Sharp CD-C290X Service Manual page 26

CD-C290X
A
B
C
LD
K
E
B
LD GND
A
220P
F
C
1M
D
LTOH30M1 0.0022
1M
TR+
FO+
FO–
TR–
ACTUATOR
PICKUP UNIT
E
F
CD MOTOR PWB-F
M1
M
DISC
MOTOR
M2
M
SLED
MOTOR
SW4
PICKUP IN
G
H
• The numbers 1 to
• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
1
R1 1K
C1
C2
0.01
47/16
C25
0.01
5
K
K
4 1 1
E
A
3 2 2
A
B
2 3 3
B
E
1 4 4
F
F
5 5
C3
0.1/50
C4
0.001
R6
100
R7 C9
0.047
1K
R9
27K
R11
MON
3.3K
5
K
4
E
3
A
2
B
1 F
1
TR–
2
TR+
3 FO+
4
FO–
5 GND
6 PD
7
VR
C11
8
0.1
LD
1 1 1
TR– TR–
2 2 2
TR+ TR+
3 3 3
FO+ FO+
4 4 4
FO– FO–
5 5 5
GND GND
6 6 6
PD PD
7 7 7
VR VR
8 8 8
LD LD
SP+
6 6 6 6
SP–
5 5 5 5
SL+
4 4 4 4
SL–
3 3 3 3
PU-IN
2 2 2 2
1 1 1 1
12 are waveform numbers shown in page 16.
2 3
Figure 26 SCHEMATIC DIAGRAM (4/11)
+B
Q1
R43
KTA1266 GR
12
C24
1/50
64 63 62 61 60
LDO
LDS
–
9
FIN2
1
REF –
FIN1
2
FE1
–
REF –
E
REF
3
F
VCR
4
REF VCR
–
TB
5
R3
R2
15K
VCR
REF
TE– –
100K 6
TE
TE
7
C5
REF
–
0.033
R4 REF
2.2K
TESI
8
R5 C6
0.033
6.8K
SCI
9
C7
REF
0.1/50
TH
10
C8
0.068
+
JP
11
12
REF
+ FOSTA
GEN
TD–
–
GEN
R8 C10 TO
+
12K 180P
–
TD
13 +
GEN
–
JP
14
+
TO
+ –
15
FD
16
R13
8
17 18 19 20 21 22 23
33K
R12
C13 R17
15K
0.1 82K
C14
0.01
R15
R16
47K
1
1.5K
VREF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
C44
16
100/10
17
18
+B
4
– 26 –
2
59 58 57 56 55 54 53 52 51 50
–
REF
EFBAL
DEF
–
FOSTA
–
HFL
TOSTA
CE
2FREQ
DRF
–
CL
LASER
–
VCR
IC1
FSTA
LA9241M 8/12CM
SERVO AMP.
SLOF
–
VCC
–
CV–
REF
–
–
TGL1
–
CV+
REF
REF
JP–
GL
JP
–
THDL
JP+
JPCLO
FSC
OR
SLOF
REF
REF
–
–
REF
SLD
24 25 26 27 28 29 30 31 32
12
R22
R24
6.8K
R23 R25
10K
R19
1.2K 1.2K
39K
R30
15K
10
36
35
34
33
32
31
30
29
28
27
26
25
24
R31
23
10K
22
21
20
19
5
+B
49
48
C50
0.1
TBC 47
FSC
46
DGND
45
R38
SLI
REF 44
33K
C34
0.033
3 R37
R36
47K
47K
43
SLC
C32
R33
R34
27P
5.6K
RFS– 1K
42
REF
R32
56K
41
RF
RFSM
HF
R35
C31
4
TP1
470
0.0027
CV+
40
CV–
39
SLOF
38
HFL
37
TES
36
TOFF
35
TGL
34
JP+
33
6
7
R27
220K
GND
D2
C21
1SS133
1/50
R10
82K
+5V
R54
1K
CNS702
11
6