14.3. SERVO BLOCK DIAGRAM
BIAS1
BIAS2
MUTE
CH1
MUTE
CH3
MUTE
CH2,4,5
-
+
SHIFT
LEVEL
-
+
+
-
+
-
SHIFT
LEVEL
-
+
-
+
+
-
SHIFT
LEVEL
-
+
+
-
+
-
+
-
SHIFT
LEVEL
-
+
+
-
+
-
OPIN-
26
OPIN+
25
SPINDLE MOTOR
TRAVERS MOTOR
IC6001-16,17PIN
FROM
VIN3
7
S2601
CLOSE SW
(OPERATION CPU)
IC6001
TRAY OPEN
19
20
TRAY CLOSE
TRAY MUTE
18
OPOUT
27
AD1
4Vp-p(0.5msec./div.)
IC8251-15,16,17,18
RF SIGNAL
MOTOR DRIVE SIGNAL
TRACKING ERROR SIGNAL
FOCUS ERROR SIGNAL
VIN1
VIN5
VIN4
VIN2
TRVFT MUTE
SP MUTE
SPDRV
FODRV
TRDRV
TRSDRV
DRV0
PWM1
PWM0
DRV1
AD1
DRV4
DRV3
MUTE3
VO5-
VO5+
VO4-
VO4+
VO1-
VO1+
VO2-
VO2+
87
90
91
22
6
4
3
1
16
15
18
17
13
14
11
12
SHIFT
LEVEL
-
+
+
-
LOADING MOTOR
M2601
VO3-
VO3+
9
10
5
23
(MOTOR DRIVE)
IC8251
ACT F-
ACT F+
ACT T-
ACT T+
OPTICAL PICKUP UNIT
ACTUATOR
COIL
TRACKING
COIL
FOCUS
RFINN
RFINP
LASER DIODE(CD)
Q8561, Q8562
LD DRIVE
VIN4
LPC01
LPC1
LPC02
LPC2
VIN3
VIN2
VIN1
VIN8
VIN7
VIN6
VIN5
OPTICAL PICKUP UNIT
PHOTO DETECTOR
B3
B4
B2
B1
A3
A2
A4
A1
LASER DIODE(DVD)
AMP
HEAD
Q8551, Q8552
LD DRIVE
(DV3.2)
IC8001
VIN10
VIN9
DVD-S42PC/S422PC
SERVO BLOCK DIAGRAM
S2602
OPEN SW
140
145
114
130
129
131
132
133
134
138
137
135
136
124
123
126
125
113
144
88
DVD-S42PC / DVD-S422PC
41
Summary of Contents for DVD-S42PC
Page 21: ...3 Remove the solders 4 Remove the traverse motor 21 DVD S42PC DVD S422PC ...
Page 26: ...26 DVD S42PC DVD S422PC ...
Page 27: ...27 DVD S42PC DVD S422PC ...
Page 38: ...DVD S42PC DVD S422PC 38 ...
Page 44: ...DVD S42PC DVD S422PC 44 ...
Page 58: ...DVD S42PC DVD S422PC 58 ...
Page 59: ...18 EXPLODED VIEWS 18 1 CASING PARTS MECHANISM SECTION EXPLODED VIEW 59 DVD S42PC DVD S422PC ...
Page 60: ...18 2 MECHANISM SECTION EXPLODED VIEW 60 DVD S42PC DVD S422PC ...
Page 61: ...18 3 PACKING ACCESSORIES SECTION EXPLODED VIEW 61 DVD S42PC DVD S422PC ...