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Alesis Alpha 115 Service Manual page 6

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1
2
DL2
R109
R40
2.4K
3.0K
BLIU
GND
C15
C22
CN8
0.1uF
0.1u
C14
D
2
U1C
1
R42
4580M
POWER
GND
220R/2W
C11
C23
C10
0.1u
0.1uF
47u/63V
C21
47u/63V
LOW MUTE
C
C17
FL5R
L1
X2
X1
INPUT 1
FL5R
MIC1
XLR
L2
1
2
3
ZD1
4
12V1W
5
6
ZD2
12V1W
FL5R
L3
X2
X1
INPUT2
FL5R
MIC3
B
XLR
L4
1
2
3
ZD5
4
12V1W
5
6
ZD6
12V1W
R22
10E
SW2A
SW2B
1
4
2
5
3
6
P
SW 6P
GND
SW 6P
GND
C39
47P
R48
10K
MIC2
4
U6B
C33
2
_
3
7
A
4580M
MIX OUT
1
47uF/35V
+
R41
R43
47K
330E
GND
GND
GND
1
2
3
GND
+15V
C24
C26
C28
C36
C38
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
U2C
U3C
U4C
U5C
U6C
4580M
4580M
4580M
4580M
4580M
C25
C27
C29
C35
C37
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
LOW
-15V
HIGH
R1 6K8
C5
3.3N
R2 2.43K
3.3K
2
U4A
47u/63V
R107
1
R7
4580M
3
C1
470R
GND
HI MUTE
6K8
3.3N
R11
C16
R10
10K
3.3K
6
_
U4B
C2
R108
7
-5.5dBV
R12
4580M
5
470R
+
47u/63V
GND
22P
47u/25V
R16
4.7K
R14 1.2K
-10.16dBV
C12
C20
15K
R19
4.7K
R15
2
U1A
1
ZD3
4580M
3
20120410 change
12V1W
R18
ZD4
15K
12V1W
C8
22P
GND
R21
4.7K
R36
R37
C18
22P
1.2K
47u/25V
R33
R29
4.7K
15K
U5A
2
1
ZD7
4580M
3
12V1W
R30
ZD8
15K
12V1W
C40
22P
GND
C34
47P
+15V
R44
10K
-15V
R46
10K
2
R45
6
1
4580M
3
R47
10K
33K
5
U6A
GND
GND
R100
+15V
4.7K 1/4W
3
4
5
FROM DSP-UDA1345TS
DL1
1
CLIP
Enc2/P-D2
CN7
1K2
2
R
Enc1/P-D1
3
G
Enc0/P-D0
1
R9
Not USED/V-D3
SIGNAL
2
GND
ADCin/V-D2
3
Clip/V-D2
SIGN/LIMIT
Sign/V-D0
n.c/n.c
FL5R
L6
+18db
L5
FL5R
C31
R24
R23
2
6K8
HIGH OUT
4580M
GND
3
C6
22P
R3
R27
C7
6K8
12K
3.3N
R5 10K
R4
6
_
U3B
7
10K
LOW OUT
4580M
5
+
GND
5
GND
4
VR1
3
1
-2.36dBV
A50K
C19
22P
C9
R17 15K
R8
U1B
C13
6
_
U2B
R6
7
6
_
4580M
5
4.7K
+
4580M
5
47u/25V
+
GND
GND
5
GND
VR2
4
A50K
3
1
-2.36dBV
C30
22P
R38 15K
6
_
U5B
C32
R39
7
4580M
5
+
4.7K
47u/25V
GND
Q100
R102
A1015
D100
2.2K 1/4W
A
K
E
C
A
K
1N4148
R103
100K
R101
D101 1N4148
22K
R104
100K
C100
10u/25V
-15V
C102
220uF/25V
C101
POWER ON/OFF MUTE
GND
2.2uF/50V
4
5
6
7
CN2
P-C0/Not USED
15
16
P-D3/Enc3
13
14
R IN
11
12
Dgnd
9
10
+5VD
7
8
SW1
L in
5
6
ENCORDER
High
3
4
6
Low
1
2
7
GND
22P
R13
47K
NC
U3A
HI
R26
1
+5VD
12K
L
INPUT
R31
0R
22P
4.7K
-2.3dBV
CN3
7
1
1
2
MIX-out
2
GND
GND
U2A
2
1
4580M
3
HIGH OUT
GND
LOW OUT
HI MUTE
D102
R105
A
K
B
A
K
0R
Q101
1N4148
2SC2878
GND
LOW MUTE
D103
R106
B
Q102
0R
1N4148
2SC2878
Titel
TS 112PRO/TS 115PRO PRE.SCH
Size
GND
A3
Date:
File:
6
7
8
D
1
Enc0
2
Enc1
SW3A
SW3B
3
Enc2
1
4
4
Enc3
2
5
3
6
P
SW 6P
SW 6P
R20
NC
GND
GND
C
+5VD
IC4
2
GND
GND
7805
GND
+15V
R28
+15V
+5VD
NC
CN5
1
2
R34
47K
HI OUT
B
GND
CN6
1
2
R35
47K
LOW OUT
GND
A
Model No:
Revision
TS 112PRO/TS 115PRO
VER120320
9-Apr-2012
Sheet
1
of
1
TS 112PRO/TS 115PRO
Drawn By: YuShuaiWei
8

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