX-5300
NX-5300 F3,F6,K3,K6

TABLE OF CONTENTS

This product uses Lead Free solder.
No.RA015<Rev.001>
2014/10

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Summary of Contents for Kenwood NX-5300 F2

  • Page 1: Table Of Contents

    B5B-7154-00 NX-5300 NX-5300 F2,F5,K2,K5 NX-5300 F3,F6,K3,K6 COPYRIGHT © 2014 JVC KENWOOD Corporation Note : Lead free solder used in the board (material : Sn, Ag, In, Bi, melting point : 227 Centigrade) TABLE OF CONTENTS PRECAUTION............... . . 1-4 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 Neither is any liability assumed for damages resulting from the use of the information contained herein. JVC KENWOOD Corporation reserves the right to make changes to any products herein at any time for improvement purposes. Firmware Copyrights The title to and ownership of copyrights for firmware embedded in KENWOOD product memories are reserved for JVC KENWOOD Corporation.
  • Page 3 Audio Distortion Less than 2% Modulation 16K0F3E, 11K0F3E, 8K10F1E, 8K10F1D, 8K10F1W, 8K30F1E, 8K30F1D, 8K30F7W, 4K00F1E,4K00F1D, 4K00F7W, 4K00F2D Measurements made per TIA/EIA-603 and specifications shown are typical. JVC KENWOOD Corporation reserves the right to change specifications without prior notice or obligation. (No.RA015<Rev.001>)1-3...

  • Page 4: Precaution

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS SYSTEM SET-UP Frequency range (MHz) RF power Type DTMF keypad Merchandise received TX/RX 450~520 NX-5300 F2 NX-5300 F3 NX-5300 K2 Choose the type of transceiver NX-5300 K3 TX/RX 380~470 NX-5300 F5 NX-5300 F6 NX-5300 K5...
  • Page 5 REALIGNMENT Mode Operation 2.2.1 Modes Firmware programming • [AUX (Orange)] + Power ON mode*2 • [ ] + Power ON User mode Select the “Firmware Prog” using the [ ] / [ ] key. Panel tuning mode Panel test mode Press the [ ] key.
  • Page 6 2.2.6.3 Programming correct. If password is incorrect, “Input Password” is re- (1) Start up the firmware programming software (KENWOOD displayed. Firmware Loader). The KFL.exe exists in the KPG-D1/D1N - How to enter password using the [ ] and [ ] keys;...
  • Page 7 (6) Press [ ] key on the source while the source displays 2.2.8.2 Data Writing “CLONE MODE”. The data of the source is sent to the tar- Before moving to next Zone/Channel, “Keep This Change?” ap- get. While the target is receiving the data, “PROGRAM” is pears on the LCD, if you select “OK”, the new data is written to displayed.
  • Page 8 • Key operation Key\Item Zone Select Channel RX Frequency TX Frequency Channel Channel RX Signaling TX Signaling Select Type Spacing Decision Decision Decision Decision Decision Decision Decision Decision Unused Back to the Back to the pre- Back Back to the Back to the Back to the Back to the...
  • Page 9 • Direct enter mode Key\Item Channel Frequency Frequency Signaling Signaling Name Decision Character/Channel name decision Delete Unused Exit panel program mode Unused Character selection (upper case char- acter → lower-case character → digit → upper case character...) Character selection (upper case char- acter →...
  • Page 10 • Front panel programming mode flow chart Input Password Enter the Front panel programming mode Clone/Front Panel Password by using section "2.2.2 How to Enter Each Mode". Front panel Programming mode ] or [ Keep This Change? Zone Select Channel Name Channel Select ] or [ ] or [...
  • Page 11 Cushion D Shielding case CAUTION: Regarding VOID, confirm the service policy of the NX- 5300 to KENWOOD (or authorized distributor). In addi- tion, when installing the module, remove VOID sheet af- Attach the cushion ter understanding the service policy. correctly to the position of (2) Remove the 4 screws from the cover.
  • Page 12 (6) Attach two spacers to the back side of the orange rubber Note: seal as indicated below. • When the KWD-AE30/ KWD-AE31 is installed, select the "Secure Cryptographic Module" checkbox in the Product In- formation of the KPG-D1/KPG-D1N (programming soft- ware), and then set each parameter.
  • Page 13 2.4.3.3 Audio Amplifier Circuit Audio processing (high-pass filter, low-pass filter, de-emphasized and so on) at Analog FM mode and decoding at Digital mode are processed by DSP. SSI signal from DSP is converted to audio signal at IC902. The signal goes to amplifier (IC904 or IC905). While INTAMT is High, IC904 is activated and audio is heard from internal speaker.
  • Page 14 2.4.5 PLL Frequency Synthesizer 2.4.5.1 TCXO (X700) TCXO (X700) generates a reference frequency of 19.2MHz for the PLL frequency synthesizer. This reference signal is buffered by Q700 and IC700. And it is distributed to TX PLL (IC100), RX PLL (IC200), IF IC (IC600), GPS/Bluetooth (IC850), and IC702. The frequency adjustment is achieved by adjusting a D/A converter (IC901) output in the voltage of the control terminal of TCXO.
  • Page 15 Mobile DDR (static memory) Note: Mobile DDR is used as a work area of the MPU. 2.4.6.3 The LCD is controlled using parallel interface from the MPU (IC702). 2.4.6.4 Key Detection Circuit Keys are detected using I/O Expander IC (IC708). If pressed key is detected by IC708, it is informed to the MPU (IC702) through serial line.
  • Page 16 (3.15A) Battery Final Amp, APC, Drive Amp IC31 IC32 MPU/DSP RTC 31BU 12BU BackUp Battery SCM Board IC33 MPU/DSP Core, MPU/DSP PLL IC34 MPU/DSP 1.8V I/O, mDDR2, LCD Module I/O IC701 Flash ROM I/O, 18M_3 AudioCodec DVDD IC37 BT & GPS I/O 18BT IC38 BT &...
  • Page 17 KEY Back Light, 3Color LED, IC82 8bit/16ch ADC, Universal I/F IC801 Universal Option IC36 PLL, IF, VCO IC60 ASSIST 200C IC360 ANTSW ANTSW IC63 50VCO Q110 TX VCO Q210 RX VCO IC65 TX circuit IC64 RX circuit 8bit ADC (1A) Int AF Amp 53AF Ext AF Amp...
  • Page 18 2.4.9 Bluetooth/GPS Circuit The main component of the BT/GPS circuit is BT/GPS IC (IC850). The clocks of BT/GPS IC require 19.2MHz for core and 32.768kHz slow clock (X850) for UART. 19.2MHz clock (X700) is shared with MPU/DSP (IC702), and is supplied through the clock buffer IC (IC700). The BT/GPS IC communicates to the MPU/DSP (IC702) on the HCI UART.
  • Page 19 2.4.9.2 GPS Circuit The RF signal is received by the antenna matched by the matching circuit. The matching circuit consists of L905, C948 and C883. And this signal applied to a high-pass filter. The filter consists of C882, C881, C880, L859 and L858. The filtered RF signal is then applied to a SAW filter (L857).
  • Page 20 Ref. No. Part Name Description Ref. No. Part Name Description IC901 D/A converter Q703 DC SW IC902 Codec Q800 DC SW IC903 D/A converter Q801 Transistor DC SW IC904,905 IC Audio AMP Diode IC906 Logic control Diode Overvoltage protection IC907 Clock buffer Diode DC SW...
  • Page 21 TERMINAL FUNCTION Pin No. Name Function 2.6.1 TX-RX unit (XC1-0341-8X) BD14 I/O LCD Data Bus 14 Pin No. Name Function BD13 I/O LCD Data Bus 13 BD12 I/O LCD Data Bus 12 O Power output after passing through the BD11 I/O LCD Data Bus 11 fuse BD10...
  • Page 22 Pin No. Name Function Pin No. Name Function I/O Serial data output/USB DP O 5V power supply output DAT2 I/O Data 2 - GND CD/DAT3 I/O Data 3 I MIC identification I/O Command input/output I Programmable function key input O 3.3V output /PTT I PTT input O Clock output...
  • Page 23 Rating and Condition Pin No. Name I/O Signal Type Function Parameter Min Typ Unit - Power 5V power supply output Output Voltage(Iout = 100mA) 4.9 5.0 Maximum Current O Digital Serial data output VOH(Io=-5mA) VOL(Io=5mA) Baud Rate 1.1875 Mbps USB_DP IO Analog USB DP Baud Rate (Full-Speed)

  • Page 24: Disassembly

    SECTION 3 DISASSEMBLY Precautions for Waterproof (2) Remove the selector knob spring <2>. • Do not remove the black sheet from the reverse side of the Note: transceiver (refer to the illustration below). Removal of this Use minimal contact with your fingers on the knob sheet decreases the waterproof efficiency of the transceiver spring.
  • Page 25 <3> <3> • Regarding VOID, confirm the service policy of the NX- (4) Remove the LCD shielding case from the Main unit. <4> 5300 to KENWOOD (or authorized distributor). <1> <1> VOID seal 3.2.5 Remove the holder ASSY from the chassis (1) Remove the two hooks on the holder ASSY from the chas- sis.
  • Page 26 (4) Remove the six screws <6>. 3.2.9 Removing the stopper of the selector circle nut and volume circle nut Note: (1) Remove the stopper <1> using a pair of tweezers. When you remove two screws (black), the battery termi- nal block is removed. <1>...
  • Page 27 (4) Move the selector and volume switches and then remove Note: them both from the holes in the chassis. Push evenly on the top cover and be careful that you do not bend it as you install it on the shield cover. 3.2.11 Remove the top cover from the shield cover (1) There are four shield covers (GPS, IF, VCO RX, and VCO Precautions for Reassembly...
  • Page 28 (6) Press the packing evenly to the base of the chassis. (3) Insert the universal connector FPC into the connector (CN12). <3> Note: (4) Insert the PTT FPC into the connector (CN8). <4> To prevent doing any damage, do not press forcefully on (5) Insert the VOL/SEL/MIC FPC into the connector (CN4).
  • Page 29 3.3.3 Mounting the chassis onto the case (1) Place the key top on the chassis. Then, fit the chassis tight- ly into the groove of the key top. <1> Note: Confirm that the entire groove of the key top fits to the chassis tightly.
  • Page 30 Main Parts Assembled Sheet/ Cushion Part Name Part Number Part Name Part Number Remark Plastic Cabinet (F3,F6,K3,K6) A0C-0001-00 Badge B4D-0002-00 “KENWOOD” is printed. Plastic Cabinet (F2,F5,K2,K5) A0C-0002-00 Fibrous Sheet (SP) G1A-0001-00 Sheet (LCD) G1B-0074-00 Spacer (2CH) J3K-0003-00 Knob (2CH) K2K-0013-00...

  • Page 31: Adjustment

    SECTION 4 ADJUSTMENT Controls Power switch/Volume control Selector knob Auxiliary (orange) key Transmit/ Receive/ Battery low indicator Lever switch Side 1 key PTT (Push To Talk) switch Universal connector Side 2 key Side 3 key 4.1.1 Preparations for checking/tuning the transceiver "FNC"...
  • Page 32 "FNC" appears on the sub LCD display "FNC" appears on the sub LCD display Function Display Function Display Function off [Selector] Compander on/off icon appears Talk Around on/off icon appears Function off Analog/Phase1/Phase2/ Analog: "A" NXDN P25 phase1: "P1" [AUX For production P25 phase2: "P2"...
  • Page 33 (2) Test signaling Analog mode signaling STTP-OB-1031-1 0 Burst Pattern STTP-OB-1031 Symmetrical STTP-IB1031-1 None None Tone Pattern (Half rate) STTP-IB1031-1 None Square Wave Silence Pattern STP-IB-1 + LTR Data LTR Data (Half Rate) Silence Pattern (Half Rate) QT:67.0Hz QT:67.0Hz Audio Test Pattern STTP-IB1031-1 + Audio QT:151.4Hz QT:151.4Hz...
  • Page 34 4.3.2 Key operation Function Function Push Hold (1 second) Push Hold (1 second) Writes the adjustment value [Selector] - Go to next adjustment Back to last adjustment Adjustment value up Continuation up item item (At the time of 5, 9 or Adjustment value down Continuation down 17 point adjustment: Ad-...
  • Page 35 Receive Assist, Transmit Assist Tuning point Display F2,F3,K2,K3 F5,F6,K5,K6 RX (MHz) TX (MHz) RX (MHz) TX (MHz) Low 1 450.050000 450.100000 380.050000 380.100000 Low 2 454.450000 454.500000 385.550000 385.600000 Low 3 458.850000 458.900000 391.050000 391.100000 Low 4 463.250000 463.300000 396.550000 396.600000 Low 5 467.550000...
  • Page 36 Adjustment Item Description Adjustment Item Description Sensitivity 2 The gain of RF amplifier is adjusted. Tight Squelch The squelch level at level “9” is adjusted. The performance of the interfering wave Battery Warning Battery Warning Level (LED blinking lev- is improved. Level el) is adjusted.
  • Page 37 Order Adjusutment Main Sub LCD As *2 Adjust item display (Analog (Analog (Analog (P25 (P25 (NXDN (NXDN item display Wide) Wide 4k) Narrow) Phase1) Phase2) Nar- Very Number row) Nar- row) Adjustment range LTR Deviation 9 *2 Transmitter Section 13 1~1024 DTMF Deviation DTMF...
  • Page 38 4.3.6 Panel tuning mode flow chart Note: * In this Panel tuning mode flow chart, the Adjustment item name is modified. Panel Test Mode Adjustment Item N/W/VN Adjustment Point LCD Display LCD Display ]hold For all adjustment items, press the [ ] key RX Assist 17 reference level...
  • Page 39 BER (Bit Error Rate) Measurement (1) The Panel Test Mode is used to measure the BER (Refer "4.2.1 Test mode operation features"). (2) Select "10" (P25 Phase1), "7" (P25 Phase2) and "7" (NXDN Mode) for test signaling (Refer to "4.2.3 Frequency and Signaling"...
  • Page 40 Nut wrench In order to turn the volume nut and the channel selector nut, use a recommendation tool. KENWOOD part No.: W05-1123-00 Battery Jig (W3F-0001-00) Connect the power cable properly between the battery jig installed in the transceiver and the power supply, and be sure output voltage and the power supply polarity prior to switching the power supply ON, otherwise over voltage and reverse connection may damage the transceiver, or the power supply or both.
  • Page 41 *PC tuning 100 10V PCB layout Connect the wires to the PCB in the connector case of interface cable. AF Voltmeter 100 10V For output the wires out of the connector case, need to process the connector case. 10 10V KPG-36U Audio generator Shield...
  • Page 42 Item Condition Measurement Adjustment Specifica- tions Panel test PC test mode Test- Unit Terminal Unit Parts Method /Remarks mode equipment 1)CH-Sig: 1-1 1)Test Channel Deviation Panel ANT Adjust AG 12.5mV AG: 1kHz Channel: 1 meter Univer- input to get ±5.8mV sensitivity PTT: ON Test Signaling Mode: Analog...
  • Page 43 Item Condition Measurement Adjustment Specifications /Remarks Panel tuning PC test mode Test- Unit Ter- Unit Parts Method mode equip- minal ment 1) Adj item: 1) Adj item: Panel [Panel [PC test mode] 2.5V±0.1V Receive [RAST] [Receive Assist] tuning [Automatic Adjust- [Automatic Ad- Assist Adjust:[****]...
  • Page 44 Item Condition Measurement Adjustment Specifications /Remarks Panel tuning PC test mode Test- Unit Ter- Unit Parts Method mode equip- minal ment 1) Adj item: 1) Adj item: Panel [Panel [PC test mode] 2.5V±0.1V Transmit [TAST] [Transmit Assist] tuning [Automatic Adjust- [Automatic Ad- Assist Adjust:[****]...
  • Page 45 Item Condition Measurement Adjustment Specifications /Remarks Panel tuning PC test mode Test- Unit Ter- Unit Parts Method mode equip- minal ment *The Frequen- 1) Adj item: Panel ANT Panel [Panel [PC test mode] [PC test mode] Frequency cy adjust- [Frequency] tuning Press [Start] button of “IF20”...
  • Page 46 Item Condition Measurement Adjustment Specifica- tions Panel tuning PC test mode Test- Unit Ter- Unit Parts Method /Remarks mode equip- minal ment 1) Adj item: 1) Adj item: Power Panel ANT Panel [Panel [PC test mode] Ramp [RAMPD] [Ramp Down Off- meter tuning 1) Set the adjustment...
  • Page 47 Item Condition Measurement Adjustment Specifica- tions Panel tuning PC test mode Test- Unit Ter- Unit Parts Method /Remarks mode equip- minal ment 1) Adj item: [BAL] 1) Adj item: Devia- Panel ANT Panel [Panel The Deviation of 20Hz 6kHz Tone de- Balance Adjust:[****] [Balance]...
  • Page 48 Item Condition Measurement Adjustment Specifica- tions Panel tuning PC test mode Test- Unit Ter- Unit Parts Method /Remarks mode equip- minal ment [Analog 1) Adj item: 1) Adj item: Devia- Panel ANT Panel [Panel Write fixed value “494” 2050~2150Hz Narrow] [An ADEV] [Maxmum Devia- tion...
  • Page 49 Item Condition Measurement Adjustment Specifica- tions Panel tuning PC test mode Test- Unit Ter- Unit Parts Method /Remarks mode equip- minal ment 9. P25 1) Adj item: 1) Adj item: Devia- Panel ANT Panel [Panel Write fixed value “498” 3090~3215Hz H-CPM [P2 P2DEV] [P25 H-CPM Devi-...
  • Page 50 Item Condition Measurement Adjustment Specifica- tions Panel tuning PC test mode Test- Unit Ter- Unit Parts Method /Remarks mode equip- minal ment [NXDN 1) Adj item: 1) Adj item: Devia- Panel ANT Panel [Panel Write fixed value “489” 1311~1363Hz Very [Nv NDEV] [NXDN High Devia- tion...
  • Page 51 Item Condition Measurement Adjustment Specifica- tions Panel tuning PC test mode Test- Unit Ter- Unit Parts Method /Remarks mode equip- minal ment [Analog 1) Adj item: 1) Adj item: Devia- Panel ANT Panel [Panel Write the value as fol- 0.35kHz±0.05 Narrow] [An QT] [QT Deviation (An-...
  • Page 52 Item Condition Measurement Adjustment Specifica- tions Panel tuning PC test mode Test- Unit Ter- Unit Parts Method /Remarks mode equip- minal ment [Analog 1) Adj item: 1) Adj item: Devia- Panel ANT Panel [Panel Write the value as fol- 0.35kHz±0.05 Narrow] [An DQT] [DQT Deviation...
  • Page 53 Item Condition Measurement Adjustment Specifica- tions Panel tuning PC test mode Test- Unit Ter- Unit Parts Method /Remarks mode equip- minal ment [Analog 1) Adj item: 1) Adj item: Devia- Panel ANT Panel [Panel Write the value as fol- 0.75kHz±0.05 Narrow] [An LTR] [LTR Deviation...
  • Page 54 Item Condition Measurement Adjustment Specifica- tions Panel tuning PC test mode Test- Unit Ter- Unit Parts Method /Remarks mode equip- minal ment [Analog 1) Adj item: 1) Adj item: Devia- Panel ANT Panel [Panel Write the value as fol- 1.25kHz±0.05 Narrow] [An DTMF] [DTMF Deviation...
  • Page 55 Item Condition Measurement Adjustment Specifica- tions Panel tuning PC test mode Test- Unit Ter- Unit Parts Method /Remarks mode equip- minal ment [Analog 1) Adj item: 1) Adj item: Devia- Panel ANT Panel [Panel Write the value as fol- 1.50kHz±0.05 Narrow] [An TONE] [Single Tone Devi-...
  • Page 56 Item Condition Measurement Adjustment Specifica- tions Panel tuning PC test mode Test- Unit Ter- Unit Parts Method /Remarks mode equip- minal ment [Analog 1) Adj item: 1) Adj item: Devia- Panel ANT Panel [Panel Write the value as fol- 1.50kHz±0.05 Narrow] [An MSK] [MSK Deviation...
  • Page 57 Item Condition Measurement Adjustment Specifica- tions Panel tuning PC test mode Test- Unit Ter- Unit Parts Method /Remarks mode equip- minal ment 1) Adj item: 1) Adj item: Power Panel ANT Press the PTT switch or Battery [BATT] [Battery Warning meter BATT [Transmit] button on the...
  • Page 58 4.9.1 Necessary Deviation adjustment item for each signaling and mode The following shows the necessary adjustment items for each signaling deviation. Please read the following table like the following example. In the case of the signaling “QT (Analog Wide)”, this signaling is composed of three elements [Balance, Maximum Deviation (Analog Wide) and QT Deviation (Analog Wide)].
  • Page 59 4.10 Receiver Section Item Condition Measurement Adjustment Specifi- cations Panel tuning mode PC test mode Test- Unit Ter- Unit Parts Method /Remarks equip- minal ment [Panel test mode] 1) Test Channel Panel ANT Panel Vol- Turn the Volume knob to 0.90V AF level 1) CH-Sig: 1-1...
  • Page 60 Item Condition Measurement Adjustment Specifi- cations Panel tuning mode PC test mode Test- Unit Ter- Unit Parts Method /Remarks equip- minal ment 4. Sen- 1) Adj item: 1) Adj item: Panel ANT Panel [Panel Write the value as follow- sitivity 2 [An SENS2] [Sensitivity 2] Uni-...
  • Page 61 Item Condition Measurement Adjustment Specifi- cations Panel tuning mode PC test mode Test- Unit Ter- Unit Parts Method /Remarks equip- minal ment [Analog 1) Adj item: 1) Adj item: Panel ANT Panel [Panel tuning mode] Narrow] [An SQL] [Open Squelch (An- Distor- Uni- After input signal from...
  • Page 62 Item Condition Measurement Adjustment Specifi- cations Panel tuning mode PC test mode Test- Unit Ter- Unit Parts Method /Remarks equip- minal ment [NXDN 1) Adj item: 1) Adj item: Panel ANT Panel [Panel tuning mode] Narrow] [Nn SQL] [Open Squelch Distor- Uni- After input signal from...
  • Page 63 Item Condition Measurement Adjustment Specifi- cations Panel tuning mode PC test mode Test- Unit Ter- Unit Parts Method /Remarks equip- minal ment 1) Adj item: 1) Adj item: Panel ANT Panel [Panel tuning mode] Tight [Aw SQLT] [Tight Squelch (Ana- Distor- Uni- After input signal from...

  • Page 64: Troubleshooting

    SECTION 5 TROUBLESHOOTING Fault Diagnosis of the BGA (Ball Grid Array) IC Overview: A flowchart 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. BGA parts: MPU/DSP (IC702), mobile DDR (IC703), Flash memory (IC705) When the BGA IC is problematic, please bring the printed circuit board (XC1-0341-82/XC1-0341-83) in for service.
  • Page 65 When a normal Checking the output signal value is confirmed. from the MPU/DSP. When an abnormal If the IC706 (1 pin) is 0V or 1.8V, the MPU/DSP Normal voltage Points to be checked value is confirmed. may be broken. After power-on, and /CS_F IC706 (4 pin) If the IC706 (2 pin) is 0V or 1.8V, the MPU/DSP 1.8V...
  • Page 66 Failure diagnosis of the GPS section Overview: When the GPS fuction does not operate, use this flowchart to determine the problem. Major parts for a GPS circuit GPS antenna (Connect on CN907) IC702 IC850 L857 Shee t metal IC852 LNA IC (IC851) UART UART Pre-SAW Filter (L857)
  • Page 67 When a normal condition is confirmed. [The reference clock circuit When an abnormal When an abnormal Verify the reference clock for the BT/GPS. for the BT/GPS is faulty]. condition is confirmed. condition is confirmed. (BT_CLK) Intersection of Check the PCB side B (c). Verify the PCB side A parts C850 and R861: Sine waveform, C850, R861, R862.
  • Page 68 [The GPS RF input circuit is faulty] Verify the RF input circuit for the GPS. When an abnormal Replace the GPS RF input circuit HPF, Pre-SAW, LNA, ATT, Post-SAW, condition is confirmed. parts. (only the parts which can be GPS IC RF Matching. replaced.) If any unexchangeable HPF parts: C882, C881, C880, L859, L858 parts are abnormal, replace the PCB.
  • Page 69 Failure diagnosis of the Bluetooth section Overview: When the Bluetooth function does not operate, use this flowchart to determine the problem. Major parts for a Bluetooth circuit IC702 IC852 IC850 Bluetooth antenna (Connect on CN909) UART UART Shee t metal L855 Level LC filter (L855)
  • Page 70 When a normal condition is confirmed. [The reference clock circuit Verify the reference clock for the BT/GPS. When an abnormal When an abnormal for the BT/GPS is faulty] (BT_CLK) Intersection of condition is confirmed. condition is confirmed. Verify the PCB side A parts Check the PCB side B (c).
  • Page 71 Check the PCB side B (a). When a normal condition is confirmed. When an abnormal [The BT/GPS power supply line 33BT circuit is faulty] condition is confirmed. [The BT/GPS IC is abnormal] Verify the PCB side B parts. Replace the PCB. IC39, IC38, C55, L850 Replace any abnormal parts.
  • Page 72 NXDN ESN number. 0341-80/XC1-0341-81). (R1, R2 and R3 are connected with GND (ground) only.) • When a new printed circuit board is used, the KENWOOD ESN changes, as does the Transceiver Information dis- Supplied Accessories of “Service Main unit”...
  • Page 73 ESN Label Layout ESN Label Note: Cut a UPC code and UPC barcode at dotted line. (No.RA015<Rev.001>)1-73...
  • Page 74 MEMO...
  • Page 75 SCHEMATIC DIAGRAM MAIN UNIT (XC1-0341-80(NX-5300(F2), NX-5300(F3), NX-5300(K2), NX-5300(K3)), XC1-0341-81(NX-5300(F5), NX-5300(F6), NX-5300(K5), NX-5300(K6))) HDQ_1 HDQ_1 HOLD_T Q320 L311 L312 L320 L321 L322 L330 L350 L354 R310 R311 R312 R324 R325 R326 R330 R331 R333 R335 R414 OVER VOLTAGE PROTECTION VOLTAGE REGULATOR(50C) SDET 1-80 120n...
  • Page 76 BLOCK DIAGRAM Q101 DSC9A01/T/ D101 1SS400SM/T/ Q11 1 EM6M2 Ripple DC SW 50VCO Filter Q103 Q102 IC702 F2,F3,K2,K3:- F2,F3,K2,K3:- F5,F6,K5,K6: IC100 F5,F6,K5,K6:EM6M2 SSM3J15FS SKY72310362LF F2,F3,K2,K3: 450-520MHz DC SW DC SW --------------------------------------------------------- VTX_H_/L --CODEC(IC902)-- F5,F6,K5,K6: 380-470MHz /CRST,MCLK,CODEC_DI,CODEC_DO IC712(2/2) IC102(1/2) --------------------------------------------------------- TC7WH14FK-F BU7242NUX --SD(J1)-- SD1_DAT [0]~SD1_DAT[3],SD1_CLK,SD1_CMD,/SD_DET...
  • Page 77 PRINTED CIRCUIT BOARD MAIN UNIT (XC1-0341-80 (NX-5300(F2), NX-5300(F3), NX-5300(K2), NX-5300(K3)), XC1-0341-81 (NX-5300(F5), NX-5300(F6), NX-5300(K5), NX-5300(K6))) --- Component side view (J79-0411-09) --- J79-0411-09 CN31 D201 R858 R859 L807 C222 C223 R806 C808 C807 Q210 R217 IC32 IC852 IC853 R745 Q800 CP851 R746 C891 C885...
  • Page 78 MAIN UNIT (XC1-0341-80 (NX-5300(F2), NX-5300(F3), NX-5300(K2), NX-5300(K3)), XC1-0341-81 (NX-5300(F5), NX-5300(F6), NX-5300(K5), NX-5300(K6))) --- Foil side view (J79-0411-09) --- CP600 C603 L601 R162 L600 C268 R260 R600 L602 C220 C880 C221 L857 R147 C168 C266 R184 C615 C788 C217 R247 C151 C611 L858 C219...
  • Page 79 A-1C ADDRESS TABLE OF BOARD PARTS Side Y axis Each address may have an address error by one X axis interval. REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION Q310 B- 4A D906...
  • Page 80 LEVEL DIAGRAM Receiver section RF (Center Frequency) 1st IF (49.95MHz) AF (1kHz) -119dBm -121.5dBm -122dBm -112dBm -110dBm -116dBm -105 dBm -102dBm 226mVp-p D350 D370 C352 D371 C549 C541 Q530 C533 C511 Q500 C558 XF670 C676 Q670 C670 Q660 C660 IC702 IC902 C926 IC904...
  • Page 81 PARTS LIST [NX-5300] * SAFETY PRECAUTION Parts identified by the symbol are critical for safety. Replace only with specified part numbers. * BEWARE OF BOGUS PARTS Parts that do not meet specifications may cause trouble in regard to safety and performance.
  • Page 82 Exploded view of general assembly and parts list Block No.M1MM MAIN UNIT<01> 3-2(No.RA015<Rev.001>)
  • Page 83 F2,F5,K2,K5 A8A-0005-00 REAR PANEL A1A-0005-00 CHASSIS B0K-0024-00 CAP(SD) B38-0960-05 LCD ASSY B4B-0006-00 CAUTION STICKER B4C-0105-00 TERMINAL STICKER B4D-0002-00 KENWOOD BADGE D32-0454-04 STOPPER(16CH) D3C-0001-10 STOPPER(CIRCULAR NUT) E04-0467-15 RF COAXIAL RECEPTACLE(SMA) E2D-0003-00 TERMINAL(ANT) E3H-0007-00 LEAD WIRE WITH CONNECTOR(SP) E58-0532-05 RECTANGULAR RECEPTACLE(14P) E7C-0001-00...
  • Page 84  Symbol No. Part No. Part Name Description Local N14-1012-00 CIRCULAR NUT(RO-SW) N83-2005-48 PAN HEAD TAPTITE SCREW(UNIT/FIX) (x10) N84-2004-43 PAN HEAD TAPTITE SCREW(TERM-BL(+,-)) (x2) XC1-0341-82 SERVICE MAIN UNIT F2,F3,K2,K3 XC1-0341-83 SERVICE MAIN UNIT F5,F6,K5,K6 3-4(No.RA015<Rev.001>)
  • Page 85 Electrical parts list MAIN UNIT  Symbol No. Part No. Part Name Description Local XC1-0341-80(NX-5300_F2,NX-5300_F3,NX-5300_K2,NX-5300_K3) SSM6N37FE XC1-0341-81(NX-5300_F5,NX-5300_F6,NX-5300_K5,NX-5300_K6) SSM3K15AMFV KTA2012EP TRANSISTOR *Note1 : This part cannot be replaced. There- EM6M2 EM6M2 fore, this part is not supplied as a service part. LTC014EEBFS8 DIGI TRANSISTOR 2SB1132(Q,R)
  • Page 86  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local D263 BB664-02V VARIABLE CAPACITANCE DIODE F5,F6,K5,K6 CK73HB1A105K C CAPACITOR 1.0UF K D350 L5208F DIODE CK73GB1E105K C CAPACITOR 1.0UF K D370 RN142S DIODE CK73GB1E105K C CAPACITOR 1.0UF K D371...
  • Page 87  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C147 CC73HCH1H1R5B C CAPACITOR 1.5PF B F2,F3,K2,K3 C259 CK73HB1H103K C CAPACITOR 0.010UF K C147 CC73HCH1H020B C CAPACITOR 2.0PF B F5,F6,K5,K6 C260 CC73HCH1H101J C CAPACITOR 100PF J F5,F6,K5,K6 C148...
  • Page 88  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C360 CC73HCH1H101J C CAPACITOR 100PF J C580 CC73HCH1H020B C CAPACITOR 2.0PF B F5,F6,K5,K6 C361 CC73JCH1H101J C CAPACITOR 100PF J C581 CC73HCH1H1R5B C CAPACITOR 1.5PF B F2,F3,K2,K3 C362...
  • Page 89  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C670 CK73HB1H103K C CAPACITOR 0.010UF K C767 C93-1959-05 C CAPACITOR 0.10UF K C671 C93-1953-05 C CAPACITOR 0.010UF K C768 C93-1959-05 C CAPACITOR 0.10UF K C672 CC73HCH1H150G C CAPACITOR...
  • Page 90  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C851 CK73HB1A105K C CAPACITOR 1.0UF K C933 CK73HB1E224K C CAPACITOR 0.22UF K C852 C93-1959-05 C CAPACITOR 0.10UF K C934 C93-1959-05 C CAPACITOR 0.10UF K C853 C93-1959-05...
  • Page 91  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local RK73HB1J474J MG RESISTOR 470K J 1/16W R163 RN73HH1J220D MG RESISTOR 22 D 1/16W F5,F6,K5,K6 RK73HH1J474D MG RESISTOR 470K D 1/16W R181 RK73HB1J103J MG RESISTOR 10K J 1/16W RK73HH1J474D...
  • Page 92  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R336 RK73GB2A000J MG RESISTOR 0.0 J 1/10W R607 RK73HB1J471J MG RESISTOR 470 J 1/16W R350 RK73GB2A823J MG RESISTOR 82K J 1/10W R608 RK73JB1H472J MG RESISTOR 4.7K J 1/20W...
  • Page 93  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R777 RK73GB2A000J MG RESISTOR 0.0 J 1/10W R932 RK73HB1J182J MG RESISTOR 1.8K J 1/16W R778 RK73HB1J000J MG RESISTOR 0.0 J 1/16W R933 RK73HB1J182J MG RESISTOR 1.8K J 1/16W...
  • Page 94  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local L311 LK73H0AM12NJ SMALL FIXED INDUCTOR(12NH) F5,F6,K5,K6 L806 L79-1984-05 FILTER L312 L41-1575-53 SMALL FIXED INDUCTOR(15NH) F2,F3,K2,K3 L807 LB73H0AV-002 CHIP FERRITE BEADS L312 L41-2275-53 SMALL FIXED INDUCTOR(22NH) F5,F6,K5,K6 L808...
  • Page 95  Symbol No. Part No. Part Name Description Local S68-0931-05 PUSH SWITCH TH400 ERTJ0V104H NEGATIVE TEMP THERMISTOR TH700 ERTJ0V104H NEGATIVE TEMP THERMISTOR X700 L77-3123-05 TCXO(19.2MHZ) X701 L77-1802-05 CRYSTAL RESONATOR(32.768KHZ) X850 L77-3121-05 CRYSTAL RESONATOR(32.768KHZ) XF670 L7B-0003-00 (No.RA015<Rev.001>)3-15...
  • Page 96 Packing materials and accessories parts list Block No.M2MM Packing and accessories Block No. [M][2][M][M]  Symbol No. Part No. Part Name Description Local B0K-0002-00 B5A-0049-00 INSTRUCTION MANUAL ------------ PAMPHLET G5D-0027-00 PACKING ------------ PROTECTION BAG (60/110/0.07) ------------ PROTECTION BAG (100/250/0.07) H5A-0012-00 ITEM CARTON CASE J29-0730-05 HOOK...
  • Page 97 MEMO...
  • Page 98 JVC KENWOOD Corporation Communications Equipment BU (No.RA015<Rev.001>) Printed in Japan...

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