Alto AMX-220-FX-USB Service Manual
MODEL: AMX 220FX-USB
CONTENT
1. INTRODUCTION……………………………………………………………………………..1
2. TECHNICAL SPECIFICATION……………………………………………………………..2
3. BLOCK DIAGRAM……………………………………………………………....................3
4. SCHEMATIC DIAGRAM…………………………………………………………………….4
5. WIRING DIAGRAM………………………………………………………………………….13
6. PCB LAYOUT………………………………………………………………………………..14
7. TEST PROCEDURE………………………………………………………….....................18
8. EXPLODED VIEW & MECHANICAL PARTS LIST……………………………………..25
9. BOM…………………………………………………………………………………………..27
1. INTRODUCTION
- 8 MIC input channels with gold plated XLR and balanced LINE inputs
- 4 stereo input channels with balanced TRS jacks
- Ultra-low noise discrete MIC pre-amps with +48V Phantom Power
- Extremely high headroom offering more dynamic range
- Insert on each of mono input channels
- Switchable Low-cut filter on each mono channel
- +4dBu/-10dBV selector on each stereo channel
- Warm, natural 4-babd fixed frequency EQ on each stereo channel
- Peak LED on each channel
- Mute/ALT 3-4, SOLO function on each channel
- 2 AUX Returns for additional functionality
- Control room and Phone outputs
- 2-Track inputs assignable to Main Mix, Control Room/Phones outputs
- Highly accurate 12-segment bar graph meters
- 24 bit digital effect processor
- 256 effects (16 presets*16 variations)
- Effect on/off by means of MUTE switch or a footswitch connected to the DFX
FOOTSWITCH
- 16 Bit 32~48KHz ADC/DAC USB input and output with selectable track
- No software drivers are need with windows XP or Mac OSX
- Performance and excellent noise figures
- Adjust the input sensitivity on each stereo channels
- Stereo USB input and output with selectable track
- Manufactured under ISO9001 certified management system
- 1 -
2. TECHNICAL SPECIFICATION
Mono input channels
Stereo input channels
Impedance Microphone input
Equalization Hi shelving
DSP SECTION A/D and D/A converters
USB SECTION
Microphone input
Frequency response
Distortion (THD&N)
Gain range
SNR (Signal Noise Rated)
Line input
Frequency response
Distortion (THD&N)
Sensitivity range
Line input Balanced
Frequency response
Distortion (THD&N) 0.005% at +4dBu, 1KHz
Channel insert return
All other inputs
Tape out
All other output
Mid sweep
HI-MID
MID-Low
Low shelving
DSP resolution
Type of effects
Presets
Controls
ADC / DAC 16 Bit 32~48KHz
Fully Compliant with USB 1.1 specification
No software drivers are need with windows XP or MAC OSX
Electronically balanced ,discrete input configuration
10Hz to 55KHz, 3dB
0.005% at +4dBu, 1KHz
0dB to 44dB(MIC)
115dB
Electronically balanced
10Hz to 55KHz, 3dB
0.005% at +4dBu, 1KHz
+15dBu to -45dBu
10Hz to 55KHz, 3dB
1.4K ohm
2.5K ohm
10Kohm or greater
1K Ohm
120 ohm
15dB @ 12KHz
15dB @ 100Hz~8KHz
15dB @ 3KHz
15dB @ 500Hz
15dB @ 80Hz
24 bit
24 bit
Hall, Room, Vocal & Plate REVERBS
Mono & Stereo DELAY (max DELAY TIME 650ms)
Chorus, Flanger & Reverb MODULATIONS
REVERB+DELAY, REVERB+CHORUS
REVERB+FLANGER combinations
256
16-position PRESET Selector
16-position VARIATION selector
PEAK LED
MUTE SWITCH with LED indicator
Main Mix Section Noise (Bus noise )
Max output
AUX Return gain range
AUX Sends max out
Power supply
(AC/AC Adaptor)
Physical
Main voltage
Power Consumption
Dimension (W D H) 420mm 440mm 43mm(16.54" 17.3 1.69")
Net weight
Fader 0 dB, channels muted:-100.0dBr (ref.:+4dBu)
Fader 0 dB,all input channels assigned and set to
UNITY gain:-90dBr(ref.:+4dBu)
+22dBu balanced XLR,
+22dBu unbalanced,1/4" jacks
OFF to +15dB
+22dBu
USA/ Canada 100-120V~,60Hz
Europe 210-230V~,50Hz
U.K/Australia 240V~,50Hz
36watts
4.86Kg
- 2 -
USB PORT
3
TO PC
DAC
Vout L
Vout L
USB
PROTOCOL
CONTROLLER
USB MODULE
1110987654321
12
3. BLOCK DIAGRAM
AMX-220FX USB
Vin L
ADC
Vin L
STEREO CHANNELS 15
D
STEREO CHANNELS 16
1
2
3
1
2
3
USB PLAYBACK
MONO CHANNEL 1
MONO CHANNEL 2
LEFT-BUS
RIGHT-BUS
AUX-1
AUX-2
AFL-L
AFL-R
SOLO(PFL)
ALT-3(L)
ALT-4(R)
EFX SEND
LOGIC
DEF SENDDEF SEND
1
3
1
3
2
2
USB RECORD
D
MUTE/ALT3 4 LED
MONO INPUT CHANNELS ( 1-8)
PHANTOM
POWER
+48V
2
M C IN
LINE IN
C
3
1
MIC GAIN 0~60dB
LINE IN TRIM +15dB~ 45dB
GAIN
+
INSERT
LO CUT
1
2
3
75Hz
HI PASS
3c
R
4d
RN
2b
TN
1a
T
5e
S
LO M H HIL M
STEREO INPUT CHANNELS (9-16)
3c
R
4d
RN
2b
TN
1a
T
5e
S
-
-
LEFT(MONO)
R GHT
3c
R
4d
RN
2b
TN
1a
T
5e
S
+
+
(LEVEL +4dBu/ 10dBv)
B
STEREO AUX RETURN 1
STEREO AUX RETURN 2
A
X8
JY 6351G 02 250
X9
JY 6351G 02 250
X10
JY 6351G 02 250
X11
JY 6351G 02 250
3c
R
4d
RN
2b
TN
1a
T
5e
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
FX OUT L
FX OUT R
PRESETS
VARIATIONS
MUTE
DSP FOOTSWITCH
PEAK
3K
4 BAND EQ
+/ 15db
3K
4 BAND EQ
+/ 15db
+
+
+
+
DSP BOARD
12K50080
12K50080
LO (FREQ) HI
M D
4 BAND EQ
+/ 15db
PEAK
FADER
AUX1 RETURN
12K100Hz 8kHz80
AUX2 / DSP
RETURN
AUX2 / DSP
LEVEL
POST
PRE
1 2
1 2
POST
PRE
POST
1 2
PRE
1 2
POST
PRE
BALANCE
AUX1
EFX TO AUX 1
2
2
PAN
AUX2
AUX1
1
3
1
3
AUX2
MAIN/ALT
SOLO
()
ON
MUTE/ALT3 4 LED
MAIN/ALT
SOLO
()
ON
LEFT BUS
ALT 3
RIGHT BUS
ALT 4
AFL L
AFL R
SOLO(PFL)
AUX 2
AUX 1
LEFT BUS
ALT 3
RIGHT BUS
ALT 4
AFL L
AFL R
SOLO(PFL)
AUX 2
AUX 1
LEFT BUS
RIGHT BUS
LEFT BUS
AUX 1
RIGHT BUS
AUX 1
2TK
TAPE OUT
MAIN OUT
R
T
S
2
3
1
MAIN MIX LEFT
R
T
S
2
3
1
MAIN MIX RIGHT
ALT 3-4 OUT
R
T
S
ALT 3(L)
R
T
S
ALT 4(R)
2TK
TAPE IN
LEFT
RIGHT
C
LEFT
RIGHT
AUX 1
AUX 2
LEFT BUS
RIGHT BUS
ALT 3(L)
ALT 4(R)
LEFT BUS
RIGHT BUS
LEFT BUS
RIGHT BUS
ALT 3 4 TO MIX
2TK TO MIX
MAIN MIX
LEVEL
ALT3 4
LEVEL
AUX1
LEVEL
AUX2
LEVEL
ALT 3 4
AUX SEND
R
T
S
AUX SEND1
R
T
S
AUX SEND2
+4dB/MIC
2TK LEVEL
2TK
MAIN MIX
CONTROL ROOM SOURCE
SOLO CTRL
AFL L
AFL R
SOLO MODE
PFL LED
()
SOLO(PFL)
(LEVEL SET)
AFL
()
PFL
CONTROL ROOM OUTPUT
CONTROL ROOM
& PHONES
ALT-3(L)
ALT-4(R)
LOGIC
AUX-1
AUX-2
SOLO(PFL)
EFX SEND
AFL-L
AFL-R
LEFT-BUS
RIGHT-BUS
SOLO ACTIVE
LEFT METER
RIGHT METER
PHONES OUTPUT
R
T
PHONES
S
R
T
S
R
T
RIGHT
S
LEFT
B
A
1 2 3 4 5 6 7 8 9 10 11 12
- 4 -
D
C
B
A
LINE IN 9
LEFT
LINE IN 10
RIGHT
LINE IN 11
LEFT(MONO)
LINE IN 12
RIGHT
STEREO AUX
RETURN1
(MONO / MASTER)
STEREO AUX
RETURN2
+VCC
VCC
4. SCHEMATIC DIAGRAM
(TO AMX-220FXPU2)
+VCC
VCC
PH LED
GND
+5V
PGND
MAIN R (UNBAL)
X23
MAIN L (UNBAL)
X24
X1
X2
8
CN4
+VCC
-VCC
PH LED
GND
+5V
PGND
1
2
3
4
5
6
7
8
2 0 8P
MAIN OUT
(BALANCED)
RIGHT
LEFT
AMX220FXPU1 USB
AMX220FXPU1 USB S01
D
C
B
A
7654321
R136
R2
2K20
R4
2K20
R8
2K20
R10
2K20
R12
2K20
R16
2K20
2
3
6
5
2
3
6
5
R6
2K20
R14
2K20
C77
22P
U8C
4580M
2
3
6
5
2
3
6
5
84
7K15
C43
C1
47u/25V
22P
U1A
4580M
(LEVEL +4dBu/-10dBv)
R137
7K15
C44
C3
47u/25V
22P
7
U1B
4580M
(LEVEL +4dBu/-10dBv)
R140
7K15
C45
C5
47u/25V
22P
U2A
4580M
(LEVEL +4dBu/-10dBv)
R141
7K15
C46
C7
47u/25V
22P
7
U2B
4580M
(LEVEL +4dBu/-10dBv)
R159
14K
1
C79
22P
C73
100N
C74
100N
C67
47u/25V
7
C68
47u/25V
1
C71
47u/25V
7
C72
47u/25V
84
U9C
4580M
U8A
4580M
R162
14K
U8B
4580M
C78
22P
R160
14K
U9A
4580M
C80
22P
R161
14K
U9B
4580M
TP7
TP8
TP9
TP10
AUX-RTN1-L
AUX-RTN1-R
AUX-RTN2-L
AUX-RTN2-R
C75
100N
C76
100N
PRE-CH9
R71
20K
PRE-CH10
R72
20K
PRE-CH11
R73
20K
PRE-CH12
R74
20K
LINE IN 13
LEFT(MONO)
LINE IN 14
RIGHT
LINE IN 15
LEFT(MONO)
LINE IN 16
RIGHT
JY-6351G-02-250
JY-6351G-02-250
JY-6351G-02-250
JY-6351G-02-250
R1
C17
100P
C18
100P
C19
100P
C20
100P
C21
100P
C22
100P
C23
100P
C24
100P
10K
10K
R5
10K
R9
10K
C6
C8
EFXRTN R
84
U3C
4580M
R3
C2
22P
R7
10K
C4
22P
R11
10K
22P
R13
10K
R15
10K
22P
C234
100P
C235
100P
C236
100P
C237
100P
SW1A
PS-22E85L
SW1B
PS-22E85L
SW2A
PS-22E85L
SW2B
PS-22E85L
TP23
TP24
TP25
TP26
C35
100N
C39
100N
84
U4C
4580M
R131
680R
R135
2K20
R132
680R
R36
R138
2K20
R133
680R
R37
R139
2K20
R134
680R
R38
R142
2K20
C65
47u/25V
C66
47u/25V
C70
47u/25V
C69
47u/25V
C36
100N
C40
100N
R35
5K1
5K1
5K1
5K1
R100
10K
R102
10K
R103
10K
R101
10K
3c
R
4d
RN
2b
TN
1a
T
5e
X4
JY-6351G-02-250
X5
JY-6351G-02-250
X6
JY-6351G-02-250
X7
JY-6351G-02-250
LEFT 1
RIGHT 1
LEFT 2
RIGHT 2
84
U1C
4580M
S
R
3c
4d
RN
2b
TN
1a
T
5e
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
3c
4d
2b
1a
5e
X8
JY-6351G-02-250
3c
4d
2b
1a
5e
X9
JY-6351G-02-250
X10
JY-6351G-02-250
X11
JY-6351G-02-250
C33
100N
C37
100N
1 2 3 4 5 6 78
84
U2C
4580M
EFXRTN L
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
C34
100N
C38
100N
R93 R94
+VCC
VCC
X16
X17
X18
X19
AUX-SEND1
AUX-SEND2
CTRL-R-L
CTRL-R-R
R79
47R
R80
47R
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
R
RN
TN
T
S
R
RN
TN
T
S
R
RN
TN
T
S
R
RN
TN
T
S
120R
120R
C47
47u/25V
C48
47u/25V
R43
120R
R44
120R
R45
R46
120R
R47
120R
R48
120R
R49
R50
120R
C41
100N
U5C
BA15218N
C42
100N
C25
100P
C26
100P
C27
100P
C28
100P
C29
100P
C30
100P
C31
100P
C32
100P
3c
R
4d
RN
2b
TN
1a
T
5e
S
X12
JY-6351G-02-250
3c
R
4d
RN
2b
TN
1a
T
5e
S
X13
JY-6351G-02-250
3c
4d
2b
1a
5e
JY-6351G-02-250
3c
4d
2b
1a
5e
JY-6351G-02-250
84
R17
10K
SW3A
PS-22E85L
R18
10K
C9
22P
R20
10K
SW3B
PS-22E85L
R21
10K
C10
22P
R27
10K
SW4A
PS-22E85L
R29
10K
C14
22P
R31
10K
SW4B
PS-22E85L
R33
10K
C16
22P
84
U6C
BA15218N
AUX SEND1
AUX SEND2
CTRL ROOM OUT
LEFT
X14
RIGHT
X15
R87
680R
R91
2K20
R88
680R
R92
2K20
R89
680R
R95
2K20
R90
680R
R96
2K20
R97
5K1
R98
5K1
R151
5K1
R152
5K1
+VCC
R39
2K20
R19
2K20
R40
2K20
R22
2K20
R41
2K20
R30
2K20
R42
2K20
R34
2K20
L(WHITE)
R(RED)
R25
7K15
2
3
R26
7K15
6
5
R28
7K15
2
3
R32
7K15
6
5
TR4
7805
PGND
U3A
4580M
47u/25V
1
C49
C11
22P
(LEVEL +4dBu/-10dBv)
7
C50
47u/25V
C12
22P
U3B
4580M
(LEVEL +4dBu/-10dBv)
U4A
4580M
47u/25V
1
C51
C13
22P
(LEVEL +4dBu/-10dBv)
7
C52
47u/25V
C15
22P
U4B
4580M
(LEVEL +4dBu/-10dBv)
X3
SCP6873NS3232
1 4
2 5
3
6
+5V
C195
1000uF/16V
PGND
TP5
PRE-CH13
R75
20K
TP6
PRE-CH14
R76
20K
TP11
1
3
CH15
R77
SW14A
PS-22E85L
TP12
4
6
CH16
R78
SW14B
PS-22E85L
TAPE IN TAPE OUT
R81
1K
R82
1K
MAINL
MAINR
2TK-IN-L
2TK-IN-R
C105
47uF/25V
2
C106
47uF/25V
5
PRE-CH15
R125
20K0
GND
PRE-CH16
R126
20K0
GND
(TO AMX-220FXMN1)
AUX-RTN1-L
AUX-RTN1-R
AUX-RTN2-L
AUX-RTN2-R
AUX-SEND1
AUX-SEND2
CTRL-R-L
CTRL-R-R
2TK-IN-L
2TK-IN-R
C63
22P
R23
10K
CTRL-R-R
C64
22P
R24
10K
CTRL-R-L
ALT3-L
ALT4-R
MAIN-L-3
MAIN-L-2
MAIN-R-3
MAIN-R-2
SW5A
PS-42E85L
P
SW5B
PS-42E85L
2
3
2
3
CN1
2.0-12P
R55
120R
R56
120R
R57
120R
R58
120R
R59
120R
1
2
3
120R
4
5
6
U5A
BA15218N
U6A
BA15218N
1
2
3
4
5
6
7
8
9
10
11
12
R60
R61
120R
R84
5K1
R62
120R
CN2
X21
X22
P
SW5C
PS-42E85L
P
SW5D
PS-42E85L
R51
120R
7
R52
120R
R53
120R
7
R54
120R
2.0-12P
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
R67
120R
R68
120R
R69
120R
R86 5K1
R70
120R
(TO AMX-220FXMN1)
ALT3-L
ALT4-R
MAINR
MAIN-R-2
MAIN-R-3
MAINL
MAIN-L-2
MAIN-L-3
EFXRTN-L
EFXRTN L
EFXRTN-R
EFXRTN R
FOOTSWITCH-1a
ALT-3 (LEFT)
3c
R
4d
RN
2b
TN
1a
T
5e
S
JY-6351G-02-250
ALT-4 (RIGHT)
3c
R
4d
RN
2b
TN
1a
T
5e
S
JY-6351G-02-250
R83
5K1
6
1
5
U5B
BA15218N
6
1
5
U6B
BA15218N
AMX-220FXPU1-USB(1/2)
CN3
2.0-12P
R63
120R
R
RN
TN
T
R64
S
120R
R65
120R
R
RN
TN
T
R66
S
120R
PHONES
3c
4d
2b
1a
5e
X20
JY-6351G-02-250
3c
4d
2b
1a
5e
X25
JY-6351G-02-250
1
2
3
4
5
6
7
8
9
10
11
12
3c
4d
2b
1a
5e
JY-6351G-02-250
3c
4d
2b
1a
5e
JY-6351G-02-250
2
3
1
JY-5030-030G
2
3
1
JY-5030-030G
PRE-CH9
PRE CH9
PRE-CH10
PRE CH10
PRE-CH11
PRE CH11
PRE-CH12
PRE CH12
PRE-CH13
PRE CH13
PRE-CH14
PRE CH14
PRE-CH15
PRE CH15
PRE-CH16
PRE CH16
MAINR
MAINL
R85
5K1
FOOTSWITCH
FOOTSWITCH-1a
(TO AMX-220FXMN1)
321
4
- 5 -
NEW
D
C
B
A
CH1
MAINL
CH2
MAINR
CH15
LEFT-BUS
CH16
RIGHT-BUS
MAINL
MAINR
LEFT-BUS
RIGHT-BUS
R104
10K0
R106
10K0
C101
47uF/25V
R123
3K3
C103
47uF/25V
R124
3K3
2
3
6
5
1
U13A
4580M
7
U13B
4580M
R109
10K0
C86
22P
U10A
4580M
R113
10K0
C87
22P
U10B
4580M
1
7
R116
56K
2
3
R117
56K
6
5
C90
22P
C91
22P
R107
10K0
R108
10K0
USB MIXER
1
3
4
6
1
3
4
6
VINL
2
SW11A
SW 2WAY
USB RECORD
VINR
5
SW11B
SW 2WAY
VOUTL
2
SW12A
SW 2WAY
USB PLAYBACK
VOUTR
5
SW12B
SW 2WAY
VINL
VINR
VOUTL
VOUTR
+VCC
-VCC
CN9
USB MIXER
12
11
10
9
8
7
6
5
4
3
2
1
84
U10C
4580M
D+
D-
VINL
VINR
VOUTL
VOUTR
C93
100n
C97
100n
AMX-220FXPU1-USB(2/2)
R99
D+
D-
CH1
CH2
LEFT-BUS
RIGHT-BUS
0R
L1
0R
+5V
USB GND
+VCC
-VCC
GND
VINL
VINR
GND
VOUTL
VOUTR
84
U13C
4580M
C96
100n
C100
100n
CN8
CON5
1
2
3
4
5
CN7
USB B TYPE
4
3
2
1
CH1
CH2
LEFT-BUS
RIGHT-BUS
D
USB GND
C
B
A
1 2 34
1110987654321
AMX-220FXPU2-USB (1/2)
12
- 6 -
R19
51K1
R27
51K1
R20
51K1
R28
51K1
470P
PH PWR
C12
470P
PH PWR
C97
22u/35V
C9
470P
PH PWR
C98
22u/35V
C99
22u/35V
C10
470P
PH PWR
C100
22u/35V
C101
22u/35V
C11
C102
22u/35V
C103
22u/35V
C104
22u/35V
R33
11K0
C113
47u/50V
R65
6K81 1/4W
R66
6K81 1/4W
R67
6K81 1/4W
R68
6K81 1/4W
R69
6K81 1/4W
R70
6K81 1/4W
R71
6K81 1/4W
R72
6K81 1/4W
C114
47u/50V
R34
11K0
R35
11K0
C115
47u/50V
C116
47u/50V
R36
11K0
R37
11K0
C117
47u/50V
C118
47u/50V
R38
11K0
R39
11K0
C119
47u 50V
C120
47u/50V
R40
11K0
U1A
R89
R105
4580M
3
D5
4148D24148
R49
3K60
+VCC VCC
C25
47P
+VCC VCC
D3
4148D44148
R50
3K60
D14
4148
R51
3K60
+VCC
R52
3K60
+VCC VCC
+VCC VCC
+VCC VCC
R 4
3K 0
+VCC VCC
+VCC VCC
R56
3K60
VCC
D11
4148
D15
4148
D22
4148
D27
4148
D25
4148
C26
47P
R53
3K60
C27
47P
R55
3K60
C28
47P
2
VR1
O10K
R81
27R
C129
000u/10V
6
5
3
2
D10
4148
VR2
O10K
R82
27R
D12
C130
4148
000u/10V
6
5
3
2
D13
4148
VR3
O10K
R83
27R
D23
C131
4148
000u/10V
6
5
3
2
D24
4148
VR4
O10K
R84
27R
D26
C132
4148
6
000u/10V
5
U1B
4580M
U2A
4580M
U2B
4580M
U3A
4580M
U3B
4580M
U4A
4580M
U4B
4580M
U1~ U16=
10K0
1
R106
5K11
C66
22P
C67
22P
R107
5K11
7
R90
10K0
R91
10K0
1
R109
5K11
C69
22P
C70
22P
R110
5K11
7
R92
10K0
R93
10K0
1
R112
5K11
C72
22P
C73
22P
R113
5K11
7
R94
10K0
R95
10K0
1
R115
5K11
C75
22P
C76
22P
R116
5K11
7
R96
10K0
NJM4580M
5K11
R108
5K11
R111
5K11
R114
5K11
C65
22P
C68
22P
C138
0 22u/50V
C71
22P
0 22u 50V
C74
22P
0 22u 50V
3
2
3
2
3
2
C139
3
2
C140
R137
1K3
C137
0 22u/50V
R145
62K
R138
1K3
R146
62K
R139
R147
62K
R148
62K
U9A
4580M
R117
5K11
C77
22P
C142
0 22u/50V
U10A
4580M
C78
22P
C144
0 22u 50V
4580M
C79
22P
C146
0 22u/50V
1K3
U12A
4580M
R120
5K11
C80
22P
R140
1K3
U11A
C148
0 22u/50V
C161
47u/25V
1
C141
0 22u/50V
6
5
1
R118
5K11
C143
0 22u/50V
6
5
C163
47u/25V
1
R119
5K11
C145
0 22u/50V
6
5
C164
47u/25V
1
C147
0 22u/50V
6
5
U9B
4580M
C162
47u/25V
U10B
4580M
U11B
4580M
U12B
4580M
R153
20K
LO CUT
1
2
3
SW1A
PS 22E85L
R161
6K8
C169
47u/25V
7
4
5
6
P
SW1B
PS 22E85L
R169
20K
LO CUT
1
R154
20K
2
3
SW2A
PS 22E85L
R162
6K8
C170
47u/25V
7
R163
6K8
C171
47u/25V
7
4
5
6
P
SW2B
PS 22E85L
R170
20K
LO CUT
1
R155
20K
2
3
SW3A
PS 22E85L
4
5
6
P
SW3B
PS 22E85L
R171
20K
LO CUT
1
R156
20K
2
3
SW4A
PS 22E85L
R164
6K8
C172
47u/25V
7
4
5
6
P
SW4B
PS 22E85L
R172
20K
R
RN
TN
T
S
C174
47u/25V
R
RN
TN
T
S
C175
47u/25V
R
RN
TN
T
S
C176
47u/25V
R
RN
TN
T
S
C173
47u/25V
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
INSERT1
3c
4d
2b
1a
5e
X13
JY 6351G 02 250
RTN CH1
INSERT2
X14
JY 6351G 02 250
RTN CH2
INSERT3
X15
JY 6351G 02 250
RTN CH3
INSERT4
X16
JY 6351G 02 250
RTN CH4
RTN CH1
RTN CH2
RTN CH3
RTN CH4
MIC 5
X5
SMC 6 02
LINE IN5
JY 6351G 02 250
MIC GAIN 10~ 60dB
LINE IN GAIN +10~ 40dB
MIC 6
X6
SMC 6 02
LINE IN6
JY 6351G 02 250
MIC 7
X7
SMC 6 02
LINE IN7
JY 6351G 02 250
MIC 8
X8
SMC 6 02
LINE IN8
JY 6351G 02 250
C13
470P
R13
4
47R
2
3
1
R9
47R
3c
4d
2b
1a
5e
X17
X18
X19
X20
C21
470P
R21
R22
51K1
51K1
C14
470P
R14
4
47R
2
3
1
R10
47R
3c
4d
2b
1a
5e
C15
470P
R29
R30
51K1
51K1
C16
470P
R15
4
47R
2
3
1
R11
47R
3c
4d
2b
1a
5e
C17
470P
C18
470P
R16
4
47R
2
3
1
R12
47R
3c
4d
2b
1a
5e
C19
470P
C23
470P
PH PWR
R24
R23
51K1
51K1
R32
R31
51K1
51K1
C105
22u/35V
C20
470P
PH PWR
C107
22u/35V
C22
470P
PH PWR
C109
22u/35V
C111
22u/35V
C24
470P
PH PWR
C106
22u/35V
C108
22u/35V
C110
22u/35V
C112
22u/35V
R73
6K81 1/4W
R74
6K81 1/4W
R75
6K81 1/4W
R76
6K81 1/4W
R77
6K81 1/4W
R78
6K81 1/4W
R79
6K81 1/4W
R80
6K81 1/4W
C125
47u/50V
C126
47u/50V
R47
11K0
R41
11K0
C121
47u/50V
C122
47u/50V
R43
11K0
C123
47u/50V
C124
47u/50V
R44
11K0
R45
11K0
R46
11K0
C127
47u/50V
C128
47u/50V
R48
11K0
C165
C91
22P
0 22u/50V
0 22u 50V
0 22u 50V
U13A
3
2
C151
0 22u/50V
R149
62K
3
2
C154
3
2
C157
3
2
C160
47u/25V
4580M
1
R133
5K11
C90
22P
C149
0 22u/50V
C150
0 22u/50V
R141
1K3
6
5
U13B
4580M
U14A
C166
4580M
47u 25V
1
R134
5K11
C92
C152
22P
0 22u/50V
C153
0 22u/50V
R142
1K3
6
5
U14B
R150
62K
R152
62K
4580M
C167
U15A
47u/25V
4580M
1
R135
5K11
C94
C155
22P
0 22u 50V
C156
0 22u/50V
R143
1K3
6
5
U15B
4580M
R151
62K
U16A
C168
4580M
47u/25V
1
R136
5K11
C96
C158
22P
0 22u 50V
C159
0 22u/50V
R144
1K3
6
5
U16B
4580M
R165
6K8
7
C177
47u/25V
R166
6K8
C178
47u 25V
7
R167
6K8
C179
47u 25V
7
R168
6K8
C180
47u 25V
7
LO CUT
1
R157
20K
2
3
SW5A
PS 22E85L
4
5
6
P
SW5B
PS 22E85L
R173
20K
LO CUT
1
R158
20K
2
3
SW6A
PS 22E85L
4
5
6
P
SW6B
PS 22E85L
R174
20K
LO CUT
R159
20K
SW7A
PS 22E85L
P
SW7B
PS 22E85L
R175
20K
LO CUT
R160
20K
SW8A
PS 22E85L
P
SW8B
PS 22E85L
R176
20K
U5A
4580M
R97
U8B
U5B
4580M
U6A
4580M
U6B
4580M
U7A
4580M
U7B
4580M
U8A
4580M
4580M
R121
10K0
5K11
1
R122
5K11
C81
22P
C82
22P
R123
5K11
7
R98
10K0
R99
10K0
1
R125
5K11
C83
22P
C84
22P
R126
5K11
7
R100
10K0
R101
10K0
1
R128
5K11
C85
22P
C86
22P
R129
5K11
7
R102
10K0
R103
10K0
1
R131
5K11
C87
22P
C88
22P
R132
5K11
7
R104
10K0
C89
22P
R124
5K11
R127
5K11
C93
22P
R130
5K11
C95
22P
3
D16
4148
D18
4148
D19
414
D31
414
D32
414
D30
4148
VR5
O10K
1000u/10V
VR6
O10K
1000u/10V
VR7
O10K
1000u/10V
O10K
1000u/10V
2
R85
27R
C133
6
5
3
2
R86
27R
C134
6
5
3
2
R87
27R
C135
6
5
3
2
VR8
R88
27R
C136
6
5
D9
R57
4148D64148
3K60
VCC VCC
C32
47P
VCC VCC
D7
4148D84148
R42
11K0
R58
3K60
D20
R59
4148
3K60
VCC VCC
C29
47P
VCC VCC
D17
4148
R60
3K60
R61
D21
3K60
4148
VCC VCC
C30
47P
VCC VCC
D28
4148
R62
3K60
D33
R63
4148
3K60
VCC VCC
C31
47P
VCC VCC
D29
4148
R64
3K60
INSERT5
3c
R
4d
RN
2b
TN
1a
T
5e
S
X21
JY 6351G 02 250
C181
47u/25V
RTN CH5
RTN CH5
INSERT6
3c
R
4d
RN
2b
TN
1a
T
5e
S
X22
JY 6351G 02 250
C182
47u/25V
RTN CH6
RTN CH6
INSERT7
3c
R
4d
RN
2b
1
2
3
4
5
6
1
2
3
4
5
6
TN
T
S
C183
47u/25V
R
RN
TN
T
S
C184
47u/25V
1a
5e
JY 6351G 02 250
RTN CH7
INSERT8
3c
4d
2b
1a
5e
JY 6351G 02 250
RTN CH8
X23
RTN CH7
X24
RTN CH8
D
C
B
C1
D
MIC 1
X1
SMC 6 02
LINE IN1
JY 6351G 02 250
MIC GAIN 10~ 60dB
LINE IN GAIN +10~ 40dB
MIC 2
X2
SMC 6 02
LINE IN2
C
JY 6351G 02 250
MIC 3
X3
SMC 6 02
LINE IN3
JY 6351G 02 250
B
MIC 4
X4
SMC 6 02
LINE IN4
JY 6351G 02 250
470P
R1
4
47R
2
3
1
R2
47R
3c
4d
2b
1a
5e
X9
X10
X11
X12
C2
470P
R17
51K1
C3
470P
R3
4
47R
2
3
1
R4
47R
3c
4d
2b
1a
5e
C4
470P
R25
51K1
C5
470P
R5
4
47R
2
3
1
R6
47R
3c
4d
2b
1a
5e
C6
470P
R18
51K1
C7
470P
R7
4
47R
2
3
1
R8
47R
3c
4d
2b
1a
5e
C8
470P
R26
51K1
CN1
2.0 12P
(TO AMX 220FXMN2)
RTN CH1
C34
100n
84
+VCC
U1C
A
1 2 3 4 5 6 7 8 9 10 11 12
VCC
C35
100n
C33
100n
84
U2C
C36
100n
C37
100n
84
U3C
C39
100n
C38
100n
84
U4C
C40
100n
C41
100n
84
U5C
C44
100n
C42
100n
84
U6C
C45
100n
C43
100n
84
U7C
C46
100n
C47
100n
84
U8C
C50
100n
C49
100n
84
U9C
C51
100n
U10C
C48
100n
84
C52
100n
U11C
C53
100n
84
C56
100n
U12C
C54
100n
84
C57
100n
U13C
C55
100n
84
C58
100n
U14C
C59
100n
84
C62
100n
U15C
C60
100n
84
C63
100n
U16C
C61
100n
84
C64
100n
RTN CH2
RTN CH3
RTN CH4
RTN CH5
RTN CH6
RTN CH7
RTN CH8
1
2
3
4
5
6
7
8
9
10
11
12
+VCC
VCC
PH LED
GND
+5V
PGND
CN2
(TO AMX 220FXPU1)
+VCC
VCC
PH LED
GND
+5V
PGND
CN2 0 8P
1
2
3
4
5
6
7
8
PH LED
+VCC
DGND
PGND
VCC
+5V
GND
CN3
2.0 12P
(TO AMX 220FXMN1)
+VCC
VCC
+5V
GND
DGND
PGND
AMX220FXPU2 USB
1
2
3
4
5
6
7
8
9
10
11
12
AMX220FXPU2 USB S01
A
321
4
AMX-220FXPU2-USB (2/2)
- 7 -
D
D
PHANTOM PWR
CN6
AC IN
SW9
CN2.5-2P-90
PGND
D34
1N4002
C185
2200uF/25V
C186
2200uF/25V
C188
D35
1N4002
C
C187
2200uF/25V
2200uF/25V
C189
100uF/100V
B
D37
1N4002
C190
100uF/100V
D36
1N4002
R180
390K
PHANTOM
C196
100uF/100V
2.5-2P-180
SW10
R184
100K
PH PWR-LED
R181
47K
TR1
7815A
TR2
7915A
TR3
TIP122
D38
RLS4148
D39
RLS4148
R183
4R7
C192
47uF/100V
D1
5817
D40
5817
PH PWR
R177
20K
+VCC
-VCC
C193
1000u/25V
C194
1000u/25V
PGND
PH PWR-LED
R178
47K
TR4
3904
C
B
ZD1
C191
100uF/100V
A
1 2 34
1N5261
(47V 0.5W)
PGND
+VCCPH LED
A
- 8 -
CN2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Z DSP
CTRL R L
CTRL R R
(TO AMX 220FXPU1)
ALT3 L
ALT4 R
MAINR
MAIN R 2
MAIN R 3
MAINL
MAIN L 2
MAIN L 3
EFXRTN L
EFXRTN R
FOOTSWITCH 1a
(TO AMX 220FXPU2)
+VCC
+VCC
VCC
VCC
+5V
+5V
GND
GND
DGND
DGND
PGND
PGND
+VCC
+18DB L
+10DB L
+7DB L
+4DB L
+2DB L
0DB L
2DB L
4DB L
7DB L
10DB L
20DB L
30DB L
NetU15 9
PGND
12
2.0 12P
2.0 12P
CN5
CN9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CON17
D
C
CN3
1
2
3
4
5
6
7
8
9
10
11
12
B
1
2
3
4
5
6
7
8
9
10
11
12
A
1110987654321
C7
ALT3 L
ALT4 R
22K
2
3
5
6
2
3
5
6
U6C
4580M
84
C20
33P
R162
18K
U2B
4580M
R9
15K0
C22
33P
R226
18K
U3B
4580M
R10
15K0
ALT3 L
LEFT BUS
RIGHT BUS
ALT4 R
AUX SEND1
AUX SEND2
LEFT BUS
RIGHT BUS
AUX 1
AUX 1
C114
100n
C115
100n
33P
R52
15K0
U2A
4580M
C95
33P
C6
33P
15K0
U3A
4580M
C96
33P
MAIN OUT
(BALANCED)
C41
R7
47u/25V
68R0
1
R327
68R0
7
R51
R8
68R0
1
R357
68R0
7
C116
100n
84
U7C
4580M
C117
100n
C99
47u/25V
C42
47u/25V
C100
47u/25V
U8C
4580M
MAIN L 3
MAIN L 3
R89
22K
LEFT
MAIN L 2
MAIN L 2
R90
22K
MAIN R 3
MAIN R 3
R88
22K
RIGHT
MAIN R 2
MAIN R 2
R91
22K
U10C
4580M
C122
100n
84
4580M
C123
100n
C248
100n
8
C249
100n
U9C
4580M
C250
100n
8
C251
100n
U11C
84
10K CHANGE TO 3K3
EFXRTN L
EFXRTN R
AUX SEND2
SOLO(PFL)
AFL L
AFL R
L METER
R METER
C125
100n
C126
100n
U12C
4580M
84
EFXRTN L
7
EFXRTN R
8
AUX SEND2
SOLO(PFL)
AFL L
AFL R
+VCC
R320
120R 1/4W
D3
RLS4148D4RLS4148
R317
120R 1/4W
R318
36K
R319
36K
C127
100n
U13C
4580M
C128
100n
3
4
2
3
6
5
R315
6
5
8
5
6
C11
R137
6K2
R316
22K
22P
C12
C24
C342
4.7uF/25V
RL1B
RY 5W K
(MUTE)
C344
4.7uF/25V
RL1C
RY 5W K
(MUTE)
C343
4.7uF/25V
U13A
4580M
U13B
4580M
22K
U14B
4580M
LOGIC
R122
10K
PGND
C129
100n
C130
100n
RY 5W K
TR19
3906
DGND DGND
PFL
SOLO
ACTIVE
R23
5K1
SW12D
R326
0R0
PGND
RL1A
R367
10K
10
12
R24
5K1
PGNDPGND
+5V
12
D13
RLS4148
TR18
3904
SW12B
PS 42E85L
4
5
6
**SW12:SOLO MODE
SW12C
PS 42E85L
7
8
9
R146
20K
LEFT METER
R329
10K
PFL IN L
PFL IN R
SW FET
C230
2.2u/50V
C335
100N
GR
Ne C342 1
Ne C344 1
NetC343 1
1
22P
7
22P
7
LOGIC
TR9
HR
R322
510R
CR A
R321
510R
TR10
HR
C239
D5
RLS4148
2
3
U17A
4580M
R323
100K
84
U14C
4580M
R313
15K
NetTR16 C
+5VD
R369
47K
C53
330uF 16V
R368
20K
DGND DGND
C245
22P
R434
10K
2
3
U8A
4580M
C246
22P
R435
10K
6
5
U8B
4580M
C247
22P
R436
10K
6
5
U9B
4580M
SW12A
PS 42E85L
2
R214
220K
R314
15K
U14A
4580M
R110
10K
3
2
R111
10K
C238
100n
( 30) ( 20) (10) ( 7) ( 4) ( 2) (0) (+2)
LD16GRLD18GRLD20GRLD22GRLD24GRLD26GRLD28GRLD30
+VCC
R432
10K
R433
10K
R431
10K
R171
100K
30DB L
20DB L
10DB L
7DB L
4DB L
2DB L
0DB L
+2DB L
+4DB L
+7DB L
+10DB L
+18DB L
+18DB R
+10DB R
+7DB R
+4DB R
+2DB R
0DB R
2DB R
4DB R
7DB R
10DB R
20DB R
30DB R
+VCC
LD17GRLD19GRLD21GRLD23GRLD25GRLD27GRLD29GRLD31
NetU15_9 NetU15 11
C240
1
D6
RLS4148
R325
0R0
R328
C101
U15C
4580M
10K
PGND
C133
100n
84
C134
100n
U16C
4580M
84
C131
100n
C132
100n
47u/25V
6
5
TR17
3904
R370
470R
1
7
7
C135
100n
C136
100n
R366
10K
DGND DGND
C43
47u/25V
C69
47u/25V
C70
47u/25V
LD11
1
3
LD2
1
D1
BAS316
D2
BAS316
D7
RLS4148
U17B
4580M
R324
100K
U36C
4580M
YEL
7
84
R138
20K
R144
20K
R145
20K
RED
11
D8
RLS4148
C102
47u/25V
PS 42E85L
C40
100n
C52
100n
DSP
MUTE(GLOW)
PEAK(FLICKER)
NetU49 1
PFL IN L
PFL IN R
SW FET
(+4) (+7) (+10) (+18)
LD32GRLD34GRLD13
GR
LD33GRLD35GRLD14
+VCC
R429
220R
R430
220R
MAINL
ALT3 L
2TK TO CR L
MAINR
ALT4 R
2TK TO CR R
LD54
RED
FOOTSWITCH 1a
1
2
3
SW7A
PS 22E85L
(MUTE)
DGND
MAINL
MAINR
YEL
YEL
Ne U17 8
Ne U17 4
Ne LD54 2
LD4
RED
LD5
RED
R140
20K
R139
20K
R147
20K
R148
R149
R150
4580M
20K
20K
20K
U17C
NetR400 2
NetR408 2
NetC332 2
NetCN6 16
CTRL ROOM SOURCE
SW FET
SW4A
PS 22E85L
MAIN MIX
SW5A
PS 22E85L
ALT 3
SW6A
PS 22E85L
2TK
SW FET
SW FET
SW4B
PS 22E85L
MAIN MIX
SW5B
PS 22E85L
ALT 4
SW6B
PS 22E85L
2TK
SW FET
VCC
R342
2K
LD36
GR
PWR ON
PH LED
R75
4K7
LD6
RED
PHANTOM
VCC
C103
100n
84
C124
100n
AMX 220FXMN1 USB
AMX 220FXMN1 USB S01
+VCC
PGND
PGND
R172
100K
SW FET
SW FET
SW FET
SW FET
C243
47u/25V
C244
47u/25V
DGND
R25
5K1
R26
5K1
AR1
680R*4
+5V
CN6
HEADER 8X2
TR11
J112
R156
12K
PFL IN L
R174
100K
TR14
J112
TR12
J112
R163
12K
PFL IN R
R173
100K
TR13
J112
TR15
J112
R343
+VCC
47R
47u/25V
PGND
47u/25V
R344
VCC
47R
1 2
3 4
5 6
7 8
12
34
56
78
910
1112
1314
1516
C13
22P
C44
47u/25V
R141
20K
2
1
3
U15A
4580M
PFL IN L
L METER
C25
22P
C71
47u/25V
R151
20K
2
1
3
U16A
4580M
PFL IN R
R METER
C81
C82
MAIN MIX
LEFT
6
4
3
1
R362
R363
VR3B
W50K
VR3A
W50K
R65
22K
R70
22K
C38
22P
R364
5K1
5K1
GN7GND
8
18K
6
7
U36B
4580M
C39
22P
U36A
4580M
C9 22P
R81
47K
U4B
4580M
C8 22P
R80
47K
U5B
4580M
MAINL
R365
18K
MAINR
1
7
C97
47u/25V
7
C98
47u/25V
5
2
3
6
5
6
5
C10 22P
VR4
W50K
R85
57K6
6
7
5
GND4G D
U6B
4580M
5
3
2
C23 22P
VR5
W50K
G D4G D
U10A
4580M
U10B
4580M
56K
4580M
56K
U11B
4580M
5
22P
U11A
C192
C193
22P
C108
100n
C109
100n
22P
C194
R84
57K6
6
7
5
U7B
4580M
R307
56K
R19
1
22K
C65
47u/25V
R309
56K
R20
22K
7
C67
47u/25V
22P
R308
SW2A
PS 22E85L
1
C66
R142
47u/25V
20K
R310
EFX TO AUX1
SW2B
PS 22E85L
7
C68
R143
47u/25V
20K
C110
100n
8
U4C
4580M
C111
100n
3
2
1
C191
2
3
6
5
2
3
6
5
84
U3C
4580M
C1
22P
C35
47u/25V
R3
8K2
ALT 3
ALT 4
AUX 1
AUX 2
6
5
R2
8K2
2
3
C2
22P
R4
2
3
R1
2
3
AUX RTN1 L
18K
U4A
4580M
18K
U5A
4580M
U1B
4580M
U1A
4580M
2
3
2
3
7
C3
22P
C34
47u/25V
1
C37
47u/25V
1
C4
22P
TP10
C36
1
47u/25V
C5
22P
R82
15K
1
U6A
4580M
C18
22P
R83
15K
1
C56
U7A
47u/25V
4580M
R107
10K
R63
22K
LEFT BUS
D
RIGHT BUS
C
B
AUX RTN1 L
R358
120R
MAIN MIX
RIGHT
R359
120R
TP9
12K
TP11
C57
47u/25V
TP12
8
12K
R48
3
GND7GND
1
ALT 3-4
(ALT 3)
R47
(ALT 4)
W50K
VR6A
R360
10K
VR1A
10KD
R361
10K
2
VR2A
10KD
5
R351
22K
2
R352
22K
AUX1 SEND
R49
8K2
AUX2 SEND
R50
8K2
AUX RETURN 1
R105
VR6B
10K
R104
10K
R64
22K
R223
22K
W50K
VR7A
W50K
AUX RTN1 R
AUX RTN2 L
AUX RTN1 R
AUX RTN2 L
AUX RETURN 2
VR7B
R106
10K
+VCC
W50K
R224
22K
C104
100n
84
U1C
4580M
VCC
C105
100n
U2C
4580M
C106
100n
84
C107
100n
AUX RTN2 R
AUX RTN2 R
A
R86
10K
R87
10K
C63
47u/25V
C64
47u/25V
R21
22K
R135
R136
10K
4580M
10K
U5C
84
R109
10K
R108
10K
LEFT BUS
RIGHT BUS
R22
C112
100n
R5
10K0
R100
8K66
C19
33P
R161
18K
R102
10K0
R159
11K0
R6
10K0
R101
8K66
C21
33P
R225
18K
R103
10K0
R160
11K0
ALT 3/4 OUT
SW1A
PS 22E85L
(ALT3/4 TO MIX)
SW1B
PS 22E85L
AUX SEND1
AUX SEND2
22K
R312
R311
22K
C113
100n
AMX-220FXMN1-USB(1/2)
+5V
AR2
680R*4
EN1
SDB161PVB15FS
1
1
2
2
3
4
4
8
CTRL ROOM
R176
120R
R170
100K
R281
47K
CTRL ROOM
R177
120R
R175
100K
R280
47K
PRE CH10
PRE CH11
PRE CH12
PRE CH13
PRE CH14
PRE CH15
PRE CH16
AFL L
AFL R
SOLO(PFL)
LEFT BUS
RIGHT BUS
ALT 3
ALT 4
AUX 1
AUX 2
CR A
LOGIC
LEFT
R178
VR64B
10KD
RIGHT
R179
10K
VR64A
10KD
PRE CH9
AUX RTN1 L
AUX RTN1 R
AUX RTN2 L
AUX RTN2 R
AUX SEND1
AUX SEND2
CTRL R L
CTRL R R
2TK IN L
2TK IN R
NetU17 8
NetU17 4
10K
COM
DGND
PRE CH9
PRE CH10
PRE CH11
PRE CH12
PRE CH13
PRE CH14
PRE CH15
PRE CH16
AFL L
AFL R
SOLO(PFL)
LEFT BUS
RIGHT BUS
+VCC
ALT 3
ALT 4
AUX 1
AUX 2
CR A
LOGIC
1 2
3 4
5 6
7 8
1
2
3
4
R11
5K1
6
5
R27
5K1
6
5
(TO AMX 220FXPU1)
(TO AMX 220FXMN2)
VCC
(TO AMX 220FXPU1)
AUX RTN1 L
AUX RTN1 R
AUX RTN2 L
AUX RTN2 R
AUX SEND1
AUX SEND2
CTRL R L
CTRL R R
2TK IN L
2TK IN R
+VCC
+18DB R
+10DB R
+7DB R
+4DB R
+2DB R
0DB R
2DB R
4DB R
7DB R
10DB R
20DB R
30DB R
NetU15 11
PGND
EN2
SDB161PVB15FS
1
2
4
8
PRESETVARIATION
PGND
C14
22P
R53
18K
7
U15B
4580M
C26
22P
R57
18K
7
U16B
4580M
CN1
2.0 12P
1
2
3
4
5
6
7
8
9
10
11
12
CN4
2.0 16P
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CN7
2.0 12P
1
2
3
4
5
6
7
8
9
10
11
12
CN8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CON17
COM
DGND
JP1
CTRL R L
CTRL R R
EFXRTN L
EFXRTN R
PH LED
NetU17 8
NetU17 4
GND
+VCC
VCC
NetC342 1
NetC344 1
NetTR16 C
+5V
NetCN6 16
NetU49 1
NetC343 1
PGND
DGND
NetLD54 2
NetC332 2
NetR408 2
NetR400 2
1 2 3 4 5 6 7 8 9 10 11 12
1110987654321
12
AMX-220FXMN1-USB(2/2)
2TK TO CR L 2TK TO CR R
C32
R353
D
2TK IN L 2TK IN R
PRE CH9
C
PRE CH10
47u/25V
2TK IN L 2TK IN R
C241
100P
PRE CH9
C45
47u/25V
PRE CH10
C46
47u/25V
5K1
C91
R152
20K
R92
10K
C177
1n(M)
R212
220K
C169
12n(M)
R221
22K
R180
1K8
C161
12n(M)
R93
10K
C178
1n(M)
R213
220K
C170
12n(M)
R222
22K
R181
1K8
C162
12n(M)
VR33A
B50K
VR33B
B50K
VR37A
B50K
VR37B
B50K
6
5
R354
5K1
22P
R153
22K
U12B
4580M
EQ HI (12KHz)
6
5
MID LO(500Hz)
R182
1K8
EQ HI (12KHz)
2
3
MID LO(500Hz)
R183
1K8
47u/25V
7
U24B
4580M
C92
C185
22P
C186
22P
U24A
4580M
200K
200K
R233
R234
R133
7
1
R44
10K
LO(80Hz)
LO(80Hz)
18K
R184
1K8
R241
6K8
VR45A
B50K
R185
1K8
R242
6K8
VR45B
B50K
R261
1M
R262
1M
12K
12K
R157
R158
VR97A
W50K
2TK TO MIX
SW3A
PS 22E85L
C205
3.3n(M)
VR41A
B50K
HI MID(3KHz)
C213
3.3n(M)
R277
47K
C206
3.3n(M)
VR41B
B50K
HI MID(3KHz)
C214
3.3n(M)
R278
47K
C33
R356
22P
5K1
R245
6K8
R333
5K1
R155
22K
C94
2
1
3
47u/25V
U12A
4580M
R355
5K1
R12
5K1
VCC
R13
5K1
+VCC
R295
1K5
TR2
LD1
BR
RED
PEAK
PGND
2
3
6
5
C15 22P
C16
22P
U32B
4580M
U32A
4580M
R97
10K
R134
10K
R55
43K
47u/25V
1
R54
43K
7
LEFT BUS RIGHT BUS
C188
U25A
4580M
C189
U25B
4580M
PS 42E85L
11
22P
1
C47
47u/25V
R95
10K
R96
10K
22P
7
C48
47u/25V
R243
6K8
C221
47n(M)
R244
6K8
C222
47n(M)
R187
1K8
R263
1M
2
3
R188
1K8
R264
1M
6
5
SW14D
C93
47u/25V
C242
100P
LD9
YEL
(SOLO)
10
12
LOGIC
D9
BAS316
(LOGIC 2.0V or 0.5V)
VR49B
10KD
LEVEL
VR49A
10KD
LEVEL
C229
2.2u/50V
R66
4K7
R279
47K
R330
5K6
R331
5K1
R291
2K2
R154
20K
R332
5K6
TR1
LOGIC
BR
R45
18K
C50
R98
10K
C49
47u/25V
SW13C
PS 42E85L
8
SW14C
PS 42E85L
8
PS 22E85L
PS 22E85L
AUX1 PRE/POST
SW8A
2
SW8B
5
PS 22E85L
VR97B
W50K
R99
10K
7
9
7
9
SW3B
R67
2K7
D
VR35A
EQ HI (12KHz)
R217
220K
R192
1K8
C165
12n(M)
R218
220K
R200
1K8
C166
12n(M)
C181
1n(M)
C173
12n(M)
C182
1n(M)
C174
12n(M)
R113
10K
R123
10K
R229
22K
R230
22K
B50K
VR35B
B50K
VR39A
B50K
VR39B
B50K
6
5
MID LO(500Hz)
R195
1K8
EQ HI (12KHz)
2
3
MID LO(500Hz)
R202
1K8
C196
22P
U28B
4580M
C199
22P
U28A
4580M
200K
200K
R237
7
VR47A
LO(80Hz)
R239
1
VR47B
LO(80Hz)
SW13:MUTE/ALT3 4
SW14:SOLO,PFL
SW13A
R14
PS 42E85L
2
SW13B
PS 42E85L
5
SW14A
PS 42E85L
2
SW14B
PS 42E85L
5
AUX POST
VR90
W50K
1
3
4
6
1
3
4
6
AUX PRE
VR89
W50K
LEFT BUS
ALT 3
RIGHT BUS
ALT 4
AFL L
AFL R
SOLO(PFL)
AUX 2
AUX 1
PRE CH13
PRE CH14
PRE CH13
PRE CH14
C74
47u/25V
C83
47u/25V
20K
POST
(PRE)
R16
20K
R299
27K
R300
27K
J1
3
2
R17
1
5K1
R18
5K1
VR69
B5K
R69
2K7
1
3
4
6
R197
1K8
R248
6K8
B50K
R204
1K8
R253
6K8
B50K
R267
1M
R271
1M
12K
12K
R166
R169
C209
3.3n(M)
VR43A
B50K
HI MID(3KHz)
C217
3.3n(M)
R284
47K
C225
47n(M)
C210
3.3n(M)
VR43B
B50K
HI MID(3KHz)
C218
3.3n(M)
R286
47K
C226
47n(M)
1K8
R251
6K8
1K8
R255
6K8
R199
R207
R270
R274
C198
22P
1M
2
1
3
U29A
4580M
C202
C77
47u/25V
22P
1M
6
7
5
U29B
4580M
C86
47u/25V
SW18D
PS 42E85L
11
R116
10K
R127
10K
LD12
YEL
(SOLO)
10
12
LOGIC
D11
BAS316
(LOGIC 2.0V or 0.5V)
VR51B
10KD
LEVEL
2.2u/50V
R77
4K7
R289
47K
VR51A
10KD
LEVEL
C233
R338
5K6
R339
5K1
R293
2K2
R340
5K6
TR5
LOGIC
R258
6K8
BR
R341
5K1
R30
VCC
R36
5K1
+VCC
R298
1K5
TR7
BR
PGND
5K1
LD8
RED
PEAK
2
3
C29 22P
6
5
U34B
4580M
C28
22P
U34A
4580M
R130
10K
R60
43K
1
R59
43K
7
47u/25V
C80
47u/25V
C79
SW17C
PS 42E85L
8
SW18C
PS 42E85L
8
SW10A
PS 22E85L
2
SW10B
PS 22E85L
5
AUX1 PRE/POST
R119
10K
R121
SW17:MUTE/ALT3 4
SW18:SOLO,PFL
SW17A
R31
PS 42E85L
2
SW17B
PS 42E85L
5
SW18A
PS 42E85L
2
SW18B
PS 42E85L
5
AUX POST
VR94
W50K
1
3
4
6
1
3
4
6
AUX PRE
VR93
W50K
LEFT BUS
ALT 3
RIGHT BUS
ALT 4
AFL L
AFL R
SOLO(PFL)
AUX 2
AUX 1
C
POST
(PRE)
20K
R33
20K
R303
27K
R304
27K
J3
R42
5K1
R43
5K1
R72
2K7
VR71
10K
B5K
R74
2K7
7
9
7
9
1
3
4
6
- 9 -
VR34A
EQ HI (12KHz)
B50K
R94
10K
C179
PRE CH11
PRE CH11
47u/25V
B
PRE CH12
PRE CH12
47u/25V
A
1n(M)
R215
220K
C72
C171
12n(M)
R227
22K
R190
VR38A
B50K
1K8
C163
12n(M)
VR34B
B50K
R112
10K
C180
1n(M)
R216
220K
C73
C172
12n(M)
R228
22K
R191
VR38B
B50K
1K8
C164
12n(M)
6
5
MID LO(500Hz)
R193
1K8
EQ HI (12KHz)
2
3
MID LO(500Hz)
R194
1K8
C187
22P
U26B
4580M
C195
22P
U26A
4580M
200K
200K
R235
7
VR46A
LO(80Hz)
R236
1
VR46B
LO(80Hz)
B50K
B50K
R186
1K8
R246
6K8
R196
1K8
R247
6K8
R265
1M
R266
1M
R164
12K
R165
12K
C207
3.3n(M)
VR42A
B50K
HI MID(3KHz)
C215
3.3n(M)
R282
47K
47n(M)
C208
3.3n(M)
VR42B
B50K
HI MID(3KHz)
C216
3.3n(M)
R283
47K
47n(M)
R249
6K8
C223
R250
6K8
C224
R189
1K8
C190
22P
R268
1M
2
1
3
R198
1K8
R269
1M
6
5
U27B
4580M
U27A
4580M
C197
C75
47u/25V
22P
7
C76
47u/25V
+VCC
SW16D
PS 42E85L
11
R114
10K
R115
10K
VCC
LD10
YEL
(SOLO)
10
12
LOGIC
D10
BAS316
(LOGIC 2.0V or 0.5V)
VR50B
10KD
LEVEL
2.2u/50V
R71
4K7
R285
47K
C137
100n
84
U24C
4580M
C138
100n
VR50A
10KD
LEVEL
C231
R334
5K6
4580M
U25C
R335
5K1
R292
2K2
R28
VCC
LOGIC
R29
5K1
R336
5K6
+VCC
R337
5K1
R296
R252
1K5
6K8
TR4
BR
TR3
BR
PGND
C139
100n
C140
100n
U26C
4580M
84
8
C17
5K1
LD3
RED
PEAK
C141
100n
C142
100n
2
3
6
5
C27 22P
U33B
4580M
U27C
4580M
22P
U33A
4580M
84
R117
10K
R56
43K
1
R58
43K
7
47u/25V
R118
10K
C78
47u/25V
PS 42E85L
8
SW16C
PS 42E85L
8
PS 22E85L
PS 22E85L
AUX1 PRE/POST
C143
100n
C144
100n
C51
SW15C
SW9A
2
SW9B
5
4580M
U28C
R120
84
R68
2K7
10K
R73
2K7
7
9
7
9
1
3
4
6
C145
100n
C146
100n
VR70
B5K
POST
(PRE)
U29C
4580M
J2
8
SW15:MUTE/ALT3 4
SW16:SOLO,PFL
R15
20K
R32
20K
R301
27K
R302
27K
R34
5K1
R35
5K1
C147
100n
U30C
4580M
C148
100n
8
SW15A
PS 42E85L
2
SW15B
PS 42E85L
5
SW16A
PS 42E85L
2
SW16B
PS 42E85L
5
AUX POST
VR92
W50K
C149
100n
C150
100n
1
3
4
6
1
3
4
6
AUX PRE
VR91
W50K
84
U31C
4580M
LEFT BUS
ALT 3
RIGHT BUS
ALT 4
AFL L
AFL R
SOLO(PFL)
AUX 2
AUX 1
C151
100n
C152
100n
U32C
4580M
PRE CH15
PRE CH15
PRE CH16
C153
100n
84
C154
100n
U33C
4580M
PRE CH16
84
C155
100n
C156
100n
C84
47u/25V
C85
47u/25V
U34C
4580M
VR36A
EQ HI (12KHz)
B50K
R124
10K
C183
1n(M)
R219
220K
C175
12n(M)
R231
22K
R201
VR40A
B50K
1K8
C167
12n(M)
VR36B
B50K
R125
10K
C184
1n(M)
R220
220K
C176
12n(M)
R232
22K
R210
VR40B
B50K
1K8
C168
12n(M)
C157
100n
8
C158
100n
U35C
4580M
8
MID LO(500Hz)
R203
1K8
EQ HI (12KHz)
MID LO(500Hz)
R211
1K8
C159
100n
C160
100n
C200
22P
R240
200K
6
7
5
U30B
4580M
VR52A
LO(80Hz)
C201
22P
R238
200K
2
1
3
U30A
4580M
VR52B
LO(80Hz)
R205
1K8
R254
6K8
B50K
R206
1K8
R259
6K8
B50K
R272
1M
R273
1M
R168
R167
12K
12K
C211
3.3n(M)
VR48A
B50K
HI MID(3KHz)
C219
3.3n(M)
R287
47K
C227
47n(M)
C212
3.3n(M)
VR48B
B50K
HI MID(3KHz)
C220
3.3n(M)
R288
47K
C228
47n(M)
1K8
R256
6K8
1K8
R260
6K8
R208
R209
R275
R276
C203
22P
1M
2
1
3
U31A
4580M
C204
C87
47u/25V
22P
1M
6
7
5
U31B
4580M
C88
47u/25V
SW20D
PS 42E85L
11
R126
10K
R128
10K
LD15
YEL
(SOLO)
10
12
LOGIC
D12
BAS316
(LOGIC 2.0V or 0.5V)
VR56B
10KD
LEVEL
VR56A
10KD
LEVEL
C232
2.2u/50V
R76
4K7
R290
47K
CR A
R347
5K6
11
11
11
11
R294
2K2
R348
5K1
R349
5K6
TR8
BR
R345
510R
SW19D
PS 42E85L
SW17D
PS 42E85L
SW15D
PS 42E85L
SW13D
PS 42E85L
LOGIC
R257
6K8
R350
5K1
R37
5K1
VCC
10
12
10
12
10
12
10
12
C30
22P
R62
43K
C31 22P
U35B
4580M
CH/15/16
CH13/14
CH11/12
CH9/10
U35A
4580M
R129
10K
1
R61
43K
7
47u/25V
C90
47u/25V
C89
SW19C
PS 42E85L
8
SW20C
PS 42E85L
8
PS 22E85L
2
PS 22E85L
5
AUX1 PRE/POST
R131
10K
SW11A
SW11B
R132
10K
R78
2K7
VR72
B5K
R79
2K7
7
9
7
9
1
3
4
6
2
3
R38
5K1
6
5
+VCC
R297
1K5
TR6
LD7
BR
RED
PEAK
PGND
+VCC
R346
120R 1/4W
TR16
HR
LD37
RED
LD38
RED
LD39
RED
LD40
RED
POST
(PRE)
J4
SW19:MUTE/ALT3 4
SW20:SOLO,PFL
SW19A
R39
PS 42E85L
20K
2
SW19B
R40
PS 42E85L
20K
5
SW20A
R305
PS 42E85L
27K
2
SW20B
R306
PS 42E85L
27K
5
AUX POST
VR96
W50K
R41
5K1
R46
5K1
1
3
4
6
1
3
4
6
AUX PRE
VR95
W50K
LEFT BUS
ALT 3
RIGHT BUS
ALT 4
AFL L
AFL R
SOLO(PFL)
AUX 2
AUX 1
B
A
VCC
1 2 3 4 5 6 7 8 9 10 11 12
1110987654321
12
- 10 -
EQ HI (12K)
R85
3K9
LO (80Hz)
EQ HI (12K)
R86
3K9
LO (80Hz)
EQ HI (12K)
R87
3K9
LO (80Hz)
EQ HI (12K)
R88
3K9
LO (80Hz)
C83
100n
C86
100n
VR17
B50K
VR25
B50K
VR18
B50K
VR26
B50K
VR19
B50K
VR27
B50K
VR20
B50K
VR28
B50K
R33
10K
R34
10K
R35
10K
R36
10K
U4C
4580M
C5
C29
6.8n
22P
R193
1M
6
5
C69
33n
R169
5K6
R281
47K
C6
C30
6.8n
22P
R194
1M
6
5
C70
33n
R170
5K6
R282
47K
C7
C31
6.8n
22P
R195
1M
6
5
C71
33n
R171
5K6
R283
47K
C8
C32
6.8n
22P
R196
1M
6
5
C72
33n
R172
5K6
R284
47K
C87
100n
C90
100n
U5C
4580M
84
84
U9B
4580M
U10B
4580M
U11B
4580M
U12B
4580M
C88
100n
C91
100n
C249
2.2u/50V
R245
4K7
C250
2.2u/50V
R246
4K7
C251
2.2u/50V
R247
4K7
C252
2.2u/50V
R248
4K7
C205
47u/25V
7
R217
6K8
TR2
BR
C206
47u/25V
7
R218
6K8
TR4
BR
C207
47u/25V
7
R219
6K8
TR6
BR
C208
47u/25V
7
R220
6K8
TR8
BR
C89
100n
84
U6C
4580M
C92
100n
R25
10K
U1B
4580M
R181
2K2
LOGIC
(LOGIC 2.0V or 0.5V)
R27
10K
U2B
4580M
R182
2K2
LOGIC
(LOGIC 2.0V or 0.5V)
R29
10K
U3B
4580M
R183
2K2
LOGIC
LOGIC
(LOGIC 2.0V or 0.5V)
R31
10K
U4B
4580M
R184
2K2
LOGIC
LOGIC
(LOGIC 2.0V or 0.5V)
C82
100n
8
C85
100n
C17
6.8n
7
C65
33n
R165
5K6
VCC
LOGIC
C18
6.8n
7
C66
33n
R166
5K6
VCC
LOGIC
C19
6.8n
7
C67
33n
R167
5K6
VCC
C20
6.8n
7
C68
33n
R168
5K6
VCC
8
U3C
4580M
C201
VR9
R1
3K
R2
3K
R3
3K
R4
3K
B50K
VR1B
500KC
(SOLO)
11
PS 42E85L
VR10
B50K
VR2B
500KC
(SOLO)
11
PS 42E85L
VR11
B50K
VR3B
500KC
(SOLO)
11
SW9D
PS 42E85L
VR12
B50K
VR4B
500KC
(SOLO)
11
SW12D
PS 42E85L
U1C
4580M
MID (FREQ 100Hz 8K)
C25
22P
R26
10K
R93
5K1
3
2
U1A
C57
4580M
1.5n
R13
6K2
10
12
SW3D
MID (FREQ 100Hz 8K)
C26
22P
R28
10K
R94
5K1
3
2
U2A
C58
4580M
1.5n
R14
6K2
10
12
SW6D
MID (FREQ 100Hz 8K)
C27
22P
R30
10K
R95
5K1
3
2
U3A
C59
4580M
1.5n
R15
6K2
LD3
YEL
10
12
MID (FREQ 100Hz 8K)
C28
22P
R32
10K
R96
5K1
3
2
U4A
C60
4580M
1.5n
R16
6K2
LD4
YEL
10
12
C81
100n
84
C84
100n
LD1
YEL
LD2
YEL
6
5
1
D1
BAS316
6
5
1
D2
BAS316
6
5
1
D3
BAS316
6
5
1
D4
BAS316
U2C
4580M
47u/25V
RTN CH1
RTN CH1
C1
6.8n
VR1A
500KC
RTN CH2
RTN CH3
RTN CH4
VR2A
500KC
VR3A
500KC
VR4A
500KC
RTN CH2
RTN CH3
RTN CH4
R9
6K2
C2
6.8n
R10
6K2
C3
6.8n
R11
6K2
C4
6.8n
R12
6K2
C202
47u/25V
C203
47u/25V
C204
47u/25V
+VCC
VCC
D
C
B
A
R97
5K1
R59
VR53A
5K6
10KD
LEVEL
+VCC
R317
1K5
LD13
RED
PEAK
TR1
BR
PGND
R98
5K1
R61
5K6
VR54A
10KD
LEVEL
+VCC
R318
1K5
LD14
RED
PEAK
TR3
BR
PGND
R99
5K1
R63
5K6
VR55A
10KD
LEVEL
+VCC
R319
1K5
LD15
RED
PEAK
TR5
BR
PGND
R100
5K1
R65
5K6
VR56A
10KD
LEVEL
+VCC
R320
1K5
LD16
RED
PEAK
TR7
BR
PGND
C93
100n
8
U7C
4580M
C96
100n
2
3
R60
5K1
2
3
R62
5K1
2
3
R64
5K1
2
3
R66
5K1
U8C
4580M
R37
10K
R38
10K
R39
10K
R40
10K
8
C137
22P
R301
68K
1
U9A
4580M
SW2C
PS 42E85L
8
SW3C
PS 42E85L
8
SW1A
PS 22E85L
2
SW1B
PS 22E85L
5
AUX1 PRE/POST
C138
22P
R302
68K
1
U10A
4580M
SW5C
PS 42E85L
8
SW6C
PS 42E85L
8
SW4A
PS 22E85L
2
SW4B
PS 22E85L
5
AUX1 PRE/POST
C139
22P
R303
68K
1
U11A
4580M
SW8C
PS 42E85L
8
SW9C
PS 42E85L
8
SW7A
PS 22E85L
2
SW7B
PS 22E85L
5
AUX1 PRE/POST
C140
22P
R304
68K
1
U12A
4580M
SW11C
PS 42E85L
8
SW12C
PS 42E85L
8
SW10A
PS 22E85L
2
SW10B
PS 22E85L
5
AUX1 PRE/POST
C94
100n
C97
100n
C209
47u/25V
C210
47u/25V
C211
47u/25V
C212
47u/25V
84
U9C
4580M
7
9
7
9
1
3
4
6
7
9
7
9
1
3
4
6
7
9
7
9
1
3
4
6
7
9
7
9
1
3
4
6
C95
100n
C98
100n
R249
2K2
R250
2K2
R251
2K2
R252
2K2
R253
2K2
R254
2K2
R255
2K2
R256
2K2
VR61
B5K
VR62
B5K
VR63
B5K
VR64
B5K
CH1
POST
(PRE)
CH2
POST
(PRE)
POST
(PRE)
POST
(PRE)
PAN
PAN
U10C
4580M
SW2:MUTE/ALT3 4
SW3:SOLO,PFL
PAN
J1_1
SW5:MUTE/ALT3 4
SW6:SOLO,PFL
PAN
J2_1
SW8:MUTE/ALT3 4
SW9:SOLO,PFL
J3_1
SW11:MUTE/ALT3 4
SW12:SOLO,PFL
J4_1
C99
100n
84
C102
100n
R101
R102
R105
R106
R109
R110
R113
R114
R329
R330
R331
R332
R333
R334
R335
R336
EQ HI (12K)
R89
3K9
LO (80Hz)
EQ HI (12K)
R90
3K9
LO (80Hz)
R91
3K9
VCC
R92
3K9
VCC
VR21
B50K
R43
10K
VR29
B50K
VR22
B50K
R46
10K
VR30
B50K
EQ HI (12K)
VR23
B50K
R51
10K
VR31
B50K
LO (80Hz)
EQ HI (12K)
VR24
B50K
R52
10K
VR32
B50K
LO (80Hz)
(TO AMX 220FXPU2)
RTN CH1
RTN CH2
RTN CH3
RTN CH4
RTN CH5
RTN CH6
RTN CH7
RTN CH8
C13
C37
6.8n
22P
R197
1M
6
5
C77
33n
R177
5K6
R285
47K
C14
C38
6.8n
22P
R198
1M
6
5
C78
33n
R178
5K6
R286
47K
C15
C39
6.8n
22P
R199
1M
6
5
C79
33n
R179
5K6
R287
C16
C40
6.8n
22P
R200
1M
6
5
C80
33n
R180
5K6
R288
CN1
2.0 12P
1
2
3
4
5
6
7
8
9
10
11
12
4580M
4580M
47K
47K
U13B
2.2u/50V
U14B
2.2u/50V
U15B
4580M
U16B
4580M
C253
R257
4K7
C254
R258
4K7
C255
2.2u/50V
R259
4K7
C256
2.2u/50V
R260
4K7
C217
47u/25V
7
R221
6K8
TR10
BR
C218
47u/25V
7
R222
6K8
TR12
BR
C219
47u/25V
7
R223
6K8
TR14
BR
C220
47u/25V
7
R224
6K8
TR16
BR
R41
10K
U5B
4580M
LOGIC
(LOGIC 2.0V or 0.5V)
R44
10K
U6B
4580M
LOGIC
(LOGIC 2.0V or 0.5V)
10K
6
5
U7B
4580M
LOGIC
D7
(LOGIC 2.0V or 0.5V)
10K
6
5
U8B
4580M
LOGIC
D8
(LOGIC 2.0V or 0.5V)
C21
6.8n
7
C73
33n
R173
5K6
VCC
R185
2K2
LOGIC
C22
6.8n
7
C74
33n
R174
5K6
VCC
R186
2K2
LOGIC
C23
6.8n
R47
7
C75
33n
R175
5K6
R187
2K2
LOGIC
C24
6.8n
R49
7
C76
33n
R176
5K6
R188
2K2
LOGIC
C213
VR13
VR5A
500KC
VR6A
500KC
VR7A
500KC
VR8A
500KC
RTN CH5
RTN CH6
84
U15C
4580M
C9
6.8n
R17
6K2
C10
6.8n
R18
6K2
RTN CH7
RTN CH8
47u/25V
C214
47u/25V
C11
6.8n
R19
6K2
C12
6.8n
R20
6K2
C107
100n
C110
100n
C215
47u/25V
C216
47u/25V
SW2A
PS 42E85L
84
2
SW2B
PS 42E85L
5
SW3A
PS 42E85L
2
SW3B
PS 42E85L
5
AUX POST
VR74
W50K
SW5A
PS 42E85L
2
SW5B
PS 42E85L
5
SW6A
PS 42E85L
2
SW6B
PS 42E85L
5
AUX POST
VR76
W50K
SW8A
PS 42E85L
2
SW8B
PS 42E85L
5
SW9A
PS 42E85L
2
SW9B
PS 42E85L
5
AUX POST
VR78
W50K
SW11A
PS 42E85L
2
SW11B
PS 42E85L
5
SW12A
PS 42E85L
2
SW12B
PS 42E85L
5
AUX POST
VR80
W50K
C100
100n
C103
100n
1
3
4
6
1
3
4
6
AUX PRE
VR73
W50K
1
3
4
6
1
3
4
6
AUX PRE
VR75
W50K
1
3
4
6
1
3
4
6
AUX PRE
VR77
W50K
1
3
4
6
1
3
4
6
AUX PRE
VR79
W50K
U12C
4580M
LEFT BUS
RIGHT BUS
SOLO(PFL)
LEFT BUS
RIGHT BUS
SOLO(PFL)
LEFT BUS
RIGHT BUS
SOLO(PFL)
LEFT BUS
RIGHT BUS
SOLO(PFL)
8
AUX 2
AUX 1
AUX 2
AUX 1
AUX 2
AUX 1
AUX 2
AUX 1
ALT 3
ALT 4
AFL L
AFL R
ALT 3
ALT 4
AFL L
AFL R
ALT 3
ALT 4
AFL L
AFL R
ALT 3
ALT 4
AFL L
AFL R
C101
100n
C104
100n
U13C
4580M
RTN CH5
RTN CH6
RTN CH7
RTN CH8
C105
100n
8
C108
100n
U14C
4580M
C106
100n
84
C109
100n
20K
20K
27K
27K
R103
5K1
R104
5K1
20K
20K
27K
27K
R107
5K1
R108
5K1
20K
20K
27K
27K
R111
5K1
R112
5K1
20K
20K
27K
27K
R115
5K1
R116
5K1
U11C
4580M
R5
3K
R6
3K
R7
3K
R8
3K
U16C
4580M
8
B50K
3
2
C61
1.5n
VR5B
500KC
(SOLO)
11
SW34D
PS 42E85L
VR14
B50K
3
2
C62
1.5n
VR6B
500KC
(SOLO)
11
SW37D
PS 42E85L
VR15
B50K
VR7B
500KC
11
PS 42E85L
VR16
B50K
VR8B
500KC
(SOLO)
11
PS 42E85L
C111
100n
C112
100n
3
2
C63
1.5n
(SOLO)
SW40D
3
2
C64
1.5n
MID (FREQ 100Hz 8K)
C33
22P
R42
10K
6
5
R117
5K1
1
U5A
4580M
R21
6K2
LD5
YEL
10
12
D5
BAS316
MID (FREQ 100Hz 8K)
C34
22P
R45
10K
6
5
R118
5K1
1
U6A
4580M
R22
6K2
LD6
YEL
10
12
D6
BAS316
M D (FREQ 100Hz 8K)
C35
22P
R48
10K
R119
5K1
1
U7A
4580M
R23
6K2
LD7
YEL
10
12
BAS316
M D (FREQ 100Hz 8K)
C36
22P
R50
10K
R120
5K1
1
U8A
4580M
R24
6K2
LD8
YEL
10
12
SW43D
BAS316
TR9
BR
PGND
TR11
BR
PGND
TR13
BR
TR15
BR
AFL L
AFL R
SOLO(PFL)
LEFT BUS
RIGHT BUS
ALT 3
ALT 4
AUX 1
AUX 2
CR A
LOGIC
+VCC
+VCC
VR57A
10KD
LEVEL
1K5
VR58A
10KD
LEVEL
1K5
VR59A
+VCC
PGND
VR60A
+VCC
PGND
R321
R322
10KD
LEVEL
10KD
LEVEL
R67
5K6
LD17
RED
PEAK
R69
5K6
LD18
RED
PEAK
R323
1K5
LD19
RED
PEAK
R324
1K5
LD20
RED
PEAK
AFL L
AFL R
SOLO(PFL)
LEFT BUS
RIGHT BUS
+VCC
ALT 3
ALT 4
VCC
AUX 1
AUX 2
CR A
LOGIC
R121
5K1
R122
5K1
R71
5K6
R73
5K6
R123
5K1
R124
5K1
C141
22P
2
3
U13A
4580M
R68
5K1
SW33C
PS 42E85L
8
SW34C
R53
PS 42E85L
10K
8
C142
22P
2
3
U14A
4580M
R70
5K1
SW36C
PS 42E85L
8
SW37C
R54
PS 42E85L
10K
8
C143
22P
2
3
4580M
R72
5K1
R55
10K
C144
22P
2
3
4580M
R74
5K1
R56
10K
CN2
2.0 16P
(TO AMX 220FXMN1)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
R305
C221
68K
47u/25V
1
7
9
7
9
SW32A
PS 22E85L
2
SW32B
PS 22E85L
5
AUX1 PRE/POST
R306
C222
68K
47u/25V
1
7
9
7
9
SW35A
PS 22E85L
2
SW35B
PS 22E85L
5
AUX1 PRE/POST
R307
C223
68K
47u/25V
1
U15A
SW39C
PS 42E85L
8
SW40C
PS 42E85L
8
SW38A
PS 22E85L
2
SW38B
PS 22E85L
5
AUX1 PRE/POST
R308
C224
68K
47u/25V
1
U16A
SW42C
PS 42E85L
8
SW43C
PS 42E85L
8
SW41A
PS 22E85L
2
SW41B
PS 22E85L
5
AUX1 PRE/POST
1
3
4
6
1
3
4
6
7
9
7
9
1
3
4
6
7
9
7
9
1
3
4
6
R261
2K2
R262
2K2
R263
2K2
R264
2K2
R265
2K2
R266
2K2
R267
2K2
R268
2K2
VR65
B5K
VR66
B5K
POST
(PRE)
POST
(PRE)
VR67
B5K
VR68
B5K
+VCC
VCC
PH LED
GND
+5V
PGND
PAN
PAN
POST
(PRE)
POST
(PRE)
J5_1
J6_1
PAN
J7_1
PAN
J8_1
SW33:MUTE/ALT3 4
SW34:SOLO,PFL
R125
20K
R126
20K
R337
27K
R338
27K
R127
5K1
R128
5K1
SW36:MUTE/ALT3 4
SW37:SOLO,PFL
R129
20K
R130
20K
R339
27K
R340
27K
R131
5K1
R132
5K1
SW39:MUTE/ALT3 4
SW40:SOLO,PFL
R133
20K
R134
20K
R341
27K
R342
27K
R135
5K1
R136
5K1
SW42:MUTE/ALT3 4
SW43:SOLO,PFL
R137
20K
R138
20K
R343
27K
R344
27K
R139
5K1
R140
5K1
CN3
(TO AMX 220FXPU2)
+VCC
VCC
PH LED
GND
+5V
PGND
SW33A
PS 42E85L
2
SW33B
PS 42E85L
5
SW34A
PS 42E85L
2
SW34B
PS 42E85L
5
AUX POST
VR82
W50K
SW36A
PS 42E85L
2
SW36B
PS 42E85L
5
SW37A
PS 42E85L
2
SW37B
PS 42E85L
5
AUX POST
VR84
W50K
SW39A
PS 42E85L
2
SW39B
PS 42E85L
5
SW40A
PS 42E85L
2
SW40B
PS 42E85L
5
AUX POST
W50K
SW42A
PS 42E85L
2
SW42B
PS 42E85L
5
SW43A
PS 42E85L
2
SW43B
PS 42E85L
5
AUX POST
W50K
1
2
3
4
5
6
7
8
2 0 8P
VR86
VR88
1
3
4
6
1
3
4
6
AUX PRE
VR81
W50K
1
3
4
6
1
3
4
6
AUX PRE
VR83
W50K
AUX PRE
VR85
W50K
AUX PRE
VR87
W50K
RIGHT BUS
SOLO(PFL)
RIGHT BUS
SOLO(PFL)
1
3
4
6
1
3
4
6
1
3
4
6
1
3
4
6
LEFT BUS
ALT 3
ALT 4
AFL L
AFL R
AUX 2
AUX 1
LEFT BUS
ALT 3
ALT 4
AFL L
AFL R
AUX 2
AUX 1
LEFT BUS
ALT 3
RIGHT BUS
ALT 4
AFL L
AFL R
SOLO(PFL)
AUX 2
AUX 1
LEFT BUS
ALT 3
RIGHT BUS
ALT 4
AFL L
AFL R
SOLO(PFL)
AUX 2
AUX 1
CH1
CH2
LEFT BUS
RIGHT BUS
AMX-220FXMN2-USB
+VCC
R58
510R
CR A
CR A
SW42D
10
11
12
PS 42E85L
SW39D
10
11
12
PS 42E85L
SW36D
10
11
12
PS 42E85L
SW33D
10
11
12
PS 42E85L
SW11D
10
11
12
PS 42E85L
SW8D
10
11
12
PS 42E85L
SW5D
10
11
12
PS 42E85L
SW2D
10
11
12
PS 42E85L
VCC
CN4
CH1
1
CH2
2
3
LEFT BUS
4
RIGHT BUS
5
2 0 5P
R57
120R 1/4W
TR17
HR
LD9
RED
LD10
RED
LD11
RED
LD12
RED
(MUTE/ALT3 4)
LD21
RED
LD22
RED
LD23
RED
LD24
RED
(MUTE/ALT3 4)
D
C
CH8
CH7
CH6
CH5
CH4
CH3
B
CH2
CH1
A
1 2 3 4 5 6 7 8 9 10 11 12
7654321
8
DSP-PRE
C 345
C 329
1
U 44A
4580M
R 422
3K 3
22P
C 331
22P
R 397
10K
2
3
D
R 420
100R
(MUTE)
1.5nF 2 5%
10K
7
U 44B
4580M
C 347
1 5nF 2 5%
R 398
R 399
10K
R 406
10K
D
R 400
10K
6
5
C 348
33P
10
U 48B
74H C109
Q
Q9K
S1R
14
J
12
CLK
13
15
DGND
U 49D
74HC14
8 9
U 49F
74HC14
12 13
DGND
- 11 -
C 346
C 334
100N
84
R 402
10K
R 418
1K
R 403
10K
7
R 404
10K
LM 393
R 417
1M
7
U 47C
U 45B
4580M
84
R 405
10K
U 47B
LM 393
2
3
R 425
2M 2
R 423
3K 3
R 421
100R
1
C
CN1
GND
1
+VC C
2
VCC
3
NetC 342 1
4
NetC 344 1
5
NetT R16 C
6
+5VD
7
NetC N6 16
8
NetU 49 1
9
NetC 343 1
10
PGN D
11
DGND
12
NetL D54 2
13
NetC 332 2
14
NetR 408 2
15
NetR 400 2
16
CN1-2.0-16P
B
+VC C
A
MUTE GLOW )
PEAK(FLICKER)
84
U 44C
4580M
VCC
(MUTE)
C 336
100N
C 337
100N
R 401
10K
ZD1
2.4V
R 416
4K 7
1
U 45C
4580M
6
5
84
U 45A
4580M
U 47A
LM 393
C 330
C 338
100N
C 339
100N
ZD2
2.4V
22P
R 424
2K 2
U 46B
4580M
2
3
1 5nF 2 5%
7
+VC C
3
2
U 46C
4580M
R 408
10K
6
5
C 349
33P
C 332
22P
R 407
10K
1
U 46A
4580M
R 419
D 10A
7K 5
R B400D
5
6
R 426
R 431
820K
U 48C
74H C109
168
DGND
D16
D A202K
C 340
100N
147
U 49G
74HC14
220R
81
U 43B
N E555
100N
C 341
U 49B
3 4
74HC14
TR16
3904
+5VD
C 351
10uF
U 49C
5 6
74HC14
R1
0R
R 409
10K
DGNDDGND
C 333
100N
U 43A
N E555
OUT3RS
CTR5DS
DGND
DGND
+5VD
R 415
47K
4
2
TG
6
TH
7
C 350
10uF
DGND
DGND
R 411
10K
TR17
3904
R 410
10K
R 412
10K
6
U 48A
74H C109
Q
Q7K
S5R
CLK
1
R 413
+5VD
10K
DGND
D7
B AS316
C 352
1uF
2
J
4
3
DGND
U 49A
74HC14
R 414
10K
12
DGND
+5VD
C 353
1uF
D15
B AS316
C
B
A
1 2 3 4 5 6 78
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