Technics SL-EH560 Service Manual page 71

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.
OPTICAL PICKUP
8
3
LD
11
12
2
10
5
4
9
6
1 2 3 4
8 7 6 5
TRACKING
COIL
FOCUS
COIL
TP36
A
M702
M
SPINDLE
MOTOR
B
TP35
TP38
C
M701
M
TRAVERSE
MOTOR
D
TP37
A
CD SERVO CIRCUIT
Q701
2SB709STX
LASER POWER
DRIVE
(2.5V)
3.4V
Vcc CN701
1 1
0.3V
PDF
A (1.8V)
2 2
PDE
B D
3 3
E
LD
4 4
C
A
GND
5 5
B
GND
6 6
NB
7 7
C
GND
8 8
D
NA
E
9 9
VREF
10 10
LPD
11 11
GND C712
12 12
0.1
T+
13 13
C711
0.1
T-
14 14
F+
15 15
C751 C750
0.1 0.1
F-
16 16
D C B A
TP42
VREF
B A D C
(0.4V) (0.2V) (0.1V) (0.4V) (0.2V)
0V 0V 0V 0V 0V
14 15 16 17 18 19
13 12 11 10 9 8
0V 0V 0V 0V
(0.1V) (0.7V) (0.6V)
A B D C
:POSITIVE VOLTAGE LINE
PLAY
0.8V
P-P
0.5 s. 0.2V/DIV.
3V
IC701
AN8839NSBE2
SERVO AMP
(0.2V) (2.5V)
1.7V 1.7V 3.4V 1.7V 1.7V 0V 3V
1 2 3 4 5 6 7
28 27 26 25 24 23 22
1.7V 1.7V 1.7V 1.7V 1.7V 1.7V 1.7V
C747
180P
R744 C710
120K 120P
2ms. 0.1V/DIV.
C749
2200P
C742
0.027
TP40 TP33
I H G F
IC703
AN8739SBE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVE
B
7.8V 7.8V 1.7V 1.7V
20 21 22 23
7 6 5 4
7.8V 1.7V 1.7V 3.3V
(0V)
:CD SIGNAL LINE
3.4V 5V
(RF)
TJ701
TP29 TP30
C716
820P
(1.5V) (2.3V) (3.3V)
1V 0.7V 2.1V 1.8V 0V 0V
8 9 10 11 12 13 14
21 20 19 18 17 16 15
1.7V 0V 3.3V
(0V)
PLAY
0.6V
P-P
2ms. 0.1V/DIV.
PLAY
0.2V
P-P
TP32
E D C
A
1.7V
24 25 26
B A
3 2 1
R749
1.7V 1.7V
4.7K
R725 C715
390 2700P
R728
3.9K
R731
6.8K
7.8V 7.7V
B
A
C
A
B
D
E
F
G