Sharp CD-K7000W Service Manual page 22

CD-K7000W/C7000W,CP-C7000
A
Vcc
7
Vref
6
E
5
A
4
B
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-
F 7
VR
8
LD
ACTUATOR
PICKUP UNIT
G
CD MOTOR PWB-F
CNP3A
M1 +
6
SPINDLE M
MOTOR
5
-
+
4
M2
M
SLED
3
MOTOR
-
2
SW4
PICKUP IN
1
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
1
CD SERVO PWB-C
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
C53
0.001
Q3
KTA1266GR
LASER DRIVER
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
SP-
6 6 6
SP+
5 5 5
SL+
4 4 4
SL-
3 3 3
PUIN
2
2 2
GND(D)
1 1 1
CNP3
2
Figure 22 SCHEMATIC DIAGRAM (2/11)
+B
R50
47
TIN1
FIN1
FIN2
TIN2
R56 R55
68K
68K
FIN1
1
REF
FIN2
2
REF
TIN1
3
C55
C54
REF
0.01
47/10
TIN2
4
C6
100/6.3
REF
REF1
C7
5
10/16
VREF
6
C8
7
0.022
APC
LDD
+B
8
GND
9
LDON
10
C51
11 ODRV
47/10
+B
AGON
12 AGCON
R25
EFBL
13
10K
R47
TEST0 14
3.3
TES1
15
C52
0.01
+B
TDO
FDO
C46
0.022
+B
R48
6.8K
C50
100/6.3
+B
3 4
– 22 –
IC1
LA9235M
C11
SERVO AMP. 4.7/6.3
VCC
30
C12
ODRV
0.022
RFSW
REF
29
R42
R7
120K
6.8K
AGCON
RF-
28
R5
39K
REF RF
27
PH
NC
26
C13
PH
0.01
25
REF
DH
BH
24
C14
0.33
ODRV
23
RFEV
22
PH/BH
R3
REF FE-
21
LPF
47K
FE
REF 20
REF
R4
TE-
19
LPF
10K
TE
18
REF
REF
HFL
17
REF
REF
16
LPF TEST
REF
4
TO
1
+ -
FD
+
2
FO 3
+
FO+ +
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
5
C23
R
0.047
6
1
C24
2.2/50
C
0
C22
100P R
1
C18
R10 R80
3P
27K 1M
(CH)
R6
C20
27K
0.1
R15
5
R8
330
10K
C17
0.0047
C42
68P
(CH)
C82
C28
0.022 47/6.3
C41
100/6.3
13
+B
LD_M+
42
LD_M-
-
41
+B
VCC4
+ 40
LOADING M+
39
LOADING M-
38
37
C47
36
100/6.3
35
34
33
GND
32
31
30
29
VCC3
28
SP-
27
SP+
26
SPO SPDO
25
+
VCC2(SPN)
24
+
23
- 22
+B
6