Panasonic SA-PM65MD Service Manual page 118

SCHEMATIC DIAGRAM-1
Note:
The number which noted at the connectors on the schematic
diagram as "SCHEMATIC DIAGRAM 1" or
"SCHEMATIC DIAGRAM 2" indicates the schematic diagram
serial number located on the left corner in the schematic
diagram.
MD OPTICAL PICKUP
FOCUS TRACKING
COIL COIL
H G I J K L F
1 0.1
1 2 3 4 5 6 7
14 13 12 11 10 9 8
C B D E A
8 7 6 5
1 2 3 4
MD SWITCH CIRCUIT
S1
S2
S4
S5
S6
S8
S7
S3
FCS+
1 1
TRK+
2 2
TRK
3 3
FCS
4 4
GND
F PD
5 5
PD A
6 6
PD C
7 7
GND
8 8
A
A
9 9
B
B
10 10
APC
C
11 11
F2
D
12 12
F1
E
13 13
GND
14 14
Vcc
F 15 15
VREF
G
16 16
PD GND
H
17 17
RF2
I
18 18
RF1
J
19 19
GND
20 20
D
21 21
K
C
L
22 22
GND
23 23
LD
24 24
LD GND
25 25
0.022
HFMV
26 26
6
5
L700
4
(MAGNETIC HEAD)
3
2
1
M3
M
(LOADING MOTOR)
M2 M
(TRAVERSE MOTOR)
M1
M
(SPINDLE MOTOR)
(PROTECT) CN6
10 10
(REFLECT)
9 9
8 8
(DISC IN)
7 7
(LOAD PLAY/REC)
6 6
(LOAD PLAY)
5 5
4 4
(TV SW)
3 3
(LOAD TRG)
2 2
(LOAD OPEN)
1 1
MD SERVO P.C.B. SIDE-A
MD SERVO CIRCUIT
LASER
POWER ADJ.
R3 VR1
4.7K
10K(B)
CN1
R1
4.7K
C1 220P
TP35
TP37
TP44
C4
10
R6
4.7K
1.9V
C5
(1.9V)
2.6V
0.22
2.5V
0V
Q1
(1.8V)
2SB1295 6 TB
1.8V
LASER POWER DRIVE
R22
2.4V
0
(2.4V) 0V 2.6V
Q3
C6
2SB1462STX
1
3.3V (1.8V)
POWER SUPPLY
TP110
R13
3.3
CN8
C81
56P
C120
56P
Q11
2SK1764KYTR
C118
TP111
10 HEAD DRIVE
L11
10 H
C48
0.1
CP6
D9 MA728TX
MD SERVO P.C.B. SIDE-B
2.6V 2.6V
A
B
C
D
E
F
G
H
I
J
C8 C123
0.22
0.1
K
L
C7
0.22
M
7 6 5
N
GND
R8
270
O
P
8 9 10
R29
47K
1.8V
D5
(5V)
5V
D6
Q10
SC80209TE12R
2SJ278MYTR
5V
HEAD DRIVE
(5V)
D
0V
5V (0V)
0V
G
0V
S
Q
5 4 3 2
R
S
T
6 7 8 9
U
V
W
A
F
G
C
B
H
D
E
:+B Signal Line
:MD Signal Line
:MD Recording Signal Line
IC11
TC74HCT00AFL
NAND GATE
4 3 2 1
Vcc
11 12 13 14
(0V)
G
5V
D S
0V
5V
C133
10
C117
6.3V330
1
IC92
LB1830MS TLM
LOADING
MOTOR DRIVE
10
I
L
K
J