Kenwood NX-800 AO AP AQ AR AS

NX-800 SCHEMATIC DIAGRAM

1.48V

3.31V

3.29V

L508

C541

10u6.3

C542

R692 100k

THP

VAGC

RSSI

ASSIST

ASQAPC

1k

R610

R605

R607

BSCAN0

BSCAN1

FCDADC

TEST0

TEST2

TEST3

SQDAC

TEST1

IFADCP

IFADCN

/DRST

R691 100k

/FRST

100k

R701D

1k

R606 10k

0

R608 1k

R845

L15

R17

G18

L17

N16

RSTo

R10

R12

R11

T13

U14

U13

H17

E16

P18

TDI

TMS

TDo

TCK

TRST

RTCK

RST

E2

D1

E3

IFVR

V3

C2

F1

F2

E1

G2

G1

D2

IFR

ADC0

BooT

ADC2

DAC0

ADC3

AGND9

AGND8

AGND7

AGND6

AVCC5

AVCC4

NC36

AVCC2

AGND5

AGND4

AGND3

AVCC10

AGND2

NC34

AVCC9

AVCC8

NC35

AVCC6

DGND4

DGND6

DGND5

DGND7

DGND12

DGND15

DGND14

DGND13

DGND11

DGND10

AVCC1

DGND8

DGND9

H5

E6

L1

K5

J5

C540

0.1u

0.1u

C537

C538

0.01u

C539

D3

G4

F4

V16

E4

1u

G5

F5

E5

U3

M1

L3

K4

T3

H4

J14

K14

U16

C17

T2

C4

A5

B3

P7

P8

P12

P13

R603

0

PSRRF RXC

R3

68k

R706

0.1u

R614

100p

C544

D

AGCDAC

470k

D

/SCSW

D9

MCSCKCNMCCK1

MCo0 D11

A8

MCCK0

MCI0

B9

MCCS0 B10

MCDOAF

MCDIAF

MCSCKAF

/MCCSAF

C9

B8

A7

MCo1

MCI1

B7

MCCX1

MCCR1

MCDOCN

MCDICN

/MCCSXCN

R629

/MCCSRCN

D

1M

R627 100k

R628 100k

/DWUP

R684

VFRM

MCo2 D10

C8

MCCS2

MCCK2 R617 1k

C7

VoINT D7 R616 0 /DINT

D

N1

D8

RSSIT R615 0

M3

PSRIF

PSRPLL

M2

PLD

GPIo2

R624

R625

R676

R2

R1 R623 100k

N2

P1

L4

RXRVE

RXSLT

N3

PSTPLL

PSTIF

P2

M4

TMoD

PSTPA

P3

TRAMP

TXRVE

/PRST

/T_R

MM2

MM

W_/V

TXC

D12 R619 1k

R6

R5

FSDET

SYMTIM R621 0

C12

SIMDT

SIMCK

R620 1k

/PSW

0.01u

C621

D

/SYMTIM

FSDET

GPIo0

C11

SIMRST

V9

T9

GPIo1

R618 1k /INT25P

/BINT

/IGN

/OVRB

B6

R7

U9

V10

GPIo3 R682 0

R683 0

T7

GPIo4 R622 0

GPIo5

U8

R8

GPIo7

GPIo6 R681 0

A6

GPIo8 R680 0

GPIo9

470k

R677

D

/INAMT

DVDD3

DVDD1 B5

C6

GPIo11

GPIo10

E8

DVDD2 L511

E9

DVDD5

G14

F14

DVDD4 C560 1u

N14

M14

DVDD6 C558 0.1u

C559 0.01u

SBC

/H_L

DVDD10

P9

P10

DVDD8

DVDD7

N5

DVDD9 C556 0.1u

C557 0.1u

C555 0.1u

DVDIo2 E7

M5

DVDIo1

E13

DVDIo3 C552 1u

H14

C554 0.1u

C551 0.01u

DVDIo7

P11

L14

DVDIo5

DVDIo4

P6

DVDIo6 C548 0.1u

C549 0.1u

C550 0.1u

DGND2 E10

L5

DGND1

E11

DGND3 E12

C547 0.1u

RST

R604

1k

R602

1k

1k

100k

100k

100k

100k

ASQDET

33A

33M

15M

33M

33A_2

33M_4

BSHIFT

PLD

450K

15M

33M

33A-2

X2_CLKIN

HD2HD2

X2_CLKIN

ASQDET

SCBSY

D

D

L903

DSW

C814

470p

RFAGC

+

1 11

1

1

2 22

2

2

2

6 6

6

6

9 99

9

9

5

X57-739 9/16

AO AP AQ AR AS

TX-RX UNIT (X57-7390-10)

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