Power Transformer - Technics SA-EH770 Service Manual

SCHEMATIC DIAGRAM-8
C OUT
C OUT
C
To MAIN CIRCUIT(CP601)
on SCHEMATIC DIAGRAM-7
SUR L IN
SUR L IN
SUR R IN
SUR R IN
SH SYNC
SA SYNC
C
To MAIN CIRCUIT(CP602) D.GND
on SCHEMATIC DIAGRAM-7 BU5V
RS13V

POWER TRANSFORMER

F
(A) CIRCUIT
W722B
C
To MAIN
S1 1
CIRCUIT
S2 2
(W722A) on
S3 3
SCHEMATIC
S4 4
DIAGRAM-6
S1
1
S2
2
S3
3
C
To MAIN
S4
4
CIRCUIT
AC1
5
(W721A) on
CT
6
SCHEMATIC
AC2
7
DIAGRAM-6
S7
8
FL2
9
FL1
10
W721B
E
AC IN CIRCUIT For [GN] area.
CN601
GND 1
GND 2
3
4 A
GND 5
GND 6
GND 7
GND 8
9
10 B
11
12 C
CN602
ECO 1
R712 2.2K
2
3
4
5
Q726
6
2SC3940AQSTA
+B 7
REGULATOR
NC 8
6V 10.7V
6.7V
D711
R773
RL1N4003N02
18
6V
For [GN] area.
R793
1
CN701
CN702
A
A CN703
B
B
CN704
C
C
D
R791
CN705
RSFMB40KT-L
D
CN706
CN707
CN708
R792
RSFMB40KT-L
CN709
CN710
: POSITIVE VOLTAGE LINE
: NEGATIVE VOLTAGE LINE
A
L604
R644
10
C
L603
R643
10
B
D746
RL1N4003N02
R777
1K
Q791
R774
2SD2144STA
18
RELAY DRIVE
0V
0.7V
T702
C753
0.01
AC9.4V
RL702
4 2
3 1
POWER TRANSFORMER
G
(B) CIRCUIT
T701
AC22.6V
AC22.6V
AC11.7V
AC11.7V
AC
29.2V
AC4.7V
JK603
CENTER(8 )
SPEAKERS
R ch
SURROUND(8 )
L ch
JK701
L701
F1 T2A
AC IN
(230-240V 50Hz)
Z701
W2/W3
W1
For [GN] area.
CN711 W1
CN712 W3
CN713 W2