CD-MPX880H - Sharp Audio Service Manual (repair manual). Page 16

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CD-MPX880H
4 – 3
[2] CD Block Diagrams
Figure 4-3: CD BLOCK DIAGRAM
18
 
19
68
52
51
74
78
75
76
8
7
6
5
21
37
26
20
40
32
24
25
22
23
54
55
56
77
71
67
57
73
72
49
48
47
46
45
44
43
PUIN
DRIVER
SPIN/SLIDE
FOCUS/TRACKING/ 
LA6261 
IC2 
VIN4
FWD6
VO6+
VO6-
VO5+
VO5-
REV6
VIN3
VIN2
PVCC1
SVCC
PVCC2
VCONT6
VCONT5
VIN1
REV5
REG IN
REG OUT
FWD5
IC1
LC78690E
CD SERVO
LCHO
RCHO
CONT1
CONT0
SLDO
SPDO
FDO
TDO
LDD 
LDS 
DIN
BIN
14
13
FIN
EIN
CIN
AIN
LR
VDD
XVDD
DVDD
DVDD
DVDD
36 41
AV
D
D
XIN 
XOUT
INTB1
INTB0
66
38
DVDD 1.8
DVDD 1.8
RESB
DO
DI
CL
CE
TO  DISPLAY  SECTION
TO  MAIN  SECTION 
CNP3
CNP7
M1
TRA
Y
 MOT
O
R
MGND 
PICKUP
  UNIT
 
IN
PICKUP
NSW 1 
+3.3V
MOTOR 
SPINDLE 
NM1
MOTOR 
SLED
NM2
COIL
TRACKING
FOCUS  COIL
16.9344 MHz 
XL1 
+7.5V 
DRIVER
LASER  
+3.3V 
CONSTANT
VOLTAGE 
+3.3V 
+3.3V 
Q1
R-CH
AGND
L-CH
D_+5V(+B5)  
+5V
GND
PHOT
O
MO_A-
CD_RES
MO_A+
CD_DI
CD_DO
CD_CLK
CD_CE
-
-
+7.5V 
7
27
28
24
21
9
17
15
13
11
23
22
32 33
31
34
30
19
20
26
8
10
4
5
6
Q2
Q3
3
36
35
2
1
1 2 3  4 5 6 
10  
MP3_INT
11
CD_INT
12
TRA
Y
 SW1/SW2
GND
RX1
SW3 TRA
Y
 SW2
SW2 TRA
Y
 SW1
SW1 CLAMP
SW4 DISC
PHOT
O
5V
13
DISC/CLAMP
14
1 9 
5
2 4 
CNP4
10   11
1 9 
5
2 4 
53
M2
MAIN CAM
 MOT
OR
M
M
42
DGND
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