Sharp CD-E99 Service Manual page 20

CD-E99
A
1
PICKUP UNIT
HPC1LX
B
VCC
7
VREF
6
E
5
A
4
B
3
F
2
C
1
C
TR–
1
TR+
2
TR+
3
FO+ FO+
4
D
FO–
5
PD
TR–
6
VR
7
LD
8
GND
CD MOTOR PWB-D
CNP3A
+
M1
E
M
SPINDLE 6
MOTOR
–
5
M2
+
4
SLED M
MOTOR 3
–
SW4
2
PICKUP IN
1
F
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 8.
1
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CD SERVO PWB-C
CD SIGNAL
VCC
7 7 7
VREF
6 6 6
E R6 22K
5 5 5
A R5 8.2K
4 4 4
B R4 8.2K
3 3 3
F
R3 22K
2 2 2
R1
C
1 1 1
8.2K
CNP1
C1
47/25
TR–
1 1 1
TR+
2 2 2
FO+
3 3 3
FO–
4 4 4
GND
5 5 5
PD
6 6 6
VR C38
7 7 7
0.01
LD
8 8 8
CNP2
SP+
6 6 6
SP–
5 5 5
SL+
4 4 4
SL–
3 3 3
PUIN
2 2 2
GND
1 1 1
C41
100/10
2 3
Figure 20 SCHEMATIC DIAGRAM (9/10)
R7
47
C3
R9
47/25
10
C4
0.001
C21
0.001
+B
CONSTANT
VOLTAGE
+B
15 16 17 18 19 20 21 29 22 23 24 25 26 27 28
14 13 12 11 10 9 8 30
+B
+B
4
– 20 –
+B
+B
R42
1.2K
C5
0.047(ML)
R10
27K
LDD
80 79 78 77 76 75 74
C6
1
SLCO
0.1
2
SLCIST
R12
3
EFMIN
330
4 RF
5
C19
C8
+B 5
RFVDD
0.022 0.0027
6 RSVSS
7
FIN1 A
TP1
C45
8
FIN2 B
22P(CH)
TP2
9 TIN1 E
TIN2 F
10
(OS)
11 VREF
C9 12 REF1
C10
3.3/16
10/25 FE
13
TEC
14
C11
4
0.22/50 TE
15
RFMON
C12 16
100P
17 JITTC
ADAVDD
18
ADAVSS
19
C43
TDO
20
0.022
FDO
R13
21 22 23 24 25 26
2
15K
R14
1K
R15
1K
+B
1
C40
C39
100/10
100/10
+B
7 6 5 4 3 2 1
C17
100/10
+B
C48
0.001
5 6
C3
C3
C2
C2
C2
27
6
R16 R1
1K 1K
R8
10K