LTO AMX 220FX-USB User 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 -

15dB @ 100Hz~8KHz
15dB @ 3KHz
15dB @ 500Hz
15dB @ 80Hz
15dB @ 12KHz
2. TECHNICAL SPECIFICATION
Mono input channels Microphone input Electronically balanced ,discrete input configuration
Frequency response 10Hz to 55KHz, 3dB
Distortion (THD&N)
Gain range
SNR (Signal Noise Rated)
Line input
Frequency response
Distortion (THD&N)
Sensitivity range
0.005% at +4dBu, 1KHz
0dB to 44dB(MIC)
115dB
Electronically balanced
10Hz to 55KHz, 3dB
0.005% at +4dBu, 1KHz
+15dBu to -45dBu
Stereo input channels
10Hz to 55KHz, 3dB
Line input Balanced
Frequency response
Distortion (THD&N) 0.005% at +4dBu, 1KHz
Impedance Microphone input 1.4K ohm
Channel insert return 2.5K ohm
All other inputs 10Kohm or greater
Tape out 1K Ohm
All other output 120 ohm
Equalization Hi shelving
Mid sweep
HI-MID
MID-Low
Low shelving
DSP SECTION A/D and D/A converters
DSP resolution
Type of effects
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
Presets 256
Controls 16-position PRESET Selector
16-position VARIATION selector
PEAK LED
MUTE SWITCH with LED indicator
Main Mix Section Noise (Bus noise ) Fader 0 dB, channels muted:-100.0dBr (ref.:+4dBu)
Fader 0 dB,all input channels assigned and set to
UNITY gain:-90dBr(ref.:+4dBu)
Max output +22dBu balanced XLR,
+22dBu unbalanced,1/4" jacks
AUX Return gain range OFF to +15dB
AUX Sends max out +22dBu
Power supply
(AC/AC Adaptor)
Main voltage USA/ Canada 100-120V~,60Hz
Europe 210-230V~,50Hz
U.K/Australia 240V~,50Hz
Power Consumption 36watts
Physical
Net weight
Dimension (W D H) 420mm 440mm 43mm(16.54" 17.3 1.69")
4.86Kg
USB SECTION ADC / DAC 16 Bit 32~48KHz
Fully Compliant with USB 1.1 specification
No software drivers are need with windows XP or MAC OSX
- 2 -

1 2 3 4 5 6 7 8 9 10 11 12
A
B
C
D
12
1110987654321
D
C
B
A
MONO INPUT CHANNELS ( 1-8)
2
1
3
M C IN
+48V
4 BAND EQ
12K100Hz 8kHz80
HI PASS
2
1
3
LO CUT
PEAK
LEFT-BUS RIGHT-BUS AUX-1 AUX-2
RIGHT BUS
LEFT BUS
AUX 1
AUX 2
STEREO INPUT CHANNELS (9-16)
LEFT BUS
RIGHT BUS
AUX 1
AUX 2
LEFT BUS
RIGHT BUS
2
1
3
EFX TO AUX 1
2
1
3
RIGHT BUS
LEFT BUS
AUX 1
AUX 1
AUX 1
AUX SEND
AUX 2
MAIN OUT
LEFT BUS
RIGHT BUS
2TK TO MIX
RIGHT BUS
LEFT BUS
TAPE IN
RIGHT
2TK
2TK
PHONES OUTPUT
LEFT METER
RIGHT METER
75Hz
+/ 15db
4 BAND EQ
12K50080
+/ 15db
MAIN MIX
AUX SEND1
T
R
S
AUX SEND2
T
R
S
MAIN MIX LEFT
T
R
S
MAIN MIX RIGHT
T
R
S
CONTROL ROOM OUTPUT
LEFT
T
R
S
RIGHT
T
R
S
PHONES
T
R
S
& PHONES
CONTROL ROOM
LEFT
TAPE OUT
2
1
3
2
1
3
LEVEL
AUX2 / DSP
STEREO AUX RETURN 1 AUX1 RETURN
+
PAN
PHANTOM
LINE IN
GAIN
+
POWER
+
+
+
LO (FREQ) HI
AUX1
AUX2
LEVEL
POST
PRE
BALANCE
AUX1
AUX2
FADER
PEAK
3c
5e
1a
4d
2b
LEFT(MONO)
3c
5e
1a
4d
2b
R GHT
T
R
S
RN
TN
T
R
S
RN
TN
+
+
MIC GAIN 0~60dB
LINE IN TRIM +15dB~ 45dB
AFL-L AFL-R SOLO(PFL)
SOLO
ON
()
AFL L
AFL R
SOLO(PFL)
SOLO
ON
()
AFL L
AFL R
SOLO(PFL)
EFX SEND
LEFT-BUS RIGHT-BUS AUX-1 AUX-2 SOLO(PFL) EFX SEND
AFL L
AFL R
SOLO(PFL)
PFL LED
LOGIC
SOLO CTRL
SOLO ACTIVE
(LEVEL SET)
RETURN
SOLO MODE
PFL
()
AFL
()
AUX2 / DSP
3c
5e
1a
4d
2b
INSERT
T
R
S
RN
TN
ALT-3(L) ALT-4(R)
ALT-3(L) ALT-4(R)
ALT 4
ALT 3
ALT 4
ALT 3
AUX1
LEVEL
AUX2
LEVEL
ALT 3(L)
ALT 4(R)
ALT3 4
LEVEL
ALT 3-4 OUT
ALT 3(L)
T
R
S
ALT 4(R)
T
R
S
ALT 3 4 TO MIX
RIGHT BUS
LEFT BUS
ALT 3 4
MAIN MIX
CONTROL ROOM SOURCE
MAIN/ALT
MAIN/ALT
1 2
1 2
POST
PRE
1 2
1 2
POST
PRE
POST
PRE
2TK
RIGHT
LEFT
M D
LO M H HIL M
3K
4 BAND EQ
12K50080
+/ 15db
3K
AFL-L AFL-R
3c
5e
1a
4d
2b
X8
JY 6351G 02 250
3c
5e
1a
4d
2b
X9
JY 6351G 02 250
3c
5e
1a
4d
2b
X10
JY 6351G 02 250
3c
5e
1a
4d
2b
X11
JY 6351G 02 250
DSP BOARD
DEF SENDDEF SEND
LOGIC
PRESETS
VARIATIONS
MUTE
DSP FOOTSWITCH
FX OUT L
FX OUT R
AMX-220FX USB
USB RECORD
USB PLAYBACK
MONO CHANNEL 1
MONO CHANNEL 2
STEREO CHANNELS 15
STEREO CHANNELS 16
2
1
3
2
1
3
2
1
3
2
1
3
MUTE/ALT3 4 LED
MUTE/ALT3 4 LED
T
R
S
RN
TN
T
R
S
RN
TN
T
R
S
RN
TN
T
R
S
RN
TN
2TK LEVEL
STEREO AUX RETURN 2
(LEVEL +4dBu/ 10dBv)
+4dB/MIC
Vin L
ADC
Vin L
Vout L
DAC
Vout L
USB
PROTOCOL
CONTROLLER
USB MODULE
USB PORT
TO PC
3. BLOCK DIAGRAM
-
3
-

1 2 3 4 5 6 78
A
B
C
D
8
7654321
D
C
B
A
+VCC
VCC
84
U1C
4580M
C33
100N
C37
100N
3c
5e
1a
4d
2b
X4
JY-6351G-02-250
T
R
S
RN
TN
LINE IN 9
3c
5e
1a
4d
2b
X5
JY-6351G-02-250
T
R
S
RN
TN
LEFT
RIGHT
3
2
U1A
4580M
R2
2K20 C1
22P
C43
47u/25V
R4
2K20
C2
22P
R1
10K
C17
100P
R3
10K
C18
100P
5
6
7
U1B
4580M
R6
2K20 C3
22P
C44
47u/25V
R8
2K20
C4
22P
R5
10K
C19
100P
R7
10K
C20
100P
R71
20K
R72
20K
3c
5e
1a
4d
2b
X6
JY-6351G-02-250
T
R
S
RN
TN
3c
5e
1a
4d
2b
X7
JY-6351G-02-250
T
R
S
RN
TN
3
2
U2A
4580M
R10
2K20 C5
22P
C45
47u/25V
R12
2K20
C6
22P
R9
10K
C21
100P
R11
10K
C22
100P
5
6
7
U2B
4580M
R14
2K20 C7
22P
C46
47u/25V
R16
2K20
C8
22P
R13
10K
C23
100P
R15
10K
C24
100P
R73
20K
R74
20K
TP7
TP8
TP9
TP10
3c
5e
1a
4d
2b
X18
JY-6351G-02-250
T
R
S
RN
TN
3c
5e
1a
4d
2b
X19
JY-6351G-02-250
T
R
S
RN
TN
3
2
1
U4A
4580M
R28
7K15
C13
22P
C51
47u/25V
R30
2K20
C14
22P
R27
10K
C29
100P
R29
10K
C30
100P
5
6
7
U4B
4580M
R32
7K15
C15
22P
C52
47u/25V
R34
2K20
C16
22P
R31
10K
C31
100P
R33
10K
C32
100P
R77
R78
TP11
TP12
LINE IN 10
LINE IN 11
LEFT(MONO)
RIGHT
LINE IN 12
LINE IN 15
LEFT(MONO)
RIGHT
LINE IN 16
3c
5e
1a
4d
2b
X8
JY-6351G-02-250
STEREO AUX
LEFT 1
3c
5e
1a
4d
2b
X9
JY-6351G-02-250
RIGHT 1
RETURN2
STEREO AUX
RETURN1
3c
5e
1a
4d
2b
X10
JY-6351G-02-250
3c
5e
1a
4d
2b
X11
JY-6351G-02-250
RIGHT 2
LEFT 2
(MONO / MASTER)
AUX-RTN1-L
AUX-RTN1-R
AUX-RTN2-L
AUX-RTN2-R
3c
5e
1a
4d
2b
X12
JY-6351G-02-250
AUX SEND1
R43
120R
R44
120R
3c
5e
1a
4d
2b
X13
JY-6351G-02-250
AUX SEND2
R45
120R
R46
120R
T
R
S
RN
TN
T
R
S
RN
TN
AUX-SEND1
AUX-SEND2
3c
5e
1a
4d
2b
X14
JY-6351G-02-250
R48
120R
R47
120R CTRL ROOM OUT
3c
5e
1a
4d
2b
X15
JY-6351G-02-250
R50
120R
R49
120R
LEFT
RIGHT
CTRL-R-L
CTRL-R-R
R81
1K
R82
1K
L(WHITE)
R(RED)
TAPE IN TAPE OUT
1 4
2 5
3 6
X3
SCP6873NS3232
2TK-IN-L
2TK-IN-R
MAINR
MAINL
3
2
1
U6A
BA15218N
5
6
7
U6B
BA15218N
C64
22P
R24
10K
R53
120R
3c
5e
1a
4d
2b
X20
JY-6351G-02-250
R54
120R
PHONES
R52
120R
R51
120R
3
2
1
U5A
BA15218N
5
6
7
U5B
BA15218N
R23
10K
C63
22P
CTRL-R-L
CTRL-R-R
R41
2K20
SW4A
PS-22E85L
R42
2K20
SW4B
PS-22E85L
R37
5K1
SW2A
PS-22E85L
R38
5K1
SW2B
PS-22E85L
R35
5K1
SW1A
PS-22E85L
R36
5K1
SW1B
PS-22E85L
84
U3C
4580M
84
U4C
4580M
84
U2C
4580M
(LEVEL +4dBu/-10dBv)
(LEVEL +4dBu/-10dBv)
(LEVEL +4dBu/-10dBv)
(LEVEL +4dBu/-10dBv)
(LEVEL +4dBu/-10dBv)
(LEVEL +4dBu/-10dBv)
PRE-CH9
PRE-CH10
PRE-CH11
PRE-CH12
PRE-CH15
PRE-CH16
C34
100N
C38
100N
C35
100N
C39
100N
C36
100N
C40
100N
84
U5C
BA15218N
84
U6C
BA15218N
R79
47R
R80
47R
C47
47u/25V
C48
47u/25V
C41
100N
C42
100N
+VCC
VCC
1
2
3
4
5
6
7
8
9
10
11
12
CN2
2.0-12P
(TO AMX-220FXMN1)
1
2
3
4
5
6
7
8
9
10
11
12
CN1
2.0-12P
(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
3c
5e
1a
4d
2b
X23
JY-6351G-02-250
T
R
S
RN
TN MAIN R (UNBAL)
3c
5e
1a
4d
2b
X24
JY-6351G-02-250
T
R
S
RN
TN MAIN L (UNBAL)
R64
120R
R63
120R
R66
120R
R65
120R
3c
5e
1a
4d
2b
X21
JY-6351G-02-250
T
R
S
RN
TN
ALT-3 (LEFT)
3c
5e
1a
4d
2b
X22
JY-6351G-02-250
T
R
S
RN
TN
ALT-4 (RIGHT)
R56
120R
R55
120R
R58
120R
R57
120R
(BALANCED)
2
1
3
X1
JY-5030-030G
2
1
3
X2
JY-5030-030G
MAIN OUT
RIGHT
LEFT
1
2
3
SW5A
PS-42E85L
4
5
6
P
SW5B
PS-42E85L
7
8
9
P
SW5C
PS-42E85L
10
11
12
P
SW5D
PS-42E85L
R59
120R
R60
120R
R83
5K1
R61
120R
R62
120R
R84
5K1
R67
120R
R68
120R
R85
5K1
R69
120R
R70
120R
R86 5K1
PRE CH16
PRE CH15
PRE CH14
PRE CH13
PRE-CH16
PRE-CH15
(TO AMX-220FXMN1)
1
2
3
4
5
6
7
8
9
10
11
12
CN3
2.0-12P
PRE-CH14
PRE-CH13
PRE-CH12
PRE-CH11
PRE-CH10
PRE-CH9
PRE CH12
PRE CH11
PRE CH10
PRE CH9
3c
5e
1a
4d
2b
X16
JY-6351G-02-250
T
R
S
RN
TN
3c
5e
1a
4d
2b
X17
JY-6351G-02-250
T
R
S
RN
TN
3
2
1
U3A
4580M
R25
7K15
C11
22P
C49
47u/25V
R19
2K20
C9
22P
R17
10K
C25
100P
R18
10K
C26
100P
5
6
7
U3B
4580M
R26
7K15
C12
22P
C50
47u/25V
R22
2K20
C10
22P
R20
10K
C27
100P
R21
10K
C28
100P
R75
20K
R76
20K
TP5
TP6
LINE IN 13
LEFT(MONO)
RIGHT
LINE IN 14
R39
2K20
SW3A
PS-22E85L
R40
2K20
SW3B
PS-22E85L
(LEVEL +4dBu/-10dBv)
(LEVEL +4dBu/-10dBv)
PRE-CH13
PRE-CH14
EFXRTN L
EFXRTN R
R93 R94
EFXRTN R
EFXRTN L
3c
5e
1a
4d
2b
X25
JY-6351G-02-250
FOOTSWITCH
AMX-220FXPU1-USB(1/2)
ALT3-L
ALT4-R
MAIN-R-2
MAIN-R-3
MAIN-L-2
MAIN-L-3
EFXRTN-L
EFXRTN-R
FOOTSWITCH-1a
FOOTSWITCH-1a
ALT3-L
ALT4-R
MAIN-R-2
MAIN-R-3
MAIN-L-2
MAIN-L-3
C235
100P
C68
47u/25V
TP25
TP24
TP23
TP26
C234
100P
C67
47u/25V
C236
100P
C71
47u/25V
C237
100P
C72
47u/25V
C65
47u/25V
C66
47u/25V
C70
47u/25V
C69
47u/25V
R100
10K
R102
10K
R103
10K
R101
10K
3
2
1
U8A
4580M
5
6
7
U8B
4580M
3
2
1
U9A
4580M
5
6
7
U9B
4580M
C77
22P
C79
22P
C78
22P
C80
22P
R159
14K
R162
14K
R160
14K
R161
14K
84
U8C
4580M
84
U9C
4580M
C73
100N
C74
100N
C75
100N
C76
100N
AMX220FXPU1 USB
AMX220FXPU1 USB S01
CH15
CH16
2
1
3
SW14A
PS-22E85L
5
4
6
SW14B
PS-22E85L
R125
20K0
GND
R126
20K0
GND
C106
47uF/25V
C105
47uF/25V
R131
680R
R135
2K20
R136
7K15
R132
680R
R138
2K20
R137
7K15
R133
680R
R139
2K20
R140
7K15
R134
680R
R142
2K20
R141
7K15
MAINL
MAINR
MAINR
MAINL
+VCC
VCC
GND
PGND
(TO AMX-220FXPU2)
+VCC
-VCC
GND
PGND
PH LED PH LED
1
2
3
4
5
6
7
8
CN4
2 0 8P
+5V
+5V
TR4
7805
PGND
+5V
C195
1000uF/16V
PGND
+VCC
R97
5K1
R87
680R
R91
2K20
R98
5K1
R88
680R
R92
2K20
R151
5K1
R89
680R
R95
2K20
R152
5K1
R90
680R
R96
2K20
4. SCHEMATIC DIAGRAM
- 4 -

1 2 34
A
B
C
D
4
321
D
C
B
A
1
2
3
4
5
6
7
8
9
10
11
12
CN9
USB MIXER
GND
+5V
USB GND
D-
D+
VINL
VINR
VOUTL
VOUTR
1
2
3
4
CN7
USB B TYPE
USB GND
D-
D+
1
2
3
4
5
CN8
CON5
R104
10K0
R109
10K0
C86
22P
3
2
1
U10A
4580M
R113
10K0
C87
22P
5
6
7
U10B
4580M
R106
10K0
3
2
1
U13A
4580M
R116
56K
C90
22P R107
10K0
5
6
7
U13B
4580M
R117
56K
C91
22P R108
10K0
C101
47uF/25V
C103
47uF/25V
CH15
CH16
LEFT-BUS
RIGHT-BUS
MAINL
MAINR
CH1
CH2
R123
3K3
R124
3K3
VINL
VINR
CH1
CH2
LEFT-BUS
RIGHT-BUS
VOUTL
VOUTR
C93
100n
C97
100n
84
U10C
4580M
C96
100n
C100
100n
84
U13C
4580M
+VCC
-VCC
CH1
CH2
LEFT-BUS
RIGHT-BUS
2
1
3SW11A
SW 2WAY
5
4
6SW11B
SW 2WAY
USB RECORD
VINR
VINL
VINL
VINR
USB PLAYBACK
VOUTL
VOUTR
2
1
3SW12A
SW 2WAY
5
4
6SW12B
SW 2WAY
VOUTL
VOUTR
USB MIXER AMX-220FXPU1-USB(2/2)
NEW
MAINR
MAINL
GND
+VCC
-VCC
LEFT-BUS
RIGHT-BUS
L1
0R
R99
0R
- 5 -

1 2 3 4 5 6 7 8 9 10 11 12
A
B
C
D
12
1110987654321
D
C
B
A
5
6
7
U9B
4580M
R145
62K
R169
20K
C169
47u/25V
C137
0 22u/50V
C142
0 22u/50V
C141
0 22u/50V
R161
6K8
1
2
3
SW1A
PS 22E85L
4
5
6
P
SW1B
PS 22E85L
LO CUT 3c
5e
1a
4d
2b
X13
JY 6351G 02 250
T
R
S
RN
TN
INSERT1
5
6
7
U10B
4580M
R146
62K
R138
1K3
R170
20K
C170
47u/25V
C138
0 22u/50V
C144
0 22u 50V
C143
0 22u/50V
R162
6K8
1
2
3
SW2A
PS 22E85L
4
5
6
P
SW2B
PS 22E85L
LO CUT 3c
5e
1a
4d
2b
X14
JY 6351G 02 250
T
R
S
RN
TN
INSERT2
5
6
7
U11B
4580M
R147
62K
R139
1K3
R171
20K
C171
47u/25V
C139
0 22u 50V
C146
0 22u/50V
C145
0 22u/50V
R163
6K8
1
2
3
SW3A
PS 22E85L
4
5
6
P
SW3B
PS 22E85L
LO CUT 3c
5e
1a
4d
2b
X15
JY 6351G 02 250
T
R
S
RN
TN
INSERT3
5
6
7
U12B
4580M
R148
62K
R140
1K3
R172
20K
C172
47u/25V
C140
0 22u 50V
C148
0 22u/50V
C147
0 22u/50V
R164
6K8
1
2
3
SW4A
PS 22E85L
4
5
6
P
SW4B
PS 22E85L
LO CUT 3c
5e
1a
4d
2b
X16
JY 6351G 02 250
T
R
S
RN
TN
INSERT4
U1~ U16=
MIC GAIN 10~ 60dB
LINE IN GAIN +10~ 40dB
C174
47u/25V
C173
47u/25V
C175
47u/25V
C176
47u/25V
VR1
O10K
C1
470P C97
22u/35V
R33
11K0
LINE IN1
MIC 1 C113
47u/50V R49
3K60
R65
6K81 1/4W
PH PWR
C9
470P
R66
6K81 1/4W
C114
47u/50V
C25
47P
R34
11K0 R50
3K60
C98
22u/35V
R19
51K1
R17
51K1
C2
470P
2
1
3
4
X1
SMC 6 02
R106
5K11
R107
5K11
C67
22P
C66
22P
R90
10K0
R81
27R
C129
000u/10V
3
2
1
U1A
4580M R89
10K0
R105
5K11
C65
22P
R117
5K11
C77
22P
C161
47u/25V
R153
20K
3c
5e
1a
4d
2b
X9
JY 6351G 02 250
5
6
7
U1B
4580M
3
2
1
U9A
4580M
R1
47R
R2
47R
VR2
O10K
C3
470P
C99
22u/35V R35
11K0
LINE IN2
MIC 2
C115
47u/50V
R51
3K60
R67
6K81 1/4W
PH PWR
C10
470P
R68
6K81 1/4W
C116
47u/50V
C26
47P
R36
11K0 R52
3K60
C100
22u/35V
R27
51K1
R25
51K1
C4
470P
2
1
3
4
X2
SMC 6 02
R109
5K11
R110
5K11
C70
22P
C69
22P
R92
10K0
R82
27R
C130
000u/10V
3
2
1
U2A
4580M R91
10K0
R108
5K11
C68
22P R118
5K11
C78
22P
C162
47u/25V
R154
20K
3c
5e
1a
4d
2b
X10
JY 6351G 02 250
5
6
7
U2B
4580M
3
2
1
U10A
4580M
R3
47R
R4
47R
VR3
O10K
C5
470P
C101
22u/35V R37
11K0
LINE IN3
MIC 3
C117
47u/50V
R53
3K60
R69
6K81 1/4W
PH PWR
C11
470P
R70
6K81 1/4W
C118
47u/50V
C27
47P
R38
11K0 R 4
3K 0
C102
22u/35V
R20
51K1
R18
51K1
C6
470P
2
1
3
4
X3
SMC 6 02
R112
5K11
R113
5K11
C73
22P
C72
22P
R94
10K0
R83
27R
C131
000u/10V
3
2
1
U3A
4580M R93
10K0
R111
5K11
C71
22P
R119
5K11
C79
22P
C163
47u/25V
R155
20K
3c
5e
1a
4d
2b
X11
JY 6351G 02 250
5
6
7
U3B
4580M
3
2
1
U11A
4580M
R5
47R
R6
47R
VR4
O10K
C7
470P
C103
22u/35V R39
11K0
MIC 4
C119
47u 50V
R55
3K60
R71
6K81 1/4W
PH PWR
C12
470P
R72
6K81 1/4W
C120
47u/50V
C28
47P
R40
11K0 R56
3K60
C104
22u/35V
R28
51K1
R26
51K1
C8
470P
2
1
3
4
X4
SMC 6 02
R115
5K11
R116
5K11
C76
22P
C75
22P
R96
10K0
R84
27R
C132
000u/10V
3
2
1
U4A
4580M R95
10K0 R114
5K11
C74
22P
R120
5K11
C80
22P
C164
47u/25V
R156
20K
3c
5e
1a
4d
2b
X12
JY 6351G 02 250
5
6
7
U4B
4580M
3
2
1
U12A
4580M
R7
47R
R8
47R
LINE IN4
NJM4580M
R137
1K3
5
6
7
U13B
4580M
R149
62K
R173
20K
C177
47u/25V
C151
0 22u/50V
C150
0 22u/50V
C149
0 22u/50V
R165
6K8
1
2
3
SW5A
PS 22E85L
4
5
6
P
SW5B
PS 22E85L
LO CUT
3c
5e
1a
4d
2b
X21
JY 6351G 02 250
T
R
S
RN
TN
INSERT5
5
6
7
U14B
4580M
R150
62K
R142
1K3
R174
20K
C178
47u 25V
C154
0 22u/50V
C153
0 22u/50V
C152
0 22u/50V
R166
6K8
1
2
3
SW6A
PS 22E85L
4
5
6
P
SW6B
PS 22E85L
LO CUT 3c
5e
1a
4d
2b
X22
JY 6351G 02 250
T
R
S
RN
TN
INSERT6
5
6
7
U15B
4580M
R151
62K
R143
1K3
R175
20K
C179
47u 25V
C157
0 22u 50V
C156
0 22u/50V
C155
0 22u 50V
R167
6K8
1
2
3
SW7A
PS 22E85L
4
5
6
P
SW7B
PS 22E85L
LO CUT 3c
5e
1a
4d
2b
X23
JY 6351G 02 250
T
R
S
RN
TN
INSERT7
5
6
7
U16B
4580M
R152
62K
R144
1K3
R176
20K
C180
47u 25V
C160
0 22u 50V
C159
0 22u/50V
C158
0 22u 50V
R168
6K8
1
2
3
SW8A
PS 22E85L
4
5
6
P
SW8B
PS 22E85L
LO CUT 3c
5e
1a
4d
2b
X24
JY 6351G 02 250
T
R
S
RN
TN
INSERT8
MIC GAIN 10~ 60dB
LINE IN GAIN +10~ 40dB
C182
47u/25V
C181
47u/25V
C183
47u/25V
C184
47u/25V
VR5
O10K
C13
470P C105
22u/35V
R41
11K0
LINE IN5
MIC 5 C121
47u/50V R57
3K60
R73
6K81 1/4W
PH PWR
C20
470P
R74
6K81 1/4W
C122
47u/50V
C32
47P
R42
11K0 R58
3K60
C106
22u/35V
R21
51K1
R22
51K1
C21
470P
2
1
3
4
X5
SMC 6 02
R122
5K11
R123
5K11
C82
22P
C81
22P
R98
10K0
R85
27R
C133
1000u/10V
3
2
1
U5A
4580M R97
10K0 R121
5K11
C89
22P
R133
5K11
C90
22P
C165
47u/25V
R157
20K
3c
5e
1a
4d
2b
X17
JY 6351G 02 250
5
6
7
U5B
4580M
3
2
1
U13A
4580M
R13
47R
R9
47R
VR6
O10K
C14
470P
C107
22u/35V R43
11K0
LINE IN6
MIC 6
C123
47u/50V
R59
3K60
R75
6K81 1/4W
PH PWR
C22
470P
R76
6K81 1/4W
C124
47u/50V
C29
47P
R44
11K0 R60
3K60
C108
22u/35V
R29
51K1
R30
51K1
C15
470P
2
1
3
4
X6
SMC 6 02
R125
5K11
R126
5K11
C84
22P
C83
22P
R100
10K0
R86
27R
C134
1000u/10V
3
2
1
U6A
4580M R99
10K0 R124
5K11
C91
22P
R134
5K11
C92
22P
C166
47u 25V
R158
20K
3c
5e
1a
4d
2b
X18
JY 6351G 02 250
5
6
7
U6B
4580M
3
2
1
U14A
4580M
R14
47R
R10
47R
VR7
O10K
C16
470P
C109
22u/35V R45
11K0
LINE IN7
MIC 7
C125
47u/50V
R61
3K60
R77
6K81 1/4W
PH PWR
C23
470P
R78
6K81 1/4W
C126
47u/50V
C30
47P
R46
11K0 R62
3K60
C110
22u/35V
R24
51K1
R23
51K1
C17
470P
2
1
3
4
X7
SMC 6 02
R128
5K11
R129
5K11
C86
22P
C85
22P
R102
10K0
R87
27R
C135
1000u/10V
3
2
1
U7A
4580M R101
10K0
R127
5K11
C93
22P
R135
5K11
C94
22P
C167
47u/25V
R159
20K
3c
5e
1a
4d
2b
X19
JY 6351G 02 250
5
6
7
U7B
4580M
3
2
1
U15A
4580M
R15
47R
R11
47R
VR8
O10K
C18
470P
C111
22u/35V R47
11K0
MIC 8
C127
47u/50V
R63
3K60
R79
6K81 1/4W
PH PWR
C24
470P
R80
6K81 1/4W
C128
47u/50V
C31
47P
R48
11K0 R64
3K60
C112
22u/35V
R32
51K1
R31
51K1
C19
470P
2
1
3
4
X8
SMC 6 02
R131
5K11
R132
5K11
C88
22P
C87
22P
R104
10K0
R88
27R
C136
1000u/10V
3
2
1
U8A
4580M R103
10K0 R130
5K11
C95
22P
R136
5K11
C96
22P
C168
47u/25V
R160
20K
3c
5e
1a
4d
2b
X20
JY 6351G 02 250
5
6
7
U8B
4580M
3
2
1
U16A
4580M
R16
47R
R12
47R
LINE IN8
R141
1K3
84
U2C
84
U8C
84
U1C
84
U6C
C34
100n
C35
100n
+VCC
VCC
C33
100n
C36
100n
84
U7C
C42
100n
C45
100n
C43
100n
C46
100n
C47
100n
C50
100n
84
U5C
84
U3C
84
U4C
C37
100n
C39
100n
C38
100n
C40
100n
C41
100n
C44
100n
84
U10C
84
U16C
84
U9C
84
U14C
C49
100n
C51
100n
C48
100n
C52
100n
84
U15C
C59
100n
C62
100n
C60
100n
C63
100n
C61
100n
C64
100n
84
U13C
84
U11C
84
U12C
C53
100n
C56
100n
C54
100n
C57
100n
C55
100n
C58
100n
RTN CH1
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
CN1
2.0 12P
(TO AMX 220FXMN2)
RTN CH1
RTN CH2
RTN CH3
RTN CH4
RTN CH5
RTN CH6
RTN CH7
RTN CH8
+VCC
VCC
GND
PGND
AMX-220FXPU2-USB (1/2)
RTN CH1
RTN CH2
RTN CH3
RTN CH4
RTN CH5
RTN CH6
RTN CH7
RTN CH8
(TO AMX 220FXPU1)
+VCC
VCC
GND
PGND
PH LED
1
2
3
4
5
6
7
8
CN2
CN2 0 8P
D5
4148
D2
4148
D3
4148
D4
4148
+VCC VCC
+VCC VCC
D14
4148
D10
4148
D11
4148
D12
4148
+VCC
VCC
+VCC VCC
D15
4148
D13
4148
D22
4148
D23
4148
+VCC VCC
+VCC VCC
D27
4148
D24
4148
D25
4148
D26
4148
+VCC VCC
+VCC VCC
D9
4148
D6
4148
D7
4148
D8
4148
VCC VCC
VCC VCC
D20
4148
D16
4148
D17
4148
D18
4148
VCC VCC
VCC VCC
D21
4148
D19
414
D28
4148
D31
414
VCC VCC
VCC VCC
D33
4148
D32
414
D29
4148
D30
4148
VCC VCC
VCC VCC
AMX220FXPU2 USB
AMX220FXPU2 USB S01
+5V
+5V
1
2
3
4
5
6
7
8
9
10
11
12
CN3
2.0 12P
(TO AMX 220FXMN1)
+VCC
VCC
+5V
GND
DGND
PGND
PGND
DGND
GND
+5V
VCC
+VCC
PH LED
PH LED
- 6 -

1 2 34
A
B
C
D
4
321
D
C
B
A
D34
1N4002
D35
1N4002
ZD1
1N5261
C189
100uF/100V
D36
1N4002
D37
1N4002
C190
100uF/100V
TR1
7815A
C185
2200uF/25V
PGND
C193
1000u/25V
D38
RLS4148
C187 2200uF/25V C194
1000u/25V
D39
RLS4148
C196
100uF/100V
PGND
R180
390K
C191
100uF/100V
R181
47K
R183
4R7
R177
20K
C192
47uF/100V
TR3
TIP122
+VCC
-VCC
PH PWR
TR2
7915A
PHANTOM PWR
(47V 0.5W)
CN6
AC IN
SW9
CN2.5-2P-90
PGND
PHANTOM
SW10
2.5-2P-180
C186
2200uF/25V
C188
2200uF/25V
R184
100K
AMX-220FXPU2-USB (2/2)
PH PWR-LED
D40
5817
D1
5817
PH PWR-LED
TR4
3904
R178
47K
+VCCPH LED
- 7 -

1 2 3 4 5 6 7 8 9 10 11 12
A
B
C
D
12
1110987654321
D
C
B
A
PRE CH16
PRE CH15
PRE CH14
PRE CH13
PRE CH16
PRE CH15
(TO AMX 220FXPU1)
1
2
3
4
5
6
7
8
9
10
11
12
CN1
2.0 12P
2TK IN R
2TK IN L
CTRL R R
CTRL R L
AUX SEND2
AUX SEND1
AUX RTN2 R
AUX RTN2 L
AUX RTN1 R
AUX RTN1 L
(TO AMX 220FXPU1)
1
2
3
4
5
6
7
8
9
10
11
12
CN7
2.0 12P
PRE CH14
PRE CH13
PRE CH12
PRE CH11
PRE CH10
PRE CH9
CTRL R R
CTRL R L
2TK IN R
2TK IN L
AUX SEND2
AUX SEND1
AUX RTN2 L
AUX RTN2 R
AUX RTN1 R
AUX RTN1 L
PRE CH12
PRE CH11
PRE CH10
PRE CH9
1
2
3
4
5
6
7
8
9
10
11
12
CN5
2.0 12P
(TO AMX 220FXPU2)
LD16
GR LD18 GR LD20 GR LD22 GR LD24 GR LD26 GR LD28 GR LD30 GR
R320
120R 1/4W VCC
LD17
GR LD19 GR LD21 GR LD23 GR LD25 GR LD27 GR LD29 GR LD31 GR
VCC
LEFT METER
( 30) ( 20) ( 10) ( 7) ( 4) ( 2) (0) (+2)
3
2
1
U17A
4580M
R318
36K
R325
0R0
R323
100K C101
47u/25V
PGND
LD33
GR LD35 GR LD14 YEL LD5 RED
LD32
GR LD34 GR LD13 YEL LD4 RED
TR9
HR
+VCC
TR10
HR
R317
120R 1/4W
R322
510R
R321
510R
R122
10K
PGND
5
6
7
U17B
4580M
R319
36K
R326
0R0
R324
100K C102
47u/25V
PGND
L METER
R METER
84
U17C
4580M
C103
100n
C124
100n
R343
47R
R344
47R
C81
47u/25V
C82
47u/25V
+VCC
VCC
PGND
LD6
RED
LD36
GR
R75
4K7
R342
2K
PGND
PGND
(+4) (+7) (+10) (+18)
PWR ON
PHANTOM
+VCC
R329
10K
R328
10K
PGNDPGND
CR A
C239
C240
3
2
1
U15A
4580M
R141
20K
C13
22P C44
47u/25V
5
6
7
U15B
4580M
R53
18K
C14
22P
R11
5K1
VR64B
10KD
CTRL ROOM
LEFT
CTRL R L
TR11
J112
R25
5K1
SW4A
PS 22E85L
SW5A
PS 22E85L
SW6A
PS 22E85L
MAIN MIX
ALT 3
2TK
R139
20K
R147
20K
R140
20K
R178
10K
R176
120R
R170
100K
R281
47K
R156
12K
R174
100K
LOGIC
R171
100K
R313
15K
R110
10K
+VCC
3
2
1
U14A
4580M
R214
220K
R314
15K
+VCC
R111
10K
C238
100n
D1
BAS316
R23
5K1
LD11
YEL
LD2
RED
2
1
3
SW12A
PS 42E85L PFL
SOLO
D2
BAS316
11
10
12
SW12D
PS 42E85L
R24
5K1
R146
20K
C230
2.2u/50V
SW FET
SW FET
PFL IN L
L METER
TR14
J112
SW FET
3
2
1
U16A
4580M
R151
20K
C25
22P C71
47u/25V
5
6
7
U16B
4580M
R57
18K
C26
22P
R27
5K1
VR64A
10KD
CTRL ROOM
RIGHT
CTRL R R
TR12
J112
R26
5K1
SW4B
PS 22E85L
SW5B
PS 22E85L
SW6B
PS 22E85L
MAIN MIX
ALT 4
2TK
R149
20K
R150
20K
R148
20K
R179
10K
R177
120R
R175
100K
R280
47K
R163
12K
R173
100K
SW FET
PFL IN R
R METER
TR13
J112
SW FET
TR15
J112
R172
100K
CTRL ROOM SOURCE
CTRL R L
CTRL R R
LOGIC
SW FET
SW FET
SW FET
SW FET
SW FET
PFL IN R
PFL IN L
MAINL
MAINR
ALT3 L
ALT4 R
2TK TO CR R
2TK TO CR L
ACTIVE
5
6
7
U1B
4580M
3
2
1
U1A
4580M
R3
8K2
C1
22P
LEFT BUS
RIGHT BUS
C3
22P
R2
8K2
C35
47u/25V
C34
47u/25V
3
2
1
U2A
4580M
3
2
1
U3A
4580M
R52
15K0
C7
33P
R5
10K0
VR1A
10KD
MAIN MIX
1
2
3
GND
7GND 8
VR2A
10KD
R51
15K0
C6
33P
R6
10K0
C41
47u/25V
C42
47u/25V
R89
22K
R88
22K
MAIN MIX
LEFT
RIGHT
MAIN L 2
MAIN R 2
(BALANCED)
5
6
7
U2B
4580M
C95
33P
C99
47u/25V
R9
15K0
R90
22K
R7
68R0
MAIN OUT
LEFT
RIGHT
MAIN L 3
5
6
7
U3B
4580M
C96
33P
C100
47u/25V
R10
15K0
R91
22K
R8
68R0 MAIN R 3
MAIN R 2
MAIN R 3
MAIN L 3
MAIN L 2
3
2
1
U4A
4580M
3
2
1
U5A
4580M
R4 18K
C2
22P
ALT 3
ALT 4
C4
22P
R1 18K
C37
47u/25V
C36
47u/25V
ALT 3-4
(ALT 3)
C97
47u/25V
ALT 3/4 OUT
C98
47u/25V
3
2
1
U6A
4580M
3
2
1
U7A
4580M
R82
15K
C5
22P
AUX 1
AUX 2
C18
22P
R83
15K
C57
47u/25V
C56
47u/25V
5
6
7
U6B
4580M
5
6
7
U7B
4580M
R85
57K6
C10 22P
R65
22K
2
3
GND
4
G D
5
VR4
W50K
AUX1 SEND
1
2
3
G D
4
G D
5
VR5
W50K
R84
57K6
C23 22P
R70
22K
C63
47u/25V
C64
47u/25V
R109
10K
R108
10K
AUX2 SEND
R49
8K2
R50
8K2
TP11
TP12
AUX SEND1
AUX SEND2
5
6
7
U4B
4580M
5
6
7
U5B
4580M
R81
47K
C9 22P
4
5
6
VR3B
W50K
1
2
3
GN
7
GND
8
VR3A
W50K
R80
47K
C8 22P
R47
12K
R48
12K
TP9
TP10
SW1A
PS 22E85L
SW1B
PS 22E85L
LEFT BUS
R136
10K RIGHT BUS
R135
10K
(ALT3/4 TO MIX)
ALT3 L
ALT4 R
AUX SEND1
AUX SEND2
R107
10K
R105
10K VR6B
W50K
VR6A
W50K 3
2
1
U10A
4580M
5
6
7
U10B
4580M
R307
56K
C191 22P
C65
47u/25V
R19
22K
R309
56K
C192
22P
C67
47u/25V
R20
22K
R22
22K
R21
22K
AUX RETURN 1
R312
22K
R311
22K
EFX TO AUX1
AUX 1
AUX 1
LEFT BUS
RIGHT BUS
R104
10K
R106
10K
VR7B
W50K
VR7A
W50K
3
2
1
U11A
4580M
5
6
7
U11B
4580M
R308
56K
C194
22P
C66
47u/25V R142
20K
R310
56K
C193
22P
C68
47u/25V R143
20K
AUX RETURN 2
LEFT BUS
RIGHT BUS
AUX RTN1 L
AUX RTN1 R
AUX RTN2 R
AUX RTN2 L SW2A
PS 22E85L
SW2B
PS 22E85L
AUX RTN1 L
AUX RTN1 R
AUX RTN2 R
AUX RTN2 L
84
U5C
4580M
8
U4C
4580M
84
U7C
4580M
84
U10C
4580M
84
U11C
4580M
84
U3C
4580M
84
U6C
4580M
84
U12C
4580M
C108
100n
C109
100n
C110
100n
C111
100n
C112
100n
C113
100n
C114
100n
C115
100n
C116
100n
C117
100n
C122
100n
C123
100n
C125
100n
C126
100n
C127
100n
C128
100n
+VCC
VCC
R87
10K
R86
10K
84
U2C
4580M
84
U1C
4580M
C104
100n
C105
100n
C106
100n
C107
100n
84
U15C
4580M
84
U14C
4580M
8
U13C
4580M
84
U16C
4580M
C129
100n
C130
100n
C131
100n
C132
100n
C133
100n
C134
100n
C135
100n
C136
100n
AMX-220FXMN1-USB(1/2)
C342
4.7uF/25V
3
5 7
RL1B
RY 5W K
4
6 8
RL1C
RY 5W K
EFXRTN L
EFXRTN R
EFXRTN L
EFXRTN R
AUX SEND2
12
34
56
78
910
1112
1314
1516
CN6
HEADER 8X2 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
C344
4.7uF/25V
DGND
DGND
+5V
+5V
R429
220R
R430
220R
DGND
(MUTE)
C343
4.7uF/25V
LD54
RED
(MUTE)
(MUTE)
1
2
4
8
12
RL1A
RY 5W K
1
+5V
2
4
C335
100N
8
D13
RLS4148
+VCC
PEAK(FLICKER)
MUTE(GLOW)
PRESETVARIATION
AUX SEND2
1
2
3
SW7A
PS 22E85L
10K CHANGE TO 3K3
NetU49 1
NetTR16 C
Ne LD54 2
Ne C342 1
Ne C344 1
NetR400 2
NetR408 2
NetC332 2
NetCN6 16
DSP
JP1
PGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CN2
Z DSP
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
CN3
2.0 12P
(TO AMX 220FXPU1)
ALT3 L
ALT4 R
MAIN R 2
MAIN R 3
MAIN L 2
MAIN L 3
EFXRTN R
EFXRTN L EFXRTN L
EFXRTN R
D8
RLS4148
D5
RLS4148
D7
RLS4148
D6
RLS4148
D3
RLS4148
D4
RLS4148
AMX 220FXMN1 USB
AMX 220FXMN1 USB S01
C243
47u/25V
C244
47u/25V
+VCC
VCC
+5V
+VCC
VCC
+5V
GND
DGND
PGND
PH LED
GND
DGND
PGND
FOOTSWITCH 1a
ALT3 L
ALT4 R
FOOTSWITCH 1a
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
NetU15_9 NetU15 11
NetU15 11
+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
PGND
NetU15 9
+18DB L
+10DB L
+7DB L
+4DB L
+2DB L
0DB L
2DB L
4DB L
7DB L
10DB L
20DB L
30DB L
+VCC
PGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CN8
CON17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CN9
CON17
NetC343 1
Ne U17 8
Ne U17 4
NetU17 8
NetU17 4
NetU17 8
NetU17 4
AUX 2
AUX 1
ALT 4
ALT 3
RIGHT BUS
LEFT BUS LEFT BUS
RIGHT BUS
+VCC
ALT 3
ALT 4
VCC
AUX 1
AUX 2
AFL L
SOLO(PFL) SOLO(PFL)
AFL R
AFL R
AFL L
(TO AMX 220FXMN2)
CR A CR A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CN4
2.0 16P
LOGIC LOGIC
(ALT 4)
R63
22K
R64
22K
R224
22K
DGND
R223
22K
R352
22K
R351
22K
5
6
7
U13B
4580M
R316
22K
C12 22P
C69
47u/25V
AFL L
R144
20K
5
4
6
SW12B
PS 42E85L
5
6
7
U14B
4580M
R315 22K
C24 22P
C70
47u/25V
AFL R
R145
20K
8
7
9
SW12C
PS 42E85L
SOLO(PFL)
PFL IN L
PFL IN R
3
2
1
U13A
4580M
R137
6K2
C11
22P
C43
47u/25V
PFL IN R
PFL IN L
R138
20K
SOLO(PFL)
AFL L
AFL R
**SW12:SOLO MODE
5
6
7
U9B
4580M
3
2
1
U8A
4580M
5
6
7
U8B
4580M
8
U9C
4580M
8
U8C
4580M
R434
10K
R435
10K
R436
10K
C248
100n
C249
100n
C250
100n
C251
100n
C245
22P
C246
22P
C247
22P
R431
10K
R432
10K
R433
10K
R327
68R0
R159
11K0
R162
18K
C20
33P
R161
18K
C19
33P
R100
8K66
R102
10K0
R101
8K66
R357
68R0
R103
10K0
R160
11K0
R226
18K
C22
33P
R225
18K
C21
33P
5
6
7
U36B
4580M
R364
18K
C38
22P
R362
5K1
R360
10K
R358
120R
3
2
1
U36A
4580M
R365
18K
C39
22P
R363
5K1
R361
10K
R359
120R
MAINL
MAINR
MAINL
MAINR
84
U36C
4580M
C40
100n
C52
100n
MAINR
MAINL
R367
10K
TR18
3904
DGND DGND
TR19
3906
R366
10K
DGND DGND
R369
47K
C53
330uF 16V
+5VD
TR17
3904
R368
20K
R370
470R
DGND DGND
PH LED
- 8 -

1 2 3 4 5 6 7 8 9 10 11 12
A
B
C
D
12
1110987654321
D
C
B
A
AMX-220FXMN1-USB(2/2)
EQ HI (12KHz)
VR33A
B50K
R243
6K8
VR45A
B50K
R241
6K8
LO(80Hz)
R277
47K
C45
47u/25V
5
6
7
U24B
4580M
R263
1M
C188
22P
R92
10K
VR37A
B50K
R221
22K MID LO(500Hz)
R180
1K8
C161
12n(M)
R182
1K8 C221
47n(M)
C205
3.3n(M)
C177
1n(M)
C169
12n(M)
C47
47u/25V
R279
47K
R66
4K7
C229
2.2u/50V R245
6K8
TR2
BR
TR1
BR
R295
1K5
+VCC
LD1
RED
R12
5K1
3
2
1
U32A
4580M
VR49B
10KD
PEAK
R55
43K
C15 22P
C50
47u/25V
LEVEL
PGND
R95
10K
R96
10K
R13
5K1
5
6
7
U32B
4580M
VR49A
10KD
R54
43K
C16
22P
C49
47u/25V
LEVEL
R99
10K
R98
10K
R14
20K
R16
20K
LEFT BUS
RIGHT BUS
2
1
3
SW13A
PS 42E85L
5
4
6
SW13B
PS 42E85L
ALT 3
ALT 4
2
1
3
SW14A
PS 42E85L
5
4
6
SW14B
PS 42E85L
AFL L
AFL R
R299
27K
R300
27K
R18
5K1
VR90
W50K
AUX 1
VR89
W50K
R17
5K1
AUX 2
AUX POST
AUX PRE
1
2
3
J1
POST
(PRE)
8
7
9
SW13C
PS 42E85L
2
1
3
SW8A
PS 22E85L
5
4
6
SW8B
PS 22E85L
8
7
9
SW14C
PS 42E85L
AUX1 PRE/POST
R97
10K
SOLO(PFL)
11
10
12
SW14D
PS 42E85L
D9
BAS316
LOGIC
LD9
YEL (SOLO)
R291
2K2
VCC
(LOGIC 2.0V or 0.5V)
SW13:MUTE/ALT3 4
SW14:SOLO,PFL
PRE CH9 PRE CH9
LOGIC
3
2
1
U24A
4580M
R233
200K
C185
22P
R212
220K
R187
1K8
VR41A
B50K
R184
1K8
HI MID(3KHz)
R157
12K
C213
3.3n(M)
R261
1M
EQ HI (12KHz)
VR33B
B50K
R244
6K8
VR45B
B50K
R242
6K8
LO(80Hz)
R278
47K
C46
47u/25V
5
6
7
U25B
4580M
R264
1M
C189
22P
R93
10K
VR37B
B50K
R222
22K MID LO(500Hz)
R181
1K8
C162
12n(M)
R183
1K8 C222
47n(M)
C206
3.3n(M)
C178
1n(M)
C170
12n(M)
C48
47u/25V
PRE CH10 PRE CH10
3
2
1
U25A
4580M
R234
200K
C186
22P
R213
220K
R188
1K8
VR41B
B50K
R185
1K8
HI MID(3KHz)
R158
12K
C214
3.3n(M)
R262
1M
R67
2K7
VR69
B5K
R69
2K7
EQ HI (12KHz)
VR34A
B50K
R249
6K8
VR46A
B50K
R246
6K8
LO(80Hz)
R282
47K
C72
47u/25V
5
6
7
U26B
4580M
R268
1M
C190
22P
R94
10K
VR38A
B50K
R227
22K MID LO(500Hz)
R190
1K8
C163
12n(M)
R193
1K8 C223
47n(M)
C207
3.3n(M)
C179
1n(M)
C171
12n(M)
C75
47u/25V
PRE CH11 PRE CH11
3
2
1
U26A
4580M
R235
200K
C187
22P
R215
220K
R189
1K8
VR42A
B50K
R186
1K8
HI MID(3KHz)
R164
12K
C215
3.3n(M)
R265
1M
EQ HI (12KHz)
VR34B
B50K
R250
6K8
VR46B
B50K
R247
6K8
LO(80Hz)
R283
47K
C73
47u/25V
5
6
7
U27B
4580M
R269
1M
C197
22P
R112
10K
VR38B
B50K
R228
22K MID LO(500Hz)
R191
1K8
C164
12n(M)
R194
1K8 C224
47n(M)
C208
3.3n(M)
C180
1n(M)
C172
12n(M)
C76
47u/25V
PRE CH12 PRE CH12
3
2
1
U27A
4580M
R236
200K
C195
22P
R216
220K
R198
1K8
VR42B
B50K
R196
1K8
HI MID(3KHz)
R165
12K
C216
3.3n(M)
R266
1M
R285
47K
R71
4K7
C231
2.2u/50V R252
6K8
TR4
BR
TR3
BR
R296
1K5
+VCC
LD3
RED
R28
5K1
3
2
1
U33A
4580M
VR50B
10KD
PEAK
R56
43K
C17
22P
C51
47u/25V
LEVEL
PGND
R114
10K
R115
10K
R29
5K1
5
6
7
U33B
4580M
VR50A
10KD
R58
43K
C27 22P
C78
47u/25V
LEVEL
R120
10K
R118
10K
R15
20K
R32
20K
LEFT BUS
RIGHT BUS
2
1
3
SW15A
PS 42E85L
5
4
6
SW15B
PS 42E85L
ALT 3
ALT 4
2
1
3
SW16A
PS 42E85L
5
4
6
SW16B
PS 42E85L
AFL L
AFL R
R301
27K
R302
27K
R35
5K1
VR92
W50K
AUX 1
VR91
W50K
R34
5K1
AUX 2
AUX POST
AUX PRE
J2
POST
(PRE)
8
7
9
SW15C
PS 42E85L
2
1
3
SW9A
PS 22E85L
5
4
6
SW9B
PS 22E85L
8
7
9
SW16C
PS 42E85L
AUX1 PRE/POST
R117
10K
SOLO(PFL)
SW15:MUTE/ALT3 4
SW16:SOLO,PFL
11
10
12
SW16D
PS 42E85L
D10
BAS316
LOGIC
LD10
YEL (SOLO)
R292
2K2
VCC
(LOGIC 2.0V or 0.5V)
LOGIC
R68
2K7
VR70
B5K
R73
2K7
EQ HI (12KHz)
VR35A
B50K
R251
6K8
VR47A
B50K
R248
6K8
LO(80Hz)
R284
47K
C74
47u/25V
5
6
7
U28B
4580M
R270
1M
C198
22P
R113
10K
VR39A
B50K
R229
22K MID LO(500Hz)
R192
1K8
C165
12n(M)
R195
1K8 C225
47n(M)
C209
3.3n(M)
C181
1n(M)
C173
12n(M)
C77
47u/25V
PRE CH13 PRE CH13
3
2
1
U28A
4580M
R237
200K
C196
22P
R217
220K
R199
1K8
VR43A
B50K
R197
1K8
HI MID(3KHz)
R166
12K
C217
3.3n(M)
R267
1M
EQ HI (12KHz)
VR35B
B50K
R255
6K8
VR47B
B50K
R253
6K8
LO(80Hz)
R286
47K
C83
47u/25V
5
6
7
U29B
4580M
R274
1M
C202
22P
R123
10K
VR39B
B50K
R230
22K MID LO(500Hz)
R200
1K8
C166
12n(M)
R202
1K8 C226
47n(M)
C210
3.3n(M)
C182
1n(M)
C174
12n(M)
C86
47u/25V
PRE CH14 PRE CH14
3
2
1
U29A
4580M
R239
200K
C199
22P
R218
220K
R207
1K8
VR43B
B50K
R204
1K8
HI MID(3KHz)
R169
12K
C218
3.3n(M)
R271
1M
R289
47K
R77
4K7
C233
2.2u/50V
R258
6K8
TR7
BR
TR5
BR
R298
1K5
+VCC
LD8
RED
R30
5K1
3
2
1
U34A
4580M
VR51B
10KD
PEAK
R60
43K
C28
22P
C80
47u/25V
LEVEL
PGND
R116
10K
R127
10K
R36
5K1
5
6
7
U34B
4580M
VR51A
10KD
R59
43K
C29 22P
C79
47u/25V
LEVEL
R121
10K
R119
10K
R31
20K
R33
20K
LEFT BUS
RIGHT BUS
2
1
3
SW17A
PS 42E85L
5
4
6
SW17B
PS 42E85L
ALT 3
ALT 4
2
1
3
SW18A
PS 42E85L
5
4
6
SW18B
PS 42E85L
AFL L
AFL R
R303
27K
R304
27K
R43
5K1
VR94
W50K
AUX 1
VR93
W50K
R42
5K1
AUX 2
AUX POST
AUX PRE
J3
POST
(PRE)
8
7
9
SW17C
PS 42E85L
2
1
3
SW10A
PS 22E85L
5
4
6
SW10B
PS 22E85L
8
7
9
SW18C
PS 42E85L
AUX1 PRE/POST
R130
10K
SOLO(PFL)
SW17:MUTE/ALT3 4
SW18:SOLO,PFL
11
10
12
SW18D
PS 42E85L
D11
BAS316
LOGIC
LD12
YEL (SOLO)
R293
2K2
VCC
(LOGIC 2.0V or 0.5V)
LOGIC
EQ HI (12KHz)
VR36A
B50K
R256
6K8
VR52A
B50K
R254
6K8
LO(80Hz)
R287
47K
C84
47u/25V
5
6
7
U30B
4580M
R275
1M
C203
22P
R124
10K
VR40A
B50K
R231
22K MID LO(500Hz)
R201
1K8
C167
12n(M)
R203
1K8 C227
47n(M)
C211
3.3n(M)
C183
1n(M)
C175
12n(M)
C87
47u/25V
PRE CH15 PRE CH15
3
2
1
U30A
4580M
R240
200K
C200
22P
R219
220K
R208
1K8
VR48A
B50K
R205
1K8
HI MID(3KHz)
R168
12K
C219
3.3n(M)
R272
1M
EQ HI (12KHz)
VR36B
B50K
R260
6K8
VR52B
B50K
R259
6K8
LO(80Hz)
R288
47K
C85
47u/25V
5
6
7
U31B
4580M
R276
1M
C204
22P
R125
10K
VR40B
B50K
R232
22K MID LO(500Hz)
R210
1K8
C168
12n(M)
R211
1K8 C228
47n(M)
C212
3.3n(M)
C184
1n(M)
C176
12n(M)
C88
47u/25V
PRE CH16 PRE CH16
3
2
1
U31A
4580M
R238
200K
C201
22P
R220
220K
R209
1K8
VR48B
B50K
R206
1K8
HI MID(3KHz)
R167
12K
C220
3.3n(M)
R273
1M
R290
47K
R76
4K7
C232
2.2u/50V R257
6K8
TR6
BR
TR8
BR
R297
1K5
+VCC
LD7
RED
R37
5K1
3
2
1
U35A
4580M
VR56B
10KD
PEAK
R62
43K
C30 22P
C90
47u/25V
LEVEL
PGND
R126
10K
R128
10K
R38
5K1
5
6
7
U35B
4580M
VR56A
10KD
R61
43K
C31 22P
C89
47u/25V
LEVEL
R132
10K
R131
10K
R39
20K
R40
20K
LEFT BUS
RIGHT BUS
2
1
3
SW19A
PS 42E85L
5
4
6
SW19B
PS 42E85L
ALT 3
ALT 4
2
1
3
SW20A
PS 42E85L
5
4
6
SW20B
PS 42E85L
AFL L
AFL R
R305
27K
R306
27K
R46
5K1
VR96
W50K
AUX 1
VR95
W50K
R41
5K1
AUX 2
AUX POST
AUX PRE
J4
POST
(PRE)
8
7
9
SW19C
PS 42E85L
2
1
3
SW11A
PS 22E85L
5
4
6
SW11B
PS 22E85L
8
7
9
SW20C
PS 42E85L
AUX1 PRE/POST
R129
10K
SOLO(PFL)
SW19:MUTE/ALT3 4
SW20:SOLO,PFL
11
10
12
SW20D
PS 42E85L
D12
BAS316
LOGIC
LD15
YEL (SOLO)
R294
2K2
VCC
(LOGIC 2.0V or 0.5V)
LOGIC
R72
2K7
VR71
B5K
R74
2K7
R78
2K7
VR72
B5K
R79
2K7
11
10
12
SW13D
PS 42E85L
LD40
RED CH9/10
11
10
12
SW15D
PS 42E85L
LD39
RED CH11/12
11
10
12
SW17D
PS 42E85L
LD38
RED CH13/14
11
10
12
SW19D
PS 42E85L
LD37
RED CH/15/16
TR16
HR
R346
120R 1/4W
R345
510R
+VCC
CR A
VCC
84
U26C
4580M
8
U29C
4580M
8
U25C
4580M
84
U28C
4580M
84
U31C
4580M
8
U34C
4580M
8
U35C
4580M
84
U32C
4580M
84
U24C
4580M
84
U27C
4580M
8
U30C
4580M
84
U33C
4580M
C137
100n
C138
100n
C139
100n
C140
100n
C141
100n
C142
100n
C143
100n
C144
100n
C145
100n
C146
100n
C147
100n
C148
100n
C149
100n
C150
100n
C151
100n
C152
100n
C153
100n
C154
100n
C155
100n
C156
100n
C157
100n
C158
100n
C159
100n
C160
100n
+VCC
VCC
R331
5K1
R330
5K6
R333
5K1
R332
5K6
R335
5K1
R334
5K6
R337
5K1
R336
5K6
R339
5K1
R338
5K6
R341
5K1
R340
5K6
R348
5K1
R347
5K6
R350
5K1
R349
5K6
C93
47u/25V
R154
20K
3
2
1
U12A
4580M
R155
22K
C33
22P
C94
47u/25V
R134
10K
R45
18K
C91
47u/25V R152
20K
5
6
7
U12B
4580M
R153
22K
C32
22P
C92
47u/25V
R133
10K
R44
18K
LEFT BUS RIGHT BUS
2TK TO MIX
C241
100P C242
100P
2TK IN L 2TK IN R
SW3A
PS 22E85L SW3B PS 22E85L
2TK IN L 2TK IN R
2TK TO CR L 2TK TO CR R
VR97A
W50K VR97B W50K
R353
5K1
R354
5K1
R356
5K1
R355
5K1
- 9 -

1 2 3 4 5 6 7 8 9 10 11 12
A
B
C
D
12
1110987654321
D
C
B
A
R104
5K1
VR74
W50K
AUX 1
R281
47K
R245
4K7
C249
2.2u/50V R217
6K8
TR1
BR
TR2
BR
R317
1K5
+VCC
LD13
RED
R97
5K1
3
2
1
U9A
4580M
VR53A
10KD
PEAK
R301
68K
C137
22P
VR73
W50K
C209
47u/25V
R103
5K1
AUX 2
LEVEL
AUX POST
R101
20K
R102
20K
LEFT BUS
RIGHT BUS
PAN
PGND
AUX PRE
J1_1
POST
(PRE)
2
1
3
SW2A
PS 42E85L
5
4
6
SW2B
PS 42E85L
8
7
9
SW2C
PS 42E85L
ALT 3
ALT 4
2
1
3
SW1A
PS 22E85L
5
4
6
SW1B
PS 22E85L
2
1
3
SW3A
PS 42E85L
5
4
6
SW3B
PS 42E85L
8
7
9
SW3C
PS 42E85L
11
10
12
SW3D
PS 42E85L
AFL L
AFL R
R329
27K
R330
27K
AUX1 PRE/POST
SW2:MUTE/ALT3 4
SW3:SOLO,PFL
R37
10K
SOLO(PFL)
D1
BAS316
LOGIC
LD1
YEL
(SOLO)
R181
2K2
VCC
(LOGIC 2.0V or 0.5V)
C206
47u/25V
R108
5K1
VR76
W50K
AUX 1
R282
47K
R246
4K7
C250
2.2u/50V R218
6K8
TR3
BR
TR4
BR
R318
1K5
+VCC
LD14
RED
R98
5K1
3
2
1
U10A
4580M
VR54A
10KD
PEAK
R302
68K
C138
22P
VR75
W50K
C210
47u/25V
R107
5K1
AUX 2
LEVEL
AUX POST
R105
20K
R106
20K
LEFT BUS
RIGHT BUS
PAN
PGND
AUX PRE
J2_1
POST
(PRE)
2
1
3
SW5A
PS 42E85L
5
4
6
SW5B
PS 42E85L
8
7
9
SW5C
PS 42E85L
ALT 3
ALT 4
2
1
3
SW4A
PS 22E85L
5
4
6
SW4B
PS 22E85L
2
1
3
SW6A
PS 42E85L
5
4
6
SW6B
PS 42E85L
8
7
9
SW6C
PS 42E85L
11
10
12
SW6D
PS 42E85L
AFL L
AFL R
R331
27K
R332
27K
AUX1 PRE/POST
SW5:MUTE/ALT3 4
SW6:SOLO,PFL
R38
10K
SOLO(PFL)
D2
BAS316
LOGIC
LD2
YEL
(SOLO)
R182
2K2
VCC
(LOGIC 2.0V or 0.5V)
C207
47u/25V
R112
5K1
VR78
W50K
AUX 1
R283
47K
R247
4K7
C251
2.2u/50V R219
6K8
TR5
BR
TR6
BR
R319
1K5
+VCC
LD15
RED
R99
5K1
3
2
1
U11A
4580M
VR55A
10KD
PEAK
R303
68K
C139
22P
VR77
W50K
C211
47u/25V
R111
5K1
AUX 2
LEVEL
AUX POST
R109
20K
R110
20K
LEFT BUS
RIGHT BUS
PAN
PGND
AUX PRE
J3_1
POST
(PRE)
2
1
3
SW8A
PS 42E85L
5
4
6
SW8B
PS 42E85L
8
7
9
SW8C
PS 42E85L
ALT 3
ALT 4
2
1
3
SW7A
PS 22E85L
5
4
6
SW7B
PS 22E85L
2
1
3
SW9A
PS 42E85L
5
4
6
SW9B
PS 42E85L
8
7
9
SW9C
PS 42E85L
11
10
12
SW9D
PS 42E85L
AFL L
AFL R
R333
27K
R334
27K
AUX1 PRE/POST
SW8:MUTE/ALT3 4
SW9:SOLO,PFL
R39
10K
SOLO(PFL)
D3
BAS316
LOGIC
LD3
YEL
(SOLO)
R183
2K2
VCC
(LOGIC 2.0V or 0.5V)
C208
47u/25V
R116
5K1
VR80
W50K
AUX 1
R284
47K
R248
4K7
C252
2.2u/50V R220
6K8
TR7
BR
TR8
BR
R320
1K5
+VCC
LD16
RED
R100
5K1
3
2
1
U12A
4580M
VR56A
10KD
PEAK
R304
68K
C140
22P
VR79
W50K
C212
47u/25V
R115
5K1
AUX 2
LEVEL
AUX POST
R113
20K
R114
20K
LEFT BUS
RIGHT BUS
PAN
PGND
AUX PRE
J4_1
POST
(PRE)
2
1
3
SW11A
PS 42E85L
5
4
6
SW11B
PS 42E85L
8
7
9
SW11C
PS 42E85L
ALT 3
ALT 4
2
1
3
SW10A
PS 22E85L
5
4
6
SW10B
PS 22E85L
2
1
3
SW12A
PS 42E85L
5
4
6
SW12B
PS 42E85L
8
7
9
SW12C
PS 42E85L
11
10
12
SW12D
PS 42E85L
AFL L
AFL R
R335
27K
R336
27K
AUX1 PRE/POST
SW11:MUTE/ALT3 4
SW12:SOLO,PFL
R40
10K
SOLO(PFL)
D4
BAS316
LOGIC
LD4
YEL
(SOLO)
R184
2K2
VCC
(LOGIC 2.0V or 0.5V)
8
U3C
4580M
84
U6C
4580M
8
U2C
4580M
84
U5C
4580M
8
U8C
4580M
84
U11C
4580M
8
U12C
4580M
84
U9C
4580M
84
U1C
4580M
84
U4C
4580M
8
U7C
4580M
84
U10C
4580M
C81
100n
C84
100n
C82
100n
C85
100n
C83
100n
C86
100n
C87
100n
C90
100n
C88
100n
C91
100n
C89
100n
C92
100n
C93
100n
C96
100n
C94
100n
C97
100n
C95
100n
C98
100n
C99
100n
C102
100n
C100
100n
C103
100n
C101
100n
C104
100n
+VCC
VCC
LOGIC
LOGIC
LOGIC
LOGIC
EQ HI (12K)
C17
6.8n VR17
B50K
R169
5K6
VR25
B50K
R165
5K6
LO (80Hz)
R33
10K
5
6
7
U9B
4580M
R193
1M
C29
22P
R85
3K9
VR9
B50K MID (FREQ 100Hz 8K)
C65
33n
C69
33n
C5
6.8n
C205
47u/25V
C201
47u/25V
RTN CH1 RTN CH1
5
6
7
U1B
4580M
3
2
1
U1A
4580M
R26
10K
R25
10K
C25
22P
C57
1.5n
R93
5K1
R1
3K
VR1B
500KC
VR1A
500KC
R13
6K2
C1
6.8n
R9
6K2
EQ HI (12K)
C18
6.8n VR18
B50K
R170
5K6
VR26
B50K
R166
5K6
LO (80Hz)
R34
10K
5
6
7
U10B
4580M
R194
1M
C30
22P
R86
3K9
VR10
B50K MID (FREQ 100Hz 8K)
C66
33n
C70
33n
C6
6.8n
C202
47u/25V
RTN CH2 RTN CH2
5
6
7
U2B
4580M
3
2
1
U2A
4580M
R28
10K
R27
10K
C26
22P
C58
1.5n
R94
5K1
R2
3K
VR2B
500KC
VR2A
500KC
R14
6K2
C2
6.8n
R10
6K2
EQ HI (12K)
C19
6.8n VR19
B50K
R171
5K6
VR27
B50K
R167
5K6
LO (80Hz)
R35
10K
5
6
7
U11B
4580M
R195
1M
C31
22P
R87
3K9
VR11
B50K MID (FREQ 100Hz 8K)
C67
33n
C71
33n
C7
6.8n
C203
47u/25V
RTN CH3 RTN CH3
5
6
7
U3B
4580M
3
2
1
U3A
4580M
R30
10K
R29
10K
C27
22P
C59
1.5n
R95
5K1
R3
3K
VR3B
500KC
VR3A
500KC
R15
6K2
C3
6.8n
R11
6K2
EQ HI (12K)
C20
6.8n VR20
B50K
R172
5K6
VR28
B50K
R168
5K6
LO (80Hz)
R36
10K
5
6
7
U12B
4580M
R196
1M
C32
22P
R88
3K9
VR12
B50K MID (FREQ 100Hz 8K)
C68
33n
C72
33n
C8
6.8n
C204
47u/25V
RTN CH4 RTN CH4
5
6
7
U4B
4580M
3
2
1
U4A
4580M
R32
10K
R31
10K
C28
22P
C60
1.5n
R96
5K1
R4
3K
VR4B
500KC
VR4A
500KC
R16
6K2
C4
6.8n
R12
6K2
R128
5K1
VR82
W50K
AUX 1
R285
47K
R257
4K7
C253
2.2u/50V R221
6K8
TR9
BR
TR10
BR
R321
1K5
+VCC
LD17
RED
R121
5K1
3
2
1
U13A
4580M
VR57A
10KD
PEAK
R305
68K
C141
22P
VR81
W50K
C221
47u/25V
R127
5K1
AUX 2
LEVEL
AUX POST
R125
20K
R126
20K
LEFT BUS
RIGHT BUS
PAN
PGND
AUX PRE
J5_1
POST
(PRE)
2
1
3
SW33A
PS 42E85L
5
4
6
SW33B
PS 42E85L
8
7
9
SW33C
PS 42E85L
ALT 3
ALT 4
2
1
3
SW32A
PS 22E85L
5
4
6
SW32B
PS 22E85L
2
1
3
SW34A
PS 42E85L
5
4
6
SW34B
PS 42E85L
8
7
9
SW34C
PS 42E85L
11
10
12
SW34D
PS 42E85L
AFL L
AFL R
R337
27K
R338
27K
AUX1 PRE/POST
SW33:MUTE/ALT3 4
SW34:SOLO,PFL
R53
10K
SOLO(PFL)
D5
BAS316
LOGIC
LD5
YEL
(SOLO)
R185
2K2
VCC
(LOGIC 2.0V or 0.5V)
LOGIC
EQ HI (12K)
C21
6.8n VR21
B50K
R177
5K6
VR29
B50K
R173
5K6
LO (80Hz)
R43
10K
5
6
7
U13B
4580M
R197
1M
C37
22P
R89
3K9
VR13
B50K MID (FREQ 100Hz 8K)
C73
33n
C77
33n
C13
6.8n
C217
47u/25V
C213
47u/25V
RTN CH5 RTN CH5
5
6
7
U5B
4580M
3
2
1
U5A
4580M
R42
10K
R41
10K
C33
22P
C61
1.5n
R117
5K1
R5
3K
VR5B
500KC
VR5A
500KC
R21
6K2
C9
6.8n
R17
6K2
R132
5K1
VR84
W50K
AUX 1
R286
47K
R258
4K7
C254
2.2u/50V R222
6K8
TR11
BR
TR12
BR
R322
1K5
+VCC
LD18
RED
R122
5K1
3
2
1
U14A
4580M
VR58A
10KD
PEAK
R306
68K
C142
22P
VR83
W50K
C222
47u/25V
R131
5K1
AUX 2
LEVEL
AUX POST
R129
20K
R130
20K
LEFT BUS
RIGHT BUS
PAN
PGND
AUX PRE
J6_1
POST
(PRE)
2
1
3
SW36A
PS 42E85L
5
4
6
SW36B
PS 42E85L
8
7
9
SW36C
PS 42E85L
ALT 3
ALT 4
2
1
3
SW35A
PS 22E85L
5
4
6
SW35B
PS 22E85L
2
1
3
SW37A
PS 42E85L
5
4
6
SW37B
PS 42E85L
8
7
9
SW37C
PS 42E85L
11
10
12
SW37D
PS 42E85L
AFL L
AFL R
R339
27K
R340
27K
AUX1 PRE/POST
SW36:MUTE/ALT3 4
SW37:SOLO,PFL
R54
10K
SOLO(PFL)
D6
BAS316
LOGIC
LD6
YEL
(SOLO)
R186
2K2
VCC
(LOGIC 2.0V or 0.5V)
LOGIC
EQ HI (12K)
C22
6.8n VR22
B50K
R178
5K6
VR30
B50K
R174
5K6
LO (80Hz)
R46
10K
5
6
7
U14B
4580M
R198
1M
C38
22P
R90
3K9
VR14
B50K MID (FREQ 100Hz 8K)
C74
33n
C78
33n
C14
6.8n
C218
47u/25V
C214
47u/25V
RTN CH6 RTN CH6
5
6
7
U6B
4580M
3
2
1
U6A
4580M
R45
10K
R44
10K
C34
22P
C62
1.5n
R118
5K1
R6
3K
VR6B
500KC
VR6A
500KC
R22
6K2
C10
6.8n
R18
6K2
R136
5K1
VR86
W50K
AUX 1
R287
47K
R259
4K7
C255
2.2u/50V R223
6K8
TR13
BR
TR14
BR
R323
1K5
+VCC
LD19
RED
R123
5K1
3
2
1
U15A
4580M
VR59A
10KD
PEAK
R307
68K
C143
22P
VR85
W50K
C223
47u/25V
R135
5K1
AUX 2
LEVEL
AUX POST
R133
20K
R134
20K
LEFT BUS
RIGHT BUS
PAN
PGND
AUX PRE
J7_1
POST
(PRE)
2
1
3
SW39A
PS 42E85L
5
4
6
SW39B
PS 42E85L
8
7
9
SW39C
PS 42E85L
ALT 3
ALT 4
2
1
3
SW38A
PS 22E85L
5
4
6
SW38B
PS 22E85L
2
1
3
SW40A
PS 42E85L
5
4
6
SW40B
PS 42E85L
8
7
9
SW40C
PS 42E85L
11
10
12
SW40D
PS 42E85L
AFL L
AFL R
R341
27K
R342
27K
AUX1 PRE/POST
SW39:MUTE/ALT3 4
SW40:SOLO,PFL
R55
10K
SOLO(PFL)
D7
BAS316
LOGIC
LD7
YEL
(SOLO)
R187
2K2
VCC
(LOGIC 2.0V or 0.5V)
LOGIC
EQ HI (12K)
C23
6.8n VR23
B50K
R179
5K6
VR31
B50K
R175
5K6
LO (80Hz)
R51
10K
5
6
7
U15B
4580M
R199
1M
C39
22P
R91
3K9
VR15
B50K M D (FREQ 100Hz 8K)
C75
33n
C79
33n
C15
6.8n
C219
47u/25V
C215
47u/25V
RTN CH7 RTN CH7
5
6
7
U7B
4580M
3
2
1
U7A
4580M
R48
10K
R47
10K
C35
22P
C63
1.5n
R119
5K1
R7
3K
VR7B
500KC
VR7A
500KC
R23
6K2
C11
6.8n
R19
6K2
R140
5K1
VR88
W50K
AUX 1
R288
47K
R260
4K7
C256
2.2u/50V R224
6K8
TR15
BR
TR16
BR
R324
1K5
+VCC
LD20
RED
R124
5K1
3
2
1
U16A
4580M
VR60A
10KD
PEAK
R308
68K
C144
22P
VR87
W50K
C224
47u/25V
R139
5K1
AUX 2
LEVEL
AUX POST
R137
20K
R138
20K
LEFT BUS
RIGHT BUS
PAN
PGND
AUX PRE
J8_1
POST
(PRE)
2
1
3
SW42A
PS 42E85L
5
4
6
SW42B
PS 42E85L
8
7
9
SW42C
PS 42E85L
ALT 3
ALT 4
2
1
3
SW41A
PS 22E85L
5
4
6
SW41B
PS 22E85L
2
1
3
SW43A
PS 42E85L
5
4
6
SW43B
PS 42E85L
8
7
9
SW43C
PS 42E85L
11
10
12
SW43D
PS 42E85L
AFL L
AFL R
R343
27K
R344
27K
AUX1 PRE/POST
SW42:MUTE/ALT3 4
SW43:SOLO,PFL
R56
10K
SOLO(PFL)
D8
BAS316
LOGIC
LD8
YEL
(SOLO)
R188
2K2
VCC
(LOGIC 2.0V or 0.5V)
LOGIC
EQ HI (12K)
C24
6.8n VR24
B50K
R180
5K6
VR32
B50K
R176
5K6
LO (80Hz)
R52
10K
5
6
7
U16B
4580M
R200
1M
C40
22P
R92
3K9
VR16
B50K M D (FREQ 100Hz 8K)
C76
33n
C80
33n
C16
6.8n
C220
47u/25V
C216
47u/25V
RTN CH8 RTN CH8
5
6
7
U8B
4580M
3
2
1
U8A
4580M
R50
10K
R49
10K
C36
22P
C64
1.5n
R120
5K1
R8
3K
VR8B
500KC
VR8A
500KC
R24
6K2
C12
6.8n
R20
6K2
84
U15C
4580M
8
U16C
4580M
8
U13C
4580M
84
U14C
4580M
C105
100n
C108
100n
C106
100n
C109
100n
C107
100n
C110
100n
C111
100n
C112
100n
R249
2K2
R250
2K2
VR61
B5K
R251
2K2
R252
2K2
VR62
B5K
R253
2K2
R254
2K2
VR63
B5K
R255
2K2
R256
2K2
VR64
B5K
R261
2K2
R262
2K2
VR65
B5K
R263
2K2
R264
2K2
VR66
B5K
R265
2K2
R266
2K2
VR67
B5K
R267
2K2
R268
2K2
VR68
B5K
1
2
3
4
5
6
7
8
9
10
11
12
CN1
2.0 12P
RTN CH1
RTN CH2
RTN CH3
RTN CH4
RTN CH5
RTN CH6
RTN CH7
RTN CH8
(TO AMX 220FXPU2)
AUX 2
AUX 1
ALT 4
ALT 3
RIGHT BUS
LEFT BUS LEFT BUS
RIGHT BUS
+VCC
ALT 3
ALT 4
VCC
AUX 1
AUX 2
AFL L
SOLO(PFL) SOLO(PFL)
AFL R
AFL R
AFL L
(TO AMX 220FXMN1)
AMX-220FXMN2-USB
11
10
12
SW33D
PS 42E85L
LD12
RED
VCC
(MUTE/ALT3 4)
CH5
11
10
12
SW36D
PS 42E85L
LD11
RED CH6
11
10
12
SW39D
PS 42E85L
LD10
RED CH7
11
10
12
SW42D
PS 42E85L
LD9
RED CH8
TR17
HR
R57
120R 1/4W
R58
510R
+VCC
CR A
11
10
12
SW2D
PS 42E85L
LD24
RED
(MUTE/ALT3 4)
CH1
11
10
12
SW5D
PS 42E85L
LD23
RED CH2
11
10
12
SW8D
PS 42E85L
LD22
RED CH3
11
10
12
SW11D
PS 42E85L
LD21
RED CH4
CR A
CR A
CR A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CN2
2.0 16P
LOGIC LOGIC
+VCC
VCC
GND
PGND
(TO AMX 220FXPU2)
+VCC
VCC
GND
PGND
PH LED PH LED
1
2
3
4
5
6
7
8
CN3
2 0 8P
R60
5K1
R59
5K6
R62
5K1
R61
5K6
R64
5K1
R63
5K6
R66
5K1
R65
5K6
R68
5K1
R67
5K6
R70
5K1
R69
5K6
R72
5K1
R71
5K6
R74
5K1
R73
5K6
CH1
CH2
1
2
3
4
5
CN4
2 0 5P
CH1
CH2
LEFT BUS
RIGHT BUS
CH1
CH2
LEFT BUS
RIGHT BUS
+5V
+5V
- 10 -

1 2 3 4 5 6 78
A
B
C
D
8
7654321
D
C
B
A
C 329
22P
C 345
1.5nF 2 5%
5
6
7
U 44B
4580M
R 399
10K
R 420
100R
R 422
3K 3 R 397
10K
R 398
10K
3
2
1
U 44A
4580M
R 400
10K
C 331
22P
C 347
15nF 2 5%
5
6
7
U 45B
4580M
R 406
10K
R 421
100R
R 423
3K 3 R 402
10K
R 405
10K
3
2
1
U 45A
4580M
R 408
10K
5
6
7
U 46B
4580M
3
2
1
U 46A
4580M
C 346
15nF 2 5% R 404 10K
R 403
10K
C 332
22P
R 407
10K
C 330
22P
R 424
2K 2
R 401
10K
(MUTE)
(MUTE)
CLK 4
J2
S
5
R
1
Q
6
Q
7K3
U 48A
74H C 109
+5V D R 413
10K
D7
B A S 316
12
U 49A
74HC14
C 352
1uF
DGND
+5V D
R 414
10K
D15
B A S 316
C 353
1uF
DGND
R 410
10K
R 426
220R
R 419
7K 5
84
U 44C
4580M
84
U 46C
4580M
84
U 45C
4580M
C 336
100N
C 337
100N
C 338
100N
C 339
100N
+V C C
VCC
3 4
U 49B
74HC14
5 6
U 49C
74HC14
8 9
U 49D
74HC14
12 13
U 49F
74HC14
147
U 49G
74HC14
DGND
CLK 12
J14
S
1
R
15
Q
10
Q
9K13
U 48B
74H C 109
DGND
168
U 48C
74H C 109 C 341
100N
C 340
100N
+5V D
DGND
C 351
10uF
DSP-PRE
DGND
3
2
1
U 47A
LM 393
5
6
7
U 47B
LM 393
R 416
4K 7
+V C C
R 418
1K
C 334
100N
R 417
1M R 425
2M 2
R 431
820K
D 10A
R B 400D
PEAK(FLICKER)
MUTE GLOW )
84
U 47C
LM 393
TR17
3904
DGND
R 411
10K
R 412
10K
DGND
OUT
3RS 4
TG 2
TH 6
CTR
5
DS
7
U 43A
N E 555
C 333
100N
DGND
+5V D
R 415
47K
C 350
10uF
DGND
81
U 43B
N E 555
C 349
33P
C 348
33P
D16
D A 202K
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CN1
CN1-2.0-16P
GND
+V C C
VCC
NetC 342 1
NetC 344 1
NetT R 16 C
+5V D
NetC N 6 16
NetU 49 1
NetC 343 1
PG N D
DGND
NetL D 54 2
NetC 332 2
NetR 408 2
NetR 400 2
ZD1
2.4V ZD2 2.4V
R 409
10K
TR16
3904
DGNDDGND
R1
0R
- 11 -

1 2 34
A
B
C
D
4
321
D
C
B
A
D+
1
D-
2
VBUS
3
DGND
4
HID0
5
HID1
6
HID2
7
SEL0
8
SEL1
9
VCCCI
10
AGNDC
11
VINL
12
VINR
13
VCOM
14 VOUTR 15
VOUTL 16
VCCP1I 17
AGNDP 18
VCCP2I 19
XTO 20
XTI 21
AGNDX 22
VCCXI 23
DIN24
DOUT 25
DGND 26
VDDI 27
SSPD N 28
U1
PCM2902
1 2
R4 22R
R3 22R
R5
1K5
USB_GND
DGND
C6 10uF
C5 10uF
AGND
C4 10uF
C3 10uF
C13 1uF
C12 1uF
C11 1uF
X1
12MHz
C8
22P
DGND DGND
C9
22P
C10 1uF
DGND
DGND
C2 10uF
C1 10uF
C7
100uF
R2
0R
+5V
USB_GND
R6 10M
AGND
USB_GND
VINL
VINR
VOUTL
VOUTR
AM X-USB
R9
10R
R7
1K5
C26
1n
3
2
1
U2A
4580M
R14
3K9
C24
4.7nF
R12
12K
R10
4K7 C20 10uF
C14
330P
AGND AGND
R18
100R
R8
1K5
C27
1n
5
6
7
U2B
4580M
R15
3K9
C25
4.7nF
R13
12K
R11
4K7 C21 10uF
C16
330P
AGND AGND
R19
100R
1
2
3
4
5
6
7
8
9
10
11
12
CN1
CON12
D-
D+
+5V
C28
220P
3
2
1
U3A
4580M
R24
18K
C29
220P
5
6
7
U3B
4580M
R25
18K
R16
3K9
R17
3K9
R22
27K
R23
27K
C18
1.8nF
AGND
C15
1.8nF
AGND
R20
100R
R21
100R
C19
330P
AGND
C17
330P
AGND
C23
10uF
C22
10uF
+V CC
-VCC
C30
100n
C32
100n
+V CC
-VCC
C31
100n
C33
100n
84
U2C
4580M
84
U3C
4580M
AGND
AGND
IN
IN
GG
OUT OUT
TR1
A 1117
C34
100n
R26
3K16
R1
1K82
3.6V ~3.8V
DGND
L1
BLM21
C35
100n
USB_GND
- 12 -

1 2 3 4 5 6 78
A
B
C
D
8
7654321
D
C
B
A
AMX-220FX USB
AC IN
18V A C ~

PC B A M X220FX M N 2-USB

PC B A M X220FX PU 2-USB

PC B A M X220FX M N 1-USB

PC B A M X220FX PU 1-USB

CN1 CN3
SW 10
CN4
CN2CN1
CN8
CN3
CN1
CN3
CN2
CN1
CN2 CN4
CN7 CN3 CN5
SW 9

CN4
A C 18V /1300m A
AC 120V/60H z
AC 230V/50H z
INPUT
OUTPUT
PHANTOM SW
5. WIRING DIAGRAM
- 13 -

6
. P
C
B LAY
OU
T
- 14 -



- 1
5
-

 
- 1
6
-


- 17 -

󲓱



- 1
8
-