Sharp XL-MP45H, Руководство по обслуживанию

Страница: 12 / 40

XL-MP45H
– 12 –
Figure 12 BLOCK DIAGRAM (3/5)
+6.2V
CONSTANT
VOLTAGE
Q803
Q804
LASER
DRIVER
Q801
Q802
CD PICKUP UNIT
IC801
LC78646E
SERVO/SIGNAL CONTROL
VDD
LDD
LDS
TRACKING COIL
FOCUS COIL
PICKUP IN
SLED
MOTOR
SPINDLE
MOTOR
M
M
XVDD
RVDD
LVDD
RFVDD
X801
16.9344 MHz
VCC VCC
IC802
LA6548D
FOCUS/TRACKING/
SPIN/SLED
DRIVER
XIN
XOUT
*RES
*WRQ
DO
DI
CL
CE
TIN2 F
TIN1 E
FIN2 B
FIN1 A
TDO FDO SPDO SLDO
CONT4
VDD5
LCHO
80
79
75
20
5
1
MUTE
2 30
REF-IN
REG_TR
RESET
REG_OUT
29
9 7 22 24
41
47
46
38
VVDD
77
10
VREF
11
9
8
7
21
5
11
10
14
15
16
6
20
26
25
61
62
63
69 51 43 44 40 37 19 6
72 25 23 22 21
27 4 12 19
42
RCHO 45
68
64
65
66
DRF 67
48 49
ADAVDD 18
~ ~
+
– –
+
+5V
E
VCC
VC
D
A
B
C
F
LD
MD
1 2 3
CD L
TO MAI
A-GND
CD R D
-GND
54 55 56 57 58 59 60
DATA
DATACK
IGMOUT
ASRACK
ASDFIN LRSY ASDACK
50
FSX/16MIN
52
C2F
0+SLD
0-SLD
0+SPD
0-SPD