Panasonic SJ-MD150, Servise Manual

Page: 75 / 92

IC2
AN8814SB-E1
FOCUS/TRACKING COIL,
SPINDLE/ TRAVERSE
MOTOR DRIVE
14 13 12 11 10 9 8
15 16 17 18 19 20 21
6 5 4 3 2 1
23 24 25 26 27 28
REG
B
REG
M
NC
OPO
OP
-
Vcc
1/2PVcc2
PVcc2
PGND2
VO4+
VO4
-
VO3+
VO3
-
IN4 IN3
IN2
PC2 PC1 IN1 VREF PVcc1 PGND1 1/2PVcc1 VO1
-
VO1+ VO2
-
VO2+
7
22
OP+
C
B
D
A
R
T
U
V
S
W
X
G
C51
1
C52
1
C40
0.1
R85
22K
D E C F A
R36 27K R35 18K
Q5
2SB1295-6-TB
POWER SUPPLY
IC72
M51V4400D7FS
4M DRAM
H I J B P R N O
G F E D C Q M L
R38 22K R37 33K
C50
0.1
47K
10K
R86
1K
A K
B
C41
6.3V330
TP103
TP100
TP101
Q6
DTC114YETL
POWER SUPPLY
CONTROL
R131
100 R1
1
100
R1
17
100
R1
16
100
C72
0.1
C71
0.1
C85
4V10
26 25 24 23 22 18 17 16 15 14
1 2 3 4 5 9 10 11 12 13
DO1 DO2
WE
RAS
A9 A0 A1 A2 A3
Vcc
Vss DO4 DO3 CAS OE A8 A7 A6 A5 A4
L3
100
H
SCHEMATIC DIAGRAM-4
5V
5V
3.3V
2.6V
2.5V 2.5V 2.5V 2.5V
0V 5V
2.5V 1.3V 1.3V 3.3V 1.3V 3.3V 1.3V 1.3V
(0
V)
0V
(0
V)
0V
2.5V 2.5V 2.5V 2.5V 0V 0V 5V 5V 2.5V 4.3V 4.3V 0V
5V 5V
4.2V
3.3V
0V
0V
3.3V
(1
.5
V)
1.4V 1.4V 1.4V 1.4V 1.4V
0V
2.4V
2V 2V 0V
(1
.5
V)
1.7V 1.7V 1.7V 2.6V 2.6V 2.6V 0.7V 2V 1.4V
0.8V 0.4V
(2
.4
V)
2.8V
(1
.4
V)
2.4V
(1
.4
V)
2.2V
(1
.4
V)
1.6V
(1
.4V
)
2.5V
(1
.7V
)
1.5V
(1
.5V
)
1.5V
(2
.6V
)
2.9V
2.6V
(2
V)
(2
.9
V)
(1
.6
V)
(1
.6
V)
3.2V 0.1V 0.7V
:POSITIVE VOLTAGE LINE