Kenwood KDC-3025 Service Manual page 19

Cd receiver
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P
C255
1u50
+
4.9V
0V
5.0V
5.0V
5.0V
5.0V
0V
0V
0V
C6
E
E
0V
5.0V
5.0V
0V
0V
Q153
47K
R64
100K
47K
R67
C51
470
0.01
ILL.
CONTROL
R65
100K
R187
R68
C52
47K
470
0.01
PANEL
DET. SW
R168
1K
R167
470K
2
4
6
CN2
1
3
5
Q
70
TH1
D269
R255
330
4.3V
0V
IC4
AUDIO
POWER
IC
Q501
22K
22K
Q502
R61
100K
R62
100K
8
10
12
14
16
18
20
7
9
11
13
15
17
19
21
to CD MECHA UNIT CN2 (X32- )
R
DC-CN
J1
9
10
11
12
8
7
6
5
R2 36K
R3 100K
SERGE
DET
Q1
C3
1000P
R6
10K
Q2
R7 22K
B. U
DET
R8 3.3K
1/2W
C4 0.01
R10
22K
Q3
ACC
DET
C5 0.01
R11 22K
5.0V
RESET
IC
D401
IC8
R402
100K
2
3
VDD
NC
1
4
VOUT
VSS
5.0V
0V
0V
1
2
C403
0.1
3
4
5
6
6
7
8
R401 1K
9
C401
10
18P
C402
11
22P
32.768kHz
12
W102
13
14
X1
15
10.000MHz
16
17
5.0V
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
22
S
KDC-3025/325/5026/G
FUSE
13
14
15
16
F1 10A
4
3
2
1
C2 0.01
D1
C1
3300u16
+
R32
TEL
22K
MUTE
C31
0.01
R33
A
D31
L2
47K
27uH
R25 10K
77
Q22
SW14
R26 10K
76
D21
Q21
R28 10K
CD SERVO SW
79
R27 10K
C21 100u10
80
+
SW5V
R12
Q4
47K
C409
47u6.3
+
78
C27 10u50
0V-5.0V
0V-1.6V
5.0V
0.6V-4.1V
N.C
N.C
N.C
N.C
N.C
5V
REMO
0V
N.C
BYTE
0V
CNVSS
XCIN
XCOUT
5.0V
RESET
0V
XOUT
SYSTEM
MICROPROCESSOR
VSS
0V
IC1
XIN
VCC
NMI
5.0V
EJECT
0V
5V
5V
0V
R-CLK
0V
5V
5V
LX-REQ S
0V
0V
ILL CON
5V
5.0V
0V
PANEL 5V
0V
5.0V
5.0V
0V
VOL A
0V
VOL B
LOE/LIM SW(SW3)
5V
BEEP
0V
5.0V
M STOP
5V
0V
MOSW
0V
5V
PLL-CLK
0V
PLL-DATA
5V
0V
X34-3090-xx (2/3)
T
IC3
POWER
SUPPLY IC
0V
1
GND
14.2V
D24
2
PCON
14.1V
D25
3
PANT
8.1V
C29
10u16
4
FM
+
7.9V
5
AM
8.1V
6
AUDIO
14.4V
7
VCC
5.0V
8
VDD
C28
220u16
13.1V
9
VBU
+
9.8V
4.4V
2V
0V
D26
10
SW1
4.8V
2.4V
0V
11
SW2
B
Q23
10.3V
12
ILM
R24 10K
Q23
POWER SU
+
5V
5.0V
0V
0V
5.0V
0V
5.0V
0V
5.0V
0V
0V or 5.0V
0V or 5.0V
5.0V
0V
5.0V
5V
0V
0V
5V
5.0V
0V
0V
5.0V
5.0V
0V
0V
0V
19

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