
KDC-3028/328
21
J
I
H
G
F
X34-3390-1x (2/4)
CN2
Q151
5
D403
D203
2/2
X16-
J1
SYSTEM u-C
E-VOL & TUNER
E2PROM
MUTE
LOGIC
to CD PLAYER UNIT (X
FL+B SW
Q152
Q156
ILLUMI
EJECT
D166
S152
EJECT
SW
PANEL
5V SW
RDS QUAL
RDS AFSM
PWIC MUTE
PWIC STBY
PS1 3
RDS AFSL
100K
R371 4.7K
GND
FSU
C600
L601
100u10
R590 10K
TP157
VFD D
A
T
A
F
VFD CE
VFD CLK
VFD D
A
T
A
S
REMO
TE
RT
R
Y
CCW
TDF DET
ESD GND
13
14
15
10
11
12
8
9
TP166
1K
470
1K
TP164
TP163
TP162
100
1K
470
470
TP161
TP160
TP159
TP158
2.2K
2.2K
2.2K
470
ILL D GND
P
AN5V
RT
R
Y
C
W
FL+B
VFD RST
RST
5
6
7
2
3
4
1
C153
1
R153
TP156
TP154
TP155
TP153
2.2M
100K
R194
R152
TP152
TP151
R193
XT
ALG
10.250MHz
X501
C553 0.1
C559
3300P
29
28
27
ISSTC1
ISSTC2
C620
1
OUTRR
WININ
SSTOP
DCOUT
R567 1K
R566 1K
32
31
30
35
34
33
38
37
36
40
39
IN1L
SD
A
XT
ALD
SCL
OUTFR
IN1R
IN1C
OUTRL
OUTFL
TP510
41
42
43
44
45
TP431
4
1
A2
A1
A0
3
2
SCL
WP
VCC
GND
SD
A
TP430
47K
R592
22K
5
8
6
7
10K
R436
10K
R453
47K
42
41
40
PS1 1
PS1 2
PS2 1
PS2 2
PON
BU DET
39
38
37
L602
C564 0.47
C568
270P
R2 100
R1 100
450.000kHz
CF54
VCCIF1
IF1AMP1OUT
72
C579
0.01
GND2
AMMIX2OUT2
AMMIX2OUT1
VCC2
FMMIX2IN1
FMMIX2IN2
AMRF
A
GCTC
IF1AMP2OUT
AMDETC
AMREFDEMC
IF1AMP2IN
SMUTE
QUALITYOUT
APVCC
MPXIN
MPXOUT
AMIFREE
FMREFDEMC
GNDDEM
AMIFIN
VREF1
FSW
AFS
46
47
48
49
IN2R
IN2L
50
51
52
53
C561 0.1
57
54
55
56
58
59
60
C586 1
C588 0.47
R601
1u50
0.022
3900P
0.068
69
70
71
66
67
68
63
64
65
61
62
C512
10u16
C624
0.01
0MHz
52
L509
10.700MHz
CF53
R591
51K
C585
1
100K
4.7K
R561
TP504
TP414
TUN ADJ
R438 1K
R437 1K
VOL MUTE
RDS DATA
ACC DET
VSS1
36
35
34
33
RESET2
32
31
30
29
LX REQ M
AUD SCL
AUD SDA
28
27
26
25
LX CON
LX RST
TUN SD
24
23
22
21
R432
4.7K
TP410
TP409
19
20
R439
∗
R431
2.2K
VCC
1
2
3
4
R456
GND
8
5
7
6
∗
R312
100K
∗
R313
CD MUTE L
14
CD SD
A
CD LOS SW
CD DISC12
23
D-OUT
CD SCL
21
CD MUTE R
A
UDIO+B
GND
17
Lch
19
Rch
15
20
24
22
TP351
TP353
TP352
18
16
TP356
TP355
TP354
TP358
TP357
CD MST
OP
CD MRST
1
13
12
TP360
TP359
TP362
TP361
TP364
TP363
0.47u50
470
470
R352 2.2K
R351 2.2K
R370 4.7K
0.47u50
R356 1K
R355 1K
R353 1K
CD LOS SW
54
53
52
51
50
49
48
47
46
45
44
43
CD LOEJ
CD LOE LIM SW
CD MST
OP
CD MUTE
KEY CDEJ
PON CD
CD DISC12 SW
CD MRST
CD DISC8 SW
CD MO
T
O
R
CD SCL
55
R366 4.7K
R365 4.7K
R367 100K
A
VREF1
VFD D
A
T
A
F
VFD D
A
T
A
S
VFD CLK
VFD RST
VFD CE
RO
T
A
R
Y
CCW
TDF DET
PWIC BEEP
LX D
A
T
A
S
LX D
A
T
A
M
LX CLK
16
17
18
13
14
15
10
11
12
7
8
9
53
54
52
55
45
46
51
R
L
C2
C1
60
8
11
3
63
R158
∗
R162
R163
R164
R178
R190
R191
R182
R181
R180
R160
R161
470K
470K
470
10
FR
FL
RL
L
R
G
R597
C601
C515
C590
C583
RR
21
1
80
19
R435
R589
APGND
2.2
R600
0.01
C562
10u10
C556
R
L
53
47
48
46
45
52
49
51
54
41
42
39
40
38
9
14
12
13
10
11
8
18
17
16
22K
24
23
22
21
2
0.01
C201
19
66
27
29
R454
4.7K
34
32
FL+B
+5V
+8V
+B
+B
+8V
10
+8V
7
35
36
ILL+B
SW
CD DISC8
R159
79
VCC1 (DIG)
15
43
3
3,43
+8V-A
1
R368
R369
R562 10M
1.5K
R195
R196
4.7K
TP165
R186
240
R183
1K
47K
R185
1K
R184
37
1K
R157
1K
R156
62
44
∗
W367
3P
C603
TP433
TP434
TP317
10
R598
47P
C580
R151
1K
2200P
C552
∗
L301
1K
+
+
+
+
+
+
IC11
IC10
IC6
∗
IC1
A
47K
10K
47K
10K
0V
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
0V
5V
0V
5V
0V
0V
5V
0V
4.9V
0V or 5V
0V
5V
0V
0V
5V
5V
0V
0V
5V
0V
5V
0V
5V
0V
0V
0V
4.0V
3.0V
8.1V
4.0V
0V
5.0V
0.2V
3.4V
5.0V
3.3V
0.6V
3.8V
8.1V
3.0V
0V
5.0V
3.0V
0V
8.1V
4.3V
8.1V
0V
5V
5.0V
0V
0V
0V
0V
4.5V
0V
0V
5V
5.0V
5.0V
5.0V
0V
AM : 4.2V
FM : 0.2V
AM : 3.1V
FM : 0V
AM : 0V
FM : 4.0V
AM : 4.1V
FM : 5.2V
AM : 8.0V
FM : 8.1V
5.0V
0V
5V
5V
0V
FM : 0V
AM : 3.75V
AM : 3.8V
FM : 0V
3.0V
0V
5V
5V
0V
5.0V
0.5V or
5.0V
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299