JVC KD-G308 Schematics

SCHEMATIC DIAGRAMS

CD RECEIVER

KD-G308

CD-ROM No.SML200406

Area suffix

UF -------------------------- China

Contents

Block diagram
Standard schematic diagrams
Printed circuit boards

2-1
2-2
2-5 to 7

COPYRIGHT 2004 Victor Company of Japan, Limited.

No.MA097SCH

2004/6

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.

T

Block diagram

Main amplifier section

PICK UP

FOCUS &

TRACKING

COIL

LOAD&FEED

MOTOR

POSITION SET

SWITCH

SPINDLE

MOTOR

SW1, SW2

VF1, VF2, VT1, VT2, LD, MD

TRACKING+, TRACKING­FOCUS+, FOCUS-

CN001

PSW

FEED+
FEED-

SPINDLE+
SPINDLE-

SW1, SW2

CD servo control section

TRV, TVD

IC561

BTL

DRIVER

CN501

ECM, ECS
FOD

SPINDLE+, SPINDLE­FEED+, FEED­TRACKING+, TRACKING­FOCUS+, FOCUS-

SW1, SW2, PSW

VF1, VF2
VT1, VT2
MD, LD

IC521

DSP&DAC

FBAL, TBAL
FE, TE, RFENV
VDET, OFTR
RFDET, BDO
LDON, ARF

IC501

RF AMP

CJ1

ANT

LM, MSW

CD.RESET, STATUS
SUBQ, SQCK, TLOCK
FLOCK, CD.SENSE
MLD, MDATA, MCLK

OUTL
OUTR

IC701

CPU

TU1

FM/AM

TUNER

SD/ST
MONO
S.METER
IFC-CONT
FM/AM
SEEK/STOP
FM.OSC
EO
IFC

SDA
SCL

L-CH
R-CH

E.VOLUME

RLO, RRO

OUTLF, OUTLR
OUTRF, OUTRR

IC161

REGULATOR

EACH BLOCK

IC901

IC301

POWER

AMP.

LEFT FRONT (+)
LEFT FRONT (-)
RIGHT FRONT (+)
RIGHT FRONT (-)
LEFT REAR (+)
LEFT REAR (-)
RIGHT REAR (+)
RIGHT REAR (-)

CN901

CJ321
LINE OU

LCD & Key control section

IC602

REMOCON

IC601

LCD DRIVER

COM1
COM2
COM3
S1 to S52

LCD1

LCD DISPLAY

REMOCON

LCD.SCK
LCD.SO
LCD.CE

S601 to S617
KEY MATRIC

KEY0
KEY1
KEY2

ENC1
ENC2

EN601

ENCODER

CJ601

CN701

KEY0
KEY1
KEY2
LCD.SCK
LCD.SO
LCD.CE
REMOCON
ENC1
ENC2

IC581

CD L.P.F.

CD.LCH
CD.RCH

JBUS.SI

JBUS.SI
JBUS.SO
JBUS.IO
JBUS.INT
JBUS.SCK SCK

IC801

JVC BUS

CH.L
CH.R

SPK

BATTERY

J801

CD CHANGER

CONTROL

2-1