Technics SA-DV290EE, Service Manual

Page: 41 / 55

13 14 15 16 17 18 19 20 21 22 23 24
DET
Rch
CE
Lch
DI
DO
CL
+B(2)
SD
+B(1)
T.GND 1
2
3
4
5
6
7
8
9
10
11
Z101
RAN0005EM-2 [EE]
ENG06502Q [GN]
(TUNER PACK)
SA-DV290(EE,GN) OPERATION, MAIN CIRCUIT DIAGRAM
W901B
W902B
1 2 3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
B A
COM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Q902
UN411FTA
MUTING CONT.
A B C
R962
22K
VR901
EVQVBXFK124B
(VOLUME)
R945
100
R961
22K
R943
100
C917
0.01
D907
MA165TA
M
R946
1K
C909
1000P
C918
6.3V100
D E A
R941
1K
A
B
C
D
E
F
G
H
I
J
K
L
N
O
Q
S
T
A
OPERATION CIRCUIT
R942
2.2K
R974
1K
C931
16V10
R965
3.9K
R966
3.9K
D961
MA4075MT
A
R975
22K
D906
MA165TA
U
N
1
2
3
Z901
B3RAD0000028
(REMOTE SENSOR)
W902A
W901A
CP101
C
F
G
B
A
E
D
Q707
2SB1417PQTA
REGULATOR
Q723
2SC3940AQSTA
REGULATOR
R763
4.7K
R230 1K
R229 1K
D721
MA4300MT
A
R708
4.7K
C707
0.047
C706
35V10
C737
50V100
To
SOUND
PROCESSOR
(SH-DV290)
C735 0.047
B
A
R563
2.7K
R564
2.7K
C660
16V10
C659
16V10
R615
4.7K R614
4.7K
R631
3.9K
R632
3.9K
C202
0.1
R203 100K R204 100K
C201
0.1
C602
16V10
C708 0.047
R211
270
D201
MA4056MT
A
R687
1.5K
R688
1.5K
Q606
R617
4.7K
2
1
3
4
5
6
7
8
9
10
11
C B
A X0 X1 V
DD
G Vss INH Z0 Z1 Y1 Y0
16
15 14 13
12 11 10 9
1 2 3 4 5 6 7 8
IC201
BU4053BCFE2
SIGNAL SELECTOR
C655
16V10
C656
16V10
R606
4.7K
R605
4.7K
2
15
3
4
5
6
7
8
9
10
11
12
13
14
1
2
15
3
4
5
6
7
8
9
10
11
12
13
14
1
20
2
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
K
L
M
I
J
E
F
C
D
E
F
G
E
F
G
A
B
C
D
A
B
G
H
C601
16V10
R598
2.2K
R597
2.2K
R205 100K
H
G
R202 100K
B
C
D
E
F
C509
0.01
C510
0.01
R693
1K
R692
1K
C664
16V10
C725
16V47
A
R696
47K
Q606,609,610
2SD2144STA
MUTING
Q609
Q610
Q612
UN411FTA
MUTING CONT.
B
A
R694
22K
R511
47
R509
47
R512 47 R510 47
W501
D720
B0JANG000008
D718
B0JANG000008
H
D
C
R695
470
D61
1
MA4051MT
A
C740
16V10
C733 0.047
D737
MA4082L
T
A
R764
330
MAIN CIRCUIT
B
C731
1000P
C741
0.1
TUNER Lch/C
TUNER Rch
A.GND
Lch IN
Rch IN
+B(10V)
SUR L
SUR R
S.W
MIC
-B(-10V)
V.GND
D.GND
CS/ REQ
CLK
DATA
CT GND
SH FL1
SH FL2
SYNC
A
B
B
R684
1K
C715
25V6800
C714
1000P
D705
RL1N4003N02
A
R
P
For [EE] area.
IC151
C1BB00000527
RDS SIGNAL
DEMODULATOR
R158
1K
R154 100K R153 100K
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
VREF
HPX IN
V
DD
A
VssA
FL OUT
C IN
TEST
X OUT
IDR
RDCL
RDDA
RST
MODE
V
DD
D
VssD
X IN
C155
1000P
C153
1000P
C160
1000P
C159
6.3V47
R152
1K
R151
1K
C154 560P
C158
6.3V47
C151
16V10
B C
L151
100 H
L152
100
H
C156
47P
C157
47P
R157
1K
C152
330P
X151
(4.332MHz)
L153
1
H
R155
120
D151
MA4051MT
A
For [EE] area.
N
: POSITIVE VOLTAGE LINE
: NEGATIVE VOLTAGE LINE
-30.1V
5.1V
:AUDIO SIGNAL LINE
6V
7.6V
3.3V
0V
3.3V
14.7V
10.4V
-37.3V -30.1V
-30.7V
14.7V 7.2V
7.8V
-10V
-10V
0V
0V
-10.2V
5.1V
4.9V
0V
-10V
5.7V 0V 0V 0V 0V 0V
6V
7.2V
7.6V
-10.4V
0V 0V -10.4V
:TUNER SIGNAL LINE
:MIC SIGNAL LINE
2.6V
2.6V
0V
5.1V
2.5V 2.7V
2.5V
2.5V
5.1V
2.5V
2.5V