– 19 –
CD-C470H,C470E,C480H/CP-C470H,C470E,C480H
Figure 19 BLOCK DIAGRAM (1/3)
1
2
3
4
9
8
6
7
20
12
13
24
25
30
31
34
35
36
10
11
27
26
28
29
PU-IN SW
XL1
XIN
LD0
FIN2
JP–
CV+
SLC
SLI
FIN1
E
F
TO
FD
SPO
SP
SLD
SL–
SL+
DRF
CL
DAT
CE
VCC1
VCC2
6
+4.9V
PICKUP IN
SW4
FOCUS COIL
TRACKING COIL
M1
SPINDLE
MOTOR
M
M
M2
SLED
MOTOR
PICKUP UNIT
9
IC2
LC78623E
SERVO/SIGNAL
CONTROL
+B4
IC5
M56748FP
DRIVER
IC1
LA9240M
SERVO AMP.
RES. CQCK. COIN
SQOUT. RWC. WRQ
~
~
~
CL, DAT, SELIAL CONTROL/CE
SL+. SL–. DRF
+4.9V
62
64
56
45
36
23
43
37
38
39
40
24
25
58
53
10
12
20
32
40
43
44
53
52
51
54
31
30
29
23
27
16
15
41
44
Q1
+4.9V
Q81
+7.3V (B4)
REGULATOR
TO MAIN SECTION
XOUT
EFMO
EFMIN
CLV+
JP–
CONT2
CONT1
27
26
SOL
SPH/L
RCHO
RVSS
LVSS
LCHO
VVDD
VDD
LVDD
RVDD
XVDD
TO MAIN
SECTION
5
1
TR+
TR–
FO–
FO+
SL+
SL–
SP–
SP+
32
22
17
CONSTANT
VOLTAGE
1
3
2
IC99
OPTICAL
FIBER DATA
LINK
+4.9V
31