Kenwood KDC-135 Service Manual page 28

U
KDC-135/135CR/136
CD PLAYER UNIT (X32-598x-xx)
1
A8V SW
∗
Q1
∗
Q2
Q3
2
C17
0.1
1
2
3
4
3
D.GND
A.+8V
12EJE SW
CN2
N.C. 24 TP24
12EJE
12EJE SW 23
LOS
LOS SW 22
4
LOS SW
CP4 100
CLK
CLK 21
DATA
DATA 20
A8V
A8V 19
Lch
Lch 18
A GND
17
A.GND
Rch
Rch 16
MUTE
MUTE 15
MUTE 14 TP14
5
MRST
MRST 13
12
MSTOP
MSTOP
∗
8EJE
11
8EJE SW
8EJE SW
DOWN&LIMIT
SWITICH
6
S3
LOE/IIM
LOE/LIM SW 10
BU5V
BU5V 9
D GND
D.GND 8
TX/BCLK
D.OUT 7
LRCK 6 LRCK
5
SRDATA SRDATA
LO/EJ
LO/EJ 4
MOTOR
MOTOR 3
S7V
S7V 2
S GND
7
S.GND 1
28
X32-5980-00 (1/2)
V
A3.3V
3.3V
REG
∗
IC3
IN OUT A3.3V
GND
A.GND
Q1 SW
20 118
∗
Q3
CP1
5V-3.3V
LEVEL
SHIFT
21
116
R106
2.2
ROM
CORRECTION
IC5
(NOT USED)
8
A0 VCC
7 SCL FCLK
A1 WP CP3
6
A2 SCL 120
5
GND SDA 119
100
SDA FDATA
3.3V
REG
IC2
S2
S1
BU3.3V
∗
Q4
∗
21
R24
20
100
∗
R13 1K
L
5V-3.3V
LEVEL SHIFT
∗
R14
1K
R
107
∗
R27
Q8,9
125
∗ POWER SUPPLY
R28 27K
CONTROL
Q9 Q8
S4
D1
126
4
3
W
D.GND
1.5V
ASEL
1
2
∗
3
R23
75
4
4
3.3V 5
5
6
TE 7
8
SRVMON1
9
SRVMON0
0V
10
BU
∗
3.3V
R37
SW
10K
3.3V 11
Q6 NPWDOWN
12
R15
10K
0V 13
C21 0.1
14
15
C84 C22 R110
1 0.1 2.2
16
R39 10K
17
18
19
20
21
22
23
24
25
5
26
27
28
29
30
31
32
7.3V
IC6
4CH BTL
DRIVER
S.7.5V
X
OCDSEL
BCLK
3.3V
LRCK
3.3V
SRDATA 0-3.2V
TX
MUTE R
MUTE L
N.C.
SRVMON1
SRVMON0
RAMSEL
ROMSEL
NPWDOWN
1.2V
DVSS3
SRAMVDD 1.5V
REGOUT
3.3V
REGVDD
3.1V
REGON2
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
69
R60 R59 R61
15K 27K 15K
C35 C36
1000P 6800P
1.7V
0V
1.6V
1.8V 3.2V
C38 C37
470P 6800P
R66 R65
15K 15K
C39
2.2
67
S.GND
Y
∗
X1
16.934MHz
4.00pp
0V
0-3.3V
IC1
CD SIGNAL PR
& MECHA u-CO
RF AMPLIFIER
RESPONDING
1.5V
D.GND
3.6V
17
3.3V
16
3.7V
3.4V
15
3.4V
14