UHF DIGITAL TRANSCEIVER NX-800 SERVICE MANUAL © 2007-12 PRINTED IN JAPAN B51-8803-00 (S) 343 Metallic cabinet (A01-2194-11) Key top (K29-9401-03) Panel assy (A62-1162-03) Microphone (T91-0639-35) CONTENTS GENERAL .................................................................. 2 SYSTEM SET-UP ...................................................... 4 REALIGNMENT ......................................................... 5 INSTALLATION .........................................................
NX-800 GENERAL Document Copyrights PERSONAL SAFETY Copyright 2007 by Kenwood Corporation. All rights reserved. No part of this manual may be reproduced, translated, distributed, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, for any purpose without the prior written permission of Kenwood. The following precautions are recommended for personal safety : • DO NOT transmit if someone is within two feet (0.6 meter) of the antenna.
NX-800 GENERAL 4. PLANNING THE INSTALLATION 4-1. General Inspect the vehicle and determine how and where the radio antenna and accessories will be mounted. Plan cable runs for protection against pinching or crushing wiring, and radio installation to prevent overheating. 4-2. Antenna The favored location for an antenna is in the center of a large, flat conductive area, usually at the roof center.
NX-800 SYSTEM SET-UP Merchandise received License and frequency allocated by FCC Choose the type of transceiver Are you using the remote kit? YES Frequency range RF power Type 450.0~520.0MHz 30W K See page 10. KRK-10 (Option) NO Are you using the ignition sense cable? YES See page 8. KCT-46 (Option) NO Transceiver programming Are you using the public address? See page 5.
NX-800 REALIGNMENT 1. Modes 4. Panel Tuning Mode Setting method refer to ADJUSTMENT. User mode Panel test mode 5. PC Mode Panel tuning mode 5-1. Preface Data programming mode PC mode Firmware programming mode PC tuning mode PC test mode The transceiver is programmed by using a personal computer, programming interface (KPG-46/46A) and programming software (KPG-111D). The programming software can be used with a PC or compatible. Figure 1 shows the setup of a PC for programming.
NX-800 REALIGNMENT 5-3. KPG-46/KPG-46A description (PC programming interface cable: Option) The KPG-46/46A is required to interface the transceiver to the computer. It has a circuit in its D-sub connector (KPG-46 : 25-pin, KPG-46A : 9-pin) case that converts the RS-232C logic level to the TTL level. The KPG-46/46A connects the 8-pin microphone connector of the transceiver to the RS-232C serial port of the computer. 5-4.
NX-800 REALIGNMENT 3. • How to enter the password with the microphone keypad; If you press a key while “CLONE LOCK” is displayed, the number that was pressed is displayed on the transceiver. Each press of the key shifts the display in order to the left. When you enter the password and press the [ ] key, * “CLONE MODE” is displayed if the entered password is correct. If the password is incorrect, “CLONE LOCK” is redisplayed.
NX-800 INSTALLATION 1. Ignition Sense Cable (KCT-46 : Option) The KCT-46 is an optional cable for enabling the ignition function. The ignition function lets you turn the power to the transceiver on and off with the car ignition key. 1-1. Connecting the KCT-46 cable to the transceiver 1. Open the KCT-46 fuse holder and insert a mini blade fuse (3A). ( q ) 2. While holding a clear protective cover, remove the black cap at the end of the yellow cable (ignition sense cable) of the transceiver. ( w ) 3.
NX-800 INSTALLATION 2. Horn Alert/P.A. Relay Unit (KAP-2 : Option) The Horn alert (max. 2A drive), Public address and External speaker function are enabled by installing the KAP-2 in the transceiver. 5. Place the relay unit at the position shown in Figure 2-2 and secure it to the chassis with a screw. 6. Remove the cap on the rear of the chassis by pushing it from the inside with your finger. ( r ) 7.
NX-800 INSTALLATION 3. Control Head Remote Kit (KRK-10 : Option) The KRK-10 remote kit is used to remotely operate the transceiver. 3-1. Installing the KRK-10 kit to the transceiver 1. 2. 3. 4. Remove the front panel from the transceiver. Install the KRK-10 main panel onto the transceiver. Install the KRK-10 rear panel onto the front panel. Connect the KRK-10 main panel to the rear panel with the cable. ■ Install the KRK-10 main panel onto the transceiver 4.
NX-800 INSTALLATION ■ Connect the KRK-10 main panel to the rear panel with the cable 10. Install the molded cover ( !3 ) over the connector on the main panel and secure it with two screws ( !4 ). 11. Insert the other 14-pin connector of the cable into the connector (CN4) of the interface unit (B/2) of the rear panel. ( !5 ) 12. Secure the cable bush on the rear panel and fit the waterproof packing (orange) ( !6 ) securely over top. 13.
NX-800 INSTALLATION 5. External Speaker (Option) 5-1. KES-3 The KES-3 is an external speaker for the 3.5-mm-diameter speaker jack. ■ Connection Procedure Insert the crimp terminal into the Square plug supplied with the KAP-2. ■ Connection Procedure 1. Connect the KES-3 to the 3.5-mm-diameter speaker jack on the rear of the transceiver. Black/White lead 4 Square plug (E59-0419-05) 5 Black lead Insulating cover (F29-0481-15) Fig. 5-3 Fig. 5-1 5-2.
NX-800 INSTALLATION 6. GPS Receiver Connection 6-1. Installing the GPS receiver 1. Remove the cabinet, top packing and shielding plate of the transceiver. 2. Remove the front panel from the transceiver. 3. Attach two cushions to the top of the GPS receiver. 4. Attach the GPS receiver to the shield case with two cushions as shown in Figure 6-2. 5. Solder each lead of the GPS receiver to a necessary location of each landing on the component side of the TX-RX unit (A/2). 6.
NX-800 INSTALLATION 6-2. Installing the GPS receiver together with the VGS-1 1. Remove the cabinet, top packing and shielding plate of the transceiver. 2. Remove the front panel from the transceiver. 3. Attach a cushion to the bottom of the VGS-1 as shown in Figure 6-5. Note : Be sure not to cover the connector with the cushion. 4. Insert the VGS-1 connector (CN1) into the TX-RX unit (A/2) connector (CN595). 5. Perform step 3 to 6 of “6-1. Installing the GPS receiver” described on page 13.
NX-800 DISASSEMBLY FOR REPAIR ■ Removing the speaker hardware fixture (J21-8481-03) and holder (J19-5485-02) 1. Precautions on Disassembly ■ TX-RX PCB (TX-RX unit A/2) Disassembly 1. Remove all screws and antenna terminals on the TX-RX PCB. 2. Rotate the bush of the power supply cable 90 degrees counterclockwise as viewed from the rear of the chassis ( q ) and remove the power supply cable from the chassis ( w ). 3.
NX-800 DISASSEMBLY FOR REPAIR 2. Precautions on Reassembly ■ TX-RX PCB (TX-RX unit A/2) Reassembly w 1. With the TX-RX PCB turned over, insert the flat cable from the D-sub PCB (TX-RX unit B/2) into the connector (CN600) on the TX-RX PCB. 2. Place the TX-RX PCB at its original position, tilt the TX-RX PCB and install the chassis as shown in Figure 3. q Fig. 4-1 CN403 Fig. 3 ■ FINAL shield case (F10-2489-03) installation procedure IC715 Black 1.
NX-800 DISASSEMBLY FOR REPAIR ■ D-sub cap installation procedure To improve water resistance, fit the D-sub cap into the Dsub terminal hardware fixture of the transceiver in the following order: w q 1. Fit the left side ( q ) of the D-sub cap into the hardware fixture. 2. Fit the right side ( w ) of the D-sub cap into the hardware fixture. 3. Fit the center ( e ) of the D-sub cap into the hardware fixture. Verify that the D-sub cap is in close contact with the hardware fixture. Fig.
NX-800 CIRCUIT DESCRIPTION 1. Overview 2. Frequency Configuration NX-800 is a UHF Mobile transceiver designed to operate in the frequency range of 450 to 520MHz. The unit consists of receiver, transmitter, phase-locked loop (PLL) frequency synthesizer, base band parts, power supply, and control circuits. The receiver is a double-conversion super heterodyne using first intermediate frequency (IF) of 58.05MHz and second IF of 450kHz.
NX-800 CIRCUIT DESCRIPTION 3-3. IF circuit The second IF signal is passed through the ceramic filter (CF201, CF202) to reject the adjacent channel signal. The filtered second IF signal is amplified by AGC amplifier. The signal from AGC amplifier is input to AD converter (IC510) through ceramic filter (CF203) and operational amplifier (IC201 and IC704). The first IF signal is passed through a four-pole monolithic crystal filter (XF202) to reject adjacent channel signal.
NX-800 CIRCUIT DESCRIPTION 4-2. Base Band Circuit 4. Transmitter System The audio signal output from the base band circuit is converted to digital data of a sampling frequency of 48 kHz. This digital data is sent to the DSP (IC502), and voice signals of 300Hz or lower and frequencies of 3kHz or higher are cut off and an audio range 300Hz to 3kHz is extracted.
NX-800 CIRCUIT DESCRIPTION 5-3. PLL IC (IC3) 5. PLL Frequency Synthesizer PLL IC compares the differences in phases of the VCO oscillation frequency and the VCTCXO reference frequency, returns the difference to the VCO CV terminal and realizes the "Phase Locked Loop" for the return control. This allows the VCO oscillation frequency to accurately match (lock) the desired frequency.
NX-800 CIRCUIT DESCRIPTION 6. Control Circuit The control circuit consists of CPU (IC510) and its peripheral circuits. IC510 mainly performs the following; 1) Switching between transmission and reception by PTT signal input. 2) Reading system, zone, frequency, and program data from the memory circuit. 3) Sending frequency program data to the PLL. 4) Controlling squelch on/off by the DC voltage from the squelch circuit. 5) Controlling the audio mute circuit by decode data input. 6-1.
NX-800 CIRCUIT DESCRIPTION +B +B F401 SB Q404 SB SW 5A F501 SB 80C IC403 AVR Q401 INV IC405 DC/DC Q412 50MC SW IC407 80T SW /OVRB 50MC 33A Q416 SW 33A-2 /BINT D_Sub 25Pin connector 33M IC409 AVR Q411 33BU SW 15M Internal Option Display Block TX circuit TXC 80R RX circuit RXC ASIC (Analog) IC410 DC/DC 150C IC404 AVR 50C Q409 50R SW 50R IC406 AVR 33C Assist, Tune circuit Audio circuit SBC IC402 AVR 80T RS-232C Driver Q408 80R SW IC408 AVR IC401 DET Audio Amp, Display Bloc
NX-800 COMPONENTS DESCRIPTION Display unit (X54-3640-10) Ref. No. 24 Part Name TX-RX unit (X57-7390-10) : NX-800 Description Ref. No.
NX-800 COMPONENTS DESCRIPTION Ref. No. Part Name Description Ref. No.
NX-800 COMPONENTS DESCRIPTION Ref. No.
NX-800 PARTS LIST CAPACITORS CC 45 TH 1H 220 J 1 2 3 4 5 6 Capacitor value Color* CC45 010 = 1pF 2 1 = Type ... ceramic, electrolytic, etc. 2 = Shape ... round, square, ect. 4 = Voltage rating 100 = 10pF 5 = Value 101 = 100pF 3 = Temp. coefficient 6 = Tolerance 102 = 1000pF = 0.001µF 0 = 22pF 2 Multiplier 2nd number 1st number 103 = 0.
NX-800 PARTS LIST indicates safety critical components. ∗ New Parts. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. L: Scandinavia Y: PX (Far East, Hawaii) Y: AAFES (Europe) K: USA T: England X: Australia P: Canada E: Europe M: Other Areas NX-800 (Y51-5150-XX) DISPLAY UNIT (X54-3640-10) New Ref. No. Address parts Parts No.
NX-800 PARTS LIST DISPLAY UNIT (X54-3640-10) TX-RX UNIT (X57-7390-11) New Ref. No. Address parts Parts No. Description Destination J31-0551-05 COLLAR L901,902 L903-905 L906 L907 L908 L41-1095-39 L92-0140-05 L92-0163-05 L92-0140-05 L92-0163-05 SMALL FIXED INDUCTOR(1.0UH) CHIP FERRITE BEADS CORE CHIP FERRITE BEADS CORE X901 L77-1950-05 CRYSTAL RESONATOR(11.
NX-800 PARTS LIST TX-RX UNIT (X57-7390-11) New Ref. No. Address parts Parts No. Description C8 C9 C10 CC73HCH1H080B CK73HB1E103K CC73HCH1H390J CHIP C CHIP C CHIP C 8.0PF B 0.010UF K 39PF J C11 C12 C13 C14 C15 CK73FB1A106K CC73HCH1H080B CK73HB1E103K CK73GB1E105K CC73HCH1H101J CHIP C CHIP C CHIP C CHIP C CHIP C 10UF 8.0PF 0.010UF 1.0UF 100PF K B K K J C16 ,17 C18 -23 C24 C25 ,26 C27 CK73HB1E103K CC73HCH1H101J CK73HB1A104K CC73HCH1H101J CK73HB1A104K CHIP C CHIP C CHIP C CHIP C CHIP C 0.
NX-800 PARTS LIST TX-RX UNIT (X57-7390-11) Ref. No. New Address parts Parts No. Description Destination Ref. No. New Address parts Parts No. Description C207,208 C210 C211 C212,213 C214 CK73HB1E103K CK73HB1A104K CC73HCH1H100B CK73HB1A104K CC73HCH1H680J CHIP C CHIP C CHIP C CHIP C CHIP C 0.010UF 0.10UF 10PF 0.10UF 68PF K K B K J C296,297 C298 C299 C301 C302 CC73HCH1H070B CK73HB1H471K CC73HCH1H220G CC73HCH1H100B CK73GB1H104K CHIP C CHIP C CHIP C CHIP C CHIP C 7.0PF 470PF 22PF 10PF 0.
NX-800 PARTS LIST TX-RX UNIT (X57-7390-11) New Ref. No. Address parts Parts No. Description Destination New Ref. No. Address parts Parts No. Description C441,442 C443,444 C445 C446 C447 CK73HB1E103K CK73GB1E105K CK73FB1A106K C92-0765-05 CK73HB1A224K CHIP C CHIP C CHIP C CHIP TNTL CHIP C 0.010UF 1.0UF 10UF 4.7UF 0.
NX-800 PARTS LIST TX-RX UNIT (X57-7390-11) Ref. No. New Address parts Parts No. Description Destination Ref. No. New Address parts Parts No. Description C757 C761 C762,763 C764 C765,766 CC73HCH1H150J CK73HB1E103K CK73HB1A104K CC73HCH1H220J CK73GB1E105K CHIP C CHIP C CHIP C CHIP C CHIP C 15PF 0.010UF 0.10UF 22PF 1.
NX-800 PARTS LIST TX-RX UNIT (X57-7390-11) New Ref. No. Address parts Parts No. Description Destination L214 L215 L40-1875-92 L39-1498-05 SMALL FIXED INDUCTOR(18NH) TOROIDAL COIL L216-219 L221 L222 L223,224 L225 L34-4565-05 L41-1878-14 L41-6878-14 L34-4568-05 L41-6878-14 AIR-CORE COIL SMALL FIXED INDUCTOR(18NH) SMALL FIXED INDUCTOR(68NH) AIR-CORE COIL SMALL FIXED INDUCTOR(68NH) L228 L230 L402,403 L404 L405 L40-2763-92 L92-0138-05 L92-0179-05 L92-0639-05 L33-1496-05 SMALL FIXED INDUCTOR(2.
NX-800 PARTS LIST TX-RX UNIT (X57-7390-11) Ref. No. New Address parts Parts No. Description Destination R142 R143 RK73HB1J104J RK73GB2A000J CHIP R CHIP R 100K 0.
NX-800 PARTS LIST TX-RX UNIT (X57-7390-11) New Ref. No. Address parts Parts No. Description Destination R410 R411 R413 R415 RK73HB1J684J RK73HB1J104J RK73HB1J474J RK73HB1J332J CHIP R CHIP R CHIP R CHIP R 680K 100K 470K 3.
NX-800 PARTS LIST TX-RX UNIT (X57-7390-11) Ref. No. New Address parts Parts No. Description Destination Ref. No. New Address parts Parts No. Description Destination R652 R654 R656 R658 R659-661 RK73HB1J104J RK73GB2A000J RK73HB1J471J RK73GB2A000J RK73HB1J104J CHIP R CHIP R CHIP R CHIP R CHIP R 100K 0.0 470 0.
NX-800 PARTS LIST TX-RX UNIT (X57-7390-11) New Ref. No. Address parts Parts No. Description Destination New Ref. No. Address parts Parts No. Description R825,826 R827 R828 R831 R833-835 RK73HB1J103J RK73HB1J332J RK73HB1J000J RK73HB1J000J RK73HB1J101J CHIP R CHIP R CHIP R CHIP R CHIP R 10K 3.3K 0.0 0.
NX-800 PARTS LIST TX-RX UNIT (X57-7390-11) Ref. No. Q101 Q102 New Address parts Parts No.
NX-800 EXPLODED VIEW B A A B C D :N09-2292-05 :N67-3008-48 :N87-2606-43 :N87-2608-48 1 1 35 34 D Cx2 D 37 Dx3 Dx2 Dx3 B B 28 29 Dx2 D IC715 38 23 IC403 64 Cx2 Cx2 65 IC102 Bx2 Dx2 D 26 D 27 40 D TX-RX unit (A/2) (X57-) 21 36 25 39 Dx2 2 A TX-RX unit (B/2) (X57-) A D 41 5 701 D 42 55 D D 20 32 32 53 702 Display unit (X54-) 54 704 43 703 706 60 7 705 32 8 11 32 707 3 57 24 56 59 62 4 52 40 Parts with the exploded numbers larger than 700 are not supplied.
NX-800 PACKING D C 711 63. MICROPHONE (T91-0639-35) 1 18. INSTRUCTION MANUAL (B62-2000-00) 712 30. FUSE(BLADE TYPE)15A/32V (F52-0024-05) 51. MIC HOLDER (J19-1584-15) 45. PACKING FIXTURE (H12-4235-05) 22. DC CORD ASSY (E30-7523-35) 2 61. SCREW SET (N99-2039-05) 58. BRACKET (J29-0726-03) 46. PACKING FIXTURE (H12-4236-05) 44. INNER CARTON CASE (H02-0630-03) 3 49. ITEM CARTON CASE (H52-2195-02) Parts with the exploded numbers larger than 700 are not supplied.
NX-800 TROUBLE SHOOTING 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: ASIC (IC510), DSP (IC502), FLASH (IC501), SRAM (IC503) When the BGA IC is problematic, please bring the printed circuit board (X57-7390-11) in for service. Various ESN/default adjustment values are written on the printed circuit board for service.
NX-800 TROUBLE SHOOTING ● Checking the signal output from the ASIC by software control Points to be checked SBC R408 When a normal value is comfirmed. Normal voltage 3.3V When an abnormal value is comfirmed. Remove R408. If the ASIC side is 0V, the ASIC/FALSH/SRAM may be broken. When a normal value is comfirmed. Points to be checked /DRST R841 ● Panel control (TX-RX unit) Points to be checked /PRST R506 (Signal side) Normal voltage 3.3V When an abnormal value is comfirmed.
NX-800 ADJUSTMENT Controls “FNC” not appears Key Power switch Volume Up/Down key Modular MIC jack Channel Up/Down key Function Display Microphone key [PTT] Transmit - [0] to [9] and [A] to [D], [#], [ ] Use as the DTMF keypad. If a key is pressed during transmission, the DTMF corresponding to the key that was presses is sent.
NX-800 ADJUSTMENT ■ Frequency and Signaling The transceiver has been adjusted for the frequencies shown in the following table. When required, readjust them following the adjustment procedure to obtain the frequencies you want in actual operation. • Test frequency Panel Tuning Mode ■ Preparations for tuning the transceiver Before attempting to tune the transceiver, connect the unit to a suitable power supply. Whenever the transmitter is turned, the unit must be connected to a suitable dummy load (i.e.
NX-800 ADJUSTMENT ■ Key operation ■ 5 reference level adjustments frequency Function Key Tuning point RX (MHz) TX (MHz) Push Hold (1 second) Low 450.05000 450.10000 [ ]/[ ] Adjustment value up/down Continuation up/down Low’ 467.55000 467.60000 [ ]/[ ] Volume up/down Continuation up/down Center 485.05000 485.10000 [ ] Auto adjustment start - High’ 502.55000 502.60000 [ ] Wide/Narrow/Very narrow - High 519.95000 519.
NX-800 ADJUSTMENT Order Adjusutment item Main LCD display Sub-LCD display Aw An Nn (Analog Wide) (Analog Narrow) Nv (NXDN Narrow) (NXDN Very Narrow) Adjustment range 12 QT Deviation QT - 13 DQT Deviation DQT - 14 LTR Deviation LTR - 15 DTMF Deviation DTMF - 16 Single Tone Deviation TONE - 17 MSK Deviation MSK - 18 CWID Deviation CWID - 19 Sensitivity 1 SENS1 20 Sensitivity 2 SENS2 21 RSSI Reference RRSSI 22 Open Squelch SQL 23 Low RSSI LRSSI 24 High RS
NX-800 ADJUSTMENT ■ Panel tuning mode flow chart Panel Test Mode [ ] [ 48 ]hold [ LCD Contrast CNTR ]press [ ]hold Adjustment Item N/W/VN LCD Display For all adjustment items, press the [ ] key to write the adjustment value.
NX-800 ADJUSTMENT Test Equipment Required for Alignment 1. Test Equipment Standard Signal Generator (SSG) 2. Power Meter 3. 4. 9. Deviation Meter Digital Volt Meter (DVM) Oscilloscope High Sensitivity Frequency Counter Ammeter AF Volt Meter (AF VTVM) Audio Generator (AG) 10. Distortion Meter 11. 12. 4Ω Dummy Load Regulated Power Supply 5. 6. 7. 8. Major Specifications Frequency Range 400 to 520MHz Modulation Frequency modulation and external modulation Output -127dBm/0.
NX-800 ADJUSTMENT Radio Check Section Condition Item Panel test mode 1. Frequency check 1) CH-Sig : 1-1 PTT : ON 2. High power check 1) CH-Sig : 1-1 PTT : ON 2) CH-Sig : 2-1 PTT : ON 3) CH-Sig : 3-1 PTT : ON 3. Low power check 1) CH-Sig : 1-1 PTT : ON 2) CH-Sig : 2-1 PTT : ON 3) CH-Sig : 3-1 PTT : ON 4.
NX-800 ADJUSTMENT Condition Item 5. Sensitivity check Panel test mode 1) CH-Sig : 1-1 SSG output Wide: –117dBm (0.32µV) (MOD: 1kHz/± 3kHz) Narrow: –117dBm (0.32µV) (MOD: 1kHz, Dev: ± 1.5kHz) PC test mode 1) Test Channel Channel : 1 Test Signaling Mode : Analog Signaling : 1 SSG output Wide: –117dBm (0.32µV) (MOD: 1kHz/± 3kHz) Narrow: –117dBm (0.32µV) (MOD : 1kHz, Dev: ± 1.
NX-800 ADJUSTMENT Condition Item 5. Frequency adjust Panel tuning mode * The Frequency adjustment can be performed only in PC test mode. PC test mode Measurement Testequipment Unit 1) Adj item: SSG [Frequency] 2) CH-Sig: 1-1 SSG output : -20dBm (CW (without modulation)) Caution: Perform the frequency adjustment under the following conditions. • Temperature range of +23˚C to +27˚C (+73.4˚F to +80.6˚F).
NX-800 ADJUSTMENT Condition Item Panel tuning mode PC test mode Measurement Testequipment 2. Low Transmit 1) Adj item:[LOLMT] Adjust:[****] Power Limit 2) Adj item: adjust [L LOLMT]→ [L’ LOLMT]→ [C LOLMT]→ [H’ LOLMT]→ [H LOLMT] Adjust:[****] PTT : ON Press [ ] key to store the adjustment value. 1) Adj item: Power [Low Transmit meter Power Limit] Ammeter 2) Adj item:[Low] [Low’] [Center] [High’] [High] PTT : Press [Transmit] button. Press [Apply All] button to store the adjustment value. 3.
NX-800 ADJUSTMENT Condition Item Panel tuning mode 1) Adj item:[Nn NDEV] Adjust:[****] Deviation meter LPF : 3kHz HPF : OFF [Narrow] 2) Adj item: [NnL NDEV]→ [NnL’ NDEV]→ [NnC NDEV]→ [NnH’ NDEV]→ [NnH NDEV] Adjust:[****] PTT : ON Press [ ] key to store the adjustment value. [Very Narrow] 1) Adj item:[Nv NDEV] Adjust:[****] 2) Adj item: [NvL NDEV]→ [NvL’ NDEV]→ [NvC NDEV]→ [NvH’ NDEV]→ [NvH NDEV] Adjust:[****] PTT : ON Press [ ] key to store the adjustment value. 1) Adj item:[An ADEV] 7.
NX-800 ADJUSTMENT Condition Item Panel tuning mode 8. QT Deviation 1) Adj item:[An QT] adjust *4 Adjust:[****] Deviation meter [Narrow] LPF : 3kHz HPF : OFF PTT : ON Press [ ] key to store the adjustment value. [Wide] 1) Adj item:[Aw QT] Adjust:[****] PTT : ON Press [ ] key to store the adjustment value. 9. DQT Deviation adjust *4 1) Adj item:[An DQT] Adjust:[****] Deviation meter LPF : 3kHz HPF : OFF PTT : ON Press [ ] key to store the adjustment value.
NX-800 ADJUSTMENT Condition Item Panel tuning mode 12.Single Tone Deviation (2TONE deviation adjust) adjust *4 1) Adj item:[An TONE] Adjust:[****] Deviation meter LPF : 15kHz HPF : OFF PTT : ON Press [ ] key to store the adjustment value. [Narrow] [Wide] 1) Adj item:[Aw TONE] Adjust:[****] PTT : ON Press [ ] key to store the adjustment value. 13.MSK Deviation adjust *4 1) Adj item:[An MSK] Adjust:[****] Deviation meter LPF : 15kHz HPF : OFF PTT : ON Press [ ] key to store the adjustment value.
NX-800 ADJUSTMENT ■ Mode, Signaling, Necessary adjustment and order Mode Signaling Analog Audio QT DQT LTR DTMF 2TONE MSK (FleetSync) Wide 1. Balance adjust 2. Analog Deviation adjust [Wide] 1. Balance adjust 2. Analog Deviation adjust [Wide] 3. QT Deviation adjust [Wide] 1. Balance adjust 2. Analog Deviation adjust [Wide] 3. DQT Deviation adjust [Wide] 1. Balance adjust 2. Analog Deviation adjust [Wide] 3. LTR Deviation adjust [Wide] 1. Balance adjust 2. Analog Deviation adjust [Wide] 3.
NX-800 ADJUSTMENT Condition Item Panel tuning mode PC test mode 3. Sensitivity 2 1) Adj item:[SENS2] adjust Adjust:[***] (BPF adjust) 2) Adj item: [L SENS2]→ [L’ SENS2]→ [C SENS2]→ [H’ SENS2]→ [H SENS2] Adjust:[***] Press [ ] key to store the adjustment value. 1) Adj item:[Sensitivity 2] 2) Adj item:[Low] [Low’] [Center] [High’] [High] Press [Apply All] button to store the adjustment value. 4.
NX-800 ADJUSTMENT Condition Item 5. Open Squelch adjust *6 (Squelch level 5 adjust) Panel tuning mode 1) Adj item:[An SQL] Adjust:[***] 2) Adj item: [AnL SQL]→ [AnL’ SQL]→ [AnC SQL]→ [Analog [AnH’ SQL]→ Narrow] [AnH SQL] SSG output: 12dB SINAD level +1dB (MOD: 1kHz, Dev: ± 1.
NX-800 ADJUSTMENT Condition Item Panel tuning mode 6. Low RSSI at 1) Adj item:[An LRSSI] -118dBm Adjust:[***] adjust *7 2) Adj item: [AnL LRSSI]→ [Analog [AnL’ LRSSI]→ Narrow] [AnC LRSSI]→ [AnH’ LRSSI]→ [AnH LRSSI] SSG output : -118dBm (0.28µV) (MOD: 1kHz, Dev: ± 1.5kHz) [Analog 1) Adj item:[Aw R LRSSI] Wide] Adjust:[***] 2) Adj item: [AwL LRSSI]→ [AwL’ LRSSI]→ [AwC LRSSI]→ [AwH’ LRSSI]→ [AwH LRSSI] SSG output : -118dBm (0.
NX-800 ADJUSTMENT Condition Item Panel tuning mode 7. High RSSI at 1) Adj item:[An HRSSI] -80dBm Adjust:[***] adjust *8 2) Adj item: [AnL HRSSI]→ [Analog [AnL’ HRSSI]→ Narrow] [AnC HRSSI]→ [AnH’ HRSSI]→ [AnH HRSSI] SSG output : -80dBm (22.4µV) (MOD: 1kHz, Dev: ± 1.5kHz) [Analog 1) Adj item:[Aw R HRSSI] Wide] Adjust:[***] 2) Adj item: [AwL HRSSI]→ [AwL’ HRSSI]→ [AwC HRSSI]→ [AwH’ HRSSI]→ [AwH HRSSI] SSG output : -80dBm (22.
NX-800 TERMINAL FUNCTION Display unit (X54-3640-10) Pin No. Name SPO Function J901 (MIC jack) 1 DM MIC data detection. Speaker input. 2 HOOK/RXD HOOK:Hook detection, RXD:Serial data input. MIC MIC signal input. 7 GND Ground. 3 8 80C 8V input. 4 ME MIC ground. PTT/TXD PTT:PTT input, TXD:Serial data output. 9,10 SB Power input of switched power supply. 5 11 NC Non-connection. 6 E Ground. 7 SB Power output of switched power supply. DC13.6V± 15%, 200mA typ.
NX-800 TERMINAL FUNCTION Pin No. Name Description Pin No. Name Description 7 SHIFT Control signal output of Beat-shift function 8~11 GND Ground 1 SB Power output of switched power supply. CN705 12 /PRST Display CPU reset signal output 2 SPI Speaker output. 13 AFO RX filtered AF signal output 3 SPO Speaker input. 14 GND Ground 4 PA Control signal output of PA function. 15 ME MIC ground 5 HOR Control signal output of Horn alert function.
NX-800 TERMINAL FUNCTION Pin No. Name Description J901 (ACC. D-Sub 25pin) 1 NC 2 RXD1 3 TXD1 4 AUXIO9 5 DI 6 MI2 7 GND 8 AUXIO8 9 TXD2 10 RXD2 11 GND 12 AUXIO7 13 AUXIO6 14 SB 15 AUXO2 16 AUXO1 17 AFO 18 GND 19 DEO 20 AUXIO5 21 AUXIO4 22 AUXIO3 23 AUXIO2 24 AUXIO1 25 ME Refer to "D-sub 25-pin connector specification".
NX-800 TERMINAL FUNCTION CN595 26-pin connector specification Pin No. Pin Name 1 2 3 OPT1 OPT3 26P_RD I/O I/O I/O I Signal Type Digital/CMOS Out/CMOS Inwith Interrupt Digital/CMOS Out/CMOS Inwith Interrupt Digital/CMOS Inwith Interrupt Rating and Condition Parameter Min 26P_TD O Digital/CMOS Out 6 7 NC OPT4 OPT10 - I/O O 2.7 - 3.5 V -0.3 - 0.7 V VOH(Io=-2mA) 2.8 - 3.4 V VOL(Io=2mA) - - 0.7 V VIH 2.7 - 3.5 V VIL -0.3 - 0.7 V VOH(Io=-2mA) 2.8 - 3.
NX-800 TERMINAL FUNCTION Pin No. Pin Name 16 DTI I/O I Signal Type Analog Rating and Condition Parameter Min Typ Max Unit Input Level - 0.6 - Vp-p - 0.1 - uF 22 - - kΩ Coupling Capacitor Input Impedance 17 18 19 20 21 OPT8 OPT11 OPT7 OPT2 TXO I/O I/O I/O I/O O Digital/CMOS Out/CMOS Inwith Interrupt Digital/CMOS Out/CMOS In Digital/CMOS Out/CMOS Inwith Interrupt Digital/CMOS Out/CMOS Inwith Interrupt Analog VIH 2.7 - 3.5 V VIL -0.3 - 0.
NX-800 TERMINAL FUNCTION CN595 26-pin connector specification Pin No.
NX-800 TERMINAL FUNCTION Pin No.
NX-800 TERMINAL FUNCTION D-sub 25-pin connector specification Pin No. Pin Name 1 2 NC RXD1 I/O - I A/D - Digital Rating and Condition Parameter Min Input Voltage Range -30 Threshold Low 0.5 Threshold High Voltage Swing (3kΩ Load) O Digital ±5 Baud Rate CL 4 5 6 7 8 9 AUXIO9 DI MI2 GND AUXIO8 TXD2 I/O I I - I/O O Digital Analog Analog Digital Digital RXD2 I Digital 11 GND - GND 4 VIL -0.5 4 VOH (Io=-1.5mA) V 2.
NX-800 TERMINAL FUNCTION Pin No. Pin Name I/O A/D Rating and Condition Parameter Min Typ Max Unit The type of this port is open collector. 16 17 18 AUXO1 AFO GND O O - Digital Analog VOL 0.4 V IOL -500 mA Output Level 0.7 Vp-p Coupling Capacitor 0.
A B C D E F G H I J NX-800 PC BOARD 1 TX-RX UNIT (X57-7390-10) (B/2) Component side view (J79-0130-19 B/2) 2 25 C923 R913 C910 R912 C909 R911 C921 R910 C920 R905 C914 R906 C916 R907 C917 R908 C918 C919 R909 R904 C913 C912 R903 R902 C911 3 14 13 1 D906 5 C903 AUXIO6/BER CK 1 AUXIO7/BER DT AUXIO1 AUXIO2 RXD2/DI AUXIO3 TXD2/AUXIO9 AUXIO4 AUXIO8 AUXIO5 AUXIO9/CTS AUXO1 TXD0 AUXO2 RXD0 GND ME MI2 DEO GND 50C DI/RTS AFO SB SB SB SB SB SB NC/RSSI 30 C902 Ref. No.
14 72 J79-0130-19 A/2 OPT9 4 3 IC407 5 1 R918 R919 R44 IC514 4 1 L32 18 R15 19 C19 R17 C20 C21 25 1 R18 C591 L35 R13 CV C440 33V 5V_2 DGND CN597 IC3 R637 C471 L31 C15 + C35 C23 R19 C24 R658 R133 R132 C134 1 8 R134 IC101 4 D2 R117 C125 C450 C434 C452 C437 IC518 R120 C28 R23 C22 C18 C137 R21 C27 C25 CN402 GND C806 CN403 C410 R403 C406 I R31 R30 C33 R36 R54 R53 D410 R35 R29 R25 C421 C419 R37 7 R119 O R115 C120 R122 R123 C136 D102 1 C25 R12 4 3 IC406 5 1 L4
J K L M N O P Q R S NX-800 PC BOARD 1 TX-RX UNIT (X57-7390-10) (A/2) Component side view (J79-0130-19 A/2) 2 Ref. No. Address Ref. No.
A 1 B C NX-800 D E F G H I J PC BOARD TX-RX UNIT (X57-7390-10) (A/2) Foil side view (J79-0130-19 A/2) 2 Ref. No. Address Ref. No. Address Ref. No.
J K L M N O P Q R S NX-800 PC BOARD 1 TX-RX UNIT (X57-7390-10) (A/2) Foil side view (J79-0130-19 A/2) R411 C417 C811 C809 2 C810 3 R410 D406 R409 Q710 R828 Q407 I IC404 4 5 C611 8 Q707 30 C794 R813 C791 C607 C606 C605 C604 C603 C602 R815 C601 C793 R809 C600 R812 G C599 D S Q706 C598 R804 CN600 R801 R806 7 C610 C609 C608 S D G G C773 8 IC709 C597 1 C787 C766 C770 1 R774 R731 R775 1 Q705 R787 D705 C764 R779 R786 C783 R797 C784 R798 C782 R796 R793 C763 4 IC
A 1 B C NX-800 D E F G H I J PC BOARD DISPLAY UNIT (X54-3640-10) Component side view (J79-0157-19) R981 C963 R974 R982 R973 R972 R970 R971 R969 R968 R967 C956 R962 C955 C954 C953 C952 C951 LEFT UP C950 C949 2 PSW 3 D922 D916 D914 R925 D915 D929 C922 R923 C924 D921 R945 R921 D920 C923 5 D919 R922 R924 C925 D912 4 D935 DM/KVL HK/RXD MIC PTT/TXD 6 LEFT DOWN J901 ME E D932 D927 D931 SB BLC/AFO PF1 PF2 7 76 14 L905 C946 R946 R947 R944 R996 Q
J K L M N O P Q PC BOARD R S NX-800 1 DISPLAY UNIT (X54-3640-10) Component side view (J79-0157-19) 2 Ref. No. Address Ref. No.
A B NX-800 1 C D E SCHEMATIC DIAGRAM TX-RX UNIT (X57-7390-10) R : 13.57V T : 13.09V L402 CN401 IC405 LT1616ES6-PBF 5.01V 2 D409 1 470p 120k C454 R431 18k DC/DC Converter (50M) 2 L405 22uH 22k D407 IC405,D407,409 R430 50M 1SS388F R432 BooST 10u C446 4.7u16 + SW 10u C445 GND C475 C431 4.7u C430 4.7u REVERSE PROTECTION VIN C468 6 3 FB SHDN 5 0.01u 4 L404 CRS02-Q R : 13.57V T : 13.07V 5A F401 C428 100p C427 470p C419 1000p CN402 SURGE ABSORPTION C421 0.
F G H I J NX-800 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7390-10) 4.95V C49 12n 10p 0.92V 5p 1.44V 270 R46 470p Q3 2SC5636 C53 5p 150k L4 47p C46 C34 C36 18n 3p R47 C39 L10 C52 10 470p R43 50C BUFFER AMP (PLL FIN) BYPASS DIODE D2 DA221 C38 0.1u V+ R76 4 INPUT- 100p INPUT+ C29 C25 100p 1u 180k 3 470k BUFFER AMP (VCO TUNE) 47k 0 R36 10M 5 V- R31 2 R30 1 OUTPUT 13.72V R81 33p IC4 LMC7101BIM5 14.30V C14 R7 0 10k Q1 2SC5383-T111 R80 R22 1k 14.
K L NX-800 M N O SCHEMATIC DIAGRAM C70 470p 27n L25 L22 220n 180 180 470k 50R R219 10u 470p 0.01u L205 0.01u C339 R226 47k R234 10k RSSIo 15 LIMo QUADi AMSW FMDETo AMDETo 1st IF AMP R230 22k 17 RFAGCo 16 FMIFdecp2 C221 0.01u C336 5.6k C358 0.1u R329 2.7k Q212 EMD9 AGCAMPo 0 Q204 2SC3356(R23) 14 R228 13 22k 47k C333 12 10k R215 oUT FMIFdecp1 R235 0 10 FMIFi RX C341 R334 1u 0.74V C233 1u C227 82p 270k R224 10k 9 R223 NAMPi 19 C338 0.
P Q R S T NX-800 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7390-10) R160 R69 D101 C101 R103 C104 R106 C105 C109 7p 0 0 0 HVC131 1000p 5.6 100p 220 100p 6p 18n C118 6p 22n 330 L103 R114 100p 100p C116 L102 100p C117 270 R267 470p 1k R274 470p 270 12p C271 270 18 R275 1p 6p C280 2p R272 R273 7p C276 C275 C273 C272 1.20V 6.
X57-739 5/16 BUFFER AMP (BPF TUNE) 5 4 IC205 LMC7101BIM5 14.33V 2 1 OUTPUT INPUT+ V- 3 BUFFER AMP (BPF TUNE) V+ 5 IC206 LMC7101BIM5 100k R303 100p 8T 8p 1SV286F C319 2p C323 LNA L224 4p 68n 12p C324 C325 L225 8.01V 4p 2.7n L228 HVC131 D216 ANTENNA SWITCH C322 100k 470p 2p C321 0 R156 -t TH102 100k C194 470p R161 3.3k 82k 100p R151 120k C181 100p 100p C180 R150 C175 100p C172 D109 HSM88AS-E D110 HSM88AS-E 3p C179 3p C170 0.5p 9.
Z AA AB AC AD NX-800 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7390-10) HD2 33M 15M X2_CLKIN 3 3 4 /HINT /HRDY /DRST 5 4 C514 0.1u R525 100k C512 0.1u 0 C508 R515 100k /BER_EN 470k R841 L503 3.31V 1000p R510 L502 1.48V 4 5 3 5 3 4 5 15M_1 B9 A9 D8 C8 B8 A8 C504 B7 0.1u A7 C7 /RD D7 A6 /HDS2 C506 B6 0.1u C6 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 C505 D6 A5 B5 C5 D5 A4 B4 C4 A3 B3 C3 A2 0.
AE AF NX-800 AG AH AI SCHEMATIC DIAGRAM TX-RX UNIT (X57-7390-10) HD2 HD2 X2_CLKIN 33M 33BU 50C X2_CLKIN 3 3 4 3 4 4 /CS2 /CS0 SCTAM1 5 /RD 5 /RD 5 A16 D6 D2 3 D7 D3 4 D0 D5 D2 D7 D8 D10 D12 D14 4 D 3.
AJ AK AL AM AN NX-800 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7390-10) HD2 HD2 R572 22 X2_CLKIN ASQDET A2 B1 B2 A17 A18 B17 B18 U17 U18 V17 V18 U1 U2 V1 V2 A3 C3 C5 B16 D4 D6 C16 C18 F15 T16 N4 T1 A1 NC1 NC2 NC3 NC4 NC5 NC6 NC7 NC8 NC9 NC10 NC11 NC12 NC13 NC14 NC15 NC16 NC17 NC18 NC19 NC20 NC21 NC22 NC23 NC24 NC25 NC26 NC28 NC29 NC30 RXD1 TXD2 TI V8 PWM2 P4 PWM1 KEYo4 R4 U12 KEYo3 KEYo2 V13 KEYo1 U11 T12 KEYo0 KEYI4 T11 9 V12 TXD
AO AP NX-800 AQ AR AS SCHEMATIC DIAGRAM TX-RX UNIT (X57-7390-10) HD2 HD2 X2_CLKIN GPIo7 GPIo6 GPIo5 GPIo4 GPIo3 GPIo2 GPIo1 GPIo0 SIMRST SIMCK SIMDT SYMTIM FSDET TXRVE TRAMP TMoD PSTPA PSTIF PSTPLL RXRVE RXSLT PSRRF PSRIF PSRPLL RSSIT VFRM VoINT MCo2 MCCS2 MCCK2 MCCR1 MCCX1 MCo1 MCI1 MCCK1 MCCS0 IFVR C541 0.1u D L508 ASQDET D 1.
AT AU AV AW AX NX-800 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7390-10) HD2 2 33GPS 33M 50C 80C X2_CLKIN 2 /PCS_RF 2 R915 0 33M_4 1 INB 3 IC508 SM5023CNDH-G XTN INHN C530 0.01u 2 3 oUTPUT 1 4 GND VCC BUFFER AMP (18.432MHz) VC 1SS416 AND (PCS RF/HD2) 2 R594 1k 1 C531 0.1u oUTY REVERSW CURRENT PREVENTION (PCS RF) D 100k XT R596 VDD C532 3 VSS Q 0.01u 0.1u C528 6 470k 5 R581 4 D503 4 GND X502 18.432MHz 3.31V 5 VCC 2 INA C536 3.31V 0.
AY AZ NX-800 BA BB BC SCHEMATIC DIAGRAM TX-RX UNIT (X57-7390-10) 2 IF_DET 33A_2 2 33A_2 2 2nd IF BUFF 4 3 R748 6 4 5 VSS OPT10 82k C736 100p 2 1.63V R753 C742 R766 C748 56k 0.1u 100k 0.1u 1.63V 0 LPF/SUM AMP 100k 0.01u 7 R759 22k R734 C725 0.01u 1.31V R725 68k 1.63V 8 VDD 220p 56k 68k C721 R724 0 C715 0.1u 1 1200p 10k 33k R733 R716 C732 1.31V IC706 TC75W51FK(F) MIC AA C707 3 R730 VINVIN+ 1.63V R722 C710 0.01u 3.28V C729 0.
BD BE BF BG BH NX-800 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7390-10) 33A_2 50R 33A_2 2 OPT10 OPT10 11 11 11 SQ VOLTAGE CONTROL APC 1u 100k 0.1u 270k C737 C718 Q702 2SC4617(Q) NOISE AMP 470k R761 -t R762 TH701 100k C741 0.15u 4700p C738 1000p 330k R747 4 2 3 VSS R727 R751 270 2.2k R721 8.2k 220p 220p Q701 SSM3K15TE(F) 47k R715 3.3k R750 C818 10k 5 6 7 8 VDD 0.01 C716 R709 1000p R760 1.
BI BJ NX-800 BK BL BM SCHEMATIC DIAGRAM 33A_2 50C TX-RX UNIT (X57-7390-10) OPT10 /INAMT /INAMT 11 2 1 11 SDO0 SCK0 /EVCS MP VCO_MOD R835 100 0.1u 470k C799 OPT10 SW R820 VIN8 Q708 2SA1832(GR)F 24 VoUT8 VIN7 VoUT7 23 22 GND 21 20 D0 RESET VDAREF 18 17 19 VIN6 VoUT6 16 VoUT5 15 14 13 VIN5 1.62V 47k R817 VIN1 1 2 3 VIN2 VoUT1 5 4 3.28V VoUT2 CLK VDD R834 100 6 7 1 1.
BN BO BP BQ BR NX-800 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7390-10) SB 0V C802 1u R662 470k Q710 DTC363EU R674 100k R673 100k D512 DA204U R672 100k R660 100k R661 100k AF MUTE DC SW 13 GND AO1 10 AIO9 9 8 AIO8 7 AIO7 6 R670 100k P06 P05 P07 A2 P04 A1 HOR AO2 11 R671 100k 14 P14 P13 15 P16 P10 I/O EXPANDER 1 0.1u C596 24 PA 12 P12 P11 IC517 VCC INT 23 LEVEL SHIFT (I2CCK/I2CDT) 9 SDA 5 22 P03 21 4.
BS BT NX-800 BU BV BW SCHEMATIC DIAGRAM TX-RX UNIT (X57-7390-10) OUT GND2 VCC IC715 LA4425A 13.54V 5 3 4 2 1 IN GND1 SB C807 47u25 + C811 1000p C809 1000p C806 330u16 + 6.38V C805 1000p 1000p C803 C804 1000p 1.34V CN705 1 SB R831 0 PA HOR 2 SPI 3 SPO 4 PA 5 HOR 6 GND C810 D-SUB25 D903 LINE PROTECTION (BER CK) EXT.
BX BY BZ CA CB NX-800 SCHEMATIC DIAGRAM Note : The components marked with a dot ( ● ) are parts of layer 1. DISPLAY UNIT (X54-3640-10) C925 1k 1000p R924 CH UP "PF3" VOL DOWN CH DOWN "PF2" "PF1" C922 1k VOL UP 1000p R925 "PF4" 100p SPO 24 1000p 23 C582 22 1000p 21 C583 20 SB /PSW 26 25 C581 80C R630 1k 1000p 19 C584 17 100p 16 18 SPO SPO GND GND 8C 8C SB SB SB SB NC NC PSW /PSW GND GND GND GND MIC MIC 4 KEY MATRIX R921 5 15 3.
CC CD NX-800 CE CF CG SCHEMATIC DIAGRAM DISPLAY UNIT (X54-3640-10) D936 B30-2282-05 B30-2282-05 D927-936 KEY BACK LIGHT 820 R966 D930 B30-2282-05 D935 D929 820 390 R964 D927 390 270 R963 R958 R956 R965 D931 D932 B30-2282-05 D934 D933 D928 D925 D926 B30-2281-05 D918 D924 D917 270 R957 R954 47 270 R955 270 B30-2281-05 D923 D921 D916 D922 B30-2281-05 D919 D920 10k KEY 4.
CH CI CJ CK CL NX-800 SCHEMATIC DIAGRAM 1 Note : The components marked with a dot ( ● ) are parts of layer 1. V4 V5 V3 V2 6 5 4 3 2 1 C954 1u C953 1u C952 1u C951 1u C950 1u C949 1u 20 D11 L907 33C C962 D4 0.1u D12 D5 21 D13 D6 CP917 100k CP909 100k 5C D14 D7 D15 15 0.
NX-800 INTERCONNECTION DIAGRAM CN901 30 GND GND RXD TXD INT SP CN902 5C 2 NC SHIFT SPO GND GND GND GND GND PRST 1 AFO GND ME X54-364*-** DISPLAY UNIT MIC GND GND PSW NC SB SB 80C GND J901 SPO 1 DM HK MIC ME PTT E SB BLC 8 SPO SPO SPO SPO SPO CN905 LCD 96 /CS /RES A0 /WR D0 D1 D2 D3 D4 D5 D6 D7 VD D VSS VD D V1 V2 V3 V4 1 V5 1 20
NX-800 INTERCONNECTION DIAGRAM IC102 RA30H4452M123 1 4 80C TXI OPT6 RXEI TXO RXEO OPT7 OPT2 DTI OPT8 OPT11 50C OPT9 AO GN D AI GN D OPT5 DGND NC OPT4 OPT1O RD TD OPT3 1 ANT OPT1 1 CN595 IGN 2 GND 26 PIN BOARD TO BOARD CONNECTO R R152 CN403 CN705 1 SB SPI SPO CN597 PA 1 HO R GND EXT SP GN D GND 6 RXD TXD + NC 50C CN401 SHIFT 13.
NX-800 BLOCK DIAGRAM DCin (13.6V) GND CN401 IC1 LM73CIMKX-0 33C +B F401 F53-0328-05 DCDC Converter CN402 50M IC405 XC6204B332P1 3.3V AVR 3.3V AVR SBC_2 DC SW DC SW Q412 2SA1955A-F 33A 1.5V AVR Q416 SSM6L05FU IC409 XC6205B152PRN 33A2 50MC DC SW Q405 2SA1955A-F 33M SBC_2 D408 1SS301F 1.5V AVR 15M TCXO_MOD VCTCXO 19.
NX-800 BLOCK DIAGRAM 150C 50C Q1 2SC5383-T111 Q4 2SC5383-T111 Ripple FILTER Ripple FILTER /T_R ASSIST T/R SW BUFF Q11 SSM6L05FU Q12 2SJ347F IC4 LMC7101BIM5 80T 50C LOOP FILTER VCO Q5,Q6 2SK508NV(K52) T/R SW BUFF BUFF Q9 2SC5636 Q10 2SC5636 AMP D103 L407CDB D106 L7091CER SB DRIVE FINAL AMP Q101 2SC5108(Y)F IC5(1/2) TC75W51FK(F) CV IC5(2/2) TC75W51FK(F) ANT LPF ANT SW AMP Q102 2SC5455-A IC102 RA30H4452M123 TEMP DET 80T IC712(7/8) M62364FP-F DAC VCO_MOD 50C Fin APC MP /H_L
NX-800 LEVEL DIAGRAM Receiver Section Radio Frequency –118dBm –120.5dBm 58.05MHz –114.5dBm 450kHz –112.5dBm –121.5dBm –118.0dBm –104dBm –72.0dBm ANT D212,D213 RF AMP 1st MIX DBM Q210 D207~D210 IC204 BPF BPF XF202 IF AMP Q205 IF AMP Q204 FM SYSTEM IC IC202 MCF Buff AMP Buff AMP Buff AMP Q9 Q10 Q208 RX VCO CF CF201 CF202 W:-85.5dBm W:-92.0dBm N:-83.0dBm N:-93.0dBm BPF 0dBm 0dBm SG input level for 12dB SINAD are obtained Measured by connecting SG to each point via a 0.01µF capacitor.
NX-800 LEVEL DIAGRAM Audio Frequency –82.0dBm –82.0dBm IF AMP IC201 CF203 (ASIC) E1 IC510 (RXAF SMF) 3 4 IC701 K1 226mVrms (EVOL) VOL=20 (RX SUM) 6 IC711 4.00Vrms 96mVrms 7 13 IC712 (SP AMP) 14 1 IC715 4 J701 4Ω CF 226mVrms 186mVrms AF VTVM AF level obtained when the AF output level is adjusted for 4.00V/4Ω with the front panel AF VOL control. Measured with AF voltmeter connected to the external speaker jack, receiving a –53dBm SSG signal modulated at 1kHz, DEV. WIDE 3kHz (NARROW 1.
NX-800 SPECIFICATIONS GENERAL Frequency Range ...................................... 450~520MHz Number of Channels ................................. 512 Zones ........................................................ 128 Max. Channels per Zone ........................... 250 Channel Spacing ........................................ Analog : 12.5/25 kHz Digital : 6.25/12.5 kHz Operating Voltage ..................................... 10.8~15.7V Operating Temperature Range..................
A B C D E F G H I J NX-800 PC BOARD 1 TX-RX UNIT (X57-7390-10) (B/2) Component side view (J79-0130-19 B/2) 2 25 C923 R913 C910 R912 C909 R911 C921 R910 C920 R905 C914 R906 C916 R907 C917 R908 C918 C919 R909 R904 C913 C912 R903 R902 C911 3 14 13 1 D906 5 C903 AUXIO6/BER CK 1 AUXIO7/BER DT AUXIO1 AUXIO2 RXD2/DI AUXIO3 TXD2/AUXIO9 AUXIO4 AUXIO8 AUXIO5 AUXIO9/CTS AUXO1 TXD0 AUXO2 RXD0 GND ME MI2 DEO GND 50C DI/RTS AFO SB SB SB SB SB SB NC/RSSI 30 C902 Ref. No.
A C NX-800 D E F G H I J K L M N O P PC BOARD TX-RX UNIT (X57-7390-10) (A/2) Component side view (J79-0130-19 A/2) J701 EXT. SP Q R S NX-800 PC BOARD R401 C410 2 2 R831 CN403 1 Ref. No. Address Ref. No.
A 1 B C NX-800 D E F G H I J K L M N O P PC BOARD Q R NX-800 PC BOARD TX-RX UNIT (X57-7390-10) (A/2) Foil side view (J79-0130-19 A/2) S 1 TX-RX UNIT (X57-7390-10) (A/2) Foil side view (J79-0130-19 A/2) 2 2 74 R411 C417 R404 R408 R409 I IC404 4 5 R801 R806 7 8 Q707 30 C794 S D G R804 C607 C606 C605 C604 C603 C602 R815 C601 C793 R809 C600 R812 G C599 D S Q706 C598 R813 C791 C610 C609 C608 C787 G C773 8 C611 R816 C770 IC709 C597 1 CN600 C765 C764 R779 R786
A 1 B C NX-800 D E F G H I J K L M N O PC BOARD P Q PC BOARD DISPLAY UNIT (X54-3640-10) Component side view (J79-0157-19) R S NX-800 1 DISPLAY UNIT (X54-3640-10) Component side view (J79-0157-19) 2 2 Ref. No. Address Ref. No.
NX-800 SCHEMATIC DIAGRAM The components marked with a dot (●) are parts of layer 1.
NX-800 NX-800 INTERCONNECTION DIAGRAM INTERCONNECTION DIAGRAM IC102 RA30H4452M123 1 4 80C TXI OPT6 RXEI TXO RXEO OPT7 OPT2 OPT11 DTI OPT8 50C OPT9 AO GN D AI GN D OPT5 DGND OPT1O NC OPT4 RD TD OPT3 1 ANT OPT1 1 CN595 IGN 2 GND 26 PIN BOARD TO BOARD CONNECTO R R152 CN403 CN705 1 SB SPI SPO CN901 CN597 30 PA 1 HO R GND GND GND GND RXD RXD TXD TXD EXT SP GN D 6 2 5C NC NC 50C SPO GND 1 GND GND GND GND GND GND GND GND AFO AFO GND GND
NX-800 NX-800 BLOCK DIAGRAM BLOCK DIAGRAM 150C 50C Q1 2SC5383-T111 DCin (13.6V) GND Q4 2SC5383-T111 Ripple FILTER Ripple FILTER CN401 CN402 IC1 LM73CIMKX-0 33C +B F401 F53-0328-05 DCDC Converter 50M IC405 XC6204B332P1 3.3V AVR 3.3V AVR SBC_2 DC SW DC SW Q412 2SA1955A-F 33A 1.5V AVR Q416 SSM6L05FU IC409 XC6205B152PRN 33A2 50MC DC SW Q405 2SA1955A-F 33M SBC_2 D408 1SS301F 1.5V AVR T/R SW BUFF Q11 SSM6L05FU Q12 2SJ347F IC4 LMC7101BIM5 VCTCXO 19.
NX-800 NX-800 LEVEL DIAGRAM Radio Frequency –118dBm –120.5dBm LEVEL DIAGRAM 58.05MHz –114.5dBm 450kHz –112.5dBm –121.5dBm –118.0dBm –104dBm –72.0dBm Audio Frequency –82.0dBm –82.0dBm 186mVrms 226mVrms 226mVrms 4.
