Technics SA-DV250 User Manual

SCHEMATIC DIAGRAM-6
CN781
F
C
A
B
D
E
Q551
2SA1995RSTA
SIGNAL LEVEL DET.
Q555
2SD2144STA
SIGNAL LEVEL DET.
Q702
2SB1548PQAU
REGULATOR
Q725
2SC5398RSTA
STABILIZER
Q705
2SA1995RSTA
STABILIZER
Q701
2SD2374PQAU
REGULATOR
R556
100K
R557
10K
C721
10V100
D725
MA4082LTA
R729
220
C723
0.047
C639
1000P
C640
1000P
C641
1000P
C642
1000P
C732
0.022
C647
1000P
D738
MA165TA
D730
MA4091HTA
R768
100
R724
3.9K
C718
16V100
D723
MA4150HTA
R723
5.6K
C719
0.047
R725
10
C724
0.047
C710
0.047
R546
18K
R551
18K
R552
47K
R555
22K
C550
0.01
D552
MA165TA
D555
MA4100MTA
R547
18K
E602
E601
R749
1K
D739
MA165TA
POWER SUPPLY CIRCUIT
C
1
1032 4 5 6 7 8 9
W701B
1
1032 4 5 6 7 8 9
R720
3.9K
C734
50V3.3
D758
MA165TA
C722
16V100
C720
0.047
C717
16V33
MAIN CIRCUIT
B
G
R765
220
N
R569
10K
D554
MA165TA
C371
6.3V100
Q556
2SC5398RSTA
SWITCHING
R568
100
D553
MA700TA
C556
16V10
C555
16V10
Q557
2SA1995RSTA
MOTOR DRIVE
Q553
2SD2144STA
MOTOR DRIVE
R570
2.2M
R560
100K
C559
0.01
D581
RL1N4003N02
R567
22
FAN MOTOR
JK551
R566
68K
Q554
2SA1995RSTA
SIGNAL LEVEL DET.
M
R719
3.3K
Q703,704
2SD2137PQTA
REGULATOR
R796
2.2
Q703
Q704
R769
27
R727
3.9K
C554
10V220
R561
100K
C552
0.01
R559
4.7K
R591
4.7K
C551
50V2.2
D551
MA165TA
1
2
D583
RL1N4003N02
N
R721
4.7
R722
2.2
AB
R753
0.47
R754
0.47
Q711,712
2SB1548PQAU
REGULATOR
Q711
R797
2.2
R767
27
R558
2.2K
D582
RL1N4003N02
Q712
: POSITIVE VOLTAGE LINE
: NEGATIVE VOLTAGE LINE
29.2V
:AUDIO SIGNAL LINE
29.2V14.7V
15.2V
- 30.1V
- 11V
- 10.4V
- 11V
- 0.6V
14.1V
13.6V
9.6V
10.2V
10.4V
- 10.4V
14.7V
7.6V
7V
0V
7.6V
0.3V
- 10.4V
- 10.4V
- 10.4V
7.6V
7.6V
6.8V
FAN ON:1.6V
0V
FAN ON:0V
0.5V
FAN ON:0V4.7V
0V
0.5V
8.1V
8.1V
30.1V
30.1V7.6V
7.6V
0V
10.4V
13.6V
10.4V 14.1V
13.6V

Technics SA-DV250 Specifications

General

Brand	Technics
Model	SA-DV250
Category	Amplifier
Language	English