Block Diagram - Sharp CD-BA1200H Service Manual

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