Sharp CD-E500 - Page 18

CD-E500
CD-E55/E44
– 18 –
Figure 18 BLOCK DIAGRAM (3/4)
+7V
+7V
M402
ROTATE
MOTOR
M401
UP/DOWN LOADING
MOTOR
+
–
+3.3V
+3.3V
TO MAIN SECTION
CONSTANT
VOLTAGE
CONSTANT
VOLTAGE
Q411
Q412
Q401,402
Q403,404
Q405,406
Q407,408
LASER
DRIVER
+3.3V
+3.3V
Q409
CD PICKUP UNIT
IC401
LC78646E
SERVO/SIGNAL CONTROL
VDD LDD LDS
M
+
–
M
CNP405
CNS205
CNS204
TRACKING COIL
FOCUS COIL
SW1
PICKUP IN
SW403
DISC NO.
SW404
DISC 1
NM801
SLED
MOTOR
NM802
SPINDLE
MOTOR
M
M
XVDD
RVDD LVDD
RFVDD
XL401
16.9344 MHz
CD RES
CL DI DO
CE ROTATE UP_SW DOWN_SW OPEN_SW DISC NO._SW DISC 1_SW CLOSE_SW
DRF
VWRQ
MGND
VCC
VCC
IC402
LA6548D
FOCUS/TRACKING/
SPIN/SLED
DRIVER
XIN
XOUT
RES
VWRQ
DO
DI
CL
CE
TIN2 F TIN1 E FIN2 B FIN1 A
TDO
FDO
SPDO
SLDO
CONT5
CONT4
VDD5
LCHO
80
79
75
20
5
1
MUTE
2
30
VREF
REG_IN REG_OUT
29
9
7
22
24
41
47
46
38
VVDD
77
10
VREF
11
987
6
25 2120 141526
51110
11 810 9 6745231
616263
69
57
56
55
51
50
43
44
40
37
19
6
28
26
25
23
22
21
27
4
12
19
312
+7V (+B5) DGND
L-CH
1
5
64
AGND
R-CH
32
42
RCHO
45 68
64 6566
DRF
67
48
49
ADAVDD
18
~~
+
–
–
+
+5V
E
VCC
VC
C A B C F
LD MD
DISC
UP/DOWN
OPEN/CLOSE
SW401
SW402