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OPTICAL PICK UP UNIT
PHOTO DETECTOR
B1
B2
A1
A2
HEAD
A4
A3
AMP
B4
B3
LASER DIODE
Q8551,8552
LD DRIVE
LASER DIODE
Q8561,8562
LD DRIVE
IC8606
C0EBA0000031
RESET
IC8601
OUT
C0EBE0000384
1
VOLTAGE DETECTING
Q8606,
8607
2
NRESET
BUFFER
IC8001
MN2DS0003APH
DV2.1 LSI
138
VIN1
137
VIN2
136
VIN3
135
VIN4
131
VIN8
132
VIN7
VHALF
133
VIN6
134
VIN5
PWM1
129
VIN10
130
VIN9
PWM0
124
LPC01
DRV1
123
LPC1
DRV0
126
LPC02
125
LPC2
AD1
110
RFINN
111
RFINP
DRV4
DRV8
DRV3
DRV6
FG
Q8550,
8560
BUFFER
73
NRST
P8
P9
IC8251
C0GBG0000048
TRACKING COIL/FOCUS COIL/TRAVERSE/SPINDLE MOTOR DRIVE
-
128
1
BIAS1
+
147
TRV DRV
2
VIN1
148
F0 DRV
3
VIN2
76
SP DRV
23
VIN3
75
TRS DRV
24
LDIN
-
+
BIAS2
140
6
OPOUT
79
MUTE3
27
MUTE3
CH3
MUTE
83
MUTE12,4
9
MUTE12
CH1,2
MUTE
20
MUTE4
CH4
MUTE
QR8571
78
BUFFER
81
SW
72
IC8611
C3EBGZ000001
EE PROM
60
SDA
5
SDA
59
SCL
6
SCL
(Not supplied)
VOL4+
15
-
TRAVERSE
+
MOTOR
VOL4-
16
LEVEL
SHIFT
-
+
OPIN+
4
VOL3+
17
-
SPINDLE
+
MOTOR
VOL3-
18
LEVEL
SHIFT
-
+
OPIN-
5
OPTICAL PICK UP UNIT
VOL1+
14
-
+
ACT T+
VOL1-
13
ACT T-
LEVEL
SHIFT
-
-
+
+
ACT F+
ACT F-
VOL2+
12
-
+
VOL2-
11
LEVEL
SHIFT
-
-
+
+
TRAVERSE SW
SA-HT440P/PC BLOCK DIAGRAM
ACTUATOR
TRACKING
COIL
FOCUS
COIL
HFM
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