Technics SA-DV290EE Service Manual page 55

: NEGATIVE VOLTAGE LINE
A
OPERATION CIRCUIT
: POSITIVE VOLTAGE LINE
5.1V
VR901
EVQVBXFK124B
(VOLUME)
COM B A
1 2 3
R946
1K
D E A
For [EE] area.
IC151
C1BB00000527
RDS SIGNAL
DEMODULATOR
C151 C
16V10
2.5V
1 VREF IDR 16
2.5V 2.6V
2 HPX IN RDCL 15
2.6V
5.1V
3 V DD A RDDA 14
0V
VssA RST
4 13
2.5V
FL OUT MODE
5 12
2.5V
5.1V
6 C IN V D 11
DD
7 TEST VssD 10
2.7V 2.5V
8 X OUT X IN 9
X151
(4.332MHz)
100
C152
330P
13 14 15
:AUDIO SIGNAL LINE :MIC SIGNAL LINE
:TUNER SIGNAL LINE
R941
1K
Z901
B3RAD0000028
Q902
(REMOTE SENSOR)
UN411FTA
MUTING CONT. R974
3 1K
3.3V 3.3V
2
1 0V
M
R
P
7.6V
A
B
C
D
E
F
G
H
I
J
K
L
D906
MA165TA
B
D907
MA165TA
U
N
O
Q 6V
R966 R965
3.9K 3.9K
S
T
For [EE] area.
L151
H
R158
1K
16 17
B
MAIN CIRCUIT
W501
TUNER Lch/C 1
TUNER Rch 2
R511 R509
A.GND 3
47 47
Lch IN 4
R512 47 R510 47
Rch IN 5
+B(10V) 6 10.4V
SUR L
7
SUR R
8
To S.W
9
SOUND MIC
10
PROCESSOR
-B(-10V)
11
(SH-DV290)
V.GND 12
D.GND 13
CS/ REQ 14
CLK 15
DATA 16
CT GND 17
A B C
SH FL1 18
SH FL2 19
SYNC 20
W902B 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
W901B
15
15
14 14
13 13
12 12
11 11 6V
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1
1
Z101
RAN0005EM-2 [EE]
ENG06502Q [GN]
(TUNER PACK)
CP101
T.GND 1 1
+B(1) 2 2
SD 3 3
+B(2) 4 4
DET 5 5
R230 1K
Rch 6 6
CE 7 7
R229 1K
Lch 8 8
DI 9 9
DO 10 10
CL 11 11
18 19 20
7.6V
H
-10.4V
G
A
B
R597 C659 R631
2.2K 16V10 3.9K
C660
R632
A R598
16V10 3.9K
2.2K
B
C
D
0V
1 2 3 4
Y1 Y0 Z1
B
E
F
G
V X1
DD
14
16 15 13
5.7V 0V 0V 0V
R211
270
C
D
H
E
G
F
F
G
E
F
J
C
B
K
D
A
E
N
L
M
Q707
2SB1417PQTA
I
REGULATOR
-30.1V -37.3V
-30.7V
0V
Q606,609,610
2SD2144STA
B
MUTING
Q609
A
0V
B
Q610
0V
A
D705
RL1N4003N02
Q723
2SC3940AQSTA
REGULATOR
7.2V 14.7V
G
7.8V
D718
R764 R763
B0JANG000008
330 4.7K
B
F
D720
A B0JANG000008
E
D
C
SA-DV290(EE,GN) OPERATION, MAIN CIRCUIT DIAGRAM
21 22
A
B
C202
0.1
0V -10.4V
5 6 7 8
Z0 INH Vss G
IC201
BU4053BCFE2
SIGNAL SELECTOR
X0 A B C
12 11 10 9
0V 0V
C656 R688
16V10 1.5K
C655 R687
16V10 1.5K
C602
16V10
R695
470
5.1V
4.9V
Q612
-10.2V
UN411FTA
MUTING CONT.
Q606
R684
1K
-10V
R693
1K
-10V
R692 R694
1K 22K
-10V
H
A
D
C
14.7V
23 24