Service manual
– 23 –
CD-C449W/K449W
Figure 23 SCHEMATIC DIAGRAM (2/15)
7
8 9 10 11 12
• The numbers 1 to 12 are waveform numbers shown in page 18.
C26
0.033
R44
33K
R42
47K
R
40
5
.6K
R43
56K
R41
47K
2
9
/50
C28
0.1
R57 1K
R58 1K
R59 1K
R60 1K
R61 1K
R62 1K
R63 1K
D1
1SS133
C22
220P
R47
10K
C37
0.022
R50
680
C39
0.047
C40
0.047
R53
1.2K
IC2
LC78622K
SERVO/SIGNAL
CONTROL
R51 3.3M
C38
0.01
C49 100P
C48 100P
C47 100P
C46 100P
C45 100P
C44 100P
C43
330/6.3
C52 100/16
ZD61
MTZJ4.7B
R64
22
R66
330
Q52
KTC3203 Y
C42
15P
C41
12P
XL1
16.934MHz
D82
1SS133
D81
1SS133
L61
0.82µH
R55 150
R52
27K
R93
@
220
C57
0.001
C56
0.022
C83
0.022
C53
0.022
R39
1K
C25
27P
C23
0.0027
R38
470
C51
100/16
R90 1K
R89 1K
R88 1K
C72
10/50
C71
10/50
R74
560
R73
560
R71
2.7K
R72
2.7K
Q51
KRC107 M
R81
3.9K
R80
6.8K
D4
RL104A
D3
RL104A
IC81
TA7291S
LOADING
MOTOR DRIVER
R83
3.9K
C81
47/16
R82
6.8K
C82
47/16
Q93
KRC102 M
Q91
KTA1271 Y
R87
10K
D91
1SS133
R86
2.2K
R54
330
C74
0.001
C73
0.001
C50
3.3/16
R85
56
1
CNP10
2
3
4
5
6
7
8
9
10 10
1
CNP11
1
BI99
1
CNP99
2
3
4
5
6
2
2
3
3
1
CNP12
2
3
4
5
6
7
8
9
10
11 12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 18
19
20
21
22 23
24 25
26
27
28 29 30 31 32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49 50 51 52 53
54
55
56 57
58 59
60 61 62
63 64
1 2 3 4
5
6
7
8
9
1
2
1
2
1
CNS10
1
BIM05
2
3
4
5
6
7
8
9
2
3
4
5
6
SW3
DISC NUMBER
SW2
MECHA UP
SW1
OPEN
CLOSE
M
M3 T/T
UP/DOWN
LOADING
MOTOR
CNS5
5V
EFMIN
OPEN/CLOSE
MECHA UP
DISC NO.
PIUN
SL–
SL+
GND(D)
DRF
RES (DSP)
CQCK (DSP)
SQ_OUT (DSP)
COIN (DSP)
WRQ (DSP)
RWC (DSP)
DOUT
+4.3V
GND
CD R-CH
GND(AU)
CD L-CH
GND(CD)
+7.3V
12V(M)
XVDD
XIN
XOUT
XVSS
EFLG
SBSY
2.5V
0V
0V
2.2V
TA1
DEFI
0V
TEST1
PCCL
LVSS
0V
TEST3
PDO
EFMO
VSS
4M
16M
TST11
DOUT
C2F
EMPH
FSEQ
PCK
FSX
/RES
/CQCK
COIN
SQOUT
RWC
WRQ
SBCK
SFSY
PW
MUTEL
LVDD
RVDD
MUTER
RCHO
RVSS
LCHO
CONT5
CONT4
CONT1
CONT3
CONT2
FR
JP–
JP+
TGL
TOFF
CLV–
CLV+
V/P
HFL
TES
VDD
TEST2
VVDD
ISET
VVSS
TEST4
TEST5
/CS
0V
2.5V
0V
0V
0V
1V
5V
HF
FROM MAIN PWB
P24 1-D
CNSF12
+B
CD SERVO PWB-B
+B
0V
2.9V
6.5V
6.5V
6.5V
0V
1V
6.4V
0V
LOCK
SENSOR PWB-J
–
+
/CLOSE
OPEN
GND(D)
MECHA UP
GND(D)
DISC NO.
M+
M–
SOL
GND(M)
GND(D)
GND(D)
SOLENOID2
3
2
1
+B
3
2
1
+B
+B
TO MAIN PWB
P27 12-D
CNPR11
FROM MAIN PWB
P24 1-B
CNSF11
CD SIGNAL
+B
+B
+B
+B
SUB-CODE
DIGITAL SERVO
SLICE LEVEL
CONTROL
SYNC-DETECT
EFM DEMODULATE
VCO CLOCK
OSC CONTROL
ERROR CORRECT
FLAG CONTROL
DIGITAL
OUT
X-TAL
GENERATOR
µ-COM
INTERFACE
1BIT
DAC
4FS
DIGITAL
FILTER
EXTERNAL
OUTPUT
SERVO
COMMAND
CLV
2K x8BIT
RAM