JVC KD-G401 Service Manual
SCHEMATIC DIAGRAMS
CD RECEIVER
KD-G401
CD-ROM No.SML200401
Area suffix
E ----------- Continental Europe
EX --------------- Central Europe
1
40
G
-
D
K
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards
2-1
2-2
2-5 to 7
COPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LTD.
No.MA051SCH
2004/1
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
POSITION SET
SWITCH
LOAD&FEED
MOTOR
SPINDLE
MOTOR
SW1, SW2
PICK UP
LCD & Key control section
S601 to S618
KEY MATRIX
DIMOUT
D630 to D653
LIGHTING
DISPLAY
&
DIMMER
CONTROL
Main amplifier & CD servo control section
J1
ANT
PSW
FEED+
FEED-
SPINDLE+
SPINDLE-
SW1, SW2
VF1,VF2
VT1,VT2
LD,MD
VREF
TRACKING+
TRACKINGFOCUS+
FOCUS-
KEY0 to KEY2 REMOCON
LCD1
CN501
IC681
REMOCON
COM1
COM2
COM3
S1 to S52
SPINDLE+
SPINDLEFEED+
FEEDTRACKING+
TRACKINGFOCUS+
FOCUSVREF
VF1,VF2
VT1,VT2
MD,LD,VREF
JS686
ENCODER
LCDDA
LCDCL
LCDCE
IC661
LCD
DRIVER
TU1
FM/AM
TUNER
ENC1
ENC2
FM/AM,SEEK/STOP,SD/ST
SQ ,MONO,SM,AFCK
LM0,LM1,RST
IC501
CD
DRIVER
CJ601
CN701
DMO,FMO
TRO,FOO
RFGC
RF,FE,TE
RFRP
RFDC
SEL
TEB
IC521
RF AMP
CDRW
SDI
IC401
MP3/WMA
INT. SRAM
REMOCON,ENC1,ENC2
DIMOUT,KEY0 to KEY2
LCDDA,LCDCL,LCDCE
VREF
IC541
DSP
LRCK
BCK
LRCK
BCK
SDO
&
MP3STBY,MP3CLK
MP3DOUT,MP3REQ
MP3DIN,MP3RESET
SW1,SW2,PSW
RST
BUS0 to BUS3
BUCK,CCE
DAC-CDTI,DAC-CCLK
DAC-CSN,DAC-PDN
IC481
DAC
SDA
IC771
SCL
EPROM
AOUTL+,AOUTLAOUTR+,AOUTR-
IC701
CPU
RDSDA
RDSCL
DETECTOR
VOLDA
VOLCL
PLLDA
PLLDI
PLLCL
PLLCE
IC581
CD L.P.F.
IC71
RDS
IC31
PLL
TU.L
TU.R
IC161
E.VOL
CD.L
CD.R
LEFT.REAR
RIGHT.REAR
LEFT.FRONT
RIGHT.FRONT
LEFT.REAR
RIGHT.REAR
IC901
REGULATOR
EACH BLOCK
CJ321
LINE OUT
IC301
POWER
AMP
FL+,FLFR+,FRRL+,RLRR+,RR-
CN901
SPK
BATTERY
2-1
Standard schematic diagrams
Main amplifier section
TU1
QAU0313-001
L1
4.7u
C8
C33
D707
D708
D709
1SS355-X
1SS355-X
D2
D1
C38
0.001
C37
10P
10/16
C40
0.01
0.047
C42
C41
C46
C47
R43
470
C32
C48
0.047
47P
Q31
UN2211-X
D711
D710
22/16
220/10
0.047
0.01
C9
C1
C2
C6
C39
1000P
R38
100
0
R39
2SB624/4/-X
Q6
R7
4.7k
10k
39k
0.047
0.0027
R40
R41
FM/AM
C43
C45
C44
0.01
0.01
0.01
10
220
C716
SD/ST
R42
C49
0.001
SQ
R44
C50
100P
100/10
R31
C31
10
Q10
UN2211-X
C717
0.1
0.1
10K
22/16
AM.VCC
C3
R11
R6
47k
Q7
UN2211-X
15k
R57
470
R58
C55
0.47/50
Q52
2SD601A/QR/-X
IFC-CONT
R10
10K
C10
0.047
10k
R56
47
220/10
R9
C4
D4
1SS355-X
R4
3.3k
C54
0.1
C53
0.0047
2SD601A/QR/-X
SEEK/STOP
(SHEET 2)
To CJ601
(SHEET 3)
9V
CD.R
A-GND
CD.L
PSW
SW1
SW2
LM0
LM1
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
RST
8V
GND
MP3REQ
MP3RESET
MP3STBY
MP3DIN
MP3DOUT
MP3CLK
DAC-CDTI
DAC-CCLK
DAC-CSN
DAC-PDN
CDON
CDRW
SW5V
VDD5V
DETACH
10V
ACC5V
REMOCON
ENC1
ENC2
LCDCL
LCDDA
LCDCE
KEY0
KEY1
KEY2
CN701
VMC0334-001
NRZ0065-222X
PLLCE
PLLDA
PLLCL
PLLDI
D701
RA30
J1
R793
0
QNB0100-002
C36
7P
X31
QAX0616-001Z
IC31
TB2118F-X
C35
10P
10k
R33
R32
6.2k
C34
0.047
47/6.3
C993
0.01
D703
D705
D702
D704
D706
0.012
C94
10k
R54
R55
Q51
0.001
C95
D5
2.2k
0.012
C84
R5
47k
1SS355-X
R53
47k
C52
0.01
R52
47k
0.001
C85
Q5
2SB709A/R/-X
SEEK/STOP
Q53
UN2211-X
R59
47k
27k
330P
C51
R51
DIMIN
DIMOUT
VOLDA
VOLCL
BUCK
CCE
RST
BUS1
BUS2
BUS3
CDRW
Q1
R2
47k
10
R1
SM
0.047
R761
R762
R760
R759
R716
R715
R703
R714
RA701
NRZ0065-102X
R704
R705
C5
Q2
2SD601A/QR/-X
R3
4.7k
Q3
UN2111-X
MONO
IC701
UPD784217AGC239
R720
R719
R702
C706
R181
R182
R708
C81
C91
1/50
1.2k
1/50
1/50
AFCK
270
270
47k
47k
47k
47k
1k
1k
100
10k
3.3k
VPP
UN2111-X
D84
1SS355-X
0
10k
47k
47k
Q91
2SD601A/QR/-X
Q84
C77
47/6.3
0.01
C76
C75
47p
C74
82p
VDD
R81
R91
4.7k
C83
0.1
2.2k
R71
R72
X71
QAX0263-001Z
RDSCL
1k
R763
8.2k
8.2k
18k
R92
C92
0.0015
2SD601A/QR/-X
R84
0
IC71
2.2k
SAA6579T-X
R758
47k
1k
10k
R721
R722
R717
0
SW2
Q81
R83R93
4.7k
Q9
UN2111
PSW
VSS
LM1
LM0
18k
C82
R82
0.0015
2SD601A/QR/-X
C71
560p
C72
0.022
C73
2.2/50
R73
2.2k
RDSDA
PLLDI
PLLCL
PLLDA
PLLCE
R755
R754
10M
X1
R74
FM/AM
820
100
IFC-CONT
SEEK/STOP
10k
R723
C78
0.01
AFCK
TU.L
10k
R725
CD.L
CD.R
TU.R
MP3REQ
MP3STBY
MP3DOUT
MP3RESET
0
R718
STEERING
C172
C171
C161
C162
MP3DIN
R726
RDSCL
1/50
1/50
MP3CLK
MONO
10k
R751
REMOCON
RDSDA
D243
RB160M-30-X
R248
220
47K
0.22/50
C245
D244
UDZS5.1B-X
C244
R247
D240
R161
220k
1SS355-X
R171
1SS355-X
220k
D241
R173
R172
2.2k
22k
C175
100/16
DAC-CSN
270
R771
R734
R735
R736
10k
C174
0.22
0.0082
C164
0.0082
C192C191
BR24L16F-W-X
270
C771
0.047
R772
R730
10K
R732
10K
2.2k
2.2k
2.2k
RD
TD
47k
R707
47k
R706
10k
10k
10k
10k
10k
4.7k
4.7k
4.7k
4.7k
4.7k
R162
22k
LCDCE
LCDCL
LCDDA
SM
SQ
LEVEL
KEY2
KEY1
KEY0
ENC2
R765
R768
IC771
R747
R748
R749
C166
0.22
C165
0.22
DIMIN
DIMOUTBUS0
C707
0.047
R163
2.2k
C176
0.22
1/50
1/50
47/16
DAC-PDN
DAC-CDTI
DAC-CCLK
SD/ST
R729
47k
10k
R728
R741
R742
R743
R744
R745
R746
10k
10k
R750
ENC1
C177
0.033
C167
0.033
L701
4.7u
C711
220/6.3
0.01
C713
0.0056
C168
0.0056
C178
0.01
C712
C194
0.01
C781
100/6.3
0.047
1SS355-X
1k
D242
R246
TELMUTE
C243
D781
R245
47
C193
100/16
Q781
1SS355-X
R244
12k
R242
22k
C242
22/16
Q241
2SD601A/R/-X
C179
C180
C170
C169
C990
0.01
C782
0.082
UN2111-X
R892
47k
R243
180k
C241
1/50
R241
47k
4.7/25
4.7/25
IC161
TEA6320T-X
4.7/25
4.7/25
C719
0.001
10
R998
D892
Q891
UN2211-X
1SS355-X
C909
220/6.3
1SS355-X
C891
0.1
D782
0.01
C908
220/6.3
R891
1k
TELMUTE
C783
C907
220/10
D891
1SS355-X
C906
R783
10k
0.01
LEVEL
VOLDA
VOLCL
Q782
UN2211-X
1SS355-X
D902
C905
47/16
R881
10k
Q976
UN2211-X
C919
10/16
Q881
UN2211-X
2SB709A/QR/-X
C904
C913
10/16
C881
47/16
10/16
R882
100K
Q977
HA13164A
0.1
C911
C910
10/16
C915
IC301
LA47515
C312
27k
0.47
R312
R311
47k
R175
47k
R164
Q784
D784
UDZS11B-X
5.6k
R904
R903 R902
C311
27k
0.47
C301
0.47
C302
0.47
D351
1SS355-X
D341
1SS355-X
D321
1SS355-X
D331
1SS355-X
4.7k 9.1k
R342
R352
R321
R322
R332
R351
2.2k
R341
2.2k
2.2k
R331
2.2k
C341
390P
390P
1/50
C313
C314
390P
390P
C303
Q341
2SD1781K/QR/-X
Q321
2SD1781K/QR/-X
R901
C321
0.1
C304
Q351
2SD1781K/QR/-X
Q331
2SD1781K/QR/-X
100
100
R333
R323
0.1
C316
4.7/25
R301
27k
R302
27k
820
820
820
820
1k
C902
2.2/50
0.1
C307
C995
100
100
R343
R353
J321
QNN0519-001
C320
0.022
L901
QQR0703-001
D971
RB160M-30-X
CN901
QNZ0650-001
RB160M-30-X
RB160M-30-X
RB160M-30-X
RB160M-30-X
RB160M-30-X
RB160M-30-X
RB160M-30-X
RB160M-30-X
D901
1N5401-TU-15
C901
3300/16
0.1
C971
D972
RB160M-30-X
C317
47/16
100P
100P
100P
100P
100P
100P
100P
100P
0.1
0.1
0.1
0.1
R971
C318
C961
C962
C963
C964
C965
C966
C967
C968
D991
D992
D993
D994
D995
D996
D997
D998
2.2k
0.47/50
RR-
22/16
C319
RL-
RR+
FR-
FR+
FL-
C315
C322
C323
C324
C325
R972
2.2k
0.022
RL+
1/50
C308
FR-
FR+
FL+
RR-
FL-
RR+
FL+
RL-
RL+
QMFZ047-150-T
47k
R174
47k
R165
UN2111-X
R977
12k
R976
27k
C784
100/16
IC901
1k
R906
0.1
C914
C912
0.01
100/16
C903
47/16
UN2111-X
R905
Q902
10k
UN2211-X
Q901
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
CN702
QGA2006F1-02
D712
UDZS6.2B-X
C718
100P
STEERING
2.2k
R766
22k
R767
X701 X702
0.047
4.7u
8P
L702
C705
C704
QAX0617-001Z QAX0401-001
C703
47k
R701
47k
47k
R752
R753
22P
27P
27P
C701
C702
C708
0.047
RESET
R756
47k
1SS355-X
D713
C709
0.01
IC702
IC-PST3433U-X
C710
47/6.3
R757
2.2k
SHEET 1
2-2
CD servo control section
CN501
GND
FEED- FEEDVF2
FEED+
VCC
GND
VT2
SW1
VT1
SW2
VF1
PSW
VR
SPINDLELD
SPINDLE+
FOCUSVREF
FOCUS+
MD
TRACKING+
TRACKING-
QGB2027M4-22S
FEED+
SPINDLE-
SPINDLE+
FOCUS-
VREF
FOCUS+
TRACKING+
TRACKING-
RST
LM1
0.01
FEED-
SPINDLE+
RFGC
2SB1241/QR/-T
100
100
47u
0.1
C421
0.01
C505
SPINDLE-
RF
C530C531
MD
L401
0.047
Q521
C408
R406
C512
C506
0.047
FOCUS+
FOCUS-
RF
RFRP
0.1
SEL
C525
R527
R528
100/6.3
C409
0.01
C407
47
R507
6.8k
R506
8.2k
IC501
LA6242H-X
3k
R508
C504
1.5k
R512
1.5k
R533
1k
R532 R531
2k 10k
IC401
C405
0.047
8.2k
R510
12k
FEED+
R509
R513
1.5k
R535
100
C534
0.1
5p
LD
C524
0.01
R459
R460
C464
C463C462
100/6.3100/6.3
C422
100/6.3
R404
10k
C403
0.01
R534
R403
15k
C522
0.01
C532
68p
IC521
TA2157FN-X
82k
82k
330k
330k
C523
100/6.3
IC461
NJU7772F15-X
C461
0.1
TC94A34FG-002
C402
0.01
R511
1/50
LM0
VREF
0.01
C533
VF2
VCC
VT2
SW1
VT1
SW2
VF1
PSW
R539
150
LD
VF1
VF2
VT2
VT1
MD
VCC
C521
47k
C411
C412
12p
C420
C419
12p
0.01
R416
Q545
UN2211-X
47
R402
R401
10k
100/6.3
0.01
X401
QAX0760-001Z
C413
2SB624/4/-X
2.2k
R415
R405
2.2k
0.1
C414
0.0022
C416
0.01
R424
R523
R524
R525
R526
Q544
L404
47u
1M
220
C415
0.1
5.1k
R518
TRACKING+
TRACKING-
100/6.3
56k
R530
TEB
100/6.3
22
22
L402
100p
47u
C507
0.047
C529
82k
R529
R504
15k
R501
DMO
8.2k
FOO
4.7k
FMO
C511
0.1
Q501
22
22
2SB1322/RS/-T
R514
R515
TRO
33k
C502
C503
0.01
100/10
0.1
C526
VREF
R537
CDRW
0
C527
0.0068
R536
820
RFDC
TE
10K
R423
C404
0.01
C510
0.01
R452
C508
0.01
47/10
C501
AOUTR-
AOUTR+
AOUTL+
AOUTL-
R451
47k
R454
R456
R458
Q541
22k
4.7k
4.7k
4.7k
UN2111-X
Q502
2SB1132/QR/-W
R516
330
L541
RA550
NRZ0065-103X
L543
47u
100
R433
C580
C589
C599
C590
C440
0.01
4.7/25
4.7/25
4.7/25
4.7/25
UN2211-X
Q542
0
R417
R453
R455
R457
UN2211-X
4.7K
4.7K
R413
R414
R581
8.2k
R582
8.2k
R592
8.2k
R591
8.2k
47u
C568
C570
C571
BUS0
BUCK
CCE
BUS1
BUS2
RST
BUS3
C541
100/6.3
CDON
0
R418
180
Q543
UN2111-X
2.2k
2.2k
2.2k
R440
4.7K
C430
0.01
Q440
R431
10k
C431
100p
4.7K
R412
2.2K
R407
2.2K
R409
2.2K
R408
C581
3300P
C591
3300P
100/6.3
0.01
R481
MP3STBY
MP3CLK
MP3DOUT
MP3RESET
MP3REQ
4.7K
R430
MP3DIN
R432
6.8k
0.1
C542
0.01
R584
R583
R593
R594
R558
10k
D481
UDZS5.1B-X
Q430
2SD601A/QR/-X
100/6.3
C566
C543
1/50
C482
180
8.2k
8.2k
180
0.1
0.01
C565
C481
47/6.3
R553
C583
270P
1M
C593
270P
L544
IC481
AK4385VT-X
1k
R598
1k
R588
1k
0.1
47/6.3
C584
C585
FMO
DMO
0.01
C562
100
100
R551
R552
C545
0.01
47u
R587
AOUTL+
AOUTL-
C483
1k
C561
0.1
100/6.3
0.01
100/6.3
AOUTR+
AOUTR-
C528
C544
R597
R550
0.1
C594
C595
47/6.3
FOO
TRO
C559
C558
C557
C556
R548
R547
R546
100
100
R549
C569
0.01
DAC-CDTI
DAC-CCLK
R595
R596
R559
1.5M
R541
5.6k
DAC-CSN
R586
R585
180
0.047
0.047
470P
470P
0
0
0
IC541
TC94A14FA
C552
C547
0.015
DAC-PDN
C550
C549
C548
6.8k
180
C582
270P
IC581
NJM4565M-WE
C592
270P
6.8k
R542
C551
0.047
C554
0.033
C553
47k 0.047
C546
C597
0.01
C598
0.001
C572
100/6.3
C560
0.01
0.01
C509
47P
0.033
C596
100/10
0.047
C555
R545
10k
0.01
0.0027
0.01
R544
10K
R543
470k
SEL
TEB
RFGC
TE
RFDC
FE
RFRP
RF
CD.R
CD.L
9V
CD.R
A-GND
CD.L
PSW
SW1
SW2
LM0
LM1
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
RST
8V
GND
MP3REQ
MP3RESET
MP3STBY
MP3DIN
MP3DOUT
MP3CLK
DAC-CDTI
DAC-CCLK
DAC-CSN
DAC-PDN
CDON
CDRW
SW5V
VDD5V
(SHEET 1)
R502
R503
R517
8.2k
FE
SHEET 2
2-3
LCD & Key control section
S601
R614R615
S617S618
IC681
RPM7338-V4
C682
D681
0.012
UDZS6.2B-X
C681
10K
R682
LCD1
QLD0299-001
R602R603R604
R605
2.7k
S602
R609
R608
1.8k
1.2k
S611
S610
R612 R611
R613
1.2k 820
S616
R601
KEY2
820
8201.2k1.8k
S605S604S603
S606
R607
R606
820
S608S609
KEY1
820
S607
R610
KEY0
8201.8k2.7k3.9k
S612S613S614S615
SML-310LT/MN/-X
R630
820
D630
COM1
COM2
COM3
S1
D635
D631
680
R631
R632
R633
470
D632
D633
D634
R634
S14
S13
S12
S11
S10S9S8S7S6S5S4S3S2
D636
D637
820
R637
R638
S20
S19
S18
S17
S16
S15
D640
D639
D638
330
R640
R639
S26
S25
S24
S23
S22
S21
D643
D642
D641
330
R642
R641
S27
R643
S32
S31
S30
S29
S28
D644
D645
470
R644
R645
S38
S37
S36
S35
S34
S33
D647
D646
470
R646
R651
S44
S43
S42
S41
S40
S39
D649
D648
470
R652
S50
S49
S48
S47
S46
S45
R627
S51
S52
R661
2.2K
R662
180K
R663
10/6.3
C661
R664
2.2K
10K
D661
1SS355-X
C662
C663
D662
0.022
UDZS5.1B-X
10K
R666
LCDCE
LCDCL
LCDDA
R665
51K
680p
R667
R668
10K
10K
D650
0
R626
0
D651
470
R653
R647
R648
R654
D652
NSPW310BS/BRS/
390
R649
D653
NSPW310BS/BRS/
390
R650
R670
470
Q670
2SB624/4/-X
R672
Q671
UN2211-X
R671
47K
1K
DIMOUT
S49
S50
S51
S52
COM1
COM2
COM3
INH
OSC
CE
CLK
DATA
4.7/6.3
S48
S1
S45
S46
S47
S2
S3S4S5S6S7
R681
470
S44
PT6523LQ
S43
IC661
R687
47K
R688
47K
C686
0.022
S35
S36
S37
S40
S41
S42
S38
S39
S9
S8
S11
S10
S12
S13
S14
JS686
QSW0863-003
100
R686
C687
0.022
S33
S34
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
VMC0335-001
CJ601
REMOCON
DIMOUT
10V
ACC5V
ENC1
ENC2
LCDCL
LCDDA
LCDCE
KEY0
KEY1
KEY2
To CN701
(SHEET 1)
2-4
SHEET 3
Printed circuit boards
Main board (1/2)
L901
R892
D891
D892
C966
D996
C504
C530
R530
C561
R544
C965
D995
C968
D998
R525
C529
C572
C967
D997
R526
C558
R503
C483
RA550
C891
R523
C482
Q542
R999
Q782
D782
IC481
C599
Q541
Q891
C782
R539
C524
R708
C541
R783
C301
L543
C783
R705
R704
R504
C559
C481
R409
R406
R407
R408
C580
C590
D781
Q781
C781
C316
C589
R423
R891
R719
Q881
C901
C404
R412
R413 R414
Q976
C312
C506
Q977
R881
C881
IC501
R583
R584
R594
R592
R593
C595
C318
C555
R545
C551
C523
C525
R527
R528
R547
R548
C544
C308
D991
C307
L541
C554
R546
C549
D992
IC301
C553
C548
D993
Q521
C566
C994
D994
C317
R553
C570
CN501
IC521
R536
C527
C552
C961
C314
C303
R537
C550
L544
IC541
CN901
C963
C962
C315
R312
R311
C313
R301
R302
C304
C964
C556
C547
R559
R543
C546
R541
R502
C543
C311
C302
R524
R501
C557
R542
D901
R901
R509
R510
R508
R507
R977
C244
R513
C415
IC401
C409
R242
R511
R512
R585
IC581
C583
C593
R976
C784
R586
C582
R424
R404
R244
C414
C416
X401
C902
C241 C242
R243
C585
C592
R595
C413
C403
Forward side
C910
C913
C904
R454
R456
R717
R430
C411
C422
Q502
Q501
R452
R458
Q430
C501
R453
R455
R451
R457
C462
IC461
C463
R752
R516
R716
R703
R718
C907
C193
L401
C503
C405
C908
C596
R596
C430
R417
IC901
R175
C710
L402
R174
C180
R715
C711
IC702
L701
L404
C914
C170
C192
CN702
R164
C919
IC161
C709
D713
RA701
C905
C179
IC801
R756 R757
C708
R761
C909
C169
R706
C191
C177
X702
R767
R253
C178
L702
X701
R766
R251
C255
C176
C175
R760
R707
C903
C251
R252
IC701
C173
C174
R172
R173
J801
R165
R194
R729
C771
R734
R736
C258
C48
R771
C253
R735
C256
C172
Q31
C50
R182
R772
Q331
Q7
R44
C32
R43
R181
R702
R732
IC771
C163
C261
R763
D272
C162
C171
R7
C49
R720
R331
Q271
D271
C161
C31
R721
C83
D331
X31
R723
IC71
C257
C40
R74
R730
R271
R261
R258
C254
IC251
C252
IC31
Q10
R725
R726
R728
Q9
R741
Q321
R10
J321
C262
R257
R256
C41
RA30
C78
R775
X71
IC252
R773
C4
C43
C91
R321
C259
PP2
R351
D321
C33
R93
D351
Q81 Q91
R84
R83
Q351
C34
R32
D341
L1
C81
C55
C71
Q341
R341
C9
R4
R2
C73
CN701
R58
C77
CN251
TU1
R53
C52
R54
C51
R57
R51
Q51
J1
C1
C3
C5
Q52
R56
R55
C54
C53
R52
2-5
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