Sharp CD-C831W Service Manual page 22

CD-C831W
A
K 5
E 4
A 3
B
B 2
F 1
C
LD
MON
K
E
B
LD GND
A
F
C
LT0H30M1
TR+
D FO+
FO–
TR–
ACTUATOR
PICKUP UNIT
E
TR–
TR+
FO+
FO–
GND
PD
VR
LD
F
CD MOTOR PWB-D
+
M1
M
SPINDLE
MOTOR –
+
M2
M
G
SLED
MOTOR –
SW4
PICKUP
IN
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
1
R2
1K
C1
C15
47/16
0.01
Q1
2SA1318
9
K
1 1
A
2 2
B
3
3
E
4 4
F
5 5
C4
CNP1
0.1/50
R9
TE
100K
R10
C54
2.2K
0.001
R11
6.8K
R12
100
R13 C9
1K 0.047
R15
R14
12K
27K
5
K
R16
4 E
3.3K
3 A
B
2
F
1
8
TR–
1
TR+
2
FO+
3
FO–
4
GND
5
6
PD
7 VR
8
LD
C12
0.1
CNS2B CNS2A
TR–
1 1
1
TR+
2 2 2
FO+
3 3 3
FO–
4 4 4
5 5 5
6 6 6
7 7 7
LD
8 8 8
CNP2
C36
100/16
C55
100/16
+B
SP+
6 6 6 6
SP–
5 5 5 5
SL_+
4
4 4 4
SL_–
3
3 3 3
CD_PUIN
2
2 2 2
1 1 1
1
2
Figure 22 SCHEMATIC DIAGRAM (7/9)
R1
22
C3
1/50
64 63 62 61 60
59
LDS
–
FIN2
RF
1
REF
–
REF
FIN1
2
FE1
–
EREF –
REF
3
F
4 VCR
VCR
REF –
TB
5
R8 – VCR
15K VCR
TE– REF –
6
TE
7
REF
C5
REF
0.033
TESI
8
C6
0.033
SCI
9
TGL1
C7
GL
THDL
0.1/50
TH
1 0
THD
C8
0.068
+
11
JP
FSC
12 REF FOSTA
GEN
TD–
TO
GEN
REF
TD
13 REF GEN +
JP
14
REF
TO
+
15
FD
16
FD– FA FE
R17
17 18 19 20 21 22 23
33K
R18
C11 R26
15K
0.1 82K
C14
0.01
R27
R24 R25
1
39K
47K 1.5K
VREF
1 TO LD_M+
42
2 FD LD_M– 41
FO (GAIN) VCC4
3 40
C76
FO+
4 M+ 39
0.022
FO– M–
5 38
6 TR+ SOL– 37
SOL+
7 TR– 36
8 35
9 34
33
10
GND GND
11 32
12 31
30
13
14 29
SL–
VCC3
15 28
SL+
16 SP+ 27
SLD SP–
17 26
VCC1 SPO 25
18
19 STANDBY (SPN)VCC2 24
Vref SOLD
20 23
SOL–
21 MUTE 22
3 4
– 22 –
55 54 53 52 51 50 49
58 57 56
NC 48
2
TBC 47
EFBAL
DEF
FSC 46
FOSTA
–
HFL DGND
45
TOSTA
CE
REF SLI
44
2FREQ
CL
DRF
LASER
IC1
LA9241M FSTA
SERVO AMP.
8/12CM 3
SLC
43
SLOF
VCC
RFS–
42
REF
REF
CV–
+
CV+ RFSM
REF
RF 41
FSTA
REF JP–
4
JP
CV+
JP+
40
JPCLO
CV–
39
SLOF SLOF
SLOF
REF +
38
10
OR
5
HFL
37
REF TES
+
36
TOFF
35
TGL
34
JP+
33
SLEO SLD
SP–
24 25 26 28 29 30 31 32
27
C17
0.001
R36
220K
R33 R32
1.2K 10K
R30
R31
6.8K
1.2K
R34
1K
R35
220K
C18
0.47/50
+B
C82
100/16
C77
100/16
+B
+B
5
C28
0.1
R44
C26
33K
0.033
R41
R42
47K
47K
C25
R40 R39
27P
5.6K 1K
R38
470
HF
C23
TP1
0.0027
6
C22
220P
7
C57
GND
0.00
C35
1/50
D1
R37
1SS133
+B
82K
+B
+B
+B
+B
CNP12
1 2 4
3 5 6 7
CN
P21
TO DISP
6