Page 1
7654321
8
D
1/2L1
INDUCTOR
! !
1/2L2
INDUCTOR
D1
KBU 608
RV2
10N221K
+300V
D
F1
R1
680K
R2
680K
R3
! !
C1
0.33u/275V~X2
C2
0.33u/275V~X2
!
2.5A
! !
S1
CH1'
CON3
1
2
3
CH1
CON3
!
1
2
3
!
RV1
10N471K
680K
RT1
1/2L1
C
5R
INDUCTOR
1/2L2
INDUCTOR
C16
2200P/1KV
TR1
C3
2200P/Y2 250V~
!
4
!
C4
2200P/Y2 250V~
R13
+Vc1
10/1W
1
!
3
J1
110V/220V
C20
2200u/35V
2
C22
100n/100V
!
!
RV3
10N221K
+Vc
C5
!
330u/200V
!
C6
330u/200V
C
EC40
-Vc1
R15
330
L3
8uH
L4
8uH
R16
24K3
R17
47K5
R18
1K
C21
2200u/35V
R19
+Vc1
221K
-Vc1
R20
4K75
R21
4K75
C24
1u/50V
-Vc
C23
100n/100V
CH2
3P
3
2
1
U1
TL431C
B
!
R4
22/0.5W
C14
10n/2KV
!
! !
C7
2200P Y2 250V~
C8
100n/250V
D3
HER104
C9
47u/35V
B
C10
10n/100V
R6
U2
NCP1271A
1
skip/latch
2
FB
3
CS
GND4DRV
R7
100K
HV
VCC
+300V
8
6
5
C15
10n/2KV
R8
47
4K75
D7
15V/1W
C11
100p/100V
C12
47u/35V
C13
100n/100V
R10
1K1
R5
47K5/2W
+300V
!
D6
1N4148
R9
51
D4
HER207
R11
10K
R12
0.1/2W
L5
BEAD
Q1
FQPF12N60C
!
D2
U1620G
D5
U1620G
C19
2200P/1KV
OP1
EL817C
!
C17
2200u/35V
C18
2200u/35V
R14
10/1W
A
Title
Note: J1 No part for 220V AC
1 2 3 4 5 6 78
Auro D208 D210 Power Ver1.3
Number RevisionSize
A3
Date: 13-Oct-2011 Sheet of
Drawn By:
A
Page 2
7654321
8
VCC+
D2
BAV99
C104
270P
R106
16K9
R107
1K5
123
X2
INPUT
R101
1K5
C101
2n5
R103
12K1
D1
BAV99
C105
VCC-
2
3
IC1A
MC4580
1U
1
D
2
R102
1K5
3
1
X3
LINK OUTPUT
C102
2n5
R104
12K1
R105
16K9
C103
VR1 VOL
A100K
6
5
IC1B
MC4580
OPT0
VCC+
M65CL (5K@1mA)
C106
10P
7
R108
16K9
**
270P
R161
82K
CLIP IN
R162
X1
12K
INPUT
C
T101
MMBTA06
R163
100
9
10
R164
10K
C107
100P
R109
33K
IC2D
TL074
T102
MMBTA06
R165
3K3
C108
1U
8
R111
1K
R110
27K
R166
4K7
C110
22n
** **
R112
1K
C109
4n7
VCC+
CLIP LED
LED 1 R
C151
10U/25V
**
R113
1K
C111
1n
**
VCC+
6
5
POWER LED
LED 2 G
R167
1K
IC2B
TL074
C112
4n7
7
C115
22n
R116
10K
VR2 TREBLE
B50K
R114
5K6
R115
10K
VR3 BASS
B50K
13
12
C116
22n
R117
10K
C113
4n7
C114
20P
IC2C
TL074
**
C118
220n
14
C117
R118
12K
220n
R119
4.02K
C119
220n
2
3
R120
100K
IC2A
TL074
1
D
C
9
R144
1K
4.2KHz
C133
270P
R147
12K
IC3C
TL074
IC4B
TL074
R150
8
10K
R151
2.49K
C134
R148
15K4
22P
R155
4.99K
R152
9
10
R149
7
10K
10K
8
IC4C
TL074
C135
15n
2
3
R156
4.99K
1
IC5A
TL074
C136
15n
6
5
R157
4.99K
7
IC5B
TL074
C137
15n
9
10
R158
4.99K
8
IC5C
TL074
C138
15n
R159
IC5D
TL074
14
470
TO LF PA
R168
no part
B
13
12
R153
3.57K
R154
3.57K
R160
1K2
TO HF PA
R169
C132
1n
R146
3K3
R121
12K
**
R123
43K
2
3
R125
1M
R124
1K
R126
27K
IC3A
TL074
C122
100n
C123
15n
1
R127
27K
6
5
R129
1M
R128
1K
R130
4K7
IC3B
TL074
C124
39n
C125
6n8
7
R131
47K
13
12
R133
1M
R132
1K
310Hz190Hz 130Hz
R134
3K3
IC3D
TL074
C126
47n
C127
10n
14
R135
47K5
13
12
R137
R136
1K
R138
1K5
IC4D
TL074
C128
10n
C129
4n7
14
150K
600Hz 735Hz
R139
43K
2
3
R141
1M
R140
1K
R142
15K
IC4A
TL074
C130
1n2
C131
1n2
1
R122
4K99
C120
100n
C121
B
6n8
10
R143
33K
6
5
R145
1M
680
**
IC2E
IC1C
MC4558
A
1 2 3 4 5 6 78
C139
TL074
100n
84
11 4
C140
**
100n
C141
100n
C142
100n
**
**
IC3E
TL074
11 4
C143
100n
C144
100n
**
**
IC4E
TL074
11 4
C145
100n
C146
100n
**
**
IC5E
TL074
11 4
C147
100n
C148
100n
**
**
VCC+
VCC-
C149
10U/25V
C150
10U/25V
TO LF PA
TO HF PA
CLIP IN
X4'
1
2
3
4
5
6
A
Title
A3
Date: 7-Oct-2011 Sheet of
Auro D208 PreAmp
Number RevisionSize
Ver 1.7
Drawn By:
Page 3
C3
47u/35V
7
8
VC+ VC-
C42
15n
OUT1
BOOT1
BOOT2
OUT2
C43
15n
100n
C54
100n
+VC
R22
2K2
C48
220P
R39
1M
R40
1M
C49
220P
R41
10
R42
10
C27
100n
C30
100n
R6
20K
R5
4K7
L3
47uH
C50
220P
C47
220P
C16
1u
L4
47uH
C2
100n
R1
4E7
C57
10n/500V
D1
4148
R15
1K
R37
18K
R38
5K6
C17
1u
C58
10n/500V
+VCC
R2
22
C19
100n
R3
22
C20
100n
C1
no part
R16
3K6
R9
47K
R7
510K
R23
47K
D8
4148
R32
240K
L5
BEAD
L6
BEAD
13
12
C18
100n
2
3
HF OUT
R10
100K
IC4A
TL074
C4
1/50
R24
100K
IC4D
TL074
C12
4u7/50V
1
14
1/2L7
61uH
1/2L7
61uH
D2
4148
COMP OUT
D4
4148
D3
4148
X6
2P
C56
10n
C21
10n
Title
Number RevisionSize
A3
Date: 7-Oct-2011 Sheet of
1
2
Auro D208 D210 PA V er1.3
Drawn By:
D
C
B
A
R13 22K
11
BUFFER DRIVE
ININ+
SGND
MUTE
STBY
R12
10K
7
+VS
STBY-GND1-VS8-PWVS
C25
C33
220P
2
3
4
10
9
C24
470n
C22
HI IN
100n/500V
D
R19
1K
R18
22K
R14
1K
R33
VDD
10
470n
L1
OUTPUT
GND
2
BEAD
C10
330u/35V
C11
330u/35V
L2
BEAD
3
C14
1000u/35V
C15
1000u/35V
R34
10
+15V
C6
47u/25V
VSS
C23
100n
D5
18V
-VC
R31
10K
MUTE
R20
100K
R17
100
T1
SST113
+VCC
R27
510K
R11
330K
T2
+VC VC+
C31
1
C29
100n
100n
C32
100n
IC1
ML7815
INPUT
X5
1
2
3
CON3
-VC VC-
C
+VC
SST113
IC2
LM7915
-VC
2
INPUT
OUTPUT
+15V-15V
HI IN
LOW IN
GND
1
COMP OUT
C28
B
A
100n
X3
6P
1
2
3
4
5
6
3
C9
47u/25V
-15V
LOW IN
C26
100n
R8
47
C35*
no part
C5
1/50
R28
5K6
R30
5K6
C8
1/50
R21
750K
-VCC
C34
100n
VDD VSS
C38
100n
VDDA1
10
8
9
11
2
5
4
1
VDDA2
VSSA1
12
3
VSSA2
C39
100n
C36
220P
IN1P
IN1M
SGND1
SGND2
IN2P
IN2M
C37*
no part
C41
100n
VSS VDD VC-VC+ VC- VC+ VC-
VSS
C40
100n
IC5
TDA8920CTH/N1+ 118
24
VSSD
C44
220P
13
BOOT LOAD
BOOTSTRAP
CLIP DET
15
-VC
C7
10/25
R25
2K
Rt
100
VC+
R29
30K
C13
47u/100V
C51
100n
MODE
OSC
6
7
13
19
n.c.
PROT
C53
100n
OUT
+PWVS
+VCC
R36
10K
D6
5V6
18
C46
100n
STABI
IC3
TDA7293
14
12
6
5
6
5
R26
10K
9
10
MUTE
VC+ VC-
C45
100n
VDDP1
VSSP1
14
23
VSSP2
VDDP2
IC4B
TL074
IC4C
TL074
C52
100n
16
17
15
22
21
20
C55
Page 4
54321
6
D
D
LF
X2'
2P
1
2
C
X4'
2P
2
1
R1 8 OHM 15W
++
-
+
-
-
SPEAKER
C
HF
SPEAKER
+
-
F 20W/12V
B
A
Title
B
Date: 1-Nov-2011 Sheet of
1 2 3 4 56
Auro D208 D210 HSP PRO
Number RevisionSize
Ver1.0
Drawn By:
B
A
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