26
KDC-MP628/MP7028/MP728
MP8029/W7031/W7031Y
A
B
C
D
E
1
2
3
4
5
6
7
22K
22K
4.7K
4.7K
4.7K
4.7K
4.7K
4.7K
0V
0V
0V
0V
0V
0V
-9.1V
9.4V
0V
0V
9.4V
0V
0V
-9.1V
0V
0V
0V
0V
9.4V
0V
0V
-9.1V
0V
0V
0V
5V
5.0V
0V
4.332MHz
5.0V
0V
2.4V
2.4V
0V
8.0V
11.2896MHz
3.3V
0V
3.3V
0V
3.3V
0V
5.0V
0V
2.5V
5.0V
0V
0V
1.3V
5.0V
1.3V
5.0V
0V
IC305
IC4
IC3
IC601
IC602
IC603
IC400
IC500
B
ELECTRIC UNIT (X34-3xxx-xx)
P1
TUNER
D504
Q500
∗
A1
W400
D401
Q403
Q402
D609
D608
CN600
∗
E
Q608
Q609
∗
I
∗
J
Q610
Q611
∗
K
SUB
(+REAR)
Q612
Q613
∗
H
REAR
FRONT
FM/AM ANT.
∗
B
S2
S1
PANEL
MECHA SW
CN500
∗
L
DGND
M ch
E-V
OL
DSP A
DA
C
D500
D503
D505
SPECTRUM ANALYZER
∗
A
D502
D501
D506
2/2
X16-
J1
KDC-X889/X8529/X789
L707,L707MD
KDC-MP728/MP628/MP8029
W7531Y/MP828/MP7028
KDC-W8531/W8531Y/W7531/
KDC-W7031/W7031Y
D507
AM+B SW
5V PREOUT
AMP
AMP
5V PREOUT
PRE-
SW
MUTE
OUT
MUTE
SW
PRE-
OUT
OUT
PRE-
MUTE
SW
5V
AMP
PRE-
OUT
RDS DECODER
BUFFER AMP & AGC
AGC CONTROLLER
SPECTRUM ANALYZER
DAC DIGITAL POWER SU
DAC ANALOG POWER S
DAC
MPX
TP501
TP500
TP502
TP504
TP503
TP505
25
R
IF+B
L
IF1GND
RDSMUTE
STDGND
DGND2
R512
C504
R502
1K
TP455
R505
C501
4.7
R500
47K
47K
R503
33K
C502
4.7
4.7
C506
10u16
R519
330K
0.01
C402
0.01
3
1
2
TP417
TP418
7
5
6
4
TP416
TP414
C412
TP415
TU-R
TU-L
29
R411 2.2K
C415
12P
C414
12P
R410 2.2K
10u16
10u16
RSTB
VCOM
21
20
18
19
17
16
LOUT4
R
OUT4
LOUT3
R
OUT3
24
25
26
23
22
P/S
LOUT2
R
OUT2
R
OUT1
LOUT1
10
DEM0
13
D
VDD
14
D
VSS
15
SDTI4
11
DIF1
12
SD
A
SDTI2
SDTI3
8
9
SCL
CAD0
7
6
5
30
27
28
29
C299
C366
A
VSS
A
VDD
DZF2
DZF1
C395
0.1
2
LRCK
SDTI1
4
3
BICK
MCLK
1
C394
TP303
TP304
C381
0.047
C380
1
VOUT
4
5
NB
C378
0.047
C377
1
5
VOUT
4
NB
VIN
3
2
1
GND
CNTL
1
VIN
2
3
CNTL
GND
SCL
SMETER
QUALITY
AMIFOUT
DGND1
VDD5V
PLLGND
IFC
SDA
OSCGND
COM+B
VT
FMANT
AMANT
AM+B
26
RFGND
3
1
2
20
10
11
9
8
TP413
TP412
TP422
TP410
14
12
13
TP409
TP411
C410
0.01
L403
4.7uH
TP406
16
15
TP408
TP407
19
18
17
TP405
TP403
TP419
TP420
TP421
C409
0.01
34
R408
126
128
R406 470
R407
R405 470
R404
22K
28
35
26
23
TP401
21
22
TP402
24
C407
0.01
L401
4.7uH
L400
R409
1K
TP400
TP607
TP609
TP610
TP608
TP612
TP605
TP604
TP602
TP603
TP606
TP601
C631
0.47
C630
47u6.3
C629
0.47
10
R641
R642
4.7
R643
10
TP611
1
2
3
4
5
6
7
8
9
10
11
12
REAR/SUB L
GND
REAR/SUB R
N.C.
N.C.
N.C.
FRONT R
FRONT L
GND
AUX L
A-G
A-R
A-L
1K
R644
0.01
C632
10u16
C611
R611
360
R613
12K
R620
C614
10u16
360
12K
4
V-
2
3
R619
5
6
82
∗
W607
R612
C612
10u16
82
10u16
1
V+
R618
7
8
C613
∗
W608
R616 10K
R656 100K
R614 10K
R655 100K
R617 22K
R615 22K
7
R623
12K
10u16
82
∗
W610
R622
18
V+
10u16
82
R628
∗
W612
R657 100K
R625 22K
R624 10K
4
2
3
∗
W609
10u16
C615
R621
360
∗
W611
V-
6
5
12K
R629
10u16
R630
360
C618
7
R633
12K
C620
10u16
82
∗
W614
R632
18
V+
10u16
C621
82
R638
∗
W616
R659 100K
R635 22K
R634 10K
4
2
3
∗
W613
10u16
C619
R631
360
∗
W615
R660 100K
R636 10K
V-
6
5
12K
R639
R637 22K
10u16
R640
360
C622
P-NR
P-NL
P-RR
P-RL
P-FR
P-FL
PREM-R
PREM-L
∗
W603
∗
W604
10u16
+
C633
10u16
C634
1000P
1000P
∗
C623
1000P
∗
C625
1000P
∗
C626
1000P
∗
C627
1000P
∗
C628
∗
C624
P-NR
P-NL
P-RL
P-FL
P-RR
P-FR
P-NR
P-NL
P-RL
P-FL
P-RR
P-FR
1
2
3
4
5
6
7
8
QUAL
RDDA
VREF
MPX
OSEL
GND
ARI
FILOUT
16
15
14
13
12
11
10
9
RDCL
T57
OSCOUT
OSCIN
VCC
EXTRES
TM
FSEL
31
32
24
2.2K
R412
C404 330P
C403 2.2
C405
10u16
X401
4.332MHz
4.7uH
L405
8
7
6
5
7
8
VCC
GND
3
4
2
1
820
R506
100K
R507
10K
10K
R518
1
R520
0.01
C505
4.7
C500
47K
R504
330K
R513
58
TP454
53
1K
R450
1K
R451
1
2
3
4
5
6
7
FDC
FL GND
FL GND
P
AN 5V
FL+B
ILL+B
FDC
P
ANEL5V
FL+B
ILL+B
100
R501
10
11
12
13
17
16
23
FL-
FL+
FR-
FR+
RL
RR
NL
NR
10u16
C367
0.1
47K
R381
0.1
C298
SW5V
A8V
A8V
SW5V
A8V
11
BU5V
9.1
R822
100P
C813
9.1
R821
470P
C812
9.1
R820
9.1
R819
8.2
R818
100P
C809
4.7K
4.7K
TP506
TP508
TP507
TP509
TP510
TP511
TP512
TP513
AUX R
AUX COMMON
∗
C616
∗
C617
∗
C635
1
R658 100K
R626 10K
1
∗
C636
R627 22K
∗
C637
1
1
∗
C638
8
9
10
11
12 13
14
15 1
SYSREQ
DGND
SA
P
ANREQ
PA
N
D
ATA
SYSD
A
T
A
SCCON
P
AN-DET
RST
ESD
41
38
36
61
23
40
100
∗
R508
4.7
∗
C503
TP514
1K
R515
100
R510
10K
∗
R509
100
R511
100
R514
4.7K
R516
1K
R517
RST
A
UX IN
AUX L
AUX R
AUX COMMON
1
3
2
FR
ONT
GND
FRONT L
5
4
FRONT R
6
SUB R
SUB L
GND
SUB
11
12
9
REAR
GND
REA L
7
8
REAR R
10
W
OOFER
FRONT R
REAR
9
REA/SUB L
12
REAR/SUB R
GND
11
FRONT L
FR
ONT
GND
6
4
5
A
UX IN
AUX COMMON
AUX L
3
1
AUX R
2
(SUB WOOFER)
11
REAR
(SUB WOOFER)
REA/SUB L
12
9
GND
FR
ONT
FRONT L
REAR/SUB R
4
FRONT R
5
6
GND
1000P
∗
C416
Q612,613
Q610,611
Q608,609
Q500
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
X34-3xxx-xx (1/6)
CAUTION :
For continued
safety, replace safety criti-
cal components only with
manufacturer's recom-
mended parts (refer to
parts list).
Indicates safety critical
components. To reduce
the risk of electric shock,
leakage-current or resis-
tance measurements shall
be carried out (exposed
parts are acceptably insu-
lated from the supply cir-
cuit) before the appliance
is returned to the cus-
tomer.
• DC voltages are as measured with a
high impedance voltmeter. Values may
vary slightly due to variations between
individual instruments or/and units.