Jvc KD-G449-UR, KD-G645-TUH, KD-G442-EX, KD-G442-E, KD-G442-EY Service Manual

SCHEMATIC DIAGRAMS

CD RECEIVER

KD-G351E,KD-G351EX,KD-G351EY,KD-G351EU

KD-G357EE,KD-G440J,KD-G441E,KD-G441EX

KD-G441EY,KD-G441EU,KD-G447EE,KD-G644UI

KD-G645U,KD-G645UN,KD-G645UT,KD-G645UH
KD-G646U,KD-G646UN,KD-G646UT,KD-G646UH

KD-G648UF,KD-G352EY,KD-S45J,KD-G645SUI

KD-G442E,KD-G442EX,KD-G442EY,KD-G499UR

KD-G357EE2,KD-G645TUH

DVD-ROM No.SML2008Q3

except
KD-G441
KD-G351
KD-G447
KD-G357

KD-S45

KD-G645

KD-G442

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)

KD-G440

KD-S45

KD-G499

KD-G441
KD-G351
KD-G447
KD-G357
KD-G352

KD-G442

Contents

Block diagram
Standard schematic diagrams
Printed circuit boards

COPYRIGHT 2008 Victor Company of Japan, Limited.

2-1
2-3
2-9 to 11

No.MA377SCH<Rev.004>

2008/10

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.

< MEMO >

Block diagram

s

S

S

H

E

CD MECHA

LOAD & FEED

MOTOR

POSITION

SET SWITCH

SPINDLE

MOTOR

SW1,SW2

CD PICK UP

PICK UP

FOCUS & TRACKING

FEED+/-

PSW

SP+/-

SW1
SW2

VF1, VF2
VT1, VT2
MD, LD

COIL

CN001

TRK+/­FOCUS+/-

CD servo control section

VF1
VF2
VT1
VT2
MD
LD

X521

16.9344MHz

CN501

SP+/­FEED+/­FOCUS+/­TRK+/-

PSW

SW1, SW2

SRAMVDD

IC521

Q521

RF AMP

IC501,Q501

BTL DRIVER

IC981

1.5V REG.

14.31818MHZ

OUTL/R CD-USB.L/R

IC581

CD L.P.F.

IRQ
NPWDOWN

NRST
STAT
MLD
MDATA
MCLK

FOP
TRP
TRVP
SPOUT

LM
MSW

VDD5V

CD-NRST
CD-STAT
CD-MLD
CD-DATA
CD-MCLK

IC401

USB

X401

DECODER

I2C-DATA
I2C-REQ
I2C-CLK
USB_CON
USB-RST
USB-DET

USBD+/-

Main amplifier & Sy

X701

8MHz

X702

32.768k

IC771

EPROM

IC702,S701

RESET

Q976,Q977

PS2

E2
E2
E2

R

P

USB

AUX
INPUT

J601J602

LCD , AUX/USB Jack & Key control section

D+/-

USB5V

LCD1

COM1 to 4
S1 to 50

LCD MODULE

IC681

REMOCON

JS686

REMOCON

Used for
KD-G440, KD-G441, KD-G447
KD-G644, KD-G645, KD-G646, KD-G648

VOL1
VOL2

ENCODER

KEY0
KEY1

S601 to S619

KEY2

KEY MATRIX

AUX.L/R

D630

POWER LED

D631 to D654

LIGHTING DISPLAY

ACC5V

ILM.10V

IC661

LCD DRIVER

LCDDA
LCDCE
LCDCL

USB5V M

KEY2

LCDDA
LCDCE
LCDCL
REMOCON

CN701

CJ601

VOL1
VOL2
KEY0
KEY1

IC931,IC941

USB5V REG.

2-1

ystem control section

1

z

2

8kHz

E2PROM_DI
E2PROM_DO
E2PROM_CLK

RST

TUSDA
TUSCL

SUB-MUTE

MUTE

Used for
KD-G351, KD-G357
KD-G441, KD-G447

RDSDA
RDSCL

RDS DETECTOR

FM/AM TUNER

TU.L/R

X1

4MHz

IC1

IC71

MPXOUT

SUBL.RL
SUBR.RR

Q781
Q782
MUTE

CONTROL

X71

4.332MHz

Used for
KD-G440, KD-G441
KD-G644, KD-G645, KD-G646, KD-G648

Q331,Q785

REAR/SUBW

REAR/
SUBWOOFER L/R

LINE OUT MUTING

Used for
KD-G644, KD-G645
KD-G646, KD-G648

Q321

FRONT

FRONT L/R

LINE OUT MUTING

MUTE

J1
ANT

REAR &
SUBWOOFER
LINE OUT

FRONT
LINE OUT

PS2

MEMORY

.

IC701

CPU

VOL_SDA
VOL_CLK

DIMOUT

ANT
CD_ON

CD-USB.L/R

Q882,Q883

DIMMER

CONTROL

IC161

E.VOLUME

ILM.ADJ

LFOUT

AUX.L/R

RFOUT

LROUT
RROUT

POWER

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

IC301

POWER AMP.

EACH BLOCK

ACC.IN
EXT

IC901

MEMORY

REGULATOR

ANT

D851

AUTO ANTENNA

DIMIN

Q881

DIMMER INPUT

Used for KD-G644, KD-G645, KD-G646, KD-G648

TELMUTE

Q891

TELMUTE

Used for KD-G351, KD-G357, KD-G441, KD-G447

ANT

ILLUMINATION

TELMUTE

FL+/­FR+/­RL+/­RR+/-

CN901J321

SPK
BATTERY

STEERING

Used for KD-G440,KD-G441

CN703

STEERING
REMOTE

2-2