Sharp CD-XP500 Service Manual page 30

CD-XP500/CD-XP5500
A
PICKUP UNIT
B
PICKUP
HPC1LX
VCC
VREF
E
A
B
F
C
C
TR–
TR+
TR+
FO+
FO+
D
FO–
PD
TR–
VR
LD
GND
CD MOTOR PWB-D
+
M1
M
SPINDLE SPIN
E
–
MOTOR
+
M2
M
SLED SLIDE
MOTOR –
SW4
PU-IN
PICKUP IN
F
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.
1
CD SERVO PWB-C
CD SIGNAL
VCC
7 7 7 7
VREF
6 6 6 6
E R6 22K
5 5 5 5
A R5 8.2K
4 4 4 4
B R4 8.2K
3 3 3 3
F
R3 22K
2 2 2 2
C
R1
1 1 1 1
8.2K
C1
47/25
TR–
1 1 1 1
TR+
2 2 2 2
FO+
3 3 3 3
FO–
4 4 4 4
GND
5 5 5 5
PD
6 6 6 6
VR
7 7 7 7
LD
8 8 8 8
+B
SP+
6 6 6 6
SP–
5 5 5 5
SL+
4 4 4 4
SL–
3 3 3 3
PUIN
2 2 2 2
GND
1 1 1 1
+B
2
Figure 30 SCHEMATIC DIAGRAM (9/10)
+B
+B
R9
3.3
0.001
C38
0.01
+B
C39
100/10
MUTE
21 20 19 18 17 16 15
14
FOCUS/TRACKING/
SPIN/SLED DRIIVER
22 23 24 25 26 27 28 29 30 31
+B
3 4
– 30 –
R7
47
+B
C5
R11
0.047
10K
R10
27K
C6
0.1
C4
TP3
0.001
R12 C8
+B
330 0.0027
C50
TP1
22P(CH)
TP2
C10
C52
10/50
C9
100/10
C53
0.001
C11
C12
0.22/50
100P(CH)
C54
+B
+B
0.022
2
13 12 11 10 9 8 7 6 5 4 3
IC2
M63001FP
32 33 34 35 36 37 39 40
38
C41
100/10
C46
100/10
+B
5
C34 100P(CH
C33 0.022
C32 100P(CH
C30 100P(CH
C57 56P(CH)
C28 100P(CH
C27 0.022
+B
R42
1.2K
80 79 78 77 76 75 74 73 72 71 70 69
1
2
3 EFMIN
8 7
RF
4
5
5 RFVDD
1 D
SLCO
RSVSS
6
2 SLCIST
7 FIN1 A
8 FIN2 B
IC1
TIN1 E
9
TIN2 F LC78645N
10
VREF
11
CD SERV
4
REF1
12
FE
13
ADAVDD
18 L
TEC
14
ADAVSS
L
19
15 TE
TDO
L
20
RFMON
16
6
JITTC
17
18
19
20
21 22 23 24 25 26 27 28 29 30 31 32
1
R14
1K
2 1
R20
10K
R46
820
D2
DS1SS133
3 2
Q3
1
KRC10
42
41
6