37
38
39
40
41
42
43
44
45
46
47
48
SCHEMATIC DIAGRAM-4
MAIN CIRCUIT
IC302
M62456FPE1
PRE AMP
C335
10V33
C336
0.033
C337
0.033
R343 270K
R344
47K
R345
8.2K
R347
33K
C340
0.068
R346
33K
C338
0.15
C339 0.012
C329
470P
R341
8.2K
C327
100P
D301
MA111TX
C325
0.068
R339
8.2K
C323
0.068
V
EE
V
CC
22K
15K
10K
22K
3.3K
27K
3.9K
1.8K
22K
22K
GV
10dB
GV
6dB
1
2
3
4
5
6
7
8
9
10
13
14
15
16
17
18
19
20
21
22
23
24
11
12
C328
100P
D304
MA111TX
C326
0.068
R340
8.2K
C324
0.068
R338
68K
R337
68K
R335
56
C321
16V10
R336
56
C322
16V10
R392
22K
R383
22K
C330
100P
R342
12K
R350
4.7K
D302
D303
D302,303
MA111TX
R424
3.3K
C332
16V22
R426
5.6K
C380
4700P
R316
8.2K
C334
0.01
C333 0.01
R423
1K
C331
16V22
C342
1
C343
1
R352
10K
R351
10K
R425
47K
C379
8200P
R315
5.6K
R333
47
R391
1K
R390
1K
Q305
B1GFGCAA0001
MUTING
R314
1K
C310
16V22
R313
47K
R334
47
Q314
UN5115TX
MUTING
R721
220
C712
0.1
D722
MA8043MTX
Y
X
E D
P
N
V
F
W
m
k
U
f
IC726
C0CBADE00034
REGULATOR
IC729
C0CBAEE00003
REGULATOR
IC725
C0CBAHE00002
REGULATOR
IC728
C0CBAEE00004
REGULATOR
IC727
C0CBABC00119
REGULATOR
IC723
C0CBADE00031
REGULATOR
IC722
C0CBADE00034
REGULATOR
N
1
2
3
IN
GND
OU T
4
GND
1
2
3
VOUT
VIN
GND
1
2
3
VOUT
Vss
VIN
1
2
3
VOUT
Vss
VIN
1
2
3
VOUT
VIN
GND
1
2
3
GND
IN
OU T
1
2
3
IN
GND
OU T
C748
0.1
L722
M
C744
0.1
C740
10V4.7
D751
MA111TX
D752
MA1
1
1TX
N
C457
50V0.47
C726
0.33
L721
L
C761
0.1
C749
1
C755
1
C762
0.1
C751
0.1
C754
0.1
C739
0.1
R725
39K
C727
16V10
Q721
2SD1819ATX
SWITCHING
Q453
2SD1819ATX
FAN MOTOR DRIVE
R452
10K
D451
MA1
1
1TX
C454
6.3V100
R466
68K
C459
0.01
R454
4.7K
R451
4.7K
Q456
2SB1218TX
FAN MOTOR DRIVE
Q456
R465
100
C456
16V10
R468
22
D457
RL1N4003N02
Q455
Q455
B1ABGC000001
FAN MOTOR DRIVE
D456
MA728TX
D453
MA728TX
R467
100K
C458
0.01
R453
4.7K
Q452
UN5115TX
FAN MOTOR DRIVE
Q451
UN5211TX
FAN MOTOR DRIVE
Q454
2SB12190WL
FAN MOTOR DRIVE
K
L
R727
33K
Q722
B1BCJJ000001
REGULATOR
C753
16V47
R723
100
D732
MA8082MTX
C752
0.01
R737
1K
R730
2.2
R728
3.9K
R741
470
C723
0.01
C732
16V100
D736
MA8068MTX
C736
25V1000
D734
RL1N4003N02
D728
RL1N4003N02
C728
25V1000
Q724
B1BCJJ000001
REGULATOR
C733
0.33
C756
0.1
C735
0.1
D713
Q733
2SA20570P
REGULATOR
R739
0.47
R738
0.47
C747
1000P
C742
16V47
R733
470
R732
2.2K
R731
3.3K
D731
MAZ80910HL
D737
MA1
1
1TX
D725
MA143TX
Q727
2SD1819ATX
STABILIZER
R349
4.7K
Q729
2SA20570P
REGULATOR
D711-713
RL1N4003N02
D71
1
D712
R740
1K
D730
MA1
1
1TX
D729
MA111TX
C
R729
4.7K
C724
0.047
C757
35V10
D727
MAZ83000HL
C731
50V100
Q726
2SB621RSTA
REGULATOR
C722
0.047
C
D740
RL1N4003N02
A
D
A
B
C
D
E
F
G
C
RJ46
0
H
RJ45
0
RJ47
0
RJ73
0
RJ8
0
RJ53
0
RJ40
0
Z
RJ16
0
t
RJ35
0
RJ34
0
RJ33
0
SA-DT300(E,EB,EG) MAIN CIRCUIT DIAGRAM
D754
MA111TX
D753
MA1
1
1TX
-8.3V
-12V
-7.6V
-6.8V
-6.2V
-11.8V
0V
-6.2V
0V
-6.2V
5.1V
5.1V
-6.2V
-3.8V
5.2V
10V
12.5V
9.4V
13.2V
10V
12.5V
12.5V
13.2V
10V
0V
5.5V
5.5V
6.1V
-0.8V
0.6V
0V
-8V
-8.7V
-8.7V
-0.2V
0V
0V
0V
5.2V
-38.9V
-30.4V
-31V
8.5V
8.5V
5V
3.3V
8.5V
5V
8.5V
5V
8.5V
6.1V
9.4V
6V
13.5V
8.9V
5.8V
0V
0V
0V
0V
5.8V
0V
1.7V
1.7V
0V
0V
0V
0V
0V
0V
-6.1V
0V
0V
0V
0V
-6.3V
-6.3V
5V
5V
3.3V
9V
15.3V
:NEGATIVE VOLTAGE LINE
:POSITIVE VOLTAGE LINE
:AUDIO SIGNAL LINE
5.8V