Read Sharp CD-XP300 (serv.man22) Service Manual online
– 19 –
CD-XP300H
Figure 19 BLOCK DIAGRAM (1/3)
+5V
(+B7)
(+B7)
CNS4
BI4
CNP4
M3
CD LOADING
MOTOR
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
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
9
8
7
15
1
2
17
25
42
41
39 38
4
7
6
5
16
28
26 27
3
1
6
4
5
2
3
1
6
4
5
2
3
1
6
4
5
2
5
4
71
61
62
63
69
57
56
55
51
50
43
44
40
37
19
28
26
23
22
21
3
2
7
1
6
8
9
10
6
8
7
+5V (+B7)
D_GND
L-CH
3
5
4
A_GND
R-CH
1
2
42
45
68
25
70
64
65
66
DRF
67
48
49
ADAVDD
18
+3.3V
(+B11)
(+B11)
DISC NO
~
~
ZD1
3.3V
+
–
–
+
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