YORKVILLE EXM 70, Service Manual, Page: 30 / 79

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K K
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H H
G G
F F
E E
D D
C C
B B
A A
Bass Boost / Limit
Section:
Product(s):
BaseBoost.SCHDOC
P1640 2 7 Sheet Of PCB#: Rev#:
Modified:
V01
File:
2018-08-22
EXM-Mobile
EML Rev#: 01
Tmp Rev:
V031
W100
15K0
0805
R277
W100
2K0
0805
R299
W125
3K32
0805
R296
W100
27K4
0805
R227
100V 100N
1206
C102
5
0
V
1
0
N
1206
C171
W100
27K4
0805
R276
W
1
0
0
15K0
0805
R280
W100
10K0
0805
R230
200V
SOD-323
D23
W
1
2
5
200K0
0805
R307
1
6
V
1
0
U
1206
C175
MMBT3906LT1
S
O
T
2
3
7805
Q38
W
1
0
0
100R
0805
R301
W
1
0
0
15K0
0805
R286
MC33078
7817
SO8
V-
4
V+
8
U2:3
W
1
0
0
10K0
0805
R300
50V 10N
1206
C134
W100
4K99
0805
R229
W125
120K0
0805
R231
100V 100N
1206
C95
W
1
2
5
6K20
0805
R278
Bass Boost / Limit
MC33078
7817
SO8
V-
4
V+
8
U16:3
MC33078
7817
SO8
3
2
1
+
-
U2:1
LM13700MX
SO16
BIAS
15 12
+
14
-
13
1
6
U24:2
MC33078
7817
SO8
5
6
7
+
-
U2:2
MC33078
7817
SO8
5
6
7
+
-
U16:2
-12V
+V_PRE
+V_PRE
+V_PRE
-12V
BC847C
SOT23
Q37
LM13700MX
SO16
9
10
(VCC)
U24:4
LM13700MX
SO16
8
7
(VCC)
U24:3
LM13700MX
SO16
BIAS
2 5
+
3
-
4
1
U24:1
50V 100N
0805
C172
-12V
50V 100N
0805
C177
+V_PRE
W100
4K99
0805
R283
W100
4K99
0805
R240
W100
4K99
0805
R282
W
1
0
0
100R
0805
R305
W
1
0
0
10K0
0805
R302
W100
13K
0805
R294
W100
13K
0805
R295
+V_PRE
W
1
0
0
20K5
0805
R285
W100
6K98
0805
R292
W100
27K4
0805
R291
MC33078
7817
SO8
3
2
1
+
-
U16:1
ECO
ECO.SCHDOC
Assembly
Assembly.SchDoc
History
History.SchDoc
W125
562R0
0805
R304
W125
562R0
0805
R284
LM13700MX
SO16
V+
11
V-
6
U24:5
+V_PRE
-12V
Gnd
W
1
0
0
10M
0805
R303
+V_PRE
BB+
BB-
BBref
BBret
BBsig
5X7MM .2in
16V
10U
C139
W100
6K98
0805
R298
W
1
0
0
10M
0805
R306