Technics RS-DV290EG Service Manual page 138

B
W501
TUNER Lch/C
1
TUNER Rch
2
A.GND
3
Lch IN
4
Rch IN
5
+B(10V)
6
SUR L
7
SUR R
8
S.W
9
To
MIC
10
SOUND
-B(-10V)
PROCESSOR 11
(SH-DV290)
V.GND
12
D.GND
13
CS/ REQ 14
CLK 15
DATA 16
CT GND 17
SH FL1 18
SH FL2 19
SYNC 20
02B W902A
15
15
14
14
13
13
12
12
11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3 3
2 2
1 1
W901A
01B
15 15
14 14
13 13
12 12
11 11
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
Z101
RAN0005EM-2
(TUNER PACK)
CP101
T.GND 1 1
2 2
+B(1)
3 3
SD
4 4
+B(2)
5 5
DET
6 6
Rch
7 7
CE
8 8
Lch
9 9
DI
10 10
DO
11 11
CL
8 19
MAIN CIRCUIT
H
G
A
B
R511 R509
47 47
R512 47 R510 47
A
10.4V
B
C
D
B
E
F
G
C
D
E
F
G
E
F
J
K
L
M
I
6V
A
B
C
G
R230
1K
B
F
R229 1K
A
E
D
C
20
7.6V
-10.4V
R597 C659
2.2K 16V10
C660
R598
16V10
2.2K
1 2
Y1 Y0
V
DD
16 15
5.7V 0V
R211
270
H
G
F
C
B
D
A
E
Q605,606
2SD2144STA
MUTING
Q707
2SB1417PQTA
REGULATOR
-30.1V -37.3V
-30.7V
Q723
2SC3940AQSTA
REGULATOR
7.2V 14.7V
7.8V
R764 R763
330 4.7K
21 22
R631
3.9K
A
B
R632
3.9K
C202
0.1
0V 0V -10.4V
3 4 5 6 7 8
Z1 Z0 INH Vss G
IC201
BU4053BCFE2
SIGNAL SELECTOR
B C
A
X1 X0
14 13 12 11 10 9
0V 0V 0V 0V
R603
3.3K
C656
16V10
C655
16V10
C602
16V10
R695
470
0V
0.7V
Q605
0V
-10V 4.9V
Q612
Q606
UN411FTA
MUTING CONT.
Q609,610
2SD2144STA
A MUTING
Q609
R693
0V
1K
B -10V
Q610
R692 R694
0V
1K 22K
C
-10V
D705
RL1N4003N02
H
A
D718
RL1N4003N02
D717
RL1N4003N02
C731
1000P
D
D720
RL1N4003N02
C
D719
RL1N4003N02
14.7V
SA-DV290(E,EB,EG) OPERATION, MAIN CIRCUIT DIAGRAM
23
R688
1.5K
R687
1.5K
5.1V
-10.2V
24