MD-E9000H
– 38 –
Figure 38 BLOCK DIAGRAM (1/4)
+3.2 V
IC1
LC78645NE
CD SERVO
+5V
+B2
M1
SPINDLE
MOTOR
M2
SLED
MOTOR
SPINDLE MOTOR
SLED MOTOR
SW4
PICKUP IN
IC2
LA6548D
FOCUS/
TRACKING/
SPIN/ SLED
DRIVER
VCC
VCC
OUT1
OUT2
–
+
+
–
VREF
MUTE
VOLTAGE
CONSTANT
Q2
+
–
M
Q3
+3.2 V
DRIVER
LASER
Q1
XL1
33.8688 MHz
XIN
XOUT
VDD5
RFVDD
LVDD
ADAVDD
XVDD
RVDD
FIN1
FIN2
TIN1
TIN2
LDS
LDD
VREF
TDO
FDO
SPDO
SLDO
CONT5
CONT1
CONT2
CONT3
CONT4
DOUT
LRCK
BCK
DATA
DRF
RES
WRQ
DO
DI
CLK
CE
3 V
5 V
CD RES
CLK
DI
DO
CE
DRF
WRQ
PICKUP UNIT
TRACKING COIL
FOCUS COIL
IC3
TA7291S
TO MD SECTION
IC4
74VHC08F
INVERTER
CNP5
TO DISPLAY SECTION
30
1
15
21
20
10
11
26
25
6
5
12
4
27
19
29
2
1
2
2
1
9
7
3
8
5
2
6
1
3
3
5
4
6
6
2
11
1
14
10
13
4
1
7
6
5
4
3
2
1
5 41
18
VDD
38
47
7
8 9 10 79 80
11
26
23
22
21
20
19
28
37
40
50
51
55
56
57
69
75
72
71
70
25
39
58
59
60
49
48
68
67
66
65
64
63
62
61
46
VVDD
77
M
M
M904
CD LID
MOTOR
+5 V
LOADING MOTOR
DRIVER
CNS1
+B2 (5V)