Sharp CD-XP300H

– 19 –
CD-XP300H
Figure 19 BLOCK DIAGRAM (1/3)
+5V
(+B7)
CNS4
BI4
CNP4
M3
CD LOADING
MOTOR
+–
+3.3V(+B11)
TO DISPLAY SECTION
TO MAIN SECTION
CONSTANT
VOLTAGE
Q2
LASER
DRIVER
+3.3V(+B11)
Q1
+5V
(+B7)
PICKUP UNIT
IC1
LC78645NE
CD SERVO
VDD LDD LDS
M
SW3
DISC
NUMBER
SW2
CLAMP
SW1
OPEN/
CLOSE
CNP8
CNP7
TRACKING COIL
FOCUS COIL
SW4
PICKUP
IN
M2
SLED
MOTOR
M1
SPINDLE
MOTOR
M
M
Q3
XVDD RVDD LVDD RFVDD
XL1
33.8688 MHz
O/C CLAMP SW CD RES CL DI DO CE DRF WRQ
+6.5V (+B4) D_GND (DRIVER)
+5V (+B8)
VCC3
VCC2
VCC4
VCC1
IC2
M63001FP
FOCUS/TRACKING/
SPIN/SLED
DRIVER
XIN
XOUT
RES
WRQ
DO
DI
CLK
CE
TIN2 F TIN1 E FIN2 B FIN1 A
TDO
FDO
SPDO
SLDO
CONT5
CONT2 CONT3 CONT4
VDD5
LCHO
RCHO
80
79
75
20
5
40
18
24
23
14
8
21
22
29
35
41
47
46
38
VVDD
77
10
987
15
1
2
17
25
42
41 39 38
4765
16
28
26 27
316452
316452
316452
54
71
61
62
63
69
57
56
55
51
50
43
44
40
37
19
28
26
23
22
21
327168910
687
+5V (+B7) D_GND
L-CH
3
5
4
A_GND
R-CH
12
4245 68 25 70
64
65
66
DRF
67
48
49
ADAVDD
18
+3.3V
(+B11)
DISC NO
~~
ZD1
3.3V
+
–
–
+