Page 1
8
1
D
C110
22n
5
C112
VR2 TREBLE
4700P
**
6
R113
1K
C111
1000P
**
VCC+
5
POWER LED
LED 2 G
R167
1K
IC2B
TL074
7
R116
10K
C115
0.022uF
B50K
R114
5K6
R115
10K
VR3 BASS
B50K
13
12
C116
0.022uF
R117
10K
C113
4700P
C114
20P
IC2C
TL074
**
14
321
VCC+
2
3
VCC-
CLIP IN
D2
BAV99
C104
270P
R106
16K9
IC1A
MC4580
R161
82K
1
X2
INPUT
123
D
3
2
R101
1K5
R102
1K5
1
X3
LINK OUTPUT
C101
2500P
C102
2500P
R103
12K1
R104
12K1
R105
16K9
D1
BAV99
C103
270P
R168
10
X1
INPUT
R107
1K5
C105
1U
R162
10K
VR1 VOL
A100K
6
5
VCC+
T101
MMBTA06
R163
1K5
C106
10P
7
R108
IC1B
MC4580
16K9
OPT0
M65CL G (BLUE)
4
C107
100P
**
R109
C108
** **
R111
10
R164
10K
R165
1K5
9
33K
IC2D
TL074
T102
MMBTA06
1U
8
1K
R110
27K
R166
4K7
C151
10U/25V
R112
1K
C109
4700P
VCC+
CLIP LED
LED 1 R
C117
220n
R118
12K
76
C118
220n
R119
4.02K
C119
220n
2
3
R120
100K
IC2A
TL074
C
C133
R146
C132
3K3
10
R143
3K
6
5
R145
150K
9
R144
1K
270P
IC3C
TL074
IC4B
TL074
R147
12K
R150
R148
15K4
R149
10K
10K
R151
2.49K
C134
22P
R152
10K
9
10
IC4C
TL074
R154
3.57K
8
R153
3.57K
R155
4.99K
C135
0.015uF
2
3
IC5A
TL074
1
R156
4.99K
C136
0.015uF
6
5
IC5B
TL074
R157
4.99K
7
C137
0.015uF
9
10
IC5C
TL074
8
R158
4.99K
C138
0.015uF
R159
IC5D
TL074
14
100
R160
100
TO LF PA
TO HF PA
13
12
8
7
X4'
1
2
3
4
5
6
Title
A3
5
6
Auro D412 PreAmp
Number RevisionSize
7 8
1 4
Ver 1.5
fo teehS0102-voN-61:etaD
1000P
R121
12K
R122
43K
B
A
R123
R126
4K99
33K
10K(D415)
C120
0.12uF
C121
33n
1 2 3 4
R124
1K
**
2
3
IC3A
R125
TL074
1M
C122
0.1uF
C123
0.027uF
1
R127
15K
6
5
R129
1M
R128
1K
R130
15K
IC3B
TL074
C124
0.039uF
C125
4700P
7
IC1C
MC4558
R131
R134
39K
39K
C126
R132
1000P
1K
13
12
R133
1M
C139
0.1u
84
C140
0.1u
C127
2500P
14
IC3D
TL074
**
**
IC2E
TL074
11 4
C141
0.1u
C142
0.1u
**
IC3E
TL074
**
R138
R135
12K
0
6K8(D415) 49K9(D415) 0
R136
1K
13
12
IC4D
TL074
R137
1M
**
C143
0.1U
11 4
**
C144
0.1U
C128
820P
C129
1n2
14
IC4E
TL074
11 4
C146
0.1U
C145
0.1U
R139
R142
43K
47K
R140
1K
2
3
IC4A
R141
TL074
1M
**
IC5E
TL074
11 4
**
C148
0.1U
C147
0.1U
C130
820P
C131
470P
1
**
**
VCC+
VCC-
TO LF PA
TO HF PA
CLIP IN
C149
10U/25V
C150
10U/25V
C
B
A
Page 2
8
R42
MF72 10D 20
R42
MF72 10D 20
D
C
B
C5
0.1u
4
R19
43K
**
5
R10
4.7 1W
X3-1
X3-2
C8
0.1u
D3
1N4148
D9
1N4148
C26
6800u/50V
**
C27
6800u/50V
**
C28
6800u/50V
C29
6800u/50V
R15
1K
R20
5K6
VCC+
C17
4u7/50V
HV+
HV-
R14
3K6
LV+
2
LV-
R16
47K
13
12
C9
1u/50V
AC3(30VAC)
C30
0.01u
C31
0.01u
AC4(30VAC)
R21
47K
R18
100K
R17
510K
2
3
D14
KBL04
1
3
**
R22
240K
14
IC2C
TL074M
R23
100K
IC2A
TL074M
C32
0.01u
4
C33
0.01u
1
D10
1N4148
D11
1N4148
D12
1N4148
CLIP OUT
X1'
CON4
X5'
CON4
1
2
3
4
1
2
3
4
321
R7 30k
C1
0.022u/100V
HF IN
D
VCC+
VC+
R24
R27
1M
1M
6
R26
1M
VCC-
R29
100K
5
R28
1M
VC-
9
10
C
C10
0.1u
R25
100K
C11
0.1u
B
IC2B
TL074M
IC2D
TL074M
C12
1u/50V
D4
1N4148
7
8
D5
1N4148
R1
10K
T2
MMBTA06
VCC-
R31
10K
R32
22K
R2
12K
R3
10K
C2
0.47uF/63V
LV+
T1
MMBFA06
R30
1K
C14
10u/25V
D6
1N4148
R33
2K2
C13
1u/50V
R4
1K
R11
33K
VCC+
C15
1u/50V
D7
BAV103
D8
BAV103
D1
1N4148
R34
510K
R35
1M
AC3(30VAC)
AC4(30VAC)
R6
10K
R5
33K
C3
4u7/50V
R12
22k
R13
22K
VCC+
C18
10u/25V
C19
10u/25V
R36
150K
6
5
R37
100K
R38 +t
100
VCC+
VCC-
10
D2
1N4148
IC3B
MC4560M
2
3
4
9
R94
200
IN-
IN+
SGND
MUTE
STBY
C4
1u/50v
2
R95
2K2
3
R96
200
R97
2K2
7
1
7
R39
2K2
IC4
LM317
Vout
IC3
LM337
Vout
+VS
STBY-GND
ADJ
1
ADJ
1
11
BUFFER DRIVE
-VS8-PWVS
LV-
C16
10uF/25V
Vin
Vin
MUTE
3
2
4
LV+
13
BOOT LOAD
BOOTSTRAP
CLIP DET
15
C6
0.1u
R40
120 /2W
**
C20
47u/50V
D13
KBL04
R41
180 /2W
**
C21
47u/50V
IC1
TDA7293
OUT
+PWVS
**
LV+
2
LV-
C22
0.01U
C23
0.01U
14
12
6
5
C7
22u/100V
R9
5K6
LF AP OUT
AC1(60VAC)
1
3
AC2(60VAC)
C24
0.01U
C25
0.01U
R8
20k
X5
CON4
1
2
3
4
X1
CON4
1
2
3
4
76
VCC+VCC-
X4
1
2
3
4
5
6
HF IN
LF IN
CLIP OUT
F1
T5A/250V
C34
CBB X2 0.047uF/275VAC
F1
T2.5A/250V
C34
CBB X2 0.047uF/275VAC
C35
Y2 1000pF/275VAC
SW1
POWER SW
110VAC 50/60Hz
C35
Y2 1000pF/275VAC
SW1
POWER SW
A
:
1 2 3 4
Title
Auro D412 H POWER AMP &POWER
Number RevisionSize
A3
5
6
7 8
220VAC 50/60Hz
fo teehS0102-voN-61:etaD
2 4
Ver1.41
A
Page 3
D
C
B
A
LF IN
D37
47V
AC1(60VAC)
AC2(60VAC)
1
R44
10K
D38
BAV103
R43
10K
R89
22K
D39
BAV103
C36
0.47u/63V
T3
SST113
R45
100K
C54
0.1u/100V
R91
150
R92
43K
MUTE
R46
47K
C37
0.1u
R90
10K
C56
22u/100V
C58
** **
100u/25V
**
R84
470
R93
1K
C38
100P/50V
OPT1
M65CL D
(YELLOW DOT)
T16
MMBTA42
C57
4u7/100V
R48
47K
2
3
R47
10K
R85
47K
**
C39
20P/50V
IC3A
MC4580M
R86
8K2
R98
1K5
C55
22u/100V
32
654
7
8
HV+(+84.5V)
C47
1
D40
18V
R49
560
1/2D16
BAV99
1/2D15
BAV99
1/2D16
BAV99
R88
4K7 1/4W
R87
100K
1/2D15
BAV99
D41
BAV103
1/2D17
BAV99
1/2D18
BAV99
VCC+
1/2D17
BAV99
1/2D18
BAV99
VCC-
D19
BAS16
R50
2K2
R51
2K2
R55
2K2
D22
BAS16
**
C40
10P/100V
R52
2K2
T4
MMBTA42
R53
560
R54
560
T5
MMBTA92
D21
BAV103
C42
10P/100V
C44
22u/100V
R57
560
R56
560
D20
BAV103
C41
47P/50V
R62
47
R58
390
T6
MMBTA92
R63
100
R59
2K2
R64
5K6
R65
100
T7
MMBTA42
R60
390
R61
47
D24
BAV103
D23
BAV103
C43
22u/100V
T8
MMBTA42
R66
470
R67
1K
R68
470
T9
MMBTA92
R70
4K7 /1W
R69
470K 1W
R72
470K
R73
470K
F1
4A
R71
2.2 /1W
C45
0.1u
D26
15V
D27
15V
C46
0.1u
R74
2.2 /1W
F2
4A
D28
MR856
R75
4K7 /1W
T12
IRFP140N
LV+
T11
BSS139
LV-
1000P
R76
47
D25
MR856
T10
D
BSS139
VR1
S
470
D
S
D30
15V
T13
IRFP9140N
R78
47
R79
47
D29
15V
C48
1000P
C49
1000P
1
2
4
5
C52
1000P
R80
47
D31
BAV103
T14
SAP16N
R77
470
T15
SAP16P
R82
4K7 /1W
D32
BAV103
D33
18V
R81
4K7 /1W
VC+ = +41V
VC- = -41V
C53
22u/50V
D34
18V
C51
0.1u
R83
4.7
D35
US1G
C50
22u/50V
D36
US1G
D
C
X3
CON4
4
3
2
1
HF PA OUT
B
HV-(-84.5V)
A
Title
A3
Date: 16-Nov-2010 Sheet of
1
2 3 4
5
6
AURO D412 L POWER AMP
3 4
87
noisiveRrebmuNSize
Ver 1.3
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