Kenwood KDC-MP628 Service Manual page 26

A
KDC-MP628/MP7028/MP728
MP8029/W7031/W7031Y
1
CN600
2
FM/AM ANT.
W400
KDC-X889/X8529/X789
KDC-W8531/W8531Y/W7531/
W7531Y/MP828/MP7028
AUX R
AUX COMMON
AUX L
FRONT R
GND
FRONT L
3
REAR R
10
GND
REA L
SUB R
11
GND
SUB L
12
KDC-MP728/MP628/MP8029
L707,L707MD
AUX R
AUX COMMON
AUX L
FRONT R
4 GND
FRONT L
REAR/SUB R
11
GND
REA/SUB L
12
(SUB WOOFER)
KDC-W7031/W7031Y
FRONT R
GND
FRONT L
REAR/SUB R
11
GND
REA/SUB L
12
5
(SUB WOOFER)
CAUTION : For continued
safety, replace safety criti-
cal components only with
6
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-
7
tomer.
26
X34-3xxx-xx (1/6)
B
ELECTRIC UNIT (X34-3xxx-xx)
AUX COMMON TP608
2 1
AUX R TP609
R643
10
AUX L TP607
4 3
FRONT L TP604
R642
P-FL
GND 4.7
TP602
6 5
FRONT R
TP606
P-FR
R641
N.C.
TP605
10
8 7
N.C. TP601
P-RL
GND TP611
10 9
N.C. TP603
P-RR
REAR/SUB R TP612
12 11 P-NR
REAR/SUB L TP610
P-NL
1
2
3
L400
∗
TUNER
A1
26
∗
C416
1000P
24
RFGND
23
TP401
2
FMANT
1
D401
C407
22
3 AMANT L401
0.01 4.7uH
21
TP402
AM+B
20
6
C409
OSCGND
TP400
0.01
19
5
TP403
VT
18
4 TP405
COM+B
17
TP406 TP419
IFC
R405 470
16
TP407 TP420
7
SDA
8
R406 470
15
TP408 TP421
SCL
C410
14
L403
DGND1
9
4.7uH
0.01
13
TP409
VDD5V
12
PLLGND
11
TP410 TP411
SMETER
10
TP422
AMIFOUT
9
TP412
QUALITY
8
TP413
MPX
2
7
DGND2
1
6
TP414 TP415
RDSMUTE
3
5
STDGND
4 TP416
TU-R
R
6
3 TP417
TU-L
L
5
2
TP418
IF+B
4
C412
1
IF1GND
0.01
25
9
RDS DECODER
IC400
5V
R411 2.2K
1 16
31 QUAL RDCL
0V
15
6
R410 2.2K
2
T57
32 RDDA
14
5
OSCOUT
C403 2.2
2.4V 3
4 VREF
C404 330P 2.4V 4 4.332MHz
MPX
5.0V 5
13
OSEL
OSCIN
9
12
VCC
6
11
GND
EXTRES
0V 7 10
0V
ARI TM
8 9
∗
FILOUT FSEL
B
C504 R512
Q500
4.7 330K
7
R504 R513
SPECTRUM ANALYZER
8
BUFFER AMP & AGC
47K 330K
IC500
C500
5
GND
4.7
6
7
D504
R500
8.0V 8
VCC
47K
R520 C505
1 0.01
Q500
SPECTRUM ANALYZER
AGC CONTROLLER
• DC voltages are as measured with a
high impedance voltmeter. Values may
vary slightly due to variations between
individual instruments or/and units.
C
∗
E
D608 D609
5V PREOUT
AMP
C631
P-NL
0.47
A-L
C630
47u6.3
A-G
+
C629
0.47
A-R
P-NR
P-RL
AM+B SW
A8V
Q402
R409
1K
Q403
R404
22K
22K
22K
P-RR
28
5V PREOUT
35
AMP
R407
4.7K
34
R408
4.7K
SW5V
P-FL
128
126
29
A8V
P-FR
∗
R412
L
2.2K
C414
12P
PANEL
MECHA SW
C415
12P
L405
5.0V
4.7uH
TP455 TP454
∗
A
4 0V
3
C506
2
10u16
+
R519
1
10K
CN500
P1
D
∗ ∗
W616 W615
∗
C621 R638 R639 C638
10u16 82 12K
1
+
9.4V
∗
K
IC603
SUB
(+REAR)
∗
C620 R632 R633
C637
10u16 82 12K
1
+
∗
∗
W614
W613
∗ ∗
W612 W611
∗ ∗
C617 R628 R629 C636
10u16 82 12K
1
+
9.4V
∗
J
IC602
REAR
∗
C616 R622 R623 ∗
C635
10u16 82 12K
1
+
∗ ∗
W610 W609
∗ ∗
W604 W608
C634
10u16
C613 R618 R619
+
10u16 82 12K
+
9.4V
∗
I
IC601
FRONT
5V
PRE-
OUT
AMP
C612 R612 R613
10u16 82 12K
+
C633
∗ ∗
W603 W607 10u16
+
C298
R381
0.1
47K
11.2896MHz
3.3V
IC305
5.0V 3.3V 3.3V
0V
0V 0V
DAC
5.0V
0V
C366 C299
0.1 0.1
C367
10u16
+
BU5V
40
1 2 3 4 5 6 7 8 9 10
B
E
R640 C622
360 10u16
P-NL
+
Q613
4.7K
Q612,613
PRE-
OUT
MUTE
SW
4.7K
Q612
R631 C619
360 10u16
P-NR
+
Q610,611
PRE-
∗
OUT
H
MUTE
SW
R630 C618
360 10u16
P-RL
+
Q611
4.7K
PREM-L
4.7K
PREM-R
Q610
R621 C615
360 10u16
P-RR
+
R620 C614
360 10u16
P-FL
+
Q609
4.7K
Q608,609
PRE-
OUT
MUTE
SW
4.7K
Q608
R611 C611
360 10u16
P-FR
+
IC3
C378
0.047 4 3
NB CNTL
2
1.3V
GND
1
5
VIN
VOUT
5.0V
TP303
DAC DIGITAL POWER SU
DAC ANALOG POWER S
IC4
C381
0.047
4 3
NB CNTL
2
1.3V
GND
1
5
VIN
VOUT
5.0V
TP304
11 12 13 14 15 1
X16-
2/2
J1