Alto AMX-100, Service Manual, Page: 8 / 28

1
2
3
4
5
6
78
A B C D
8
7
6
5
4
3
2
1
D C B A
AMX
-100F
X
.S02
Ti
te
l
Siz
e
F
ile:
Date:
Dr
aw
n By
:
Sheet
Rev
is
ion
Model No:
14-
Sep-
2004
KEVI
N LI
N.
ST
EREO
AUX
& SENDS & MAI
N
O
U
T
& 2T
K & CT
RL R & PHO
N
ES
3
3o
f
AMX
-100F
X
VER040914
A2
C188 100P
C69
47u/
25V
R203
33K
R131
22K
C189 100P
C75
47u/
25V
R204 33K
R132
22K
VR26B
W
50K
VR26A
W
50K
3 2
1
U13A
4580M
5 6
7
U13B
4580M
R205
56K
C43
22P
C77
47u/
25V
R177
2K
R206
56K
C44
22P
C78
47u/
25V
R180
2K
5 6
7
U14B
NJM
4580M
3 2
1
U14A
NJM
4580M
R178
2K7
C116
22P
LE
F
T-
B
U
S
RI
G
H
T
-BUS
C117
22P
R179
2K7
C71
47u/
25V
C81
47u/
25V
5 6
7
U15B
4580M
3 2
1
U15A
4580M
R163
30K
C119
22P
R230
3K6
C72
47u/
25V
VR25B
W
50K
MA
IN
MIX
VR25A
W
50K
R162
30K
C118
22P
R231
3K6
C73
47u/
25V
C74
47u/
25V
C83
47u/
25V
R65 10K0
R72 10K0
R211 120R
3c 5e 1a
4d 2b
X1
2
JY
-6351G-
02-
250
R210 120R
3c 5e 1a
4d 2b
X1
5
JY
-6351G-
02-
250
R218 120R
R209
120R
MAIN OUT
LEFT
RIG
H
T
R232
1K
R233
1K
L(WHITE)
R(RED)
C84
47u/
25V
R195
20K
3 2
1
U16A
4580M
R200
33K2
C123
22P
C85
47u/
25V
R75
10K0
R182
5K11
C76
47u/
25V
R193
20K
5 6
7
U16B
4580M
R194
33K2
C120
22P
C79
47u/
25V
R66
10K0
R181
5K11
TA
PE I
N
1 2 3
SW
1A
PS-
22E85L
LE
F
T-
B
U
S
4 5 6
P
SW
1B
PS-
22E85L
RI
G
H
T
-BUS
2TK TO
M
IX
1 2 3
SW
2A
PS-
22E85L
R234
27K
2TK TO
3 2
1
U17A
4580M
VR27A
W
50K
C80
47u/
25V
R238
7K5
R164
36K
C46
22P
C82
47u/
25V
R67 10K0
3 2
1
U23A
BA15218N
5 6
7
U23B
BA15218N
3c 5e 1a
4d 2b
X1
8
JY
-6351G-
02-
250
R223 120R
R219
120R
CTRL ROOM OUT
C122
22P
R71
10K0
R216
120R
3c 5e 1a
4d 2b
X1
6
JY
-6351G-
02-
250
R217
120R
PHONES
R215
120R
R214 120R
4 5 6
P
SW
2B
PS-
22E85L
R235
27K
5 6
7
U17B
4580M
VR27B
W
50K
C86
47u/
25V
R239
7K5
R165 36K
C45
22P
C93
47u/
25V
R76 10K0
3c 5e 1a
4d 2b
X1
7
JY
-6351G-
02-
250
3 2
1
U22A
BA15218N
5 6
7
U22B
BA15218N
R224 120R
R222
120R
R70
10K0
C121
22P
8 4
U22C
BA15218N
8 4
U23C
BA15218N
R241
47R
R240
47R
C91
47u/
25V
C92
47u/
25V
AUX RETURNS
L-
M
E
TE
R
R-
MET
E
R
3c 5e 1a
4d 2b
X1
1
JY
-6351G-
02-
250
AUX SENDS
R208 120R
R207 120R
R192
20K
C70
47u/
25V
3 2
1
U24A
4580M
R161
39K2
C42
22P
AU
X
-1
ROOM
C144 100P
C145
100P
TA
PE OUT
MA
IN
MIX
T
R
S
RN TN
LE
F
T-
B
U
S
RI
G
H
T
-BUS
T R
S
RN TN T R
S
RN TN
LEFT
RIGHT
R226 30K
R227
30K
CONTROL
PHO
N
ES/
CTRL RO
O
M
1
4
2
5
3
6
X2
1
SCP6873NS3232
LEFT
RIG
H
T
C176 100n C177 100n
MO
UT
-L
MO
UT
-R
LEF
T
-B
US
RIGHT
-BUS
AUX
-1
8 4
U17C
8 4
U16C
+V
CC
-VC
C
8 4
U24C
C160 100n
C161 100n
C162 100n C165 100n
C166 100n
C167 100n
8 4
U15C
8 4
U14C
C168 100n
C169 100n
C170 100n C173 100n
8 4
U13C
C174 100n
C175 100n
U24=
N
JM
4580M
U13~ U17=
N
JM
4580M
C233
47u/
25V
5 6
7
U24B
4580M
R46 36K
C38
22P
R322
30K
VR30 W
50K
AUX SENDS
AMX
-100MKII/
100FX MKII
(3
/3)
D12
1N4002
D13
1N4002
ZD1 1N5261
C401
47uF
/100V
D15
1N4002
D14
1N4002
C402
47uF
/100V
TR
2
1
7815A
C408
1000uF
/35V
PG
N
D
C403
47u/25V
D16
4148
C409
1000uF
/35V
C404
47u/25V
D11
4148
C405
100uF
/100V
PG
N
D
R441
390K
C407
47uF
/100V
R442 10K
R443
10R
R440
20K
C406
47uF
/100V
TR
2
3
T
IP122
+V
CC
-VC
C
PH
PW
R
TR
2
2
7915A
PHANT
O
M
PWR
(47V 0.
5W
)
1 2
CN1 A
C
IN
SW
1
1
PG
N
D
R
444
0R
0
PHANTOM
SW
1
0
TR
2
0
7805
PG
N
D
+5
V
D
C400
1000uF
/16V
PG
N
D
DG
ND
R
445
RETURN1
ST
EREO AUX
3c 5e 1a 4d 2b
X9
JY
-6351G
-02-250
3c 5e 1a 4d 2b
X10
JY
-6351G
-02-250
RIGHT 1 LEFT 1
EFXRTN-L EFXRTN-R
AUX
-RT
N1
-L
AUX
-RT
N1
-R
R340
AU
X
-S
E
N
D
VR31A W
50K
VR31B W
50K
C221 4.
7uF
C223
4.
7uF
3
5
7
RL1B RY
-5
W
-K
4
6
8
RL1C RY
-5
W
-K
EF
X
R
T
N
-L
EF
X
R
T
N
-R
C222
4.
7uF
EFX
R
T
N
-L
EFX
R
T
N
-R
AU
X
-S
E
N
D
(M
UTE)
(M
UTE)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CN6
HEADER 8X
2
1 2 3 4
COM
EN2
SDB161PVB15FS
1 2 3 4
COM
EN1
SDB161PVB15FS
1 2
3 4
5 6
7 8
AR1 680R*
4
1 2
3 4
5 6
7 8
AR2 680R*
4
DG
ND
DG
ND
+5
V
D
+5
V
D
R319
220R
R320
220R
SW
9
PS-
22E85NL
DG
ND
(M
UTE)
1 2
RL1A
RY
-5
W
-K
+5
V
D
C214
100N
D8
4148
LD17 RED
1 2 4 8
1 2 4 8
+V
CC
PEAK(
FLI
C
KER)
MU
T
E
(G
L
O
W
)
PRESET
VARI
AT
ION
3c 5e 1a
4d 2b
X2
2
JY
-6351G-
02-
250
FOOTSWITCH
AUX
-SEND
JP1
PG
N
D
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
CN2 FX-D
SP
GN
D
+V
CC
-VC
C
N
etC
221_1
N
etC
223_1
N
etT
R
15_C
+5
V
D
N
etC
N
6_16
N
etU
49_1
N
etC
222_1
PG
N
D
DG
ND
N
etL
D
17_2
N
etC
197_2
N
etR
292_2
N
etR
278_2
DSP
N
etR
278_2
N
etR
292_2
N
etC
197_2
N
etC
N
6_16
N
etU
49_1
N
etL
D
17_2
N
etT
R
15_C
N
etC
221_1
N
etC
223_1
N
etC
222_1
R446
5K6
C410
47u/
25V
--- 6 ---
For AMX-100FX MKII only