Block Diagram - Sharp CD-BA1200H Service Manual

75 76
65
CE
66 CL
DI
67
68
DO
69 INT
70
WRQ
71
RES
72
DEF
52
XOUT
XL1
16.9344MHz
51 XIN
VDD5V
73 5 18 36 44 49 50
CONSTANT
VOLTAGR
Q1
30
+3.3V
23
11
9
1 2
+5V
TO MAIN SECTION
(TO IC601)
1 2
3 4 5 1 2
Q2
45 46 47 48 32 31 30
74
64
40
19
13
IC2
3
LC78641E
SERVO/SIGNAL
CONTROL
CONT5 33
26
SLDO
25
SPDO
24
FDO
TDO
23
7 14 15 16
17 18 19 20 21 22
IC1
LA9235M
SERVO AMP.
LASER
DRIVER
3 4 7 8
Figure 17 BLOCK DIAGRAM (1/3)
TO DISPLAY SECTION
5 7 8 9 10
3 4 6
Q3 +3.3V
M1
SPINDLE
MOTOR
M2
SLED
MOTOR
– 17 –
SW1 SW2
OPEN/ CLAMP
CLOSE
1 2
3
1 2
3
1 2
3
1 2 17 25 41 42 38 39
18
VCC1
IC3
40 M63001FP
VCC4
FOCUS/TRACKING/
24
SPIN/SLED DRIVER
VCC2
23
28 VCC3
4 5 6 7 15 16 26 27
M
M
CD-BA1200H
SW3
DISC
NUMBER
M3
T/T
M
UP/DOWN
MOTOR
-
4 5 6
5 6
4
5 6
4
35
29
22
21
14
8
SW4
PICKUP IN