Sharp MD-X60 Service Manual page 44

MD-X60
A
B
C
D
E
LTOH41M1
VCC
7
1/2
VCC
6
E
5
A
4
B
3
F
2
C
1
LD
MON
GND
F
1
TR+
2
FO+
3
4
FO–
5
TR–
6
ACTUATOR
7
C3A
8
PICKUP UNIT
G
CD MOTOR PWB-H
M701
6
M
SPINDLE
5
MOTOR
M702 4
M
SLED
3
MOTOR
2
SW702A
1
PICKUP IN
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 62.
1
+B
C2 Q1
R43
47/16 KTA1266 GR
22
4.9V 4.9V
C24
C25
1/50
4.2V
0.01
C
R62
A
82K
FIN2
1
REF
2.5V
R64
B
82K
FIN1
2
2.5V
REF
R66
E
68K 2.5V
3
E
F
2.5V
4
C3
F
R67
0.1/50
68K 2.5V
5
R3 TB
R2
9
2.5V
15K
6
100K
TE–
2.5V
7
TE
TE
C4
C5
0.001 R4
0.033
2.2K
TESI
8
C6
R5 2.5V
0.033
6.8K 2.5V
9
SCI
R6
100 C7
0.1/50
C8
2.5V
TH
10
0.068
2.6V
R7 C9
11
0.047
1K
2.5V
12
TD–
R9
R8
27K
12K
8
13
TD
2.5V
R11
14
3.3K 2.5V
JP
15
2.5V TO
16
FD
R13
33K
C13
0.1
R28
1K
R39
22K
R40
22K
C11
0.1
CNS2A
7 7 7
+B
6 6 6
E
5 5 5
A
4 4 4
B
3 3 3
F
2 2 2
C
1 1 1
CNS2B
CNS1A
TR–
1 1 1
TR+
2 2 2
FO+
3 3 3
FO–
4 4 4
GND
5 5 5
PD PD
6 6 6
VR
7 7 7
LD
LD
8 8 8 C44
100/10
CNS1B
CD_GND
SP+
6 6 6
SP–
5 5
5
SL_+
4 4 4
SL_–
3 3 3
PU_IN
2 2 2
1 1 1
2 3
Figure 44 SCHEMATIC DIAGRAM (7/15)
R42
560
64 63 62 61 60 59 58 57 56
–
RF
+
–
–
REF
FE1
– +
DEF
–
–
REF
+
HFL
–
VCR
VCR
REF –
+ DRF
–
– IC1
VCR
VCR
REF –
LA9241M
SERVO
REF AMP.
–
REF
–
VCC
+
REF
+
TGL1
–
REF
GL
FSTA
REF THD
REF
THDL
JP
+
JP
FSC
+
REF
FOSTA REF
GEN
–
TO
GEN
REF + REF
–
+
+
+
GEN
–
REF
+
+ – –
17 18 19 20 21 22 23 24 25 26
2.5V
C16
R12
0.001
15K
C14
0.01
R22
6.8K
R15
R16
1 R23
R19
47K
1.5K
1.2K
39K
VREF
C17
0.47/50
2.5V
0V
1 VREF-IN STANDBY 36
0V
2.5V
2
RVEF-OUT SS. GND 35
0V 0V
3 NC STANDBY 34
2.5V
0.3V
4
GAIN1 GAIN4 33
2.5V 4V
5 32
VCTL1(–) VCTL4(–)
2.0V
3.8V
6 31
VM1(–) VM4(–)
0V
2.0V
7 VM1(+) VM4(+) 30
0V 0V
8
GND GND 29
0V 0V
9 28
GND GND
0V
0V
10 GND GND 27
0V
0V
11 GND GND 26
2V 2.0V
VM2(+) VM3(+) 25
12
2.0V
2V R31
13 VM2(–) VM3(–) 24
10K
2.5V
2.5V
14 23
VCTIL2(–) VCTIL3(OUT)
2.5V
2.5V
15 VCTIL3(–)
GAIN2 22
0.4V
2.5V
16 NC VCTIL3(+) 21
4.6V
4.6V
VCC VCC
17 20
0V 0.7V
REG5V REGBASS 19
18
4
– 44 –
+B
2
0V
55 54 53 52 51 50 49
48
TBC 47
2.5V
EFBAL
2.5V
FSC
FOSTA 46
0V
DGND
TOSTA 45
REF 2.5V
SLI
2FREQ CE 44
LASER
CL C34
0.033
FSTA
R36
8/12CM
47K
SLC
SLOF 3 43
2.5V
R33
5.6K
2.4V
RFS–
42
REF
C30
CV–
+
1P
CV+ RFSM
RF 41
1.6V
JP– HF
+
TP1
CV+ 4.9V
JP+
40
JPCLO
CV– 0V
39
SLOF
4.9V
38
OR
0V
HFL
37
TES
REF 4.8V
– 36
TOFF
0V
35
TGL 4.9V
34
–
JP+ 0V
33
27 28 29 30 31 32 6
7
R25
1.2K
10 R30
R26
27K
220K GND
C21
1/50
R10
82K
+B
5
R
1
C50
0.1
R38
33K
R37
47K
C32
R34
27P
1K
C31
0.0027
R35
470
4
C53
220P
5
D2
1SS133
C46
0.022
6 7 8 9
10
TO MAIN PWB (2/4)
6