Panasonic SJ-MR220 Schematic Diagrams page 2

:POSITIVE VOLTAGE LINE
D911
MA133TX
D
R911
47K
C
B
IC902
C0JBAZ001767
INTERFACE
(1.7V)
0V
A 8 3Y GND 7
(2.8V)
1.7V
3A 2Y
9 6
(3.5V)
1.2V
3B 2B
10 5
0V
D 4Y 2A
11 4
(2.8V)
1.7V
4A 1Y
12 3
(3.5V)
1.2V
13 4B 1B 2
(3.5V)
1.2V
Vcc 1A
14 1
C
E
1.5V
MD OPTICAL PICKUP
FOCUS TRACKING
COIL COIL
300
6 5 4
1 2 3
1 H
A
B
C
D
E
14 13 12 11 10 9 8
1 2 3 4 5 6 7
A B C D E F
:RECORDING SIGNAL "DIGITAL" LINE
Q911
DTC144EETL
SWITCHING
(3.5V) 1.2V
TH901
10K
B
0V
1.9V
1.2V (3.5V)
24
1.7V (2.8V)
0V
1.2V (3.5V)
1
2.3V
1.7V (2.8V)
C
A
FCS-
1 1
TRK+
2 2
TRK-
3 3
FCS+
4 4
PD-C
5 5
PD-A
6 6
LD
A
7 7
H
LD-GND
8 8
A
9 9
B
F1
10 10
C
F2
11 11
D
B
12 12
E
HFMV
13 13
PD-GND
14 14
VREF
A
15 15
RF2
B
16 16
RF1
17 17
C
GND
18 18
D
19 19
D
C
20 20
E
Vcc
21 21
F
:PLAYBACK SIGNAL LINE
0V
R905
1K
C906
4700P
1.5V 0V 1V 0V
23 22 21 20 19 18 17
IC901
C0GBE0000003
MOTOR DRIVE
2 3 4 5 6 7 8
2.3V 0V 1.5V 0V 0V
(2.2V) C901
4V22
TP401 TP402 TP403
CN1
R6 15
C5 1
C20 0.22
C21 0.22
TP407 TP406
R3
(0V) (0V)
1.5
1.7V 2.2V
Q1
2SB1295-6-TB
1.5V
C2
LASER POWER DRIVE (1.4V)
1
SJ-MR220(EB,EG,GCS,GH) MAIN SCHEMATIC DIAGRAM
E
Q901
DTC144EETL
SWITCHING
(DIRECTION CHANGE)
0V
1V
F
C907
4700P
C905 C904
4700P 0.22
0V 0V 2.2V 2.3V
16 15 14 13
9 10 11 12
0V 0V 0V 0V
R903
1.8K
C903
0.047
G
TP404
D
A
B
C
R1
4.7K
A
B
C
D
E
F
G
H
I
J
K
2.2V
R5
270
L