Main Section - Sharp MD-X60H Service Manual

OPTICAL PICKUP
SW702A
OPTICAL
PICKUP
IC1,IC2
+5V
+5V
Q81
VOLTAGE
REGULATOR
+7.3V (B2)

MAIN SECTION

(TO -CON)
M702
M
SLED
MOTOR
M701
M
SPINDLE
MOTOR
6
7
30 25 24 13 12
31
IC5
1
5
M56748FP
14
FOCUS/TRACKING/
22
8
SPIN/SLED
32
9
DRIVER
10
11
36 35 34 29 28 27 26 20
+B1
CAM SWITCH
SWB101
SWB102
SWB103
SWB104
TRAY SWITCH
SWB105
SWB106
SWB107
SWB108
Figure 39 BLOCK DIAGRAM (2/4)
4 3
2
TO
15
FD
16
SPO
27
SP
23
SLD
29
LA9241M
30 SL–
SL+
31 SERVO CONTROL
DRF
54
50 CLK
CL
51
DAT
52
CE
53
43 40
44 41
29 28 24 23 20 19
63
IC2
LC78625E
68
SERVO SIGNAL
72
56
CD–D–OUT
3 7
IC92
1 6
TA7291S
MAIN CAM MOTOR
9 5
DRIVER
IC91
1 6
TA7291S
TRAY MOTOR
9 5
DRIVER
3 7
– 39 –
MD-X60H
1
LASER DRIVER
62 Q1
IC1
64
~
32
~
15 13 11 10
XIN 77
XL1
16.934MHz
XOUT
78
6
VVDD
VDD
27
LVDD 47 +5V
RVDD
54
XVDD
79
2 4 8 39 40 50 51 75 76
MOB1
MAIN CAM
MOTOR
M
+B1
MOB2
M
TRY
MOTOR
+5V