Sharp CD-BP1450V Service Manual page 16

CD-BP1450V
A
Vcc
7
Vref
6
B
E
5
A
4
B
3
F
2
C
1
C
D
E
TR-
1
TR+
TR+
2
FO+
FO+
3
FO-
4
GND
5
FO-
6
PD
TR-
7
VR
8
ACTUATOR
LD
F
PICKUP UNIT
CD MOTOR PWB-C
G
M1
+
SPINDLE
M
MOTOR
-
+
M2
M
SLED
-
MOTOR
SW4
PICKUP IN
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 32.
1
CD VIDEO PWB-B(2/2)
7 7 7
6 6
6
R51 68K
5 5
5
R52 68K
4 4 4
R53 68K
3 3 3
R54 68K
2 2 2
1
1 1
CNP1
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
7
7 7
LD
8
8 8
CNP2
FOCUSE/TRACKING/
SPIN/SLED DRIVER
CNP3
CNP3A
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
2
Figure 16 SCHEMATIC DIAGRAM (3/11)
+B
R50
47
TIN1
FIN1
FIN2
TIN2
R55
R56
68K 68K
FIN1
1
REF
FIN2
2
REF
TIN1
3
REF
TIN2
4
C6
100/10
C8 REF1
5
0.022
VREF
6
C7
7
10/16
LDD
8
GND
9
LDON
10
C53
C51
R25
11
0.001
47/6.3
10K
AGON
12
EFBL
13
TEST0
R47
NC
14
3.3
TES1
15
Q3
KTA1504 GR
LASER
DRIVER
C52
0.01
IC3
+B
R48
6.8K
C50
100/6.3
+B
3 4
– 16 –
CD SIGNAL
IC1
LA9235M
C11
SERVO AMP.
47/6.3
VCC
C12
30
0.022
ODRV
RFSW
C18
REF R42
29
3P
NC
120K
(CH)
AGCON
RF–
28
R5
39K
REF RF
PH
27
NC C13
REF 26
0.01
PH
25
REF
DH
C14
BH
24
0.33
ODRV
23
APC
RFEV
PH/BH
22
REF
FE–
21
LPF
FE
R3
REF
REF 20
82K
TE–
ODRV LPF 19
TE R4
AGCON
18
REF
18K
REF
HFL
REF
17
REF
NC
LPF
16
REF TEST
4
13
TDO TO
1 + –
+
FDO FD
+
2
FO
+
C46 3
NC
FO+ +
0.022
4
FO–
5
TR+
6
TR–
7
8
9
10
GND
11
12
13
14
SL–
15
SL+
16
SLDO
+
17
+
VCC1
+
18
STANDBY
+
19
Vref
+
20
MUTE
21
C49
100/6.3
5
S
8
C23
R12
0.047
680
5
R79
1.5M C24
2.2/50
C21
0.1
R11
12K
R10 R80
27K
1M
R
1
C20
R15
0.1 10K
R8
330
C
C17
0
C42
0.0047
68P
C26
(CH)
0.047
PH
C82
0.022
C41 C28
47/10
100/6.3
R
1
LD_M+
42
+ – LD_M–
41
VCC4 +B
+ – 40
LOADING M+
39
LOADING M–
38
NC
37
C47
NC
36
100/6.3
35
34
33
GND
32
31
30
29
VCC3
+B
28
SP–
27
SP+
26
SPO
SPDO
25
+
VCC2(SPN)
+
24
23
+
22
+B
6