Page 1
SCHEMATIC DIAGRAMS
CD RECEIVER
KD-AR370J,KD-G320J,KD-G421E
KD-G421EX,KD-G421EY,KD-G421EU
KD-G424UI,KD-G425UT,KD-G425UH
KD-G425UN,KD-G425U,KD-G427EE
CD-ROM No.SML200601
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards
COPYRIGHT 2006 Victor Company of Japan, Limited.
2-1
2-5
2-29 to 31
No.MA245SCH
2006/1
Page 2
Block diagram
A
D
A
S
R
o
(For KD-AR370,KD-G320,KD-G424 and KD-G425)
PICK UP
FOCUS &
TRACKING
COIL
LOAD&FEED
MOTOR
POSITION SET
SWITCH
SPINDLE
MOTOR
SW1, SW2
VF1,VF2,VT1,VT2,LD,MD,VREF
TRACKING+,TRACKINGFOCUS+,FOCUS-
FEED+
FEED-
PSW
SPINDLE+
SPINDLE-
SW1, SW2
Function section
IC501
BTL
DRIVER
CN503
CN503
SPINDLE+,SPINDLEFEED+,.FEEDTRACKING+
TRACKING-
CN501
FOCUS+,FOCUS-
CD mechanism control secti
CN502
CN502
VF1
VF2
VT1
VT2
MD
LD
VREF
PSW
FOP
TRP
TRVP
VREF
SPOUT
IC521
RF AMP
MLD
MDAT
MCLK
NRST
NPW
LCD & Key control section
D630
POWER LED
S601 to S618
KEY MATRIX
IC661
LCD DRIVER
COM1 to COM3
S1 to S52
LCD1
LCD DISPLAY
ACC5V
KEY0
KEY1
KEY2
LCD.CL
LCD.DA
LCD.CE
D631 to D648
D650,D651
LIGHTING
DISPLAY
DIMMEROUTILL10V
REMOCON
IC681
REMOCON
D652,D653
DIMMER
Q670,Q671
DIMMER
CONT.
ENC1
ENC2
JS686
ENCODER
CJ601
KEY0 to 2
LCD.CL
LCD.DA
LCD.CE
REMOCON
CN701
ENC1,ENC2
DIMMEROUT
1.5V
OUTL
OUTR
IC581
CD L.P.F.
IC981
1.5V REGULATOR
STAT
IRQ
VDD5V
IC523
I
2-1
Page 3
ANT
Main amplifier section
J1
TU1
FM/AM
TUNER
TU_L
TU_R
rol section
MLD
MD ATA
MCLK
NRST
NPWDOWN
STAT
IC523
IRQ
LM
MSW
SW1
SW2
PSW
SM
SQ
EO
IFC
IFC.CONT
FM.OSC
S.METER
IC701
CPU
MUTE
SUBMUTE
RESET
JBUS.SI
JBUS.SO
JBUS.IO
JBUS.SCK
JBUS.INT
Q781, Q782,Q783
MUTING
Q301
SDA
SCL
E.VOLUME
IC775
RESET
CD.L
CD.R
LINEOUTMUTE
IC161
Only for KD-AR370 and KD-G320
Q321, Q331
FLO
LINE OUT
FRO
RLO
RRO
MUTE
OUTLF,OUTRF
OUTLR,OUTRR
STANDBY
MUTING
Q341, Q351
LINE OUT
MUTING
POWER
EACH BLOCK
SW5V,ACC5V
VDD5V.CD5V
9V,ILL10V
STBY
OFFSET
IC901
REGULATOR
ANT
D906,D907
PWR.ANTENA
Only for KD-G424 and KD-G425
TEL_MUTE
Q891
TEL.MUTE
Only for KD-AR370
IC801
JVC BUS
IC301
AMP.
ACC
TEL.MUTE
SCK
LF+,LFRF+,RFLR+,LRRR+,RR-
LF
RF
LR
RR
CH_L
CH_R
LINE OUT
FRONT
J321
LINE OUT
REAR
CN901
SPK
BATTERY
J801
CHANGER
CONTROL
JBUS.SI
2-2
Page 4
Block diagram
A
D
A
S
R
o
(For KD-G421 and KD-G427)
PICK UP
FOCUS &
TRACKING
COIL
LOAD&FEED
MOTOR
POSITION SET
SWITCH
SPINDLE
MOTOR
SW1, SW2
VF1,VF2,VT1,VT2,LD,MD,VREF
TRACKING+,TRACKINGFOCUS+,FOCUS-
FEED+
FEED-
PSW
SPINDLE+
SPINDLE-
SW1, SW2
Function section
IC501
BTL
DRIVER
CN503
CN503
SPINDLE+,SPINDLEFEED+,.FEEDTRACKING+
TRACKING-
CN501
FOCUS+,FOCUS-
CD mechanism control secti
CN502
CN502
VF1
VF2
VT1
VT2
MD
LD
VREF
PSW
FOP
TRP
TRVP
VREF
SPOUT
IC521
RF AMP
MLD
MDAT
MCLK
NRST
NPW
LCD & Key control section
D630
POWER LED
S601 to S618
KEY MATRIX
IC661
LCD DRIVER
COM1 to COM3
S1 to S52
LCD1
LCD DISPLAY
ACC5V
KEY0
KEY1
KEY2
LCDCL
LCDDA
LCDCE
D631 to D648
D650,D651
LIGHTING
DISPLAY
REMOCON
IC681
REMOCON
D652,D653
DIMMER
Q670,Q671
DIMMER
CONT.
DIMOUTILL10V
ENC1
ENC2
JS686
ENCODER
CJ601
KEY0 to 2
LCDCLK
LCDDA
LCDCE
REMOCON
CN701
ENC1,ENC2
DIMOUT
1.5V
OUTL
OUTR
IC581
CD L.P.F.
IC981
1.5V REGULATOR
STAT
IRQ
VDD5V
IC523
I
2-3
Page 5
l section
MLD
MD ATA
MCLK
NRST
NPWDOWN
IC523
ANT
LM
MSW
SW1
SW2
PSW
STAT
IRQ
Main amplifier section
J1
TU1
FM/AM
TUNER
FSU
AFS
Q_OUT
SSTOP
TUSDA
TUSCL
IC701
CPU
TU_L
TU_R
RDSDA
RDSCL
ERCLK
ERDI
RESET
Q781, Q782
MUTE
IC71
RDS
DETECTOR
IC771
EPROM
IC775
RESET
MUTE
DRIVER
MUTE
VSCL
VSDA
MPXW
Q301
CD_L
CD_R
FL_OUT,FR_OUT
RL_OUT,RR_OUT
IC171
E.VOLUME
POWER
CDON
Q341, Q351
LINE OUT
MUTING
MUTE
IC301
POWER
AMP.
STANDBY
EACH BLOCK
SW5V,ACC5V
VDD5V.CD5V
9V,ILL10V
IC901
REGULATOR
ACC
RLO,RRO RLO,RRO
LF+,LFRF+,RFLR+,LRRR+,RR-
LINE OUT
REAR
CN901J321
SPK
BATTERY
STEERING
Only for KD-G421
Q891
TEL_MUTETEL_MUTE
TEL.MUTE
SI,SO,I/O,SCK,INT SI/SO
IC801
JVC BUS
CH_L
CH_R
J801
CHANGER
CONTROL
CN761
STEERING
REMOTE
2-4
Page 6
Standard schematic diagrams
3
Main section (for KD-AR370,KD-G320,KD-G424,KD-G425)
J1
QNB0190-001
R31
R32
R33
1.5k
2SC3928A/QR/-X
C33
2.2/50
0.001
C32
Q31
2SC3928A/QR/-X
Q32
R34
1k
NPWDOWN
CD8V
CD_R
CD_L
MSW
NRST
STAT
MDATA
MCLK
R35
10k
220/10
R36
470
C31
9V
SW1
SW2
PSW
LM
IRQ
MLD
TU1
QAU0312-002
L1
4.7u
3.3K
R91
MONO
STAT
10k
R2
R4
SEEK/STOP
JBUS.IO
JBUS.SCK
4.7k
4.7k
R726
R725
C97
C98
C99
10k
Q1
RT1N141C-X
JBUS.SI
JBUS.SO
4.7k
4.7k
R724
R723
R81
0.1
0.01
82pF
D782
UDZW10B-X
IFC.CONT
0.1
C715
C782
RT1P141C-X
R721
3.3K
0.0068
0.0068
C92
C82
47/16
Q782
1SS
RT
D783
1SS355W-X
LINEOUTMUTE
47k
1k
1k
1SS355W-X
D2
R13
D4
2.2k
220p
C1
2SA1365/F/-X
10k
1SS355W-X
RT1N141C-X
10k
R752
0.1/50
47/16
C2
C3
Q5
R12
Q4
10k
R754
R37
E0
R3
10
0
1SS355W-X
D701
C17
C12
Q6
2SA1530A/QR/-X
D3
1SS355W-X
R715
1SS355W-X
1SS355W-X
1SS355W-X
D702
D703
D704
1SS355W-X
D1
R14
47k
0.022
C4
1k
C16
R11
10k
DETACH
10k
R711
FM/AM
47K
R743
MSW
R10
5.1k
R742
100
R1
0.01
220/10
C6
C9
C13
10
FM.OSC
NPWDOWN
0.027
0.027
C81
8.2k
0 22k
47k
C91
S.METER
LCD.CE
3.3k
R701
120p
C8
IFC
LCD.SCK
3.3k
R709
0.01
C11
MA111-X
LCD.SO
3.3k
R708
0.1
C15
Q2
RT1N141C-X
D6
MLD
MCLK
SD/ST
MDATA
0.1/50
C7
R6
R5
R16
IRQ
R710
QGZ1601J1-15
CN701
C711
0.1
0.1
C98
0.1
UDZW6.2B-X
UDZW6.2B-X
C713
D712
D711
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
D721
D714
D713
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
D716
D715
D717
DETACH
ACC5V
REMOCON
DIMMEROUT
LCD.SCK
LCD.SO
LCD.CE
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
D718
D719
D720
ENC1
ENC2
KEY0
KEY1
KEY2
TEL-M
LM
C702
0.01
NRST
DIMMEROUT
SCL
SDA
VOLMUTE
SUBMUTE
STBY
OFFSET
10k
R751
R719
R712
R713
R760
10k
R753
IC701
LC723784-9D19
0
4.7K
4.7K
2.2K
2.2K
R762
R763
1K
R764
100
47k
10K
R716
R717
R718
R703
R704
47k
47k
10k
47k
47k
10K
R705
R706
R722
SW1
SW2
PSW
ENC2
ENC1
IFC.CONT
SD/ST
4.7k
4.7K
R727
R728
JBUS.INT
REMOCON
FM/AM
MONO
SEEK/STOP
MUTE
R749
R733
R732
R730
R731
R729
R756
R755
S.METER
47k
47k
1K
10K
10K
47k
47k
47k
2-5
Page 7
MONO
OCO
10k
R2
SEEK/STOP
STAT
JBUS.IO
4.7k
R726
4.7K
R728
JBUS.INT
FM/AM
R4
10k
Q1
RT1N141C-X
JBUS.SO
JBUS.SCK
4.7k
4.7k
R724
R725
MONO
SEEK/STOP
TU1
QAU0312-002
R91
R81
C97
0.01
C98
82pF
C99
D782
UDZW10B-X
IFC.CONT
JBUS.SI
4.7k
R723
MUTE
0.1
0.1
C715
3.3K
3.3K
0.0068
C82
C782
47/16
Q782
RT1P141C-X
47k
R721
R749
R733
R732
R730
R731
R729
R756
R755
S.METER
1SS355W-X
RT1P141C-X
D783
1SS355W-X
47k
47k
1K
10K
10K
47k
47k
47k
3.9K
0.0068
R92
R82
C92
D784
Q783
LINEOUTMUTE
SUBMUTE
R748
47k
R740
R739
R736
3.9K
C83
Q781
RT1P141C-X
MUTE
X701
QAX0406-001Z
D706
1SS355W-X
10k
10k
10k
4.7k
R735
C703
C704
4.7k
R737
1/50
C93
FM.OSC
R741
KEY0
KEY1
KEY2
4.7k
R738
FLO
1SS355W-X
100/10
C909
VOLMUTE
100/10
C908
CH.R
0.01
C907
C166
C783
R164
C181
0.082
R801
R802
JBUS.SI
FLO
47k
4.7/25
1/50
4.7k
R903
1SS355W-X
1SS355W-X
1SS355W-X
R804
C182
9.1k
R901
FRO
RLO
47K
R172
C175
4.7/25
C163
0.47
IC161
TDA7419-X
47k
R892
D891
1SS355W-X1k1SS355W-X
C891
0.1
Q902
47k
R909
Q903
2SA1530A/QR/-X
R891
27K
LINEOUTMUTE
RRO
MEMORY.IN
J801
QNZ0095-001
CH.L
RRO
C164
0.47
D892
20k
R908
C895
47k
R895
D903
1SS355W-X
R907
1K
1K
R906
R905
SCK
SCL
SDA
Q895
RT1N141C-X
0.1
12K
0.01
C910
1/50
C781
220/6.3
D781
1SS355W-X
CD_L
CD_R
2.2/50
2.2/50
C183
Q891
RT1N141C-X
2SC3928A/QR/-X
C184
R910
22p
27p
EO
47k
IFC
47K
R707
C716
0.1
TEL-M
C705
10/16
R745
47k
C701
220/6.3
L701
4.7u
VDD
220/10
C911
D331
D321
D351
D341
R803
100
47k
1/50
22/16
C904
22k
100k
JBUS.SO
R174
C176
22/16
C905
R331
820
R335
2.2K
R325
2.2K
R321
820
R351
820
R355
2.2K
R345
2.2K
R341
820
C801
R809
IC801
SN74AHC126NS-X
JBUS.IO
RLO
FRO
47K
47k
R162
C165
4.7/25
4.7/25
C194
C915
10/16
10/16
CRS03-X
C919
D907
D906
0.047
10/16
CRS03-W
R332
100
C802
100p
0
R352
R342
R322
100
100
100
10K
100/10
C191
R807
R173
C913
C331
100P
C321
100P
C351
100P
C341
100P
4.7
R811
R810
100k
22k
100
47K
R808R805
0.22
JBUS.INT
JBUS.SCK
47k
R806
100k
C168
R166
0.47
0
C312
C313
C169
R167
0.47
0
C179
R177
0.47
0
C314C315
C178
R176
0.47
0
C902
0.01
C901
2700/16
!
D901
1N5401-F64
IC901
!
AN80T71
C916
2.2/50
C304
0.022
100P
100P
C319
0.022
100P
C309
100/16
100P
C323
0.01
R315
7.5K
C303
0.022
D904
D905
L901
QQR0703-001
R902
RF+
4.7/25
RF+
RR+
LR+
LF+
CRS03-W
C914
RF-
RR-
LR-
CRS03-W
LF-
1k
C363
C305
0.1
C302
R303
R302
LR+
0.1
C316
0.1
LR-
0.1
LF+
R364
C310
10/16
J321
R361
RF-
R911
R363
C361
2.2
2.2
LF-
C308
2.2
0.1
C364
0.1
C307
0.1
C311
0.47
0.1
C362
0.1
R362
C306
0.1
RR+
RR-
STBY
1k
47k
CN901
QNZ0611-001
2.2K
R912
2.2K
OFFSET
2.2
C301
0.22/50
R311
R301
1k
47K
IC301
!
LA47201
Q301
2SC3928A/QR/-X
D301
UDZW3.3B-X
QMFZ047-150-T
R304
4.7k
!
Q331
KTD1304-X
Q321
KTD1304-X
Q351
KTD1304-X
Q341
KTD1304-X
10K
CH.L
CH.R
47K
R163
0.01
R191
C192
0.1
C906
22/16
C903
R918
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-6
Page 8
CD servo control section (for KD-AR370,KD-G320,KD-G424,KD-G425)
2
4
K
01
FOCUS+
TRK+
FOCUS-
TRK-
SP-
FEED-
SP+
FEED+
CN501
FEEDFEED+
PSW
SPINDLESPINDLE+
SW1
SW2
TRACKING-
TRACKING+
FOCUS+
FOCUSLD
GND
MD
VR
VF1
VREF
VT1
GND
VT2
VCC
VF2
GND
FEED-
VF2
FEED+
RFVDD
GND
VT2
SW1
VT1
SW2
VF1
PSW
VR
SPINDLELD
SPINDLE+
FOCUS-
VREF
FOCUS+
MD
TRACKING+
TRACKING-
QGB2027M4-22S
R565
FEED-
FEED+
150
SP+
FOCUS-
FOCUS+
TRK+
TRK-
SP-
VREF
VF2
VT2
VT1
VF1
LD
VT2
VT1
VF1
VF2
MD
MD
LD
VREF
CN503
QGZ2512M1-08
R543
R544
Q521
R554
2SA1530A/QR/-X
47K
R556
QGZ2512M1-10
CN502
SW1
SW2
PSW
VREF
R5
30
3300p
39k
4.7k
C527
C5
560
R541
R542
C529
180p
0.0082
1k
1k
47/6.3
4.7
C537
C533
47/6.3
C530
0.0082
R545
R548
C528
3.3K
3.3K
C520
C535
0.0033
2-7
Page 9
528
0p
39k
R541
3.3K
3.3K
0.0033
QGZ2512M1-10
CN502
R540
30K
C524
560P
C531
0.33
C532
0.33
0.1
C535
C525
0.022
C526
0.022
C536
MSW
47/6.3
TRVP
TRPLMFOP
C523
NPWDOWN
C539
0.1
C540
ARF
SPOUT
R537
680p
C541
0.015
C542
C543
1000p
C544
0.082
C546
100p
1.5M
0.1
R558
!
220/6.3
82k
D501
1A3G-T1
0.1
C552
C551
FOP
MN6627945EE
R559
820
47/6.3
IC521
TRP
OUTR
C547
QTE0J57-476Z
OUTL
C583
820p
15k 27K
QTE1E57-475Z
0.1
C534
OUTL
TRVP
SPOUT
0.1
C545
0.1
OUTR
C549
QTE1E57-475Z
15k
C584
IC581
NJM4565E-X
C585
47/6.3
C538
C548
QTE0J57-476Z
C586
820p
R585 C587
5.6K
R587
R535
10K
R588 R590R584
R586
5.6K
150p
27K
C588
150p
CD_R
0
10k
22k
R594
R592
C590
QTE0J57-476Z
C591
QTE1C57-107Z
0.1
22k
10k
R593
R591
C592
R589R583
0
0.1
C983
C984
100/6.3
NJU7772F15-X
SW1
SW2
PSW
NPWDOWN
R533
27k
R534
68k
4.7k
0.22
R523
C522
R525
1K
R526
1K
R527
2.2k
R528
2.2k
2.2k
R529
R530
4.7k
R531
4.7k
R532
4.7k
IC981
MSWLMNRST
X521
QAX0714-001Z
R521
1M
R522
220
R524
2.2K
CD_L
C982
C981
100/6.3
0.1
IRQ
STAT
MCLK
MDATA
MLD
PSW
1k
1k
R562
SN74LVC2G07V-X
IC523
NRST
MLD
MDATA
MCLK
R561
STAT
IRQ
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-8
Page 10
Function section (for KD-AR370,KD-G320,KD-G424,KD-G425)
C517
R517
15k
5.6K
R518
5.6k
R514
2-9
Page 11
CN503
QGZ2512M1-08
C509
0.047
C510
0.047
C508
0.047
502
C
7.5k
R568
R569
11k
0.1
47k
R519
R509
100K
R515
15k
5.6K
R518
R517
15k
5.6k
R514
C517
0.0018
R510
R513
10k
27K
C513
6800p
C501
220/6.3
R508
3.3K
8.2k 5.1k
R502 R503
C507
2SA1705/ST/-T
R507
15k
C511
2200p
1K
R516
R511
15K
5.6K
R512
C506
0.01
C505
47/16
30k
R506
IC501
LA6242H-X
!
C518
68p
11k
R505
8.2k
0.1
C514
0.1
0.1
C512
R500
Q501
R520
22
R501
C503
220/10
22
0.1
C504
C515
0.0012
CN502
QGZ2512M1-10
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-10
Page 12
LCD & Key control section (for KD-AR370,KD-G320,KD-G424,KD-G425)
D
D
LCD1
S601
S618
R605
R610
2.7K
S612
R615
S617
S602
S611
R614
S610
R613 R612
1.2K 820
S616
R602R603R604
8201.2K1.8K
S615
S1S2S3S4S5S6S7S8S9
R601
KEY0
8202.7K
S606
S605S604S603
820
R606R607R609 R608
8208201.8K 1.2K
KEY1
S607
S608S609
R611
KEY2
8201.8K2.7K
S613
S614
R630
D630
SML-310LT/MN/-X
R631
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
S47
S48
S49
S50
S51
S52
COM3
COM2
D640
D643
D642
D641
330
R641
R640
D647
D639
D648
D646
D638
330
R643
R644
R642
330
470
R645
R637
D644
D645
470
R639
R638
D636
D635
D637
D631
470
R632
R633
470
R634
R635
D633
330
D632
D634
R636
2-11
Page 13
IC681
RPM7338-V4
C682
D681
0.012
UDZW6.2B-X
C681
R682
S50
S51
S52
COM3
COM2
COM1
S49
S50
S51
S52
COM1
C663
0.022
OSC
LCD.CE
LCD.CL
LCD.DA
R666
R667
R668
COM2
COM3
VDD
INH
10K
10K
10K
R645
2.2K
R663
180K
10/6.3
D661
C661
R661
10K
R664
1SS355W-X
D662
UDZW5.1B-X
C662
680p
R665
51K
D650
D651
D652
D653
NSPW310BS/BRST/
390
R650
R649
470
R646
Q670
NSPW310BS/BRST/
2SA1365/F/-X
R672
390
R670
470
1K
RT1N141C-X
R671
Q671
R662
47K
DIMMEROUT
2.2K
4.7/6.3
10K
470
R681
S48
S47
S46
S45
S44
PT6523LQ-L
S1
S43
IC661
R690
47K
47K
R689
C686
0.022
S42
S41
S40
S39
S38
S37
S36
S35
S34
S14
S13
S12
S11
S10S9S8S7S6S5S4S3S2
JS686
QSW0976-001
100
R686
C687
0.022
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
CJ601
QGZ1601K1-15S
REMOCON
DIMMEROUT
ACC5V
ENC2
LCD.CL
LCD.DA
LCD.CE
KEY0
KEY1
KEY2
10V
ENC
GND
2-12
Page 14
Main section (for KD-G421)
9
R
C719
k
!
TU1
QAU0443-001
QGZ1601J1-15
CN701
C711 C712
0.1 0.1
UDZW6.2B-X
D711
UDZW6.2B-X
0.1
UDZW6.2B-X
D713
C713
D712
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
D715
D714
D721
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
D717
D718
D716
CD_R
CD_L
NPWDOWN
MSW
NRST
STAT
MDATA
MCLK
DETACH
REMOCON
ENC1
ENC2
DIMOUT
LCDCLK
LCDDA
LCDCE
UDZW6.2B-X
UDZW6.2B-X
D719
D720
SW1
SW2
PSW
MLD
KEY0
KEY1
KEY2
IRQ
LM
J1
QNB0190-001
R767
R766
POWER
R758
R759
R760
R761
RDSDA
R762
AFS
NRST
L1
4.7u
1SS355W-X
1SS355W-X
D1
D2
FSU
RDSDA
RDSCL
R77
2K
C71
560p
LC72725NM-X
IC71
47k
R757
10k
R756
47k
47k
47k
47k
4.3k
47k
47k
0.1
C714
47k
R708
0.1
C8
47k
R702
C5
0.1
2.2k
2K
C72
10/16
0.01
C78
C73
R73
R75
330P
R71
2.2K
R72
0
R76
X71
QAX0263-001Z
0.01
33P
C76
1K
R701
33P
C75
C74
10K
SSTOP
47k
R755
R754
!
MN101C49KST
10k
10k
10k
R711
R709
R713
C706
1K
4.7k
R714
R712
R707
R710
4.7k
4.7k
SSTOP
C77
47/6.3
0
MSW
IC701
0.1
0.1
C705
QAX0667-001Z
R716
R765
TUSDA
LM
47k
X701
TUSCL
R74
NPWDOWN
0
R4
10K
C4
0.1
100
IC771
BR24L16F-W-X
270
270
R772
R771
ERDI
ERCLK
MUTE
CDON
R717
QAX0401-001
X702
27p
C703
C2
0
C704
47/6.3
0.047
27p
C771
C1
C3
0.1
220/10
0
R78
I/O
ERDI
ERCLK
10k
10k
R752
R753
TP3
R718
TP4
2.2k
R723
R722
10K
2.2k
10K
R720
R724
D3
Q_OUT
MUTE
R725
1/50
C92
Q781
RT1P141C-X
220/10
TP2
C91
0.012
Q74
R728
D781
47k
47k
C82
1/50
AFS
RT1N141C-X
1SS355W-X
0.1
0.1
C7
C6
R744
R742
10k
R740
R738
47k
R735
2.2k
R733
R729
47k
C708
0.1
47k
R81
C782
2.7K
R
2.2/50
4.7K
R749
10
2
1
220/6.3
TU_L
TU_R
R3
C81
3.3K
0.012
C85
0.22
C781
R727
10k
10k
R726
10k
R721
R719
2-13
C701
27p
KEY0
Q_OUT
KEY2
FSU
KEY1
LCDDA
LCDCLK
SO
SI
ENC1
ENC2
SCK
C702
27p
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
Page 15
T
C91
QAM0682-001
0
012
CN761
QGA2006F1-02
C718
100P
D722
R172
4.7k
R171
39k
C175
R161
39k
R162
4.7k
Q912
RT1N141C-X
1K
R906
1K
R905
UDZW6.2B-X
R173
0.0047
C177
C176
C166
C167
0.0047
R163
Q911
2SA1530A/QR/-X
27K
R912
1SS355W-X
0.1
0.1
D903
2.2k
4.7/25
C168
2.2k
C903
C178
4.7/25
22/16
/50
C92
R91
15K
R81
R
15K
C82
1/50
6.8K
6.8K
C93
.
AFS
Q74
781
RT1P141C-X
1SS355W-X
D781
0.1 RT1N141C-X
C7
R744
10k
R740
R735
2.2k
P2
R728
47k
47k
47k
47k
R742
R733
R729
2.2/50
C782
0.1
4.7K
C6
R749
10k
2.7K
R738
47k
R736
2.2k
10k
C719
C708
220/6.3
0.1
R92
R82
Q782
RT1P141C-X
D782
UDZW11B-X
4.7K
R750
R748
R747
R746
220
R745
100k
100K
R741
47k
2.7K
R737
47k
22K
R734
10k
R730
L701
4.7u
C709
220/6.3
R751
220
220
220
DIMOUT
R743
R739
STEERING
REMOCON
4.7K
VSCL
VSDA
TUSCL
TUSDA
MCLK
STAT
MDATA
DETACH
LCDCE
RDSCL
100K
R731
TP5
C710
C83
MLD
SW1
PSW
SW2
IRQ
PS2
INT
47p
0.1
C707
1/50
R1
8.2
8.2
R2
STEERING
CD_L
CH_L
CH_R
CD_R
VSCL
VSDA
PS2
47k
R732
TP6
POWER
CDON
1/50
C94
C84
R310
47K
100
R311
C174
C173
0.01
C189
100/10
C188
C160
10/16
1k
R891
47k
C775
D891
Q891
C891
RT1N141C-X
QSW1049-001Z
100
R777
D776
0.01
47/6.3
C776
R892
TP1
1SS355W-X
D775
47k
R775
1/50
C162
1SS355W-X
0.1
S775
UDZW5.6B-X
22/16
470p 0.15
1/50
C172
C164
C163
22/16
0.15 470p
C165
D892
1SS355W-X
IC775
S-80833CNNB-G-W
R776
2.2k
12K
R911
0.01
C910
C169
C179
4.7/25
4.7/25
100/10
C909
22/16
C904
30k
R175
30k
R165
22/16
C905
RLO
R901R903
1SS355W-X
RRO
30k
R176
30k
R166
9.1k4.7k
10/16
C915
D351
D341
C783
CH_L
C916
CH_R
2.2/50
100/6.3
C919
1SS355W-X
0.082
J801
QNZ0095-001
NJW1192V-X
IC171
1k
R902
0.01
100/10
C908
C907
RRO
C911
0.1
RLO
4.7/25
4.7/25
R351
R355
2.2K
R345
2.2K
R341
820
820
C181
C191
C802
0.01
R181
R191
47k
47k
Q351
KTD1304-X
Q341
KTD1304-X
47K
R802
QFV91HJ-474Z
C193
C192
QFV91HJ-474Z
QFV91HJ-474Z
C182
R183
QFV91HJ-474Z
C183
R352
100
R342
100
R805
100K
R804
22K
R803
100
R193
R192
R182
0
R305
0
C318
1/50
CRS03-W
D971
C902
0.01
QEZ0769-278
D901
1N5401-F64
L901
QQR0703-001
IC901
AN80T71
!
C901
R307
7.5K
0
0
0
0.022
0.022
C304
C303
C312
C313
C314C315
100P
100P
100P
100P
100/16
C322
0.01
!
C351
100P
C341
100P
IC801
SN74AHCT126PW-X
LR+
C326
0.1
R326
2.2
C325
0.1
R325
2.2
C311
1/50
C319
0.022
C316
0.1
C309
R323
2.2
C323
0.1
R324
2.2
C324
0.1
RF+
R306
4.7/25
R303
R302
RF+
RR+
LR+
LF+
D972
RF-
RR-
LR-
LF-
10k
R806
B315
LF+
LF-
LR-
C308
0.1
C307
0.1
C321
QFV91HJ-474Z
AGND
C310
10/16
0.1
C305
RR+
RF-
C302
1k
47K
CRS03-W
R971
0.1
C971
CN901
QNZ0611-001
J321
QNN0773-001
SI
SO
I/O
R807
100K
INT
330
SCK
R808
R809
22k
R810
100
C801
0.047
R801
47k
!
IC301
LA47201
0
C317
1/50
C320
0.022
C306
0.1
RR-
1k
R301
2.7k
Q301
2SC3928A/QR/-X
D301
UDZS3.3B-X
QMFZ047-150-T
!
R304
4.7k
C301
1/50
2.2K
2.2K
R972
parts.
make
e.
2-14
Page 16
CD servo control section (for KD-G421)
5
3
3
3
0
0
FEEDFEED+
PSW
SPINDLESPINDLE+
SW1
SW2
TRACKING-
TRACKING+
FOCUS+
FOCUSLD
GND
MD
VR
VF1
VREF
VT1
GND
VT2
VCC
VF2
GND
FEED-
VF2
FEED+
RFVDD
GND
VT2
SW1
VT1
SW2
VF1
PSW
VR
SPINDLELD
SPINDLE+
FOCUS-
VREF
FOCUS+
MD
TRACKING+
TRACKING-
CN501
QGB2027M4-22S
R565
QGZ2512M1-10
3300p
C527
C553
4.7k
R542
180P
C528
8200P
3.3K
3.3K
39K
R541
C554
CN502
R540
30K
C524
560P
C535
R
R
C5
0.
C5
0.3
0.1
C536
CN503
QGZ2512M1-08
VREF
150
R543
1K
R544
1K
8200P
Q521
R554
4.7
2SA1530A/QR/-X
47K
R556
47/6.3
C537
47/6.3
C533
R545
R548
2-15
Page 17
QGZ2512M1-10
CN502
D501
1A3G-T1
820p
C583
15k
QTE1H54-225Z
QTE1H54-225Z
R584
15k
C584
IC581
NJM4565E-X
C585
C586
820p
R585 C587
10K
R587
R588
R586
10K
100P
30K
30K
C588
100P
R590
1.5K
100k100k
10k
R593R594
R592
C590
QTE0J57-476Z
C591
10k
QTE1A57-107Z
0.1
R591
C592
R589R583
1.5K
0.1
100/6.3
C983
C984
0.1
C534
0.0033
C552
47/6.3
C551
C523
100p
R537
1.5M
0
R539
R540
30K
39K
4.7k
C524
560P
R541
R542
180P
C528
553
C554
0P
8200P
45
3.3K
48
3.3K
C535
C531
C532
0.33
0.1
0.33
R538
C525
0.022
C526
0.022
C536
47/6.3
0
IC521
MN6627945EE
C539
0.1
C540
680p
C541
0.015
C542
ARF
0.1
C543
1000p
C544
0.082
C546
R558
R559
220/6.3
82k
47/6.3
820
C547
C548
47/6.3
C549
0.1
0.1
C545
C538
47/6.3
R535
10K
C521
R533
R534
NJU7772F15-X
27k
68k
0.1
0.22
R523
C522
1K
R525
1K
R526
2.2k
R527
2.2k
R528
2.2k
R529
4.7k
R530
4.7k
R531
4.7k
R532
4.7k
IC981
X521
QAX0714-001Z
R521
1M
R522
220
R524
2.2K
C982
C981
100/6.3
0.1
1k
1k
R562
SN74LVC2G07V-X
IC523
R561
R566
10
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-16
Page 18
Function section (for KD-G421)
R514
L
R518
R51
15k
5.6K
2-17
Page 19
CN503
QGZ2512M1-10
C509
0.047
C510
0.047
C508
0.047
0.1
C502
R568
R519
7.5k
47k
R569
11k
R509
100K
R515
15k
R518
R517
15k
5.6K
LA6242H-X
C517
R513
5.6k
R514
IC501
R510
27K
0.0018
10k
C513
!
R508
3.3K
6800p
C501
R503
220/6.3
R502
0.1
C514
5.1k
0.1
8.2k
C507
2SA1705/ST/-T
Q501
C512
0.1
R500
R520
22
C518
68p
22
R501
8.2k
C503
0.1
220/10
C504
R505
11k
30k
R506
C506
C505
47/16
0.01
C515
R507
0.0012
15k
C511
R516
R511
2200p
1K
15K
R512
5.6K
CN502
QGZ2512M1-08
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-18
Page 20
LCD & Key control section (for KD-G421)
COM2
LCD1
QLD0387-001
S601
S618
R605
R610
2.7k
S612
R615
S617
S602
S611
R614
S610
R613 R612
1.2k 820
S616
R602R603R604
8201.2k1.8k
S615
S2
S3
S4
S5
S6
S1
R601
KEY0
8202.7k
S605S604S603
S606
820
R606R607R609 R608
8208201.8k 1.2k
KEY1
S607
S608S609
R611
KEY2
8201.8k2.7k
S613
S614
GND
R630
D630
SML-310LT/MN/-X
R631
S9
S7
S8
D635
D631
470
R633
R632
S15
S11
R634
D636
D637
S16
S12
D632
D633
D634
330
R635
R636
S10
470
S17
S13
S14
S23
S24
S19
S18
S25
S20
S26
S21
S22
D644
D645
R638
470
R637
S32
S31
S27
S30
S28
R639
S29
330
R640
D643
D642
D641
S35
S33
S34
S36
D640
D639
D638
330
R641
R642
S42
S38
S43
S40
S41
S37
S39
D647
D648
D646
330
R645
R643
R644
S49
S44
S45
S46
D650
D651
470
R646
S52
S48
S47
S51
S50
COM3
2-19
Page 21
IC681
RPM7338-V4
C682
D681
0.012
UDZW6.2B-X
C681
R682
S52
S51
S50
COM3
COM2
COM1
S49
D652
NSPW310BS/BRST/
390
R650
R649
Q670
D653
NSPW310BS/BRST/
2SA1365/F/-X
390
R672
R670
470
R671
1K
Q671
RT1N141C-X
R661
2.2K
R662
2.2K
D662
UDZW5.1B-X
10K
47K
DIMOUT
R663
180K
C661
10/6.3
D661
R664
1SS355W-X
C662
680p
R665
51K
LCDCE
LCDCLK
LCDDA
C663
0.022
R666
R667
R668
S50
S51
S52
COM1
COM2
COM3
10K
10K
10K
4.7/6.3
10K
470
R681
S48
S46
S47
S45
S44
S43
S42
INH
OSC
CE
CLK
DATA
IC661
PT6523LQ-L
S1
C686
0.022
S41
S39
S40
S38
S37
S34
S36
S35
S14
S13
S12
S11
S10S9S8S7S6S5S4S3S2
JS686
QSW0976-001
100
R686
C687
0.022
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
CJ601
QGZ1601K1-15S
ILL10V
ACC5V
REMOCON
ENC1
ENC2
DIMOUT
LCDCLK
LCDDA
LCDCE
KEY0
KEY1
KEY2
2-20
Page 22
Main section (for KD-G427)
7
2
1
0
!
TU1
QAU0453-001
QGZ1601J1-15
CN701
C711 C712
0.1 0.1
UDZW6.2B-X
D711
UDZW6.2B-X
0.1
D712
C713
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
D714
D713
D721
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
D715
D717
D716
NPWDOWN
MDATA
DETACH
REMOCON
DIMOUT
LCDCLK
LCDDA
LCDCE
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
D718
D719
D720
CD_R
CD_L
PSW
MSW
NRST
STAT
MCLK
SW1
SW2
IRQ
MLD
ENC1
ENC2
KEY0
KEY1
KEY2
LM
J1
QNB0190-001
R767
R763
R766
AFS
NRST
POWER
R758
R759
R760
R761
RDSDA
R762
SW-FLAG
L1
4.7u
1SS355W-X
1SS355W-X
D1
D2
47k
47k
47k
47k
4.3k
47k
R764
10K
47k
47k
0.1
C714
R77
IC71
R708
R702
C5
2K
C71
560p
LC72725NM-X
47k
R757
10k
R756
47k
C8
0.1
47k
0.1
SW-FLAG
0.01
C78
0.01
C76
1K
R701
C72
330P
C75
FSU
RDSDA
RDSCL
2.2k
2K
10/16
R73
R75
C73
R71
2.2K
R72
0
R76
QAX0263-001Z
X71
C74
33P
33P
10K
SSTOP
47k
R755
R754
!
MN101C49KST
10k
10k
10k
R711
R709
R713
C706
1K
4.7k
R714
R712
R707
R710
4.7k
4.7k
SSTOP
47/6.3
0
IC701
0.1
0.1
C705
QAX0667-001Z
MSW
C77
R716
R765
TUSDA
LM
47k
X701
R74
NPWDOWN
0
R4
10K
C4
0.1
TUSCL
100
IC771
BR24L16F-W-X
270
270
R772
R771
ERDI
ERCLK
MUTE
CDON
QAX0401-001
X702
27p
C703
R717
C2
0
C704
47/6.3
0.047
27p
C771
C1
C3
0.1
220/10
0
R78
I/O
ERDI
ERCLK
10k
10k
R752
R753
TP3
R718
TP4
2.2k
R723
R722
10K
2.2k
10K
R720
R724
D3
MUTE
R725
R3
3.3K
Q_OUT
10k
R727
10k
R721
R719
C81
0.012
C781
TU_L
TU_R
C85
0.22
10k
R726
220/10
1/50
C92
C82
1/50
C91
0.012
AFS
Q74
Q781
RT1P141C-X
1SS355W-X
D781
C7
TP2
R728
47k
47k
47k
47k
R9
R81
RT1N141C-X
2.2/50
C782
0.1
0.1
4.7K
C6
R749
10k
R744
R742
2.7K
10k
R740
R738
47k
R735
R
2.2k
R733
2.
R729
C708
0.1
1
C719
220/6.3
2-21
27p
Q_OUT
KEY0
KEY1
KEY2
C701
27p
FSU
C702
LCDDA
LCDCLK
SO
SI
SCK
ENC1
ENC2
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
Page 23
QAM0682-001
CN761
QGA2006F1-02
1/50
C92
L
R
C82
1/50
C91
0.012
Q74
Q781
RT1P141C-X
1SS355W-X
D781
TP2
R728
47k
6
47k
47k
47k
R81
AFS
2.2/50
C782
0.1 RT1N141C-X
0.1
C7
C6
10k
R744
R742
2.7K
10k
R740
R738
47k
R735
2.2k
R733
R729
C708
0.1
R91
15K
D782
UDZW11B-X
4.7K
R749
R736
R734
2.2k
10k
C719
220/6.3
15K
6.8K
6.8K
R92
R82
Q782
RT1P141C-X
4.7K
R750
R748
R747
R746
R745
100k
100K
R741
47k
2.7K
R737
47k
22K
10k
R730
L701
4.7u
C709
220/6.3
C93
220
220
220
220
R743
STEERING
4.7K
R751
VSCL
VSDA
TUSCL
TUSDA
MCLK
STAT
MDATA
MLD
DIMOUT
SW1
DETACH
R739
LCDCE
RDSCL
IRQ
PS2
INT
REMOCON
100K
R731
TP5
0.1
C710
C718
100P
D722
R172
4.7k
R171
39k
C175
R161
39k
R162
4.7k
2SA1530A/QR/-X
Q912
RT1N141C-X
1K
R906
1K
R905
C166
0.0047
C176
0.0047
Q911
UDZW6.2B-X
2.2k
R173
0.1
C177
4.7/25
C167
C168
0.1
2.2k
R163
27K
R912
D903
1SS355W-X
C903
C178
4.7/25
22/16
1/50
C94
1/50
C84
C83
8.2
R1
R2
8.2
STEERING
R310
47K
100
R311
CD_L
CH_L
C189
0.01
100/10
C188
C160
R892
1SS355W-X
D775
47k
C775
10/16
R891
1k
D891
Q891
C891
RT1N141C-X
QSW1049-001Z
100
R777
D776
0.01
47/6.3
C776
CH_R
CD_R
VSCL
PSW
VSDA
SW2
PS2
47k
R732
TP6
POWER
CDON
47p
C707
TP1
47k
R775
1/50
C162
1SS355W-X
0.1
S775
UDZW5.6B-X
S-80833CNNB-G-W
1/50
C172
C163
D892
1SS355W-X
IC775
C173
22/16
C174
22/16
C164
C165
470p 0.15
0.15 470p
R776
2.2k
12K
R911
0.01
C910
C169
C179
4.7/25
4.7/25
100/10
C909
22/16
C904
30k
R175
30k
R165
22/16
C905
RLO
R901R903
10/16
C915
D351
C783
D341
1SS355W-X
RRO
30k
R176
30k
R166
9.1k4.7k
C916
CH_L
2.2/50
100/6.3
C919
CH_R
1SS355W-X
0.082
J801
QNZ0095-001
NJW1192V-X
IC171
1k
R902
0.01
100/10
C907
C908
RRO
C911
R351
820
R355
2.2K
R345
2.2K
R341
820
C802
0.01
47k
RLO
R191
4.7/25
C191
R181
47k
C181
4.7/25
0.1
Q351
KTD1304-X
Q341
KTD1304-X
47K
R802
QFV91HJ-474Z
C193
C192
QFV91HJ-474Z
QFV91HJ-474Z
C182
R183
QFV91HJ-474Z
C183
R305
0
C318
1/50
IC901
AN80T71
R352
100
R342
100
R805
100K
R804
22K
R803
100
R193
0
C312
C313
R192
0
R182
0
C314C315
0
R307
7.5K
C304
0.022
0.022
C303
CRS03-W
D971
C902
0.01
C901
QEZ0769-278
D901
1N5401-F64
L901
QQR0703-001
!
C351
100P
C341
100P
SN74AHCT126PW-X
100P
100P
C311
1/50
C319
0.022
100P100P
C309
100/16
C322
R324
0.01
2.2
C324
0.1
R323
2.2
C323
0.1
!
R326
C326
2.2
R325
0.1
C325
0.1
2.2
RF+
RR+
LR+
LF+
RF-
RR-
LR-
LF-
IC801
LR+
RF+
R306
4.7/25
D972
LR-
C321
QFV91HJ-474Z
C316
0.1
RF-
R303
R302
C971
10k
R806
B315
LF+
LF-
C308
0.1
C307
0.1
AGND
C310
10/16
0.1
C305
RR+
C302
1k
47K
CRS03-W
R971
0.1
CN901
QNZ0611-001
J321
QNN0773-001
SI
SO
I/O
R807
100K
INT
330
SCK
R808
R809
22k
R810
100
C801
0.047
R801
47k
!
IC301
LA47201
0
C317
1/50
C320
0.022
C306
0.1
RR-
1k
R301
2.7k
Q301
2SC3928A/QR/-X
R304
D301
UDZS3.3B-X
QMFZ047-150-T
!
4.7k
C301
1/50
2.2K
2.2K
R972
parts.
make
e.
2-22
Page 24
CD servo control section (for KD-G427)
5
5
6
0
QGZ2512M1 10
FEEDFEED+
PSW
SPINDLESPINDLE+
SW1
SW2
TRACKING-
TRACKING+
FOCUS+
FOCUSLD
GND
MD
VR
VF1
VREF
VT1
GND
VT2
VCC
VF2
GND
FEED-
VF2
FEED+
RFVDD
GND
VT2
SW1
VT1
SW2
VF1
PSW
VR
SPINDLELD
SPINDLE+
FOCUS-
VREF
FOCUS+
MD
TRACKING+
TRACKING-
CN501
QGB2027M4-22S
R565
CN503
QGZ2512M1-08
VREF
3300p
150
R543
1K
R544
1K
Q521
47/6.3
R554
4.7
2SA1530A/QR/-X
C537
47K
C533
R556
47/6.3
C527
8200P
R545
R548
C553
CN502
R
3
39K
4.7k
C
5
R541
R542
180P
C528
C554
8200P
3.3K
3.3K
2-23
Page 25
R541
QGZ2512M1-10
39K
CN502
D501
1A3G-T1
820p
C583
15k
QTE1H54-225Z
QTE1H54-225Z
R584
15k
C584
IC581
NJM4565E-X
C585
C586
820p
R585 C587
10K
R587
R588
R586
10K
100P
30K
30K
C588
100P
R590
1.5K
100k100k
10k
R593R594
R592
C590
QTE0J57-476Z
C591
QTE1A57-107Z
0.1
10k
R591
C592
R589R583
1.5K
3.3K
3.3K
P
8
200P
C554
R540
30K
C524
560P
C535
0.33
C532
0.33
0.1
R539
R538
C531
C525
0.022
C526
0.022
C536
47/6.3
0.1
100/6.3
C983
C984
0.1
C534
0.0033
C552
47/6.3
C551
100p
C523
1.5M
R537
0
0
IC521
MN6627945EE
C539
0.1
C540
680p
C541
0.015
C542
ARF
0.1
C543
1000p
C544
0.082
C546
R558
R559
220/6.3
82k
47/6.3
820
C547
C548
47/6.3
0.1
C549
0.1
C545
C538
47/6.3
R535
10K
C521
R533
R534
NJU7772F15-X
27k
68k
0.1
R523
0.22
C522
1K
R525
1K
R526
2.2k
R527
2.2k
R528
2.2k
R529
4.7k
R530
R531
4.7k
R532
4.7k
4.7k
IC981
X521
QAX0714-001Z
R521
1M
R522
220
R524
2.2K
C982
C981
100/6.3
0.1
1k
1k
R562
SN74LVC2G07V-X
IC523
R561
10
R566
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-24
Page 26
Function section (for KD-G427)
R
5
R518
1
5.6K
2-25
Page 27
CN503
QGZ2512M1-10
C509
0.047
C510
0.047
0.047
C508
0.1
C502
7.5k
R568
47k
R519
R569
11k
R509
100K
R515
15k
R518
R517
15k
5.6K
LA6242H-X
C517
R513
5.6k
R514
IC501
R510
27K
0.0018
10k
C513
!
3.3K
6800p
C501
R508
R503
220/6.3
R502
2SA1705/ST/-T
5.1k
8.2k
C507
0.1
C514
0.1
Q501
C512
R500
R520
0.1
22
C518
68p
22
R501
8.2k
C503
0.1
220/10
C504
R505
11k
30k
R506
C506
C505
47/16
0.01
C515
R507
0.0012
15k
C511
R516
R511
2200p
1K
15K
R512
5.6K
CN502
QGZ2512M1-08
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-262-232-24
Page 28
LCD & Key control section (for KD-G427)
COM1
LCD1
QLD0387-001
S601
S618
R605
R610
S612
R615
S2
S3
S4
S5
S6
S1
R602R603R604
R601
8202.7k
8201.2k1.8k
S602
2.7k
S608S609
S615
S617
S611
R614
S610
R613 R612
1.2k 820
S616
KEY0
S606
S605S604S603
820
R606R607R609 R608
8208201.8k 1.2k
KEY1
S607
R611
KEY2
8201.8k2.7k
S613
S614
GND
R630
D630
SML-310LT/MN/-X
R631
S9
S7
S8
D635
D631
470
R633
R632
S15
S17
S13
S14
S10
470
S16
S11
S12
D636
D633
D637
330
R635
R634
R636
D632
D634
S23
S24
S19
S18
S25
S20
S26
S21
S22
D644
D645
R638
470
R637
S32
S31
S27
S28
S29
330
R639
S35
S30
S33
S34
S36
D640
D643
D639
D642
D638
D641
R640
330
R641
R642
S42
S38
S43
S40
S41
S37
S39
D647
D648
D646
330
R644
R645
R643
S49
S44
S45
S46
D650
D651
470
R646
S52
S48
S51
S47
S50
COM2
COM3
2-27
Page 29
IC681
S49
RPM7338-V4
C682
D681
0.012
UDZW6.2B-X
C681
R682
S52
S51
S50
COM1
COM2
COM3
S49
LCDCE
LCDCLK
LCDDA
C663
0.022
R666
R667
R668
S50
S51
S52
COM1
COM2
COM3
10K
10K
10K
R661
2.2K
R662
R663
180K
10/6.3
2.2K
D661
C661
10K
R664
1SS355W-X
C662
680p
D662
UDZW5.1B-X
51K
R665
D652
NSPW310BS/BRST/
390
R649
D653
NSPW310BS/BRST/
390
R650
R670
470
Q670
2SA1365/F/-X
R672
R671
1K
Q671
RT1N141C-X
47K
DIMOUT
4.7/6.3
10K
470
R681
S46
S48
S47
S45
S44
S43
S42
INH
OSC
CE
CLK
DATA
IC661
PT6523LQ-L
S1
C686
0.022
S41
S39
S40
S38
S37
S34
S36
S35
S14
S13
S12
S11
S10S9S8S7S6S5S4S3S2
JS686
QSW0976-001
100
R686
C687
0.022
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
CJ601
QGZ1601K1-15S
ILL10V
ACC5V
REMOCON
ENC1
ENC2
DIMOUT
LCDCLK
LCDDA
LCDCE
KEY0
KEY1
KEY2
2-28
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