Technics SA-DV250 User Manual

SCHEMATIC DIAGRAM-4
W902A
W901A
CP101
C
F
G
B
A
E
D
DET
Rch IN
CE
Lch IN
DI
DO
CL
+B(2)
SD
+B(1)
T.GND
Q707
2SB1417PQTA
REGULATOR
Q723
2SC3940AQSTA
REGULATOR
R763
4.7K
R230 1K
R229 1K
D721
MA4300MTA
R708
4.7K
C707
0.047
C706
35V10
C737
100
To
SOUND
PROCESSOR
(SH-DV250)
To TUNER UINT
on SCHEMATIC
DIAGRAM-10
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
MA4056MTA
R687
1.5K
R688
1.5K
Q605,606
2SD2144STA
MUTING
Q605
Q606
R683
1K
R617
4.7K
2
1
3
4
5
6
7
8
9
10
11
C
B
A
X0X1VDD
G
Vss
INHZ0Z1Y1 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
C
R696
47K
Q609,610
2SD2144STA
MUTING
Q609
Q610
Q612
UN411FTA
MUTING CONT.
B
C
R694
22K
R511
47
R509
47
R512 47 R510 47
W501
D719
RL1N4003N02
D720
RL1N4003N02
D717
RL1N4003N02
D718
RL1N4003N02
H
D
C
R695
470
D611
MA4051MTA
C740
16V10
C733
0.047
D737
MA4082LTA
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
R603
3.3K
A
B
B
R684
1K
A
C715
6800
C714
1000P
D705
RL1N4003N02
A
: POSITIVE VOLTAGE LINE
: NEGATIVE VOLTAGE LINE
: FM SIGNAL LINE
: AM SIGNAL LINE
14.7V
10.4V
- 37.3V - 30.1V
- 30.7V
14.7V7.2V
7.8V
- 10V
- 10V
0V
0V
- 10.2V
5.1V
4.9V
0V
- 10V
0V
0.7V
:AUDIO SIGNAL LINE
5.7V 0V 0V 0V 0V 0V
6V
7.2V
7.6V
- 10.4V
0V 0V - 10.4V
:MIC SIGNAL LINE

Technics SA-DV250 Specifications

General

Brand	Technics
Model	SA-DV250
Category	Amplifier
Language	English