Text preview for : b_servo.pdf part of panasonic b servo panasonic Video NV-VP21EC b_servo.pdf
Back to : b_servo.pdf | Home
OPTICAL PICK UP UNIT AV DECODER PCB SYSCON / SERVO
RF SIGNAL MOTOR DRIVE SIGNAL TRACKING ERROR SIGNAL FOCUS ERROR SIGNAL
IC2501
IC8001 (MOTOR DRIVE)
VO4+ P8201
15
1
-
+ M2502
P8001 VIN5
PHOTO DETECTOR 113/134 TRAVERS MOTOR
4
LEVEL P8201
DRV0 TRIN VO4-
75 26 SHIFT 16
P8001 VIN6 2
112/133 -
B1 B2 5
- +
A1 A2 +
BIAS1
A4 A3 HEAD P8001 VIN7 OPIN+
132 4
B4 B3 AMP 16
DAC1 VIN1
146 2
P8001 VIN8
131
17 VO3+ P8201
17
3
P8001 -
VIN1
117/138 + M2501
21 SPINDLE MOTOR
DAC0 VIN2
139 3 LEVEL
P8001 VIN2 VO3- P8201
116/137 SHIFT 18
20 3
-
+
P8001 VIN3
115/136
18 OPIN-
5
DRV1 VIN3
76 23
P8001 VIN4
114/135
19
IC2511-11,12,13,14
AD0 OPOUT + 1.2Vp-p(0.5usec./div.)
140 6 -
Q8001
LASER DIODE
DVD P8001
Q8003
LPC01
OPTICAL PICK UP UNIT
LD DRIVE 124 -
9 IC6101 P8003 LDIN
24 +
P8001 LPC1 13
123
12 Tray DRV
Q8002 BIAS2 ACTUATOR
LASER DIODE
Q8004
CD P8001 LPC02 FOCUS
LD DRIVE 126 - COIL
11 VO1+ P8001 ACT T+
+ 14
P8001 LPC2 26
125
3
LEVEL P8001
VO1- ACT T-
SHIFT 13
23
- - TRACKING
+ + COIL
VO2+ P8001 ACT F+
12
RFINN 25
110
VO2- P8001 ACT F-
- 11
RFINP 24
111 +
LEVEL
SHIFT
- -
+ +
NV-VP21EC/EF/EP
NV-VP26EC
NV-VP31EC/EB/EBL/EP
DVD SERVO SECTION
BLOCK DIAGRAM