Jvc KD-G738-UF, KD-G737-EE, KD-G735-UT, KD-G735, KD-G731 Service Manual

SCHEMATIC DIAGRAMS

CD RECEIVER

KD-G731E,KD-G731EX,KD-G731EU

KD-G731EY,KD-G734UI,KD-G735U

KD-G735UN,KD-G735UH,KD-G735UT

KD-G737EE,KD-G738UF

CD-ROM No.SML200702

KD-G731
KD-G737

Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)

Contents

Block diagram
Standard schematic diagrams
Printed circuit boards

COPYRIGHT 2007 Victor Company of Japan, Limited.

2-1
2-2
2-6 to 7

No.MA306SCH

2007/2

Safety precaution

!

!

Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.

Please use enough caution not to see the beam directly or touch it in case of an
adjustment or operation check.

Block diagram

CD MECHA

LOAD

& FEED

MOTOR

SPINDLE

MOTOR

POSITION

SET

SWITCH

SW1
SW2

CD PICK UP

FOCUS+/­TRACKING+/-

FOCUS

&

TRACKING

COIL

FEED+/-

SPINDLE+/-

PSW

SW1
SW2

CN001

PICK UP

VF1, VF2
VT1, VT2
LD, MD

CD servo control section

VF1
VF2
VT1
VT2

CN501

MD
LD

FEED+/­SPINDLE+/­FOCUS+/­TRACKING+/-

PSW
SW1
SW2

IC401,X401

CLOCK GEN.

IC541

D.SERVO

& DSP

FMO
DMO
TRO
FOO

IC501

CD

DRIVER

1.5V VDD

1.5V SRAM VDD

LCD & Key control section

IC602

REMOCON

EN601

ENCODER

S601 to S614,S616,S617

KEY MATRIX

Q640,Q641,D601 to D618

D620,D621,D645,D646

LIGHTING DISPLAY

IC601

LCD DRIVER

COM1 to COM3
S1 to S52

LCD1

LCD

SCK

BCK
LRCK
DATA

RFOK
SRAMSTB

DBUS0 to 3
DBUCK
/DCCE
DREQ
/DRST

/RST

LM0
LM1

REMOCON

ENC1
ENC2

KEY0
KEY1
KEY2

DIMOUT

LCDCL
LCDDA
LCDCE

IC491

OUTL/R

24BIt

DAC

IC431

BUS

/DACMS
DACMC
DACMD

BUS0 to 3
BUCK
/CCE
REQ

SWITCH

CDON

IC461,Q481,Q482

1.5V REG.

IC581

CD L.P.F.

VDD5V

CN601

Main amplifier & System control section

IC71

RDS

DETECTOR

RDSDA
RDSCL

IC701

CPU

CD.L/R

DETACH SW

OPEN SW

D723,Q701
OPEN LED

D718,D722

Q976,Q977

CN701

X71

4.332MHz

USED FOR
KD-G731,KD-G737

X701

20MHz

X702

32.768kHz

IC702,S703

RESET

IC771

EPROM

S701

S702

LED

PS2

RESET

EEPROMCK
EEPROMDI

DETACH

OPEN

ILM.10V

PS2

KEY0 to 2
LCDCL
LCDDA
LCDCE
REMOCON
ENC1, ENC2
DIMOUT

USB section

IC642

SDRAM

XD0 to XD15
XA0 to XA11
XA13 to XA16
XA20, XA21
WE, SD_CS
SD_CLK
SD_CKE

IC641

FLASH ROM

XD0 to XD15
XA0 to XA19
OE, WE
NOR_CS
MODE0
RESET

IC651

24Bit DAC

MPX-OUT

TUSDA, TUSCL, SSTOP
Q-OUT, AFS, FSU

MUTE

VOLDA, VOLCK
VOLMUTE, SACLK

AMPKILL

DIMOUT

Q301

Q901,Q902

CONTROL

ANTCTRL

TELMUTE

TEL MUTE

DIMIN

SO, I/O, SI/SO
INT, SCK

USBTX, US
URST, MU

AOUTL+/­AOUTR+/-

MCLK,BCLK
DDATA,DAO
LRCK,DCLK
DACPDN
DACOCS

DIMMER

BRX

TE_CTL

12MHz

IC601

USB DECODER

DIMMER

ILM.ADJ

Q891

ILLUMINATION

Q881

INPUT

USB.L/R

IC652
L.P.F.

X602

TU1

FM/AM TUNER

TU.L/R

IC161

E.VOLUME

CH.L/R

USB.L/R

USB_5V

CN931

CN692

URST
USBTX
USBRX

MUTE_CTL

Q601

MUTECRTL

SUBMUTE

SUBWL/R

Q251,Q252,Q261

SUBWOOFER MUTING

OUTFL/R

Q321,Q341
Q331,Q351

LINE OUT MUTING

Q781,Q782

MUTE CONTROL

MUTE

OUTFL/R

STBY

SW5V,ACC5V,VDD5V
CD8V,3.3V,9V,ILM.10V

IC301

POWER AMP.

EACH BLOCK

ACC_IN

IC901

REGULATOR

ANT

EXT

MEMORY

D851

AUTO ANTENNA

USED FOR
KD-G734,KD-G735,KD-G738

IC801

JVC BUS

SWREG

IC931

USB5V REG.

MEMORY

IC681,IC682

LEVEL

CONVERTOR

UART_1TX
UART_1RX
RESET

FLAG

FL+/­FR+/­RL+/­RR+/-

ANT

SI/SO
BUSCK

STEERING

IC692

1.8V REG.

USB_5V

IC691

USB5V SW

J1
ANT

J321

SUB WOOFER
LINE OUT

FRONT
LINE OUT

REAR
LINE OUT

CN901

SPK
BATTERY

J801

CD CHANGER
CONTROL

CN702
STEERING REMOTE

USED FOR KD-G731

3.3V

1.8V

CN691

USBHDD+/-

USB

2-1