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

KD-G440

KD-S45 KD-G499

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

Contents

Block diagram	2-1
Standard schematic diagrams	2-3
Printed circuit boards	2-9 to 11

COPYRIGHT 2008 Victor Company of Japan, Limited.

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.

< M E M O >

Block diagram

CD MECHA

CD servo control section

Main amplifier & Sys

VF1

OUTL/R

IC581

CD-USB.L/R

LOAD & FEED

FEED+/-

VF2

CD L.P.F.

VT1

IRQ

MOTOR

VT2

NPWDOWN

MD

IC521

NRST

LD

Q521

STAT

PSW

POSITION

RF AMP

MLD

SET SWITCH

X521

MDATA

MCLK

16.9344MHz

SPINDLE

SP+/-

CN501

X701

MOTOR

FOP

8MHz

TRP

SW1

SP+/-

TRVP

X702

FEED+/-

SPOUT

32.768kH

SW2

FOCUS+/-

LM

SW1,SW2

TRK+/-

IC501,Q501

MSW

BTL DRIVER

PSW

SW1, SW2

E2

E2

SRAMVDD

IC771

E2

IC981

VDD5V

CD-NRST

EPROM

CN001

1.5V REG.

CD-STAT

CD PICK UP

CD-MLD

RS

I2C-DATA

IC702,S701

VF1, VF2

CD-DATA

I2C-REQ

RESET

VT1, VT2

CD-MCLK

I2C-CLK

MD, LD

Q976,Q977

PS

PICK UP

USB_CON

IC401

USB-RST

PS2

USB-DET

TRK+/-

USB

FOCUS & TRACKING

FOCUS+/-

X401

DECODER

COIL

USBD+/-

14.31818MHZ

J602

D+/-

LCD , AUX/USB Jack & Key control section

USB

USB5V

M

USB5V

LCDDA

IC931,IC941

LCD1

COM1 to 4

IC661

LCDCE

USB5V REG.

S1 to 50

LCDCL

LCD MODULE

LCD DRIVER

IC681

REMOCON

KEY2

REMOCON

Used for

LCDDA

KD-G440, KD-G441, KD-G447

LCDCE

KD-G644, KD-G645, KD-G646, KD-G648

LCDCL

CN701

REMOCON

VOL1

CJ601

VOL1

JS686

VOL2

VOL2

ENCODER

KEY0

KEY0

KEY1

KEY1

S601 to S619

KEY2

KEY MATRIX

D630

ACC5V

POWER LED

D631 to D654

ILM.10V

J601

AUX.L/R

LIGHTING DISPLAY

INPUT

AUX

2-1

System control section	Used for
	KD-G351, KD-G357
	KD-G441, KD-G447

		RDSDA
		RDSCL	IC71	X71
			RDS DETECTOR	4.332MHz
			MPXOUT
	TUSDA
	TUSCL		IC1						J1
		FM/AM TUNER							ANT
			TU.L/R	Used for
		X1
01				KD-G440, KD-G441
		4MHz
Hz				KD-G644, KD-G645, KD-G646, KD-G648
	SUB-MUTE					REAR/
02				Q331,Q785					REAR &
			SUBL.RL			SUBWOOFER L/R
8kHz				REAR/SUBW					SUBWOOFER
			SUBR.RR
				LINE OUT MUTING					LINE OUT
				Used for				J321
				KD-G644, KD-G645
				KD-G646, KD-G648
E2PROM_DI
E2PROM_DO					Q321	FRONT L/R			FRONT
E2PROM_CLK			Q781		FRONT
	MUTE								LINE OUT
			Q782	LINE OUT MUTING
			MUTE
RST			CONTROL		MUTE
PS2		CD-USB.L/R
	VOL_SDA			LFOUT			FL+/-
				RFOUT	IC301		FR+/-
IC701	VOL_CLK
			IC161				RL+/-
				LROUT
		E.VOLUME			POWER AMP. RR+/-
				RROUT
CPU
			AUX.L/R	POWER
MEMORY				3.3V,SW5V,ACC5V
				VDD5V,CD8V,9V,ILM.10V
.
				EACH BLOCK
						ACC.IN
	DIMOUT	Q882,Q883 ILM.ADJ				EXT
		DIMMER			IC901	MEMORY		CN901	SPK
	ANT	CONTROL
				REGULATOR
	CD_ON								BATTERY
					ANT
					D851	ANT
				AUTO ANTENNA
			DIMIN		Q881	ILLUMINATION
				DIMMER INPUT
			Used for KD-G644, KD-G645, KD-G646, KD-G648
			TELMUTE		Q891	TELMUTE
				TELMUTE
			Used for KD-G351, KD-G357, KD-G441, KD-G447
						STEERING		CN703	STEERING
									REMOTE
					Used for KD-G440,KD-G441
									2-2