Sharp CD-BA1500H Service Manual page 18

CD-BA1500H
A
Vref
B
C
D
E
TR-
TR+
TR+
FO+
FO+
FO-
GND
FO-
F
TR-
ACTUATOR
PICKUP UNIT
G
CD MOTOR PWB-C
CNP3A
M1 +
M
SPINDLE
MOTOR
-
+
M2
M
SLED
MOTOR
-
SW4
PICKUP IN
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 20.
1
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CD SIGNAL CD SERVO PWB-B
Vcc
7 7
7 7
6 6
6 6
E
R51 68K
5 5
5 5
A
R52 68K
4 4 4 4
B
R53 68K
3 3
3 3
F
R54 68K
2 2 2
2
R56
68K
C
1 1 1
1
+B
C51
C53
47/6.3
0.001
R47
3.3
Q3
KTA1266GR
LASER DRIVER
C52
0.01
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
PD
VR
7 7
7 7
VR
LD
8 8 8 8
LD
CNP2
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(D)
1 1 1 1
CNP3
2 3
Figure 24 SCHEMATIC DIAGRAM (1/10)
+B
R50
47
TIN1
FIN1
FIN2
IC1
TIN2
LA9235M
R55
SERVO AMP.
68K
FIN1
1
REF
FIN2
2
REF
TIN1
3
C55
C54
REF
47/10 0.01
TIN2
4
C6
100/10
REF
REF1
C7
5
10/37 REF
VREF
C8 6
0.1
ODRV
7
APC
LDD
8
GND
9
LDON
REF
10
11
ODRV
+B
AGON
12
AGCON
REF
R25
EFBL
13
10K
REF
REF
TEST0
14 LPF
TES1
REF
15
+B FOCUS/TRACKING/
SPIN/SLED DRIVER
TDO
TO
1
FDO
FD
2
FO 3
C46
0.022
FO+
4
FO-
5
TR+
6
TR-
7
8
9
10
GND
11
12
13
14
SL-
15
SL+
16
SLDO
17
+B
VCC1
18
STANDBY
R48
19
6.8K
Vref
20
MUTE
21
C50
100/16
+B
4
– 24 –
C11
47/6.3
VCC
30
C12
ODRV
0.1
RFSW
REF 29
R42
C18
R7
120K
3P
6.8K
AGCON
RF-
(CH)
28
R6
R5
C20
27K
39K
0.1
REF RF
5
27
PH
NC
26
C13
PH
0.01 C17
25
0.0047
DH
BH
24
C14
0.33
23
RFEV
22
PH/BH
R3
REF FE-
21
LPF
100K
FE
20
REF
R4
TE-
19
LPF
10K
TE
18
REF
HFL
C82
17
0.022
16
TEST
4
13
IC3
M63001FP
+B
LD_M+
42
+
-
LD_M-
+
- 41
VCC4
+ 40
+
LOADING M+
+
39
LOADING M-
38
37
36
35
34
33
GND
32
31
30
29
VCC3
28
SP-
27
SP+
+
26
+
SPDO
SPO
25
+
+
VCC2(SPN)
+
+ 24
23
-
- 22
5 6
C23
0.047
C24
2.2/50
C22
100P
R10
R80
27K 1M
R15
R8
330
10K
C42
68P
C28
47/1
C41
100/10
+B
C47
100/16
+B