KDC-3028/328
23
T
S
R
Q
P
1
2
3
4
5
6
7
CAUTION : For continued safety, replace
safety critical components only with
manufacturer's recommended parts (refer to
parts list).
Indicates safety critical components. To
reduce the risk of electric shock, leakage-
current or resistance measurements shall be
carried out (exposed parts are acceptably
insulated from the supply circuit) before the
appliance is returned to the customer.
• DC voltages are as measured with a high
impedance voltmeter. Values may vary
slightly due to variations between indi-
vidual instruments or/and units.
E
C
B
2SB1565
DTA114EE
DTC114YUA
DTC143TUA
2SA1036K
2SA1362
2SA1576A
2SC4617
2SD1858
2SC4081
DTA124EUA
DTC124EUA
UMC2N
DAN202U
DA204U
DTA114YUA
X34-3390-1x (4/4)
X BUS
D73
Q72
D71
Q73
Q71
J1
D72
D305
D304
D303
D57
IC3
SW
CONTROL
SERVO+B
AVR
POWER
SUPPLY
Q91
D91
Q54
MECHA+B
∗
I
(X34-339x-xx)
BU5V
SW
SERVO+B
CONTROL SW
R305 4.7K
TP305
TP307
Lch
12
R309 4.7K
R307 4.7K
R308 4.7K
0.47
0.47
R310 100
C301
10
R311 100
D
ATA
S
RST
D
ATA
M
CLK
REQ S
MUTE
11
10
13
9
TP310
TP309
TP312
TP311
TP313
R138
R140
R141
2.2
R139
R136
R137
R135
R133
R131
R130
2.2
R76 10K
R75 10K
R78 10K
R77 10K
TP26
TP30
TP31
TP420
VBU
C78 220u16
C80 220u16
C74 10u16
C76 10u10
C75 10u16
C77 10u50
R87 1
R86 1
R85 1
R88 1
12
11
10
ILM
SW2
SW1
47u16
∗
C73
10u25
∗
R89
1
C72
10u25
C52
1000P
R90
1
∗
W420
GND
TP74
AM
VCC
VDD
AUDIO
9
8
7
6
P.CON
P.ANT
FM
5
4
3
2
1
C69 0.47
C71
R21
1.5K
R253
4.3K
1u50
PHONE
FR
ONT L+
FR
ONT L-
FR
ONT R-
FR
ONT R+
REAR R+
REAR L+
REAR L-
REAR R-
P-CON
RL-
FR-
RL+
FL+
FL-
FR+
RR+
RR-
11
9
10
8
6
7
14
12
13
P-ANT
5
3
4
L51
140uH
FUSE
F1 10A (F52-0006-05)
15
16
GND
2
AC
C
1
B.
U
.
C51
TP10
TP16
TP9
41
40
38
39
42
15
L
22
17
18
16
2
66
R301
+B
SERVO+B
FL+B
3300u16
TP15
TP12
TP13
TP14
TP6
TP7
TP8
TP11
TP2
TP3
TP4
TP5
TP1
P-ANT
P-CON
PHONE
AC
C
BU
Q74
47K
R94
VOS
SWOUT
220uH
47K
W411
L62
2
4
R91
VIN
ON/OFF
GND
3
5
1
C93
220u16
R92
0.22
C95
47K
100u25
100u25
C92
C91
TP73
TP72
TP71
TP25
TP27
TP28
TP29
R84 1
∗
C20
100u16
27uH
∗
L2
C79 10u16
4.7K
R73
4.7K
R72
TP32
R62
47K
R132
R134
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
+
+
D5V
KDC-3028
KDC-328
KDC-W5031/Y
KDC-MP5029
MODEL NAME
2-71
C20
YES
YES
0-21
0-12
0-11
UNIT
No
.
YES
YES
AE
B
D162,
260
33u10
334
C333,
C255
YES
YES
KDC-W531Y
2-72
YES
YES
YES
YES
YES
YES
10u16
YES
YES
YES
YES
I
YES
YES
C73
YES
33u10
33u10
33u10
784225GC280A
IC1
784225GC279A
784225GC280A
784225GC279A
784225GC279A
TB2904HQ
E-TD
A7560A
IC4
E-TD
A7560A
E-TD
A7560A
E-TD
A7560A
YES
YES
L2
YES
YES
YES
YES
YES
R89,
313,415,480
YES
YES
R413
R412
YES
R414
YES
YES
R416
452
R256
22K
YES
YES
YES
R471
470
33K
220
R251
R255
30K
R257
R172
YES
YES
YES
YES
YES
YES
YES
YES
150K
150K
330
12K
YES
R162,312,
R450-
R431,
30K
33K
22K
220
30K
30K
33K
33K
22K
220
22K
220
YES
YES
YES
YES
YES
W252
YES
YES
W51
YES
YES
367
W57,
YES
YES
368,377
W420
E30-6403-05
YES
YES
WH2
WH1
YES
W251,346,
DESTI-
NA
TION
E
E
K
K
M
47K
R93
411
YES
YES
YES
L301
YES
YES
YES
YES
+
+
+
+
+
+
+
+
+
+
+
+
+
IC3
KDC-3028/328 (1/2)
IC9
22K
22K
22K
22K
22K
10.2V
8.0V
5.0V
13.2V
14.4V
14.1V
7.8V
8.0V
14.1V
0V
0V
14.4V
5.0V
0V
0V or 2.3V
14.4V
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QQ 376315150
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299