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1
2
3
A
C90
IG
180P
50V
Line In Left
0805
R17
.
R25
R15
C11
22U
W125
1/8W
1/8W
N1
50V
0805
4K99
4K99
J1:1
562R0
N2
1N
C46
0805
2
50V
-
7817
N3
6509
XLR-PHONE
MC33078
B
3
R
R
+
1N
C45
IG
SO8
0805
J1:2
T
50V
T
R16
R24
R10
C10
22U
W125
1/8W
1/8W
S
50V
S
0805
4K99
4K99
6509
562R0
C91
XLR-PHONE
180P
50V
0805
IG
C
4140
J2
R35
W100
0805
10K0
R52
6
-
7817
W100
.
R34
0805
C12
22U
7
MC33078
10K0
1/8W
50V
681R
SO8
5
+
U20:2
D
IG
IG
4140
J3
N4
2
-
N5
7817
R37
C13
22U
1
1/8W
MC33078
C2
N6
50V
681R
U20:1
E
3
+
SO8
63V
150N
.
D25
R38
W100
CDSF4148
20K0
D1005
F
IG
180P
Line In Right
R12
R13
R14
.
C15
22U
W125
1/8W
1/8W
N7
50V
0805
4K99
4K99
562R0
J4:1
N8
1N
C19
0805
2
50V
-
N9
6509
G
MC33078
XLR-PHONE
3
R
+
R
1N
C21
IG
0805
50V
J4:2
T
R21
R22
R23
T
C22
22U
W125
1/8W
1/8W
50V
S
S
0805
4K99
4K99
562R0
6509
XLR-PHONE
180P
H
IG
J5
4140
R27
W100
0805
10K0
R28
6
-
W100
7817
.
R29
0805
C23
22U
7
MC33078
10K0
1/8W
50V
681R
SO8
5
I
+
U11:2
IG
IG
4140
J6
N10
2
7817
-
N11
R31
C24
22U
1
J
MC33078
1/8W
C25
50V
N12
681R
U11:1
3
+
SO8
63V
150N
.
D26
R32
W100
CDSF4148
20K0
D1005
K
1
2
3
4
5
6
7
+15V
1
U3:1
R36
200K
0805
R41
7805
MMBT3906LT1
W125
200K
0805
Q13
C20
63V
150N
R56
IG
15K0
0805
R55
20K0
C3
R11
W100
63V
150N
10K0
0805
IG
C16
R4
100P
50V
15K0
C9
0805
50V
C6
C8
R33
0805
W100
0805
10K0
63V
63V
6
220N
220N
-
7817
R19
7
MC33078
68K
7817
0805
5
U3:2
R20
+
1
SO8
W100
U4:1
10K0
SO8
0805
GND
C92
R149
R150
50V
10K0
4K99
0805
0805
R7
IG
IG
GND
100K0
Q11
7701
MMBTA14LTIG
SOT-23
CDSF4148
R6
W125
18K00
GND
D12
CDSF4148
D1005
R30
20K0
C26
R47
W250
63V
150N
100R
.
W7
1206
GRN
ZD1
24V0
.
.
5W0
BLK
1N5359B
W9
.
GND1
ZD2
24V0
5W0
1N5359B
IG
IG
4
5
6
7
8
9
10
+15V
R58
R59
W100
W100
W100
10M
10M
0805
0805
R61
3
7828
+
W100
R62
100R
5
2
BIAS
W100
0805
R63
15K0
- 4
U9:1
W100
0805
LM13700MX
100R
Dual VCA
0805
C47
GND
R64
R65
W100
180P
50V
10K0
18K2
0805
0805
0805
R66
0805
47K
R68
5
W100
0805
10K0
C17
6
63V
-
7817
6
220N
6
7
-
7817
MC33078
R1
R57
7
5
+
MC33078
W100
W100
SO8
12K1
12K1
U6:2
5
+
SO8
0603
0603
U5:2
C14
63V
D24
100N
CDSF4148
D1005
GND
+15V
+15V
CLIP
PWR
LD3
LD1
RED
GRN
6405
6408
+15V
R5
R3
+15V
1K800
1K800
+15V
8
7817
V+
MC33078
V-
GND
U6:3
-15V
SO8
4
D11
-15V
D1005
-15V
GND
+15V
+15V
+15V
+15V
+15V
+15V
8
8
7817
7817
V+
-15V
V+
MC33078
-15V
MC33078
V-
U4:3
-15V
V-
SO8
-15V
U3:3
4
SO8
4
GND
GND
-15V
-15V
8
9
10
11
12
13
MC33078
6
7817
-
U12:2
7
R96
5
+
W100
0805
18K2
D33
R20A
C20A
W100
2U2
63V
CDSF4148
10K0
R42
D1005
0805
4K7
R102
WFR
W063
0603
47K
C30
R88
W100
180P
50V
0805
18K2
0805
R80
LM13700MX
- 13
+15V
W100
7828
0805
R77
100R
12
BIAS 15
W100
R81
0805
+ 14
15K0
U9:2
W100
0805
100R
Dual VCA
GND
Q2
R67
R70
R72
W100
W100
W100
7805
0805
0805
0805
10M
10M
10K0
MMBT3906LT1
C48
GND
P2:2
M
B
.
10K
4434
7817
+
C7
LEVEL
R18
P2:1
M
7
C1
MC33078
T
B
B
W100
100U
16V
0805
U4:2
10K
4434
-
100R
SO8
16V
R9
10U
W125
R26
0805
150K
W100
2
0805
-
7817
10K0
1
MC33078
3
U5:1
+
SO8
D14
CDSF4148
D1005
GND
+15V
+15V
+15V
+15V
+15V
8
7817
+15V
8
V+
7817
MC33078
V+
V-
MC33078
U11:3
-15V
V-
4
SO8
U20:3
-15V
SO8
-15V
4
-15V
-15V
-15V
GND
GND
+15V
+15V
+15V
8
7817
V+
MC33078
V-
U5:3
SO8
-15V
4
Yorkville Sound Ltd.
-15V
-15V
550 Granite Court
Pickering, ON
GND
Canada L1W 3Y8
www.yorkville.com
11
12
13
14
15
16
R26A
C21A
1/8W
100P
50V
MMBT3906LT1
47K5
CDSF4148
D22A
R27A
SOT23
D1005
1/8W
Q20A
7805
2K0
Q22A
MMBT3904
C74
1206
D20A
63V
SOT-23
4N7
50V
CDSF4148
7838
2U2
R23A
D1005
W100
0805
C23A
10K0
2
-
1
63V
MC33078
Q23A
2U2
3
U12:1
+
7817
GND
7838
C24A
CDSF4148
D21A
GND
R25A
SOT-23
MMBT3904
D1005
1/8W
D23A
MMBT3904
Q21A
CDSF4148
2K0
D1005
7838
R37A
C22A
1/8W
100P
50V
47K5
SOT-23
R75
100K
0805
SOT23
100N
100N
C57
1206
1206
100V
100V
W1
-15V
1
6
W1:1
N13
2
6
W1:2
N14
+15V
3
GND
6
W1:3
R60
2
-
7817
N15
6K98
1
4
0805
WFR
6
W1:4
MC33078
N16
C4
C18
3
+
SO8
5
63V 220N
63V
220N
SENSE-
6
W1:5
U6:1
N17
6
SENSE+
6
W1:6
R8
N18
68K
D10
0805
CDSF4148
D1005
GND
LM13700MX
(VCC)
7
Dual VCA
{Function}
7828
U9:3
LM13700MX
(VCC)
10
Dual VCA
{Function}
7828
U9:4
Product(s):
YX18SPC
Description:
500W Powered Subwoofer
PCB#:
M1655
Rev#:
V01
EML Rev#:
01
Sheet
Modified:
23/11/2015
File:
Input.SchDoc
Tmp Rev:
14
15
16
17
A
N19
B
N20
C
D
E
W1_
F
G
H
I
J
K
1
Of
5
V029
17
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