Sharp MD-C2 Service Manual page 54

MD-C2
A
CNS1B
5 CNS1A
K
1
4 1
E
2
3 2
A
B
2 3 3
B
4
1 4
F
5 5
CNP1
C
PICK-UP UNIT(306)
VR1A
C2A
1/16
K 5
4
E
A 3
D
2
B
1
F
2200P
1
2 TR+
FO+
3
4
5
E
6
FO–
TR–
7
8
ACTUATOR
CNS2B CNS2A
TR-–
1 1
TR+
2 2
FO+
3 3
FO–
4 4
GND
5 5
F
PD
6 6
VR
7 7
LD
8 8
CD MOTOR
PWB–F
G
MK02
6
M
SPINDLE
MOTOR 5
4
MK03
M
SLED
3
MOTOR
2
1
SW4
PICKUP IN CNP3A
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 29.
1
R2
1K
+B
C1
C15
47/16
0.01
Q1
KTA1266 GR
R1
C2
22
0.01
K
2.5V
1
A
2.5V
2
B
E
2.5V
3
F
2.5V
4
C4
0.1/50
2.5V
5
R8
R9 15K
2.5V
6
100K
C54
TE 2.5V
7
0.001
C5
R10
2.5V
0.033
2.2K
8
R11
C6
2.5V
6.8K
0.033
9
R12 C7
100
0.1/50
C8
0.068 2.5V
10
R13
C9
1K
0.047
2.5V 11
2.5V
12
R14
R15
27K
12K
2.5V
R16
13
3.3K
2.5V
14
2.5V
15
2.5V
16
R17
33K
C11
0.1
VREF
C12
0.1
FOCUS/TRACKING/SPIN
/SLED/LOADING DRIVER
TO
FD
FO (GAIN)
C76 FO+
0.022
FO–
TR+
TR-– TR–
1
TR-–
TR+ GND
2
TR+
FO+ GND
3
FO+
FO– GND
4
FO–
GND
5
GND
GND
6
PD
GND
VR 7
LD
GND
8
LD
SL–
CNP2
SL+
C36 SLD
100/16
+B
VCC1
STANDBY
Vref
C55
100/16
SP–
6
6 6
SP+
5 5 5
SL_+
4 4 4
SL_–
3 3 3
CD_PUIN
2 2 2
1 1 1
CNP3
2 3
Figure 54 SCHEMATIC DIAGRAM (13/16)
64 63 62 61 60 59 58 57 56
LDS LDO
–
+
FIN2
RF
+
–
–
REF
+
REF
FIN1
– FE1 +
– DEF
REF
+ –
+
E
REF
+
HFL
–
F
VCR
VCR
REF –
+
+
DRF
–
TB
–
VCR
+
IC1
VCR
REF –
TE–
+
LA9241M
TE
SERVO AMP.
REF
+
–
+
REF
–
VCC
TESI
+
–
REF
SCI
+
+ –
– TGL1 REF
GL
THDL
THD
FSTA
REF REF
TH
JP
NC
FSC
TD–
REF
REF
+ FOSTA
GEN
–
TO
GEN
REF
+
–
TD
+
GEN
–
JP
+
TO
–
FD
17 18 19 20 21 22 23 24 25 26
2.5V
2.5V 0V
C17
R18
0.001
15K R26
R30
82K
6.8K
C14
0.01
R27 R31
R24 R25
39K 1.2K
47K
1.5K
IC3
M63001FP
LD_M+
42
1 IN2– 2.5V 0.1V IN6+
LD_M–
2.6V 41
2 IN1A– 0.1V IN6–
VCC4
2.9V 40
3 IN1B– 7.2V VCC4
M+
3.3V 39
4 OUT1– 3.3V OUT6–
M–
3.3V 38
5 OUT1+ 3.3V OUT6+
SOL–
3.3V 37
6 OUT2– 5.3V OUT5–
SOL+
3.3V 36
7 OUT2+ 5.3V OUT5+
GND
8 0V 35
GND 0V GND
GND
9 0V 34
GND 0V GND
GND
C82
10 0V 33
GND 0V GND
100/16
GND
11 0V 32
GND 0V GND
GND
C77
12 GND 0V GND 31
0V
100/16
GND
13 GND 0V GND 30
0V
GND
14 GND 0V GND 29
0V
VCC3
15 OUT3+ 3.3V VCC3 28
11.2V
SP+
16 OUT3– 3.3V OUT4+ 27
3.3V
SP–
17 IN3– 3.0V OUT4– 26
3.3V
SPO
18 VCC1 7.2V 2.5V IN4– 25
VCC2 (SPN)
19 STANDBY 5.0V 7.2V VCC2 24
SOLD
20 VREF 2.5V IN5+ 23
0V
SOL–
21 MUTE 0V IN5– 22
0V
4
– 54 –
+B
55 54 53 52 51 50 49
NC 48
0V
TBC 47
EFBAL
2.5V
FSC 46
FOSTA
0V
DGND
45
TOSTA
CE
REF 2.4V
SLI
44
2FREQ
CL
C26
LASER
0.033
FSTA
R41
8/12CM
47K
2.4V
SLC
43
SLOF
C25
R40
27P
5.6K
2.4V
42
RFS–
REF
CV–
+
–
CV+
RFSM 1.6V
41
RF
HF
R38
JP–
TP1
470
+
JP
–
0V
CV+
JP+ 40
0V
CV–
JPCLO 39
5.0V
SLOF
38
OR
0V
HFL
37
REF
TES 0V
+
36
–
5.0V
TOFF
35
5.0V
+ TGL
34
–
0V
JP+
33
27 28 29 30 31 32
R32
R33
10K
1.2K
C21
0.0033
R36
220K
R34
R35
1K
220K
GND
R37
82K
+B
CNP12
5
C28
0.1
R44
33K
R42
47K
R39
1K
C23
0.0027
C22
220P
C35
1/50
D1
1SS133
+B
+B
1 2 3 4 5 6
TO
6