Technics SH-DV290EG Service Manual page 35

POWER TRANSFORMER
E
(A) CIRCUIT
W722B
S1
1
S2
2
S3
3
S4
4
S1 1
S2 2
S3 3
S4 4
AC1 5
CT 6
AC2 7
S7 8
FL2 9
FL1 10
W721B
42 43
D
AC IN CIRCUIT
CN601
GND
1
GND
2
C OUT
3
C OUT A
4
GND
5
GND
6
GND
7
GND
8
SUR L IN
9
SUR L IN B
10
SUR R IN
11
SUR R IN C
12
CN602
ECO
1
R712 2.2K
SH SYNC
2
SA SYNC
3
D.GND
4
Q726
BU5V
5
2SC3940AQSTA
RS13V
6
REGULATOR
+B
7
6V 10.7V
NC
8
6.7V
D711
R773
RL1N4003N02
18
6V
R793
1
CN701
CN702
A
A CN703
B
B
CN704
C
C
D
CN705
FP791
D
K5G502AA0002
CN706
CN707
CN708
FP792
K5G502AA0002
R798
2.2
CN709
CN710
44
A
L604
R644
10
C
L603
R643
10
B
R795
3.9K
D746
RL1N4003N02
R777
1K
Q791
2SD2144STA
R774
RELAY DRIVE
18
0V
0.7V
T702
C753
0.01
AC9.4V
RL702
4 2
3 1
T701
AC22.6V
AC22.6V
AC11.7V
AC11.7V
AC
29.2V
AC4.7V
SA-DV290(E,EB,EG) MAIN, AC IN, POWER TRANSFORMER(A)&(B) CIRCUIT DIAGRAM
45 46
JK603
CENTER(8 )
SPEAKERS
R ch
SURROUND(8 )
L ch
JK701
L701
F1 T2A
AC IN
230-240V 50Hz
230V 50Hz
Z701
W2/W3
W1
POWER TRANSFORMER
F
(B) CIRCUIT
CN711 W1
For
[E,EG]
areas.
CN712 W3
CN713 W2
For [EB] area.
47
H
G
F
E
[EB]
[E,EG]
D
C
B
A
48