Kenwood NX-800 TX-RX UNIT (X57-7390-11)

NX-800

PARTS LIST

Ref. No. Parts No. Description

Address New

parts

Ref. No. Parts No. Description

Address New

parts Destination Destination

TX-RX UNIT (X57-7390-11)

39

Q101 2SC5108(Y)F TRANSISTOR

Q102 ∗2SC5455-A TRANSISTOR

Q105 DTC114EE DIGITAL TRANSISTOR

Q106 2SK1830F FET

Q201 DTA114EE DIGITAL TRANSISTOR

Q202 DTC144EE DIGITAL TRANSISTOR

Q203 2SC5636 TRANSISTOR

Q204,205 2SC3356(R23) TRANSISTOR

Q208 2SC5636 TRANSISTOR

Q210 2SC3357-A TRANSISTOR

Q212 EMD9 TRANSISTOR

Q401,402 DTC114EE DIGITAL TRANSISTOR

Q403 DTC114TE DIGITAL TRANSISTOR

Q404 2SJ645 FET

Q405 2SA1955A-F TRANSISTOR

Q406 UPA672T-A FET

Q407-409 12A02CH TRANSISTOR

Q410 SSM3K15TE(F) FET

Q411,412 2SA1955A-F TRANSISTOR

Q413-415 DTC114EE DIGITAL TRANSISTOR

Q416 SSM6L05FU-F FET

Q417 SSM5H01TU FET

Q501 UPA672T-A FET

Q701 SSM3K15TE(F) FET

Q702 2SC4617(Q) TRANSISTOR

Q703 SSM3K15TE(F) FET

Q704 2SC4738(GR)F TRANSISTOR

Q705 2SA1832(GR)F TRANSISTOR

Q706,707 2SJ243-A FET

Q708 2SA1832(GR)F TRANSISTOR

Q709 DTC114EE DIGITAL TRANSISTOR

Q710 DTC363EU DIGITAL TRANSISTOR

Q901,902 ∗QSX6 TRANSISTOR

TH101,102 ERTJ0EV104H THERMISTOR

TH701 ERTJ0EV104H THERMISTOR

Contents

Main UHF DIGITAL TRANSCEIVER NX-800 SERVICE MANUAL CONTENTS Document Copyrights Disclaimer GENERAL PERSONAL SAFETY PRE-INSTALLATION CONSIDERATIONS 1. UNPACKING 2. LICENSING REQUIREMENTS GENERAL SERVICE NOTE SYSTEM SET-UP 1. Modes 2. How to Enter Each Mode 3. Panel Test Mode 4. Panel Tuning Mode Fig. 1 6. Firmware Programming Mode 6-1. Preface 6-2. Connection procedure Note : 6-3. Programming 8. Firmware Version Information NX-800 1. Ignition Sense Cable (KCT-46 : Option) r y Fig. 2-4 2. Horn Alert/P.A. Relay Unit (KAP-2 : Option) q w e Fig. 2-1 Fig. 2-2 Fig. 2-3 3. Fig. 3-2 Install the KRK-10 main panel onto the transceiver w q 4. Voice Guide & Storage Unit (VGS-1 : Option) 4-1. Installing the VGS-1 unit in the transceiver Fig. 5-3 KAP-2 Cable (E37-1113-15) 6-pin Connector Fig. 5-2 5. External Speaker (Option) 5-1. KES-3 Connection Procedure 5-2. KES-5 or KES-6 Fig. 5-1 6. GPS Receiver Connection 6-1. Installing the GPS receiver Fig. 6-4 6-2. Fig. 6-5 Installing the GPS receiver together with the VGS-1 r 1. Precautions on Disassembly e r Top packing installation procedure w 2. Precautions on Reassembly Fig. 3 TX-RX PCB (TX-RX unit A/2) Reassembly w q Page 3. Receiver System 3-1. RF circuit Fig. 2 1. Overview Fig. 1 Frequency configuration 3-3. IF circuit 3-4. Audio amplifier circuit Fig. 4 3-5. Squelch Circuit Fig. 3 4. Transmitter System 4-1. Audio Band Circuit 4-2. Base Band Circuit Fig. 5 5. PLL Frequency Synthesizer 5-1. VCTCXO (X1) Fig. 7 5-2. VCO 5-3. PLL IC (IC3) 6. Control Circuit 6-1. CPU 6-2. Memory Circuit 6-3. Display Unit 6-4. Key Detection Circuit 8. Signaling Circuit Fig. 8 8-1. Encode (QT/DQT/DTMF/MSK/2TONE) 8-2. Decode (QT/DQT/DTMF/2TONE/MSK) 9. Compander Circuit TX-RX unit (X57-7390-10) : NX-800 Display unit (X54-3640-10) Page Page CAPACITORS CC 45 TH 1H J220 12346 5 1 C RESISTORS NX-800 NX-800 (Y51-5150-XX) DISPLAY UNIT (X54-3640-10) DISPLAY UNIT (X54-3640-10) TX-RX UNIT (X57-7390-11 for service) DISPLAY UNIT (X54-3640-10) Page Page Page Page Page Page Page Page Page TX-RX UNIT (X57-7390-11) EXPLODED VIEW PACKING CD Parts with the exploded numbers larger than 700 are not supplied. 1 2 TROUBLE SHOOTING Fault diagnosis of the BGA (Ball Grid Array) IC TROUBLE SHOOTING Controls KMC-36 Temperature [PTT] Panel Test Mode Panel Tuning Mode Preparations for tuning the transceiver Transceiver tuning (To enter tuning mode) LCD display in panel tuning mode An CNTR 256 5 reference level adjustments frequency Key operation Adjustment item and Display Page Panel tuning mode flow chart Test Equipment Required for Alignment MIC connector (Front panel view) Test cable for microphone input (E30-3360-08) Tuning cable (E30-3383-05) Radio Check Section Common Section Transmitter Section Page Page Page Page Receiver Section Mode, Signaling, Necessary adjustment and order Page Page Page Page Display unit (X54-3640-10) TX-RX unit (X57-7390-10) (A/2) TX-RX unit (X57-7390-10) (B/2) Solder Land Page Page CN595 26-pin connector specification Page D-sub 25-pin connector specification Page PC BOARD NX-800 TX-RX UNIT (X57-7390-10) (B/2) Component side view (J79-0130-19 B/2) TX-RX UNIT (X57-7390-10) (B/2) Foil side view (J79-0130-19 B/2) JIHGFEDCBA JKLMNOPQRS TX-RX UNIT (X57-7390-10) (A/2) Page JKLMNOPQRS JIHGFEDCBA DISPLAY UNIT (X54-3640-10) Foil side view (J79-0157-19) TX-RX UNIT (X57-7390-10) ABCDE 1 2 X57-739 1/16 3 4 FGHIJ X57-739 2/16 NX-800 X57-739 3/16 KLMNO X57-739 4/16 PQRST X57-739 5/16 UVWXY X57-739 6/16 ZAA AB AC AD X57-739 7/16 AE AF AG AH AI X57-739 8/16 AJ AK AL AM AN X57-739 9/16 AO AP AQ AR AS X57-739 10/16 AT AU AV AW AX X57-739 11/16 AY AZ BA BB BC X57-739 12/16 BD BE BF BG BH X57-739 13/16 BI BJ BK BL BM TX-RX UNIT (X57-7390-10) X57-739 14/16 BN BO BP BQ BR C611 GND1 GND2 OUT BS BT BU BV BW TX-RX UNIT (X57-7390-10) DISPLAY UNIT (X54-3640-10) X57-739 16/16, X54-364 1/3 BX BY BZ CA CB Note : The components marked with a dot () are parts of layer 1. X54-364 2/3 CC CD CE CF CG DISPLAY UNIT (X54-3640-10) LCD CLCKCJCICH 1 Note : The components marked with a dot () are parts of layer 1. DISPLAY UNIT (X54-3640-10) 2 3 4 INTERCONNECTION DIAGRAM CN901 LCD X54-364*-** DISPLAY UNIT CN905 INTERCONNECTION DIAGRAM RA30H4452M123 X57-739*-** CN549 B/2 Page BLOCK DIAGRAM Ripple TEMP MCF LNA LEVEL DIAGRAM Receiver Section Transmitter Section LEVEL DIAGRAM 4 SPECIFICATIONS GENERAL RECEIVER TRANSMITTER PC BOARD NX-800 TX-RX UNIT (X57-7390-10) (B/2) Component side view (J79-0130-19 B/2) TX-RX UNIT (X57-7390-10) (B/2) Foil side view (J79-0130-19 B/2) JKLMNOPQRSIHGFEDCBA 72 73 JKLMNOPQRSIHGFEDCBA 74 75 76 77 Note : The components marked with a dot () are parts of layer 1. TX-RX UNIT (X57-7390-10) DISPLAY UNIT (X54-3640-10) TX-RX UNIT (X57-7390-10) D-SUB25 INTERCONNECTION DIAGRAMINTERCONNECTION DIAGRAM RA30H4452M123 LCD CN549 LA4425A BLOCK DIAGRAMBLOCK DIAGRAM Ripple TEMP SW CD IC510 LEVEL DIAGRAMLEVEL DIAGRAM 4