Sharp CD-E500 Service Manual page 18

CD-E500
CD-E55/E44
TO MAIN SECTION
CNS205 3 2 1 6
45
75
69
57
56
55
51
50
44
43
SERVO/SIGNAL CONTROL
40
37
28
19
6
XOUT
48
XIN
49
5 18 38
+3.3V
CONSTANT
VOLTAGE
+3.3V
Q411
5
4 3 2 1 CNS204
CONSTANT
VOLTAGE
Q412
64 63 62 67 66 65
42 68 41 46
IC401
LC78646E
CONT4
CONT5
SLDO
SPDO
FDO
TDO
80
47 77 7 8 9 79
11 10
LASER
DRIVER
Q409
Figure 18 BLOCK DIAGRAM (3/4)
CNP405 11 10 9 8 7 6 5
Q401,402
+7V Q403,404
61
Q405,406
Q407,408
25 2 MUTE
26
23 4
FOCUS/TRACKING/
22 12
21 19
20 27
+7V
1
VCC
30 VCC
29 VREF
25 26
+3.3V
NM802
SPINDLE
MOTOR
NM801
SLED
MOTOR
– 18 –
4 3 2 1
SW401
DISC
UP/DOWN
SW402
OPEN/CLOSE
SW403
DISC NO.
SW404
DISC 1
+
M402
M
ROTATE
MOTOR
–
–
M
+
M401
UP/DOWN LOADING
MOTOR
IC402
LA6548D
24
SPIN/SLED
22
DRIVER
9
7
20 21 15 14
6 5 11 10
+3.3V
+
M
–
–
SW1
M
PICKUP IN
+