Page 1
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
Page 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.
Page 3
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
Page 4
Standard schematic diagrams
Main amplifier section
2-2
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
SHEET 1
Page 5
CD servo control section
SHEET 2
2-3
Page 6
LCD & key control section
QLD0298-001
R605
R606
1.2K
1.5K
R612
R611 R610 R609
1.5K
1.2K 910 680
S614 S613 S612 S611 S610 S609 S608
R602R603R604
R601
680
560680910
S602
S603
S604S605S606S607
560
R614
560
R607R608
680
R613
680
S601
S615S616S617
LCD1
KEY2
KEY1
KEY0
S1S2S3S4S5S6S7S8S9
COM1
COM2
COM3
R645
R644
IC602
RPM7338-V4
0.012
10K
R691
D643
C611
MA8062/M/-X
S47
S48
S51
S50
S49
390
R660
R661
D646
D645
NSPW310BS/B2RS/
S52
390
NSPW310BS/B2RS/
820
R631
D631
SML-310LT/MN/-X
R672
470
R671
470
Q640
2SB624/4/-X
R674
Q641
UN2211-X
S47
S48
S50
R657
51k
S51
S52
COM1
COM2
COM3
VDD
INH
OSC
CE
CLK
DATA
2.2k
R652
R651
2.2k
R653
10k
R673
R675
47k
1.2K
1k
Q642
UN2211-X
MA111-X
C603
10/6.3
R658
180k
D642
D641
UDZS5.1B-X
C601
0.022
LCDCE
LCDSCK
LCDSO
R654
R655
R656
10k
10k
10k
C602
680p
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S33
S34
S35
S36
S37
S38
S39
S40
S41
S42
S43
S44
S45
S46
820
R648
R649
R647
D602D601
R646
D603
D604
D605
R643
R642
D606
D607
270
430
R641
R640
D608
D609
D610
R639
R638
D612
D613
270
820
430
270
270
R637
R636
D614D611
D615
R635
R634
D616
D617
D618
R633
R632
D620
D621
D619
270
470
R692
C612
4.7/6.3
S41
S42
S43
S44
S45
S46
IC601
LC75823W
S3S4S5S6S7S8S9
S40
S38
S39
S10S2S11S1S12
C682
S35
S36
S37
S13
S14
EN601
QSW0793-001
R682
47K
47K
R683
100
R681
C681
0.022
0.022
CN601
NNZ0087-001
REMOCON
ACC5V
10V
ENC1
ENC2
LCDCE
LCDSO
LCDSCK
KEY2
KEY1
KEY0
R670
0
DIM
S33
S34
S32S49
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S15
S16
GND
2-4
DIMMER
SHEET 3
Page 7
Printed circuit boards
Main board
Forward side
S702
C504
IC301
C513
C508
C319
R516
B901
R569
R515
C501
R570
C569
C502
C520
C519
CN701
C901
R565
R510
C518
C309
R566
C542
B501
C516
R507
R567
R568
Q501
R590
R509
C517
R303
C302
C541
C567
R508
R177
R571
C565
IC501
C311
R572
R575
R167
C515
R576 R577
C320
R176
CN501
C995
C310
C301
C524
C523
C521
C529
C994
R166
IC561
CN901
D301
C996
R302
B903
Q301
C522
R513
R514
L521
C993
C178
C537
R589
C168
C242
L501
R525
C571
R911
C992
R301
C997
R529
C243
C572
C538
D904
R902
R248
C570
C991
C539
R530
D905
C998
C169
C573
R526
R531
L522
R527
L901
Q561
R532
Q241
C244
R536
C179
D241
R524
C916
R244 R245
R259
C566
R246
D243
D561
C533
IC521
C535
C167
R528
R164
R175
C176
C568
C584
R165
C583
X521
C177
D901
C904
R912
C914
R174
C166
C881
C582
C525
R710
R708
C245
C534
R533
IC161
C595
R523
R535
R882
Q881
C191
IC581
R522
C528
C592
R521
C530
C192
R537
C918
C911
R709
R722
R751
C531
C174
C164
IC901
C882
C198
C593
D704
R771
D721
R790
B904
R586
D705
C594
D722
C905
C913
D702
D723
C912
D703
C715
C188
R596
D701
Q782
C909
R767
R883
R704
L701
R703
D786
R908
C193
R758
IC701
J801
C908
C194
R706
C701
R705
C903
R802
R757
C784
R756
R804
R803
R805
C713
C917
C915
C189
D706
C802
X701
IC801
C199
R741
R916
R915
Q905
Q904
R335
C781
C702
R917
Q331
C919
C31
R809
D331
R810
R325
R808
S703
D321
Q321
C705
C33
CJ321
Q341
Q351
R345
R355
D341
D351
C3
C15
C2
C9
C7
C83
C93
R801
R806
C10
L1
R807
CJ1
TU1
S701
2-5
Page 8
Main board
Reverse side
C91
C81
R4
R2
D6
R16
R5
R6
C11
CJ1
C332
C342
Q2
Q1
S701
C5
R1
C6
CJ321
C341
R342
R341
TU1
C13
C12
L901
C331
R332
J801
C321
R322
R321
Q31
D5
R9
R10
R723
R711
S703
C705
Q32
C31
C199
R754
C917
R35
C781
R755
R331
R753
R15
C782
C706
R752
C801
C189
C783
X701
C704
Q781
C784
D783
D3
R11
C703
Q5
R919
R740
C908
R781
R739
R12
Q4
D244
D245
R736
C903
D4
C162
C161
R161
R14
C163
C701
R726
R738
C194
R737
R163
R162
R735
Q902
R702
R701
C907
R907
L701
C165
R734
R918
C193
C906
R914
IC901
C909
Q903
C188
R763
R905
R906
R762
R764
R761
R728
C905
D903
C912
R721
R720
C910
C198
C594
R593
R592
R595
C592
C591
R591
R727
C913
R725
R594
R724
R717
R716
R718
R583
R582
R585
C582
C581
R581
C911
R760
C918
R759
C351
R352
R351
R34
C32
D2
D1
L1
R32
C3
C4
C14
C1
C9
C8
R7
R8
Q3
C716
R31
C10
C15
C2
C83
C93
R719
R715
R768
C33
R33
R3
Q6
R13
C7
R81
R82
C82
R91
C92
R92
R733
R730
R729
R732
R731
R769
D708
C599
R584
R171
C245
R712
R707
R714
R713
C171
C172
C904
C173
R172
R173
C595
C191
C534
C881
C714
C902
C584
C175
B506
R901
C177
R538
X521
C176
C167
C568
R881
D901
C166
C533
C536
R249
C169
R534
C916
C244
C246
R247
C532
D561
C562
C566
Q561
R579
R903
C179
R580
L522
C526
C527
R902
C168
D242
C305
C178
R243
C242
C561
C563
L501
ARF
L521
C509
C306
FE
B505
TE
C540
R512
C310
C307
CN501
R506
C506
VREF
R511
C308
C301
C564
RF
C507
C514
C529
C320
R502
R501
CN901
C302
R517
D720
D719
R578
R573
C505
C504
D718
R574
R562
C515
D717
C309
D716
C312
R505
D715
C311
C567
R504
CN701
C901
C315
D714
C313
Q501
C510
C512
D713
C511
C314
D712
C319
C711
IC301
C712
C304
C303
R503
C503
C502
D711
S702
2-6
Page 9
Front board
R601
R602
Forward side
S601
R603
S602
D608
IC602
S603
LCD1
D609
S608
S604
D610
R604
S605
D611
S606
D612
S609
D613
D607
D606
D615
EN601
S617
D603
D604
D605
S615
R613
D614
R614
S616
D631
D619
Reverse side
R661
R612
R660
R611
R610
R609
R670
R606
R605 R607 R608
R638
C601
R639
D641
D642
R658
C603
R653
C602
R657
D646
R648
R649
R645
R644
R671
R672
Q640
R673
R674
Q641
R635
R634
R636
R637
R632
R633
R643
R642
D645
R654
IC601
R655 R656
S607
S610 S611
S612
D601 D602
D620
D621
D646
S613
D618
S614
D645
D617
D616
CN601
R631
IC602
C612
D643
C611
R651
R691 R692
R652
R641
R683
R640
R682
R647
C681
R646
EN601
C682
R681
2-7
Page 10
Victor Company of Japan, Limited
AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.MA097SCH)
Printed in Japan
WPC
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