Page 1
Block diagram
KW-XC828
J1
INLF
INLR
INRF
INRR
IC901
POWER
AMP
OUTLF+
OUTLFOUTRF+
OUTRFOUTLR+
OUTLROUTRR+
OUOTRR-
ANT CONT
VOLDA
VOLCL
OUTLF
OUTRF
OUTFR
OUTRR
FRONTL
REARL
FRONTR
REARR
IC911
REGULATOR
CH.L
CH.R
ANT
5
SEL
TEB
RFGC
TE,FE
RFDC
RF
RFRP
FMO
DMO
TRO
FOO
RWSEL
IOP
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
DSPRST
LOAD
LD/FE
CDON
IC571
24bit DAC
DACML
DACMC
DACMD
DACCS
DSPRST
IC501
CPU
VA,VB
VE,VF
MD,LD
4
REST
REST
SWITCH
IC601
CD RF
IC621
D.SERVO
DSP
LOAD/FEED
MOTOR
SPINDLE
MOTOR
SW1,SW2
3
PICKUP
LOAD/FEED+
LOAD/FEED-
SPINDLE+
SPINDLE-
SW1,SW2
A,B,E,F
VR,MD,LD
FOCUS+
FOCUSTRACKING+
TRACKING-
CN601
LOAD/FEED+
LOAD/FEEDSPINDLE+
SPINDLETRACKING+
TRACKINGFOCUS+
FOCUS-
IC681
CD DRIVER
SW1,SW2,RESET
SDO
LRCK
BCK
BCK
LRCK
DATA
MP3RST
MP3DA
PM3CK
/BUSIO
BUSIO
BUSSI
BUSSO
BUSSCK
VOUTL
VOUTR
IC653
SRAM
IC652
MP3 DEC
DISCSEL
CDMUTE
CDREQ
B.DET
P.DET
IC503
J-BUS
BUFF
IC572
CD LPF
CD.L-CH
CD.R-CH
IO0~IO7
AD0~AD16
OE,CE,WR
BUSSI/SO
BUSCLK
CN601
CN501
FM/AMOSC
CD.L-CH
CD.R-CH
TAPE Lch
TAPE Rch
CH Lch
CH Rch
CDMUTE
CDREQ
CDRESET
B.DET
P.DET
BUSSI/SO
BUSCLK
DISCSEL
AUX.L
AUX.R
PLLCE
PLLDA
PLLCL
PLLDI
TU1
FM/AM
TUNER
SEEK/STOP
IC21
PLL
TU.L,TU.R
SD/ST
FM/AM
MONO
S.METER
IC951
E.VOL
IC701
CPU
SO,SI
I/O
BUSINT
BUSSCK
LCD
2
COM1~COM8
SEG1~SEG75
KEY0~KEY2
S601~S617
KEY
MATRIX
MMAIN MOTOR
SUB MOTOR
1
M
HEAD
1~4
CN403
CJ402
IC401
HEAD
AMP
IC501
LCD
DRIVER
IC502
REMOCON
TAPE IN,MOTOR
STANBY,REEL
FFREW
HEADSEL
DOLBY
MSIN
SCK
DATA
REMOCON
SUBMO
IC431
CPU
IC461
BUFFER
JP501
AUX IN
IC402
MOTOR
DRIVER
BUSSO
BUSSI
BUSSCK
BUSI/O
BUSINT
L-CH,R-CH
8V
PREQ
SI/SO
RESET
CN501
CN972
CN401
CN701
LCDCE,LCSCK
KEY0,KEY1,KEY3
BLED-CONT
I/O,LCD DATA
CHANGER
CONTROL
CN702
CN973
J801
BUS_SCK
SO,SI
IC761
JVC BUS
SI/SO
SCK
REQ
SCK
MOUT
ROUT
SI/SO
TAPE Lch
TAPE Rch
CH-Lch
CH-Rch
CN951
LINE OUT
CN911
SPK
BATT
ABCD E F G
2-1
Page 2
KW-XC828KW-XC828
Standard schematic diagrams
Receiver & System control section
TU1
QAU0258-001
C281
4.7/25
C181
4.7/25
2.2k
2.2k
2.2k
1k
1k
1k
1k
1k
47k
1k
10k
10k
10k
10K
4.7k
1/50
2.7K
22/6.3
2.7K
1/50
4.7k
0.047
R85
390
R86
IC702
NAD0028-103X
3.3k
3.3k
R722
R723
12K
R142
C82
1k
C707
LCD-CE
LCD-SCK
LCD-DATA
BUS_SCK
B-LED-CONT
S_METER
KEY3
KEY2
KEY1
3.3k
R724
C291
1/50
C242
1/50
C142
1/50
C191
1/50
12K
CRS03-W
D84
R242
D83
1SS355-X
D82
1SS355-X
C83
22/16
C708
0.01
I/O
SO
SI
10/16
100/10
C952
C953
C956
270k
0.22/50
R87
C84
C709
0.01
ACC5V
L701
47u
AJ
CD8V
L702
100u
ILL
220/10
220/10
C714
47/6.3
C715
0.01
C930
C920
ON5V
TEL
Q920
UN2211-X
IC951
M61508FP-X
2.2/50
2.2/50
C247
C246
2.2/50
2.2/50
C146
C147
47k
R929
0.1
C926
R928
10k
CRS03-W
0.1
D933
C931
D914
R971
Q914
2SB709A/QR/-X
2.2/50
C248
C249
2.2/50
47k
R208
C148
2.2/50
C149
2.2/50
47k
1/50
C951
UDZ11B-X
CRS03-W
10k
D901
D932
R931
1SS355-X
47k
1/50
10/10
R109
R108
C954
C955
Q903
UN2111-X
100/16
100/16
C904
C944
0
0.1
0.1
10/16
220/10
C919
C918
C925
C922
5.6k
18k
R921
R922
C201
R221
20k
1/50
C202
R222
20k
1/50
47k
R209
C101
R121
20k
1/50
C102
R122
20k
1/50
1k
R904
D902
1SS355-X
Q901
C990
0.1
C927
UN2211-X
0.01
IC911
HA13164A
R926
15k
47k
0.01
3.3k
4.7k
22/16
22/16
22/16
R927
C915
C916
C917
C928
R923
R918
47k
Q911
UN2211-X
R915
R917
4.7k
C921
22/16
330P
C203
27k
27k
4.7/25
C905
R902
R903
D913
CRS03-W
D912
CRS03-W
R913R914
1k9.1k
2.2/50
C914
100k
0.1
C923
R916
330P
C204
2SD1048/6-7/-X
Q101
0.1
C913
IC901
LA4743K
330P
330P
0.01
C901
D201
R134
2SD1048/6-7/-X
Q102
100
3.3K
Q202
2SD1048
MA152WA-X
R234
3.3K
100
R162
QMFZ047-150-T
C902
47/16
C906
22/16
1k
1k
R232
R132
C911
2200/16
D911
1N5404-TU-15
100
R262
L911
QQR0703-001
C991
C992
C993
C994
C995
C996
C997
C998
C981
C982
C983
C984
100P
100P
100P
100P
100P
100P
100P
100P
0.1
0.1
0.1
0.1
CN911
QNZ0002-001
C103
C104
D101
MA152WA-X
1k
1k
R233
R133
3.3K
3.3k
R131
R231
Q201
2SD1048
2.2k
2.2k
R161
R261
100
R912
R911
C232
0.047
C131
0.047
QNN0175-001
CN951
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
Tuner signal
CN706
0.01
1SS355-X
47k
C792
D791
R791
C793
CD signal
Cassette signal
AUX IN signal
Front signal
CH-Rch
R291
C272
TAPE-Rch
CD-Rch
R241
D81
MA152WK-X
SD/ST
R739
1k
R740
10k
R714
R718
R717
R716
R715
KEY0
TU-Rch
AUXR
100k100k
R281R181
AUXG
C182
AUXL
TU-Lch
CD-Lch
R141
C172
TAPE-Lch
CH-Lch
R191
R84
12k
R82
180k
C81
1/50
47k
R83
22k
Q81
R81
2SD601A/RS/-X
47k
R736
R735
R734
R733
R732
R731
R730
R729
R728
R727
R726
R746
TH745
R725
R721
R720
R719
R745
3.3k
47k
47k
47k
47/6.3
2.2k
C791
R792
IC791
IC-PST9333U-X
IC21
TB2118F-X
LCD-CE
LCD-SCK
LCD-DATA
J1
QNB0100-002
J1
X21
QAX0616-001Z
R23
6.8K
C22
AUXL
AUXG
AUXR
KEY0
KEY1
KEY2
KEY3
ON5V
LRST
ACC5V
L1
4.7u
1SS355-X
1SS355-X
D1
R31
100
C36
0.001
C33
10P
R30
0.01
C32
10/16
C30
C31
0.047
C26
0.01
C25
0.01
22
R21
C21
220/10
0
R22
22/16
IFC
AJ
ILL
C929
L782
SI/SO
SCK
C782
1.8u
C781
L781
R782
1.8u
100
47k
R783
0.01
D2
C1
C37
0.001
Q2
2SB815/7/-X
10k
39k
R4
10k
R29
0.0027
C28
0.01
C29
0.047
R781
22k
C38
0.047
Q918
UN2111-X
0.01
D3
C27
R5
2.2k
10
R8
R925
27K
B-LED-CONT
Q919
UN2211-X
47k
100k
22k
R776
R775
R774
100
R777
R779
330
10k
R780
C771
220/10
C9
MA152WK-X
R784
22k
IC761
0.022
Q3
2SB815/7/-X
L21
47u
SI
SO
I/O
100k
R778
HD74HC126FP-X
C11
R7
0.01
C4
1k
Q4
UN2211-X
100
10k
10k
R1
R2
R9
S_METER
SEEK
FM/AM
C212
4.7/25
C112
R6
10k
4.7/25
0.018
0.018
C111
C211
R752
CMU
1k
47k
R753
R754
1k
0.01
C710
CRS
R759
R764
R766
R765
47k
R767
47k
R768
R769
47k
MOUT
R771
ROUT
R772
R773
BUS_SCK
UN2211-X
Q1
22k
0.01
330P
C8
R3
R10
220
C13
Q5
UN2211-X
R211
4.7k
R111
4.7k
1SS355-X
1SS355-X
1k
1k
10K
47K
R786
C6
C5
SD/ST
470
47P
12k
12k
R215
R115
D91
D92
47k
0.1/50
MONO
R11
IFC
C12
100P
C214
4.7/25
C114
4.7/25
680P
680P
C213
C113
TU-Lch
TU-Rch
Q91
UN2111-X
D90
1SS355-X
C91
47/6.3
TEL
LRST
VOLSCK
1k
1k1k2.2k
R744
R741
R742
R743
IC701
UPD784215AGC173
1k
R704
0.01
R705
220/10
C702
C701
C703
1k
R708
R707
10M
47k
820
R706
8P
27P
22P
27P
C705
C706
C704
X702X701
QAX0401-001QAX0617-001Z
R147
120k
R247
120k
PLLCE
PLLDA
PLLCL
PLLDI
1K
1k
1k1k1k
R710
R709
R711
R713
R712
REQ
CDREQ
Q701
UN2213-X
5
0
7P10P
B24
C35C34
0.001
C24
2.2k
R28
PLLCE
R27
2.2k
PLLDA
2.2k
R26
PLLCL
R25
4
TAPE-Lch
TAPE-Rch
VDD5V
CH-Lch
GNDM
CH-Rch
CD-Lch
CD-Rch
9V
CD8V
3
REQ
MOUT
ROUT
SCK
SI/SO
CMU
CDREQ
CRS
14V
PS2
MEMORY
CN701
QGB1004K1-20
2
2.2k
PLLDI
SEEK
ANT
MONO
FM/AM
R182
1k
R282
1k
47P
4.7k
10k
10k
C39
0.047
0.01
R24
R33
R32
C23
C20
D182
D181
L999
47
D921
UDZS6.2B-X
1
2-2
Rear signal
CD Changer signal
HABC DEFG
Page 3
LCD driver & Operation switch section
KW-XC828
CN972
1.2k
R591
1.8k
S525
NSW0041-001X
QGF1016F3-15
S526
NSW0041-001X
R598
1.8k
R592
3k
R975
R593
5.6k
S527 S528
NSW0041-001X
R599
3k
NSW0066-001X
270
NSW0041-001X
S537
NSW0041-001X
CN971
QNZ0095-001
270
R974
0.1
C974
D575D576
D581
D569
D571
D573
D574
D570
D572
560
560
560
560
560
560
560
560
R572
R571
R574
R570
R569
R573
R576
R575
D582
820
820
820
820
820
R582
R581
R584
R583
R585
5
4
R587
R588
R589
NSW0041-001X
S523
820
R590
S524
NSW0041-001X
IC502
RPM6938-SV4
R509
10K
R508
3
47
C509
R510
4.7/6.3
WR502
NSW0066-001X
S520
WR501
680
S522
NSW0041-001X
680
CN973
QGF1016F3-21
D583
820
R586
CN702
QGF1016F3-21
CN601
QGB2027M4-22S
47u
L942
L941
10u
TAPE-Lch
GND
TAPE-Rch
VDD5V
CH-Lch
GNDM
CH-Rch
0.01
C941
C942
L804
B801
0
L801
CRS03
D801
L802
0.01
220/10
C804
C805
UN2211-X
47u
47u
Q943
UN2213-X
L803
10u
Q804
Q801
UN2211-X
0.01
C801
Q802S536
UN2213-X
0.01
C802
Q803
UN2213-X
0.01
C803
UN2211-X
UN2211-X
Q805
Q941
0.01
CD-Lch
CD-Rch
9V
CD8V
REQ
MOUT
ROUT
SCK
SI/SO
CMU
CDREQ
CRS
ON5V
14V
PS2
MEMORY
WR501WR502
S521
NSW0066-001X
R595
R594
680
R512
R511
47k
PJ501
QNS0180-001
2
QGB1004J1-20X
R501
R520
D520
MA152WK-X
D521
R521
1.2k
R522
470
SML-310LT/MN/-X
1.2k
R523
470
D522
820
R524
CN501
1
47k
0.0047
D524
820
820
820
R526
R525
0.0047
R513
C511
C512
470
C513
0.047
D533D534
D535D536
D537
D525
D529
D527
D531D532
D526
D528
D530
560
560
560
560
560
560
560
560
560
560
R536
R535
R531
R528
R527
R529
R530
R532
R533
R534
D561
D562
D538
560
560
560
560
560
560
R561
R562
R538
R537
R540
R539
NSW0066-001X
NSW0066-001X
NSW0066-001X
R517
22K
Q501
2SB815
220
R515
220
R516
D541
D542
NSPW310BS/BRS/
470
470
R542
R541
R543
680
S531
S532
NSW0066-001X
NSW0066-001X
R552 R553 R554
R551
620 820 1.2k
620
S502 S503 S504 S505
S501
NSW0066-001X
NSW0066-001X
R556
R555
620
620
S511
S512
NSW0066-001X
NSW0066-001X
D543
NSPW310BS/BRS/
NSPW310BS/BRS/
470
470
470
470
R545
R544
R546
R597
R596
1.2k820
S535
S534
S533
NSW0066-001X
NSW0066-001X
COM8
COM7
NSW0066-001X
NSW0066-001X
R518
UDZS9.1B-X
D501
2.2K
C502
C598
C599
C501
10/10
S513
COM6 SEG48
COM5
COM4
COM3
COM2
Q502
DTC114EKA
COM1
R503
0
C506
0.047
0.1
0.1
0.1
82k
C503
C505
R502
C507
C504
10/10
680P
SEG75
SEG73
SEG72
SEG71
SEG70
SEG69
SEG68
SEG67
SEG66
SEG65
SEG64
SEG63
SEG62
SEG61
SEG60
SEG59
SEG58
SEG57
SEG56
SEG55
SEG54
SEG51
SEG52
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG53
SEG23
SEG24
SEG25
SEG50
SEG49
SEG47
SEG46
SEG45
SEG44
SEG43
SEG42
SEG41
SEG40
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG2
SEG75
SEG5
LCD1
QLD0229-001
SEG74
SEG7
SEG73
SEG9
SEG72
SEG13
SEG71
SEG14
SEG70
SEG15
SEG68
SEG18
SEG69
SEG19
SEG1
SEG22
SEG23
SEG26
SEG27
SEG30
SEG31
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
SEG40
SEG42
SEG45
SEG47
SEG48
SEG49
SEG50
SEG51
SEG53
SEG54
SEG55
SEG56
SEG57
SEG58
SEG59
SEG60
SEG61
SEG62
SEG63
SEG64
SEG65
SEG66
SEG67
SEG3
SEG4
SEG6
SEG8
SEG10
SEG11
SEG12
SEG16
SEG17
SEG20
SEG21
SEG24
SEG25
SEG28
SEG29
SEG32
SEG41
SEG43
SEG44
SEG46
SEG52
COM8
COM7
COM6
COM5
COM4
COM3
COM2
COM1
SEG74
IC501
LC75878W
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG2
SEG1
SEG16
AUX IN signal
CD Changer signal
ABCD E F G
2-3
Page 4
Mecha control circuit section
KW-XC828KW-XC828
IC402
LB1641
5
CN403
QGF1219F1-10
Q403
2SB1322/RS/-T
47k
R423
3.3k
R422
DSK10C-T1
R446
0.01
R448
Q432
2SD601A/QR/-X
47k
R445
C439
0.01
R421
0
L421
D402
47k
R401
680
4
R417
10k
C419
Q401
R414
1.5M
C422
R416
3.9k
0.47/50
C421
R415
R420
120k
0.1
22k
0.01
L431
47k
R447
C438
4.7
R418
C416
15k
0.1
0.1
220P
C418
R412
100
VR402
18k
C417
R413
R411 R410R408
C411
0.015
C408
3
CJ402
QGA2001C1-06
C401
100P
R402
100k
C402
100P
R403
100k
C403
100P
R404
100k
C404
100P
R405
100k
C409
22/16
C407
C406
C405
100P 100P
100P
100P
R407
R406
180
180
C410
0.015
2
R409
VR401
C413
IC401
CXA2560Q
C412
C414
0.1
0.1
QVP0009-333Z QVP0009-333Z
22/16
R439
R438
R437
Q402
DTC114EKA-X
47K
47K
47K
R483
R481
R435
R433
R431
47k
0.01
C437
R444
IC431
UPD789166GB-590
47k
47k
47k
47k
R432
C491
100P
QAX0414-001Z
R436
R434
22P
C436
X431
R482
22P
C435
47k
R484
0.01
C434
IC432
IC-PST9333U-X
MA8047/H/-X
D401
R450
47K
R449
10K
C433
47/6.3
R424
2.2k
R443
2.2K
R442
R441
R440
C425
0.01
C424
0.1
68
R425
68
R426
C423
10/16
C461
0.01
R466
100k
R465
C432
0.01
C431
47/6.3
47k
47k
47k
R461
22k
22k
R464
100k
R462 R463
100
330k
IC461
HD74HC126FP-X
R468
10k
R467
330
22k
R469R471
R470
100
330k
Q431
DTC114EKA-X
1
CN401
QGF1016C1-15
Cassette signal
2-4
HABC DEFG
Page 5
CD servo control section
KW-XC828
RWSEL
RF
R613
C611
68P
1k
R612R614
C610
2k15k
RFGC
R610R611
10010k
0.1
C609
5P
C608
FE
RFRP
C606
C607R630
0.01
47/6.3
0.1
56k
R609
5
IC601
TA2157FN
R601
VB
VA
VF
VE
MD
C612
0.01
C613
0.01
CN601
QGF0526F1-22X
4
3
R615
FOCUS-
FOCUS+
TRACKING+
TRACKING-
SPINDLE+
SPINDLE-
LOAD/FEED+
LOAD/FEED-
LD
VA
IOP
VF
C614
0.01
VE
VREF
VB
MD
150
LD
REST
SW2
SW1
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
DSPRST
L623
47u
82k
R602
82k
R603
330k
R604
330k
C603
100/6.3
22
22
R605
R606
47/6.3
0.01
C601
C602
L622
47u
C643
0.01
4.7k
4.7k
4.7k
4.7k
10k
IC621
R638
R639
R640
TC94A14FA
R641
R642
0.33
47/6.3
0.01
C645
C646
C644
Q601
10k
R616
2SB1132/QR/
C604
0.01
0.01
47/6.3
100P
C640
C641
C642
1M
R637
474747
R621
R622
R623
BCK
LRCK
DATA
R607
82k
SEL
TEB
RFDC
TE
C605
R608
820
0.0068
FOO
TRO
FMO
DMO
C639
47/6.3
100
100
R635
R636
0.01
47u
L621
C621
C637
VREF
C638
0.01
R631
0.047
C636
0.047
C632
470P
C631
470P
R634
R633
R632
100
100
R624
5.6k
C622
47/6.3
0
0
0
0.047
0.047
C635
C634
C630
0.033
R629 C629
10k
C627
C626
C625
R628
2.2M
R626
R625
47P
C623
0.047
C633
SEL
TEB
RFGC
TE
RFDC
FE
RFRP
0.033
RF
0.01
0.0027
0.01
C624
0.015
10k
R627
470k
47k
1000P
1000P
C598
C597
C628
47/6.3
47u
L652
DACML
DACMC
DACMD
DACCS
0.1
DSPRST
C579
10/16
C580
R572
R573
47k
47k
IC571
PCM1716E
47NAX0375-001X
R574
X571
C573
10/16
0.1
C574
C575
LRCK
SDO
BCK
10P
C571
C662
0R0
R668
470k
470k
470k
470k
470k
IC652
IO2
IO3
IO4
IO5
IO6
IO7
C665
R675
0.33
C664
C666
C667
C668
47/6.3
C669
TC94A02F-005
R673
R672
R671
R670
R669
R674
330
0.027
100P
0.01
R677
0.01
IC651
NJU7241F25
L651
C651
C652
0.01
47/6.3
47/6.3
10P
C572
100P
470k
R667
470k
R666
470k
R665
470k
R664
C663
0.1
330
1M
R653 R658
R652
R651
47u
C653
47/6.3
C510
1000P
0.1
C578
C577
47/6.3
47u
47u
0.1
L571
L572
C576
IO0
IO1
AD14WRAD16
AD15
470k 470k
470k
100k
0.1
MP3RST
C654
0.01
C655
MP3DA
MP3CK
AD0
AD1
AD2
100P 100P
C582 C581
AD13
4700
R654
AD3
SDO
C585
R581
20k
4.7/35
820P820P
C583C584
C586
R582
20k
4.7/35
C661
0.01
AD9
AD8
AD7
AD6
AD10
R661
R662
R663
0
R659
R655
R656
R657
CE
AD5
AD4
DATA
BCK
LRCK
L501
30k
R585
R583
12k
R584
30k
R586
470k
470k
C660
470k
100P
C659
0.1
AD11
AD12
C658
0.1
C657
0.1
C656
0.1
470k
R660
470k
47u
C589
C587
4.7/35
120P
12k
10k10k
C592
47/6.3
R592
IC572
NJM4565V
47k 47k
C588
120P
OE
R588 R587
C590
4.7/35
C593
47/16
W24L010AJ-12
AD16
AD14
AD12
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
IO0
IO1
IO2
47/6.3
R590
C591
Q571
UN2111
Q572
UN2211
C594
100P
C673
0.1
C672
47/6.3
C671
IC653
CD.L-CH
10k 10k
R591 R589
9V
CD.R-CH
ON5V
CDON
AGND
100P
1000P
0.047
4.7
C596
C595
R593
AD15
WR
AD13
AD8
AD9
47u
AD11
OE
AD10
L653
CE
IO7
IO6
IO5
IO4
IO3
SW1
47k
VREF
2
C688
0.047
LOAD/FEED+
LOAD/FEEDSPINDLE+
SPINDLE-
C687
0.047
C686
0.047
TRACKINGTRACKING+
FOCUS+
FOCUS-
C685
0.047
0
R687
30k
1
22k
R688
R689
C684
47/16
LOAD
6.8k
R681
IC681
LA6579H
R686
8.2k
2SB1184/QR/
R682
6.8k
R683
FMO
4.7k
LD/FE
CDON
R684
DMO
15k
R685
33k
FOO
C690
10/6.3
C682
10/16
Q681
B681
D682
0.1
C683
0
1SR154-400
C689
47/16
C503
0.01
100/6.3
C504
C505
C506
C507
470P
R538
47k
R537
Q501
C502
UN2111
0.01
R540
47k
P.DET
NAX0430-001X
27P 0
X501
22P
R545
IOPTRO
IC502
BR24C01AFV-W
10k
R546
R547
R548
R549
R550
C508
0.01
CDRESET
R536
R535
R534
R533
C509
R539
1k
R541
1k
R542
100
R543
100k
4.7k
4.7k
4.7k
4.7k
R501
ABCD E F G
NAD0022-103X
R502
270
SW2
REST
8VDET
100k
47k
1k
47k
47k
47k
0.01
8.2k
TH501
47k
47k
R530
R531
C501
0.01
DISCSEL
R527
R528
100
R567
10k
270
/BUSIO
R503
R504
D505
100
R525
100
R524
100
R523
100
R522
1k
BUSIO
BUSSI
BUSSO
BUSSCK
R544
CDON
1SS355
D504
1SS355
D503
D502
1SS355
1SS355
R521
R520
R519
R518
R516
R515
R514
R513
R512
R511
R510
R509
R508
R507
R506
R505
IC501
UPD784225GK-623
DACCS
DACMD
DACMC
DACML
D501
1SS355
100
MP3RSTB.DET
100
MP3CK
100
4.7k
R517
MP3DA
100
100
LD/FE
100
LOAD
RWSEL
1k
BUS0
100
BUS1
100
BUS2
100
BUS3
100
BUCK
100
CCE
100
DSPRST
100
CDMUTE
1k
CDREQ
1k
100/6.3
BUSSO
BUSSI
BUSIO
/BUSIO
BUSSCK
0.01
C513
C512
0.1
C511
100k
R561
1k
R568
6.8k
R563
C551
0.01
1k
R569
1k
R570
18k
R553
R554
33k
R562
3.9k
IC503
IC504
HD74HCT126T
R551
NJU7241F33
L502
100
R560
0
R559
100
R555
R552
R558
100k
100k
8VDET
47u
R556
0
R557
100k
D506
CRS03-W
Q502
UN2211
100k
CD.L-CH
AGND
CD.R-CH
9V
ON5V
DISCSEL
CDMUTE
CDREQ
CDRESET
B.DET
P.DET
BUSSI/SO
BUSCLK
CD8V
GND
QGB2027L1-22X
CN501
CD signal
2-5
Page 6
Printed circuit boards
Main board (Reverse side) Main board (Forward side)
5
KW-XC828KW-XC828
IC911
D932
C931
Q911
C919
R914
R915
Q801
C715
R917
C930
Q803
C803
C201
B102
R931
D913
L911
D933
D911
R913
C914
C102
R765
R764
R769
R771
R772
C805
B103
R916
C202
C920
Q805
C905
C906
C902
CN601
D921
CN951
C131
R161
Q101
R131
R133
D101
TU1
L1
D1
D2
Q2
D3
R7
Q3
C11
C27
C4
R29
C26
C23
R9
C5
R2
Q1
C6
Q6
B101
D902
R141
R754
R923
C714
Q914
IC701
R242
C918
R744
C249
R142
X701
C917
C248
C916
R925
C246
R743
IC911
R742
Q918
C953
R704
C929
R927
R736
C172
IC702
C709
C708
R739
R735
R721
R720
R719
C181C182
R726
TH745
R745
R725
R730
R710
R727
R724
R723
R722
CN702
C191
C771
C952
C147
L941
C944
C91
C951
C148
C149
C146
C142
C214
R728
C781
R783
R780
L781
R776
R784
R781
R774
R778
IC761
C114
R775
R779
R777
C915
L942
Q919
C272
C291
C955
C247
C242
IC951
C281
R740
R741
R734
R746
R714
R709
R718
R708
X702
C791
R782
C782
L782
CN951
C904
C9
C21
C22
C32
C29
X21
R32
C112
C212
C6
CN706
J1
J1
TU1
C1
C111
C211
R6
C37
C25
R1
R23
R3
C8
L21
C11
IC21
R33
C922
C927
C202
C101
L911
C919
C914
C201
Q901
C921
R902
R241
C81
C930
R752
R753
R759
C701
C805
R913
C102
L803
C801
B801
L801
CN911
C913
C908
4
C204
R221
IC901
C907
C203
C911
C103
C104
C998
R222
C997
R911
C996
R912
3
L802
B802
2
CN701
L999
R121
C995
D912
R122
C804
C905
C902
L804
C993
C802
C992
D911
C991
C923
C994
R904
R903
C906
C84
L701
Q802
B804
D801
C83
L702
C920
Q804
CN601
C232
R162
R261 R262
Q201
Q102
R132
R134
C904
R231
R233
D201
D90
R8
C9
R21
C24
R4
R5
R12
B24
Q4
C21
R22
C38
C22
C29
C32
R30
C30
C28
R28
R26
R27
R25
R24
C112
R10
C212
R11
C13
C12
R211
Q5
Q7
C792
R731
C793
R733
C147
C181
R791
IC791
Q941
Q701
D791
R792
R147
C172
R181
C954
C706
R926
C182
C915
C917
C928
D914
R971
R922
C926
R929
R928
Q920
C272
C291
C955
C247
D81
R247
C242
C281
R281
C956
C710
C707
R711
R712
R713
R715
C705
R707
X702
C791
C953
R706
R208
R717
C925
R921
C248
R209
C249
C246
D84
R766
R767
R768
R786
R773
R705
X701
C704
C703
C918
C916
D901
D92
C36
R31
R111
C213
R291
Q202
R234
Q91
C31
R109
X21
C35
C33
C34
C39
R115
CN702
R232
R191
Q943
C944
Q903
C990
C91 C101
C951
R108
C149
C146
C113
R215
C114
C941C942
D91
C191
C148
C142
C952
C214
R732
R729
R716
C714
C701
C921
R918
C702
R81
CN701
CN911
C908
C984
C983
C982
C911
C907
C82
R84
R82
C81
Q81
R86
R83
D181
R282
B1
B2
C981
IC901
C901
D83
R85
R87
D82
C83
C84
D182
R182
C974
CN972
CN971
CN973
CN971
R974
R975
CN973
CN972
1
2-6
HABC DEFG
Page 7
KW-XC828
Front board (Forward side)
D522
S533
D561
D521
S511
5
D524
S521
PJ501
S512
D525
D526
S531
D562
IC502
LCD1
D529
D530
D535
D531
D533
S501
D532
S502
D534
S503
S504
D536
D541
D542
D543
S534
D527
4
S513
D528
D574
D583
S536
D582
S528
S532
S520
D581
S537
D569
D570 D571
S526S527
D575
S525
D576
D572 D573
S524
S523
S522
D537
S535
D538
S505
Caseette board (Forward side)
R445
R446
R439
R447
R438
VR402
R444
R436
R481
R483
C438
R437
R431
R433
R435
R432
R434
R421
R482
R469
R471
R470
R484
L421
C461
R468
R411
R466
R410
3
2
C411
C409
IC401
C410
C412
R407
C408
C407
C403
VR401
R404
C405
R406
R405
C404
C406
1
C413
R442
R440
R441
C437
C419
C417
R413
R408
R467
C439
C402
R403
R402
C401
R409
R465
B405
C416
Q432
IC431
R449
C434
C436
C435
IC432
R443
R450
X431
B401
MP3 board (Forward side)
C433
B404
C431
C432
IC402
D401
IC461
R424
C423
R426
R425
Q431
R418
Q401
R417
R420
R461
R462
R463
R464
B402
B403
CN403
R416
C422
C421
R415
R414
C418
D402
Q402
R422
R423
CN401
R412
CJ402
C424
C425
R448
R401
Q403
C491
L431
C414
C573
C576
C571
R564
R566
R567
R517
R519
R520
R521
R522
R523
R524
R525
R526 R527
R534
R535
R528R529
R531R532
C572
R565
R571
R574
C676
C675
R677
R666
C667
R669
IC653
C666
R676
R668
R667
R675
TH501
R673
C664
C663
R674
C665
R672
R612
R670
R671
C610
C609
R623
R621
R622
R626
C644
R642
R640
R641
C621
R627
R625
C646
R624
R628
C602
R639
R615
R604
R614
C625
R638
R601
R635
R636
C627
C626
C636
R602
R608
R607
C643
R603
C608
C642
R629
R609
C640
C614
C632
C631
R605
R606
C637
C611
R616
C605
R637
C638
R613
R611
R630
R631
R632
R610
R634
R633
ABC
2-7
Page 8
KW-XC828
5
Front board (Reverse side)
R581
R582
R556
R595
WR501
R529
R530
R599
R598
R592
R569
R570
R591
R590
R589
R571
R575
R572
R576
R588
R587
R573
R585
R508
R593
R574
IC502
R510
R586
R583
R584
C509
R509
R597
R554
WR502
R540
R539
R528
R527
R594
PJ501
R511
C511
R512
C512
R513
C513
4
R555
D520
R520
R526
R525
R522
R521
R516
R515
CN501
Q501
R518
R517
Q502
R501
C502
D501
C501
C506
R561
R562
C507
R502
IC501
R503
C505
C504
C503
C599
C598
D542D543
D541
R544
R543
R596
R546
R545
R542
R541
R537
R524
R523
R538
R553
R552
R551
R532
R531
R536
R535
R534
R533
Cassettet board (Reverse side)
L501
CLK
C504
C503
DSEL
C531
C506
C505
R543
C509
R515
R518
C594
C575
L571
R592
C586
BCK
9V
R590
C592
ON5V
LRCK
RCH
C533
C527
C525
C529
C524
C526
C528
C530
X501
R547
R548
R549
R550
VPP
C513
CN501
R557
R556
R555
CN502
C538
CN503
BUSCK
R503
SO
IC504
Q501
C502
C511
R546
C537
C539
C501
R545
C507
SI
IC501
R563
R553
R562
R554
D501
R507
R514
R501
R506
R533
R505
L502
X571
C512
Q572
Q571
CDMUTE
D506
C593
C535
C536
REQ
RESET
PDET
DATA
BDET
SI/SO
VDD
C532
C534
Q502
3
X431
C433
C431
IC402
2
1
Q403
C423
CN403
C416
D402
L431
VR402
C411
C417 C419
C409
C410
VR401
C508
R551
R552
R502
R570
R558
C551
R561
IC502
R504
R569
R560
R559
R568
R544
IC503
R537
C574
R536
R516
R510
R509
R511
R508
R513
R512
C523
R588
R530
R593
C595
C596
C522
R541R542
C521
C654
R651
C655
R538
R654
R655
C653
R656
R539R540
R657
X651
C510
IC652
D504D505
D503
D502
C670
R652
R653
C656
C657 C658
C671
IC571
R572
C579
C580
R573
C577
C578
IC572
C589
R589
C585
C591
C598
C597
R591
L572
C590
R587
LCH
R585R586
R583R584
C587C588
C651
L652
C582
R582
C584
L651
C659
C660
L653
C622
C672
C673
R659
R658
R662 R663
R664 R665
C581
R581
C583
R660
C669
R661
C662
C661
CN601
C668
C623
IC621
C624
C615
C604
IC651
RWSEL
C628
C652
C601
C645
C689
B681
C674
D681
BUCK
C690
C647
3
C641
2
L623
1
CCE
BUS0
C630
RFRP
FE
RF
C607
RFGC
TE
IC601
Q601
C612
C613
D682
C682
L622
R686
L621
C639
R684
R685
R682
R683
VREF
TEB
Q681
C681
R688
C683
R681
R687
R689
R690
C688
C606
C629
C633
C634
C635
C687
SEL
RFDC
C603
MP3 board (Reverse side)
C684
IC681
C685C686
2-8
C414
CN401
CJ402
ABC
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