Technics SH-DV290EG Service Manual page 27

: POSITIVE VOLTAGE LINE
B
MAIN CIRCUIT
: NEGATIVE VOLTAGE LINE
L605
R649
10
B
L602
R640
10
C
L606
R650
10
A
L601
R639
10
D
F
E
G
A
B
C
J
D
E
F
G
C
D
H
F
E
37 38 39
:AUDIO SIGNAL LINE
SPEAKERS
JK601
HF(6 )
Lch
LF(8 )
JK602
HF(6 )
Rch
LF(8 )
CP601
GND
1
GND
2
C OUT
3
C OUT
4
5 GND
6 GND
7 GND
8 GND
9 SUR L OUT
10 SUR L OUT
11 SUR R OUT
12 SUR R OUT
CP602
ECO
1
SH SYNC
2
SA SYNC
3
D.GND
4
BU5V
5
6 RS13V
7 +B
8 NC
I
W722A
S1
1
2 S2
3 S3
4 S4
W721A
S1
1
S2
2
3 S3
4 S4
5 AC1
6 CT
7 AC2
8 S7
9 FL2
10 FL1
40 41
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 10 B
SUR R IN 11
SUR R IN 12 C
CN602
ECO
1
R712 2.2K
SH SYNC
2
SA SYNC
3
D.GND
4
Q726
BU5V
5
2SC3940AQSTA
RS13V
6
REGULATOR
+B 7
NC 8
D711
RL1N4003N02
POWER TRANSFORMER
E
(A) CIRCUIT
R793
A
W722B
S1 1
A
B
S2 2 B
S3 3 C
C
S4 4 D
FP791
D
K5G502AA0002
S1
1
S2
2
S3 3
S4 4
AC1 5
CT 6
FP792
AC2 7 K5G502AA0002
S7 8
FL2 9 R798
FL1 10
W721B
42 43 44
A
L604
R644
10
C
L603
R643
10
B
R795
3.9K
D746
RL1N4003N02
6V 10.7V
R777
6.7V
1K
Q791
2SD2144STA
R773 R774
RELAY DRIVE
18 18
0V
0.7V
T702
L701
F1 T2A
C753
0.01
AC9.4V
Z701
RL702
4 2
3 1
6V
POWER TRANSFORMER
F
(B) CIRCUIT
1
CN701
T701
CN702 CN711
AC22.6V
CN703
CN704
AC22.6V
CN705
CN706
AC11.7V
CN707
AC11.7V
CN708
CN712
AC
29.2V
AC4.7V
2.2
CN709
CN710 CN713
SA-DV290(E,EB,EG) MAIN, AC IN, POWER TRANSFORMER(A)&(B) CIRCUIT DIAGRAM
45 46 47
JK603
CENTER(8 )
H
SPEAKERS
R ch
SURROUND(8 )
L ch
G
F
E
JK701
AC IN
230-240V 50Hz [EB]
230V 50Hz [E,EG]
W2/W3
D
W1
C
W1
B
For
[E,EG]
areas.
W3
W2 A
For [EB] area.
48