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13.3. 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
24
25
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
MUTE2
MUTE1
SPDRV
FODRV
TRDRV
TRSDRV
MUTE3
VO5-
VO5+
VO4-
VO4+
VO1-
VO1+
VO2-
VO2+
83
79
76
75
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 PICK UP 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 PICK UP UNIT
PHOTO DETECTOR
B3B4
B2B1
A3
A2
A4
A1
LASER DIODE(DVD)
AMP
HEAD
Q8551, Q8552
LD DRIVE
134
(DV2)
IC8001
133
132
131
138
137
136
135
VIN10
VIN9
130
129
124
123
126
125
110
111
140
148
147
DVD-K29GCS
SERVO BLOCK DIAGRAM
S2602
OPEN SW
DVD-K29GCS
37