Schematic Diagram / Wiring Side Of P.w.board - Sharp CD-BA250 Service Manual

CD-BA250/CD-BA2600
PICKUP UNIT
A
VCC
VREF
B
E
A
B
F
C
C
TR–
TR+
TR+
FO+
FO+ FO–
D
FO–
PD
TR–
VR
LD
GND
CD MOTOR PWB-F
E
M1
+
SPINDLE
M
SPIN
MOTOR
–
M2
+
SLED
M
SLIDE
MOTOR
–
SW4
PU-IN
PICKUP IN
F
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 37.
1
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CD SERVO PWB-C
VCC
7 7 7 7
VREF R6
6 6 6 6
33K
E
5 5 5 5
A R5
4 4 4 4
12K
B R4
3 3 3 3
12K
F
R3
2 2 2 2
33K
C
1 1 1 1
CNP1
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
SP+
1 1
6 6
SP–
2 2 5
5
SL+
3 3 4
4
SL–
4 4
3
3
PUIN
2
5 5 2
GND
6 6 1
1
2 3
Figure 20 SCHEMATIC DIAGRAM (1/9)
CD SIGNAL
C38
0.01
C39
100/10
MUTE
21 20 19 18 17 16 15
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
4
– 20 –
R7
47
0.047(ML)
R10
27K
C6
0.1
R12
330
TP3 C7
100P
0.0047
C50
TP2
22P
(CH)
C9
100/10
C12
100P
9 8 7 6 5
14 13 12 11 10
IC2
M63001FP
FOCUS/TRACKING/
SPIN/SLED DRIVER
C41
100/10
5 6
C5
1
2
3
4
C8
5
6
7
TP1
8
9
10
C10
11
10/50
12
13
C11
14
0.22/50
15
4
16
17
18
19
20
2
1
4 3 2
L