Stereo Channel - YORKVILLE EXM 400 Service Manual

1 2 3
*NOTE: Mono operation is ensured on either jack until a second cable is connected
A
R81 R82
ring
W100 1/8W
15K0 562R0
J5 0805 0805
1/4in JCK
3921
5
.
C62
B
0805
4
RING
C65
0805
R91 R92
C
W100 1/8W
15K0 562R0
0805 0805
R98
R97
D
220R
220R
0603
0603
R101 R102
220R 220R
0603 0603
R103 R104
W100 1/8W
15K0 562R0
0805 0805
E
J6
1/4in JCK C74
3921
0805
5
.
U5IG
4
RING
C77
F
0805
R111 R112
W100 1/8W
15K0 562R0
0805 0805
C91
330P 50V
R118
0805
IGND W125
G
10K0
U7IG 0805
MC33078
2
7817
-
R28
W100
100R
0805 R125
R31
3 +
10K0
C93 W063
J7
0805
3 10R
0805 U7A
0603
2
T
R127
H
S W125
R 4
10K0
R132
1
0805
10K0
MC33078
R94
C172 0805 5
4186
W063 7817
+
3.5mm JCK 0805
10R
R95
0603
W100
100R
6 -
0805
U7B
R133
I
W125
10K0
C173
0805
330P 50V
0805
J
K
1 2 3
4 5 6 7
C61
330P 50V
0805
R83
PSGnd
W125
4K99
0805
R84
10K0 P5B
0805
MC33078
3
7817
+
C70
1 16V 10U
Elec
2 -
SO8
R88
10K0 U5A
0805
D5
R93
D1005
W125
4K99
0805
C69
330P 50V
0805
U5Gnd
U20Gnd
C71
330P 50V
0805
R105
W125
4K99
0805
R106
10K0
0805
MC33078
5
7817
+
C64
7 16V 10U
Elec
6 -
SO8
R108
U5B
10K0
0805
D6
D1005
R113
W125
4K99
0805
C79
330P 50V
0805
R119
W125
10K0
0805
C84
RCA_Left
1 16V 10U
Elec
SO8
R128 U7Gnd
W125
10K0
0805
C92
RCA_Right
7
16V 10U
Elec
SO8
+15V_5
R134
W125
10K0
LD7
0805
D15
RED
7704
Clip
D1005
CDSF4148
D16 R110
1K800
0805
D1005
CDSF4148
R114
1M
MMBTA14LTIG
0805
50V
Q6
100N C80
7701 0805
R117
SOT-23 D8
150K
0805
D1005
CDSF4148
D7
ClGnd D1005
4 5 6 7
8 9 10
C85
R140
100P 50V
0805
W100 R230
301R
W100
0805
4K99
MC33078
0805
R231
2 7817
-
W100
301R
1
0805
10U
3
+
SO8
U20A
C78
100P 50V
0805
R126 R85
W100 W100
301R 4K99
0805 0805
MC33078
R90
6 7817
-
W100 C30
301R 7
0805
10U
5
Elec
+
SO8
U20B
R99 R234
W125 W125
10K0 1K02 C158
0805 0805
470P 50V
0603
MC33078
R123
2 7817
-
W100
R238
10K0
1
W125
0805
R248
47R
3
+
W125 SO8 0805
10K0
R249
0805 U19A
W125
1K02
R87 R224
0805
W125 W125
10K0 1K02 C72
0805 0805
470P 50V
0603
MC33078
R138
6 7817
-
W100
R228
10K0
7
0805 W125
47R
5
+
0805
SO8
U19B
VREFH
VREFH
P4A
BLIN
50K
4462 P6B
R280
.
LEVEL_3-4
W125
CDSF4148
1K02
P4B
0805
.
DGND
VREFL
VREFL
8 9 10
11 12 13
R229
W125
1K02
0805 C121
3N3 25V
0805
C122 MC33078
R232
2 7817
-
W125
16V
R233
10K0
1
Elec
Ch3_HI_SENS+
0805 W125
R131
47R
3
+
W063 0805
SO8
10R
U27A
0603
R263
W125
1K02
R264
0805
W125
C124
1K02
0805
0805 C66
47P 50V
0805
MC33078
6 7817
-
R265
7
W125 Ch3_HI_SENS-
R266
47R
5
+
W063 0805
SO8
10R
U27B
0603
VCOMAD
R32
W125
50V
1K02
C68
100N
0805 C28
0805
3N3 25V
0805
MC33078
R96
2 7817 DGND
-
W125
16V
R100
10K0
1
Ch4_HI_SENS+
0805 W125
R129
47R
3
+
W063 0805
SO8
10R
U21A
0603
R252
W125
1K02
R260
0805
W125
1K02
C35
0805 C63
0805
47P 50V
0805
MC33078
6 7817
-
R261
7
Ch4_HI_SENS-
W125
R262
47R
5
+
W063 0805
SO8
10R
U21B
0603
Ch3_LO_SENS+
3-4LoGnd
+15V_3
MC33078
U21C
7817 7817
U27C
50V V+ V+
Ch4_LO_SENS+
C94
100N
0805 V- V-
SO8 SO8
MC33078
-15V_3
50V
C95
100N
0805
VREFH
DGND
P5A
P6A
BLIN
BLIN
10K
10K
4461
4461
R278
R279
Bass
Treble
W125 Bass_3_4
Treble_3_4
W125
1K02
1K02
0805
0805
VREFL
11 12 13
14 15 16
+15V_1
MC33078
7817
U7C
V+
50V 50V
100N C81 C82
0805
V- 100N 0805
SO8
U7Gnd
-15V_1
+15V_4
MC33078
U20C U19C
7817
7817 7817
U5C
V+ 50V
V+ V+
100N C89
0805 50V
V-
V- V-
SO8 100N
SO8 SO8
MC33078 MC33078
-15V_4

Stereo Channel

Section:
EXM400
Product(s):
PCB#: Rev#: EML Rev#: Sheet
M1567 V03 1
Modified: File: Tmp Date:
3/16/2016 CH 3_4 Stereo.SchDoc
14 15 16
17
A
B
C
D
E
F
G
H
U5Gnd
I
C90
0805
J
K
Of
1 *
04/15/2013
17