How it Works
Alto
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APM-120
Service Manual
63 pgs4.9 Mb0
Users Manual
27 pgs1.83 Mb0

Alto APM-120 Service Manual

CONTENT
1. INTRODUCTION……………………………………………………………………………..1
2. TECHNICAL SPECIFICATION……………………………………………………………..3
3. BLOCK DIAGRAM……………………………………………………………....................5
4. SCHEMATIC DIAGRAM…………………………………………………………………….7
5. WIRING DIAGRAM………………………………………………………………………….11
6. PCB LAYOUT………………………………………………………………………………..13
8. EXPLODED VIEW & MECHANICAL PARTS LIST……………………………………..29
9. BOM…………………………………………………………………………………………..33
1. INTRODUCTION
APM120
- 8 MONO Inputs with gold plated XLR and balanced TRS JACK.
- GAIN and +48V Phantom power for mono/mic inputs.
- 2 Stereo Inputs with balanced TRS Jacks.
- Peak LED in each Channel.
- 3-band EQ with sweepable MID on mono inputs.
- 4-band EQ on stereo inputs
- 24-bit internal DSP with 256 effects, 16 preset by 16 variations.
With DSP mute switch and peak LED.
- Graphic Equalizer: 9 band (63, 125, 250, 500,1k, 2k, 4k, 8k, 16k Hz)
- BNC socket for connecting gooseneck lamps.
- Low cut filters-75Hz, 18dB/OCT on mono inputs.
- Low pass filter on mono output (80~120Hz).
- 4 AUX sends (AUX 1.2 pre/post, AUX 3.4 post).
- Foot switch digital effect on/off.
- Highly accurate 12 segment Bar graph Meters.
- Maximum Output Power: 500W+500W/4ohms. (1000 bridge/8ohms).
- Performance and excellent noise figures.
- Manufactured under ISO9001 certified management system.
APM160
- 12 MONO Inputs with gold plated XLR and balanced TRS JACK.
- GAIN and +48 Phantom power for mono/mic inputs.
- 2 Stereo Inputs with balanced TRS Jacks.
- Peak LED in each Channel.
- 3-band EQ with sweepable MID on mono inputs.
- 4-band EQ on stereo inputs.
- 24-bit internal DSP with 256 effects, 16 preset by 16 variations.
With DSP mute switch and peak LED.
- Graphic Equalizer: 9 band (63, 125, 250, 500, 1k, 2k, 4k, 8k, 16k Hz)
- BNC socket for connecting gooseneck lamps.
- Low cut filters-75Hz, 18dB/OCT on mono inputs.
- Low pass filter on mono output (80~120Hz).
- 4 AUX sends (AUX1, 2 pre/post, AUX3, 4 post)
- Foot switch digital effect on/off.
- Highly accurate 12 segment Bar graph Meters.
- Maximum Output Power: 750W+750W/4ohms. (1500W bridge/8ohms).
- Performance and excellent noise figures.
- Manufactured under ISO9001 certified management system.
Input
Input Impedance Mic 2kohm Balanced
Line 10kohm Balanced
Input Gain Mic Continuously variable from 0dB to +45dB
Input Gain Line-Mono Channel Continuously variable from -15dB to 30dB
Input gain Line-Stereo Channel Continuously variable from -20dB to +20dB
Maximum Input Level Mic +22dBu
Line (Mono Channel) +22dBu
Line (Stereo Channel) +22dBu
Insert send impedance 100ohm Unbalanced
Insert send level/Max -10dBu/+22dBu
Insert return impedance 10kohm Unbalanced
Insert return level /Max -10dBu/+22dBu
CMR at 1kHz Line(20Hz-20kHz) >80dB
Frequency response Mic to Mix 20Hz-20kHz +0/-1dB
Signal/Noise Ratio (20Hz-20kHz) Mic EIN ref. 150ohms-101dBu (gain+60dB)
System Noise (20Hz-20kHz)
Summing Noise -85dBu (16 channels routed with faders down)
Line to Mix Noise -83dBu (16channels routed at 0dB, pan centre)
Distortion at 1kHz Mic to Insert (+30dB unity gain, +20dBu output)<0.01%
Mic to Mix (+30dB unity gain, +20dBu output) Typ 0.03%)
Crosstalk at 1kHz channel to channel >-75dB
Mix to Mix >-78dB
Channel to Mix >-80dB
Fader Attenuation >100dB
Output (Nominal Signal Level Mic -60dBu to 0dBu –Line 0dBu)
Output Impedance All Line Outputs 100ohm Balanced
Insert send impedance 100ohm Unbalanced
Insert send level/Max. +22dBu
Insert return impedance 10kohm Unbalanced
Insert return level/Max. +22dBu
Maximum Output level Master Outputs on XLR +22dBu
All other Outputs on XLR +22dBu
All Outputs on 1/4 inch jacks +22dBu
headphones +22dBu/600ohm
Equalizer- Mono Channel
Treble -shelving +15/-15dB @12kHz
MID –peak/clip +15/-15dB – frequency range 100Hz~8kHz bandwidth 1 octave
Bass –shelving +15/-15dB @80Hz
Hi Pass Filter 18dB/oct @75Hz
Equalizer –Stereo Channel
Treble –shelving +15/-15dB @12kHz
Hi Mid –shelving +15/-15dB @3kHz
Lo Mid –shelving +15/-15dB @400Hz
Bass -shelving +15/-15dB @80Hz
DSP Section
Mode Stereo Bridged
APM120 2*500 Watts EIAJ (4ohms) 1*1000 Watts EIAJ (8ohms)
A/D and D/A converters 24 bit
DSP resolution 24 bit
Type of effects
Presets 256
Controls
Hall, Room, Vocal & Plate REVERBS
Mono &Stereo DELAY (max DELAY TIME 650ms)
Chorus, Flanger & Reverb MODULATIONS
REVERB+DELAY, REVERB+CHORUS
REVERB+FLANGER combinations
16-position PRESET Selector
16-position VARIATION Selector
PEAK LED
MUTE SWITCH with LED indicator
Power AMP
APM160 2*750 Watts EIAJ (4ohms) 1*1500 Watts EIAJ (8ohms)
D
C
B
A
12
1110987654321
LEFT
ST SUB OUT
LEFT
RIGHT
ST OUT
RIGHT
LEFT METER
3c5e1a4d2b
RIGHT METER
P. AMP INSERT
BA
BA
BA
BA
SPEAKERS
L
R
(ON / OFF)
POWER AMP
3c5e1a4d2b
LEFT
RIGHT
SIGNAL SELECT
INV
AUX1
MAIN L
MONO
MAIN R
MONO BRIDGE
MONO BRIDGE
APM120 BLOCK DIAGRAM
ST SUB OUT
EQ(ON/OFF)
ST OUT
LEFT
MONO OUT
AUX SEND1
AUX SEND2
AUX SEND3
EFFECT SEND
PHONES
RIGHT
2TK IN
6KHz
8KHz
4KHz
2KHz
LEFT
RIGHT
9-BAND EQ
2TK OUT
SUM
PFL R / AFL R PFL L / AFL L
AUX-4(EFFECT) AUX-3 AUX-2 AUX-1 RIGHT-BUS LEFT-BUS
RIGHT-BUS
LEFT-BUS
AUX-1
PAN
AUX1
1KHz
9-BAND EQ
500Hz
250Hz
12 Hz
63Hz
PEL
SUM
PFL L
AUX-3
AUX-4
AUX-2
AUX2
AUX3
PFL R
AUX4
AFL
LEFT-BUS
MONO OUT
PFL
LPF
80-120Hz
12db oct
SUM
BALANCE
AUX1
(FREQ)
AFL
AUX-1
RIGHT-BUS
AUX1
AUX
AUX2
AFL
AUX-2
AUX-3
AUX-4
AUX3
AUX4
AUX3
PHONES
2TK
AFL
PFL L
PFL R
AFL
LEFT-BUS
RIGHT-BUS
ST
AUX1
AUX2
AUX3
LEVEL
EFFECT RTN
PEL
AUX1
AUX2
AUX3
PEAK
MID
LO (FREQ) HI
LEVEL SET
FADER LEVEL
ON
2
LO CUT
1
12K100Hz-8kHz80
BA
4-BAND EQ
3
75Hz
+/-15db
HI PASS
POST
RSRN
3c5e1a4d2b
PRE
BA
+/-15db
4-BAND EQ
POST
PRE
POST
PRE
PEL
PEL
IN
MUTE
DSP FOOTSWITCH
RSRN
3c5e1a4d2b
-
+
T
TN
-
+
T
RSRN
TN
3c5e1a4d2b
X8
JY 6351G 02 250
X9
JY 6351G 02 250
DSP BOARD
PRESETS
VARIATIONS
PEL
ST SUB IN (1-3)
POST
PRE
BA
PFL
FADER LEVEL
ON
T
TN
INSERT
12K50080 3K
+/-15db
LO M-H HIL-M
4-BAND EQ
LEVEL SET PEAK
12K50080 3K
GAIN
+
+48V
POWER
PHANTOM
D
-
213
MIC IN
(-16~-60dB)
(+10~-34dB)
MONO INPUT CHANNELS ( 1-8)
GAIN
(+10~-34dB)
-
+
T
RSRN
TN
3c5e1a4d2b
MIC GAIN:0~60dB
LINE IN
LINE IN TRIM:+15dB~-45dB
STEREO INPUT CHANNELS (9-12)
-
+
T
RSRN
TN
3c5e1a4d2b
LEFT(MONO)
RIGHT
C
B
A
1 2 3 4 5 6 7 8 9 10 11 12
D
C
B
A
12
1110987654321
LEFT
ST SUB OUT
LEFT
RIGHT
ST OUT
RIGHT
LEFT METER
3c5e1a4d2b
RIGHT METER
P. AMP INSERT
BA
BA
BA
BA
SPEAKERS
L
R
(ON / OFF)
POWER AMP
3c5e1a4d2b
LEFT
RIGHT
SIGNAL SELECT
INV
AUX1
MAIN L
MONO
MAIN R
MONO BRIDGE
MONO BRIDGE
APM160 BLOCK DIAGRAM
ST SUB OUT
EQ(ON/OFF)
ST OUT
LEFT
MONO OUT
AUX SEND1
AUX SEND2
AUX SEND3
EFFECT SEND
PHONES
RIGHT
2TK IN
16KHz
8KHz
4KHz
2KHz
LEFT
RIGHT
9-BAND EQ
2TK OUT
SUM
PFL R / AFL R PFL L / AFL L
AUX-4(EFFECT) AUX-3 AUX-2 AUX-1 RIGHT-BUS LEFT-BUS
RIGHT-BUS
LEFT-BUS
AUX-1
PAN
AUX1
KHz
9-BAND EQ
500Hz
250Hz
125Hz
63Hz
PEL
SUM
PFL L
AUX-3
AUX-4
AUX-2
AUX2
AUX3
PFL R
AUX4
AFL
LEFT-BUS
MONO OUT
PFL
LPF
80-120Hz
12db oct
SUM
BALANCE
AUX1
(FREQ)
AFL
AUX-1
RIGHT-BUS
AUX1
AUX2
AUX2
AFL
AUX-2
AUX-3
AUX-4
AUX3
AUX4
AUX3
PHONES
2TK
AFL
PFL L
PFL R
AFL
LEFT-BUS
RIGHT-BUS
ST
AUX1
AUX2
AUX3
LEVEL
EFFECT RTN
PEL
AUX1
AUX2
AUX3
PEAK
MID
LO (FREQ) HI
LEVEL SET
FADER LEVEL
ON
2
LO CUT
1
12K100Hz-8kHz80
BA
4-BAND EQ
3
75Hz
+/-15db
HI PASS
POST
RSRN
3c5e1a4d2b
PRE
BA
+/-15db
4-BAND EQ
POST
PRE
POST
PRE
PEL
PEL
IN
MUTE
DSP FOOTSWITCH
RSRN
3c5e1a4d2b
-
+
T
TN
-
+
T
RSRN
TN
3c5e1a4d2b
X8
JY 6351G 02 250
X9
JY 6351G 02 250
DSP BOARD
PRESETS
VARIATIONS
PEL
ST SUB IN (1-3)
POST
PRE
BA
PFL
FADER LEVEL
ON
T
TN
INSERT
12K50080 3K
+/-15db
LO M-H HIL-M
4-BAND EQ
LEVEL SET PEAK
12K50080 3K
GAIN
(-16~-60dB)
+
+48V
POWER
PHANTOM
D
-
213
MIC IN
(+10~-34dB)
MONO INPUT CHANNELS ( 1-12)
GAIN
(+10~-34dB)
-
+
T
RSRN
TN
3c5e1a4d2b
MIC GAIN:0~60dB
LINE IN
LINE IN TRIM:+15dB~-45dB
STEREO INPUT CHANNELS (13-16)
-
+
T
RSRN
TN
3c5e1a4d2b
LEFT(MONO)
RIGHT
C
B
A
1 2 3 4 5 6 7 8 9 10 11 12
B
LD17
LD11
GRN
LD12
YEL
LD13
GRN
LD14
YEL
LD15
GRN
6
SW5B
PS-22E85L
4
6
4
6
SW10B
SW7B
PS-22E85L
5
5
4
PS-22E85L
4
6
PS-22E85L
4
SW15B
PS-22E85L
5
6
SW12B
5
GRN
LD16
YEL
4
6
6
SW20B
SW17B
PS-22E85L
PS-22E85L
5
5
Q1
BC337
D17
4148
R89
20K
+17V
AUX GND
LEFT BUS
RIGHT BUS
LEFT-BUS
RIGHT-BUS
1011121314151617181920
C
LD10
AUX1
AUX2
AUX3
AUX4
17V
+17V
AUX1
AUX2
AUX3
AUX
1234567
8
CN3
CN2
HEADER 10
HEADER 4
YEL
+17V
/PFL
MUTE
4
4
6
PS-22E85L
SW2B
5
5
D
123
4
CN1
HEADER 2
A/PFL L
20K
8V
12
R440
1
3
C153
100uF/63V
2
SW33
SW-2WAY
R234
PH PWR
10K0
PGND
LD9
RED
A/PFL R
A/PFL L
A/PFL R
123456789
A
R235
100R
17V
D18
4148
17V
AUX1
AUX1
AUX2
AUX3
LEFT BUS
1110987654321
APM MONO BOARD(1/1)
RIGHT BUS
LEFT-BUS
RIGHT-BUS
R139
27K
R140
27K
VR7
B5K
AUX2
AUX3 EXT
AUX1
VR8
AUX SEND
AUX2
W50K
VR9
W50K
PAN
R145
17K4
R146
2
1
3
LEVEL
R107
1K50
R99
R210
47K0
R141
20K
1
2
R136
4n7(M)
R134
6K8
7
5
6
INSERT1
3c5e1a4d2b
RSRN
SW1A
PS-22E85L
0.22u/50V
C38
22P
27R
R41
+17V 17V
PH PWR
AUX GND
SW4B
PS-22E85L
LD5
6K8
3
6K8
U3B
R126
10K0
TN
456
R77
6K8
C58
0.22u/50V
5K11
R46
D4
D2
R18
6K81 1/4W
4
RED
U3A
VR5A
4580M
T
6
4148
4148
C22
AUX2
5
6
4580M
C121
500KC
C94
C93
R73
1K3
7
5
1000u/10V
C33
47uF/50V
17K4
2n7(M)
R135
33n(M)
33n(M)
P
C70
VR5B
R61
U1B
C14
SW4A
PEAK
TR4
R206
6K8
500KC
X6
SW1B
47uF/25V
6
C57
10K0
4580M
22uF/35V
AUX GND
2
PS-22E85L
1
3904
5K1
MID (FREQ=100Hz-8K)
R115
5K6
VR2
B50K
R114
5K6
JY-6351G-02-250
PS-22E85L
7
U2B
5
0.22u/50V
R34
R26
11K0
R148
3
TR3
3904
LO (80Hz)
R82
4580M
R69
3K60
R10
17K4
PFL
20K
62K
51K1
R106
R98
+17V
1K50
6K8
C41
22P
R214
5K1
SW2A
MUTE
LD1
YEL
LEVEL SET
C39
U1A
R25
11K0
C13
22uF/35V
R219
PS-22E85L
1
TR2
3904
R90
22K
C69
47uF/25V
U2A
4580M
3
22P
R47
R62
4580M
3
5K11
10K0
R226
2K7
R227
2K7
AUX1
5
SW3A
PS-22E85L
SW3B
PS-22E85L
4
6
C74
1
47uF/25V
U4A
4580M
12K
R218
15K0
3
2
C73
47uF/25V
VR6A
D10K
2
3
+17V
C72
47uF/25V
R137
6K8
C110
22P
VR4
B50K
MID
C117
R130
1M0
C109
22P
C102
6n8(M)
R122
3K90
VR3
B50K
EQ HI (12K)
C101
6n8(M)
C71
47uF/25V
PGND
TR1
3904
RTN-CH1
R94
68K
123
LO CUT
R81
20K
1
2
1
2
C21
C59
R48
5K11
22P
C40
R45
C37
22P
5K11
VR1
O10K
D3
4148
D1
4148
+17V 17V
C29
47P
R33
3K60
47uF/50V
R17
6K81 1/4W
C3
470P
AUX4
AUX4 INT
AUX3
AUX
VR10
W50K
VR11
W50K
R149
17K4
AUX GND
AUX GND
A/PFL L
A/PFL R
A/PFL L
R150
5K1
R151
5K1
2
SW5A
PS-22E85L
1
3
PGND
C46
A/PFL R
R215
22P
5K1
MUTE
SW7A
R221
PS-22E85L
1
LEFT BUS
LEFT-BUS
R152
27K
R153
VR18
B5K
PAN
R228
2K7
R229
5
SW8B
PS-22E85L
4
C80
7
47uF/25V
U4B
4580M
12K
R220
5
6
C79
47uF/25V
VR17A
D10K
2
3
C78
47uF/25V
C112
VR16
B50K
MID
C111
22P
C104
6n8(M)
VR14
B50K
EQ HI (12K)
C103
6n8(M)
R100
R108
+17V
1K50
6K8
LD2
YEL
LEVEL SET
TR6
R91
C75
U6A
C44
U5A
R27
11K0
C15
22uF/35V
3904
22K
47uF/25V
4580M
3
22P
R51
5K11
R64
10K0
4580M
3
C77
PGND
TR5
3904
R95
68K
123
LO CUT
R83
20K
1
R52
5K11
2
R49
C42
1
5K11
2
O10K
VR12
D7
4148
D5
4148
+17V 17V
R35
3K60
C23
47uF/50V
C6
470P
RIGHT BUS
RIGHT-BUS
27K
2K7
6
AUX1
15K0
+17V
R177
6K8
22P
R131
R123
47uF/25V
RTN-CH2
C45
22P
C30
47P
R19
6K81 1/4W
R158
SW8A
PS-22E85L
LEVEL
R211
R142
R159
C118
4n7(M)
R138
1M0
6
3K90
SW6A
C62
0.22u/50V
22P
C43
R42
+17V 17V
PH PWR
17K4
2
1
R109
1K50
R101
47K0
20K
1
2
6K8
7
5
INSERT2
3c5e1a4d2b
RSRN
PS-22E85L
22P
27R
AUX1
AUX1
AUX1
AUX GND
SW9B
3
6K8
U7A
3
6K8
U7B
R127
10K0
TN
456
R78
6K8
C61
0.22u/50V
5K11
R50
D8
4148
D6
4148
R20
6K81 1/4W
VR19
PS-22E85L
LD6
4580M
VR15A
4580M
T
R74
6
C34
C24
W50K
R160
5
4
RED
C122
2n7(M)
R147
500KC
C96
33n(M)
C95
33n(M)
C76
1K3
7
5
1000u/10V
47uF/50V
17K4
6
AUX2
6K8
VR15B
500KC
X8
P
SW6B
47uF/25V
6
R63
10K0
U5B
C16
22uF/35V
AUX2
AUX2
SW9A
PEAK
TR8
3904
R207
5K1
R117
VR13
R116
JY-6351G-02-250
PS-22E85L
7
5
0.22u/50V
C60
4580M
AUX2
VR20
AUX GND
PS-22E85L
1
MID (FREQ=100Hz-8K)
5K6
B50K
5K6
U6B
R36
R28
11K0
AUX SEND
W50K
R161
17K4
2
3
TR7
3904
LO (80Hz)
R84
20K
4580M
R70
62K
3K60
R12
51K1
AUX3
AUX3 EXT
AUX3
VR21
AUX GND
SW10A
PFL
PGND
W50K
R162
R163
5K1
PS-22E85L
1
17K4
A/PFL L
A/PFL L
2
AUX4 INT
AUX
A/PFL R
R164
5K1
3
AUX4
VR22
W50K
AUX GND
A/PFL R
C51
R216
22P
5K1
MUTE
SW12A
R223
PS-22E85L
1
LEFT BUS
LEFT-BUS
R165
27K
R166
VR29
B5K
PAN
R230
2K7
5
SW13B
PS-22E85L
4
C85
1
47uF/25V
U8A
4580M
12K
R222
3
2
C84
47uF/25V
VR28A
D10K
2
3
C83
47uF/25V
C115
VR27
B50K
MID
C113
22P
C107
6n8(M)
VR25
B50K
EQ HI (12K)
C105
6n8(M)
+17V
LD3
YEL
R110
1K50
TR10
R102
6K8
R92
C81
U10A
C49
22P
R55
R65
U9A
4580M
R29
11K0
C17
22uF/35V
LEVEL SET
3904
TR9
3904
22K
R85
20K
47uF/25V
1
4580M
R56
3
2
5K11
10K0
1
3
2
D11
4148
D9
4148
R37
C25
47uF/50V
R96
LO CUT
5K11
R53
3K60
PGND
68K
123
5K11
VR23
O10K
+17V 17V
C8
C82
C47
470P
RIGHT BUS
RIGHT-BUS
27K
R231
6
AUX1
15K0
+17V
R193
6K8
22P
R132
R124
47uF/25V
RTN-CH3
C50
22P
C31
47P
R21
6K81 1/4W
2K7
SW13A
PS-22E85L
LEVEL
R212
C119
4n7(M)
1M0
6
3K90
SW11A
C64
0.22u/50V
22P
C48
R43
+17V 17V
PH PWR
R171
17K4
2
1
R111
1K50
R103
47K0
R143
20K
1
2
R192
R190
6K8
7
5
INSERT3
3c5e1a4d2b
RSRN
PS-22E85L
22P
27R
AUX1
AUX1
SW14B
3
6K8
3
6K8
U11B
R128
10K0
TN
456
R79
6K8
C63
0.22u/50V
5K11
R54
D12
D10
R22
6K81 1/4W
AUX1
AUX GND
LD7
U11A
VR26A
4580M
T
6
4148
4148
C26
VR30
W50K
PS-22E85L
4
RED
4580M
C123
500KC
C98
C97
R75
1K3
7
C35
47uF/50V
R172
17K4
5
6
PEAK
TR12
R208
2n7(M)
R191
6K8
VR26B
500KC
33n(M)
33n(M)
X10
P
SW11B
C86
47uF/25V
6
C65
R66
10K0
U9B
4580M
5
1000u/10V
C18
22uF/35V
AUX2
AUX2
AUX2
AUX GND
SW14A
PS-22E85L
1
3904
5K1
R119
5K6
VR24
B50K
R118
5K6
JY-6351G-02-250
PS-22E85L
7
5
0.22u/50V
R38
R30
AUX SEND
VR31
W50K
R173
2
3
TR11
3904
MID (FREQ=100Hz-8K)
LO (80Hz)
R86
20K
U10B
4580M
R71
62K
3K60
11K0
R14
51K1
17K4
AUX3
AUX3 EXT
AUX3
VR32
AUX GND
SW15A
PFL
PGND
W50K
R174
R175
5K1
PS-22E85L
1
17K4
A/PFL L
A/PFL L
2
AUX4 INT
R176
5K1
3
AUX
A/PFL R
AUX4
VR33
W50K
AUX GND
A/PFL R
C56
R217
22P
5K1
MUTE
SW17A
R225
PS-22E85L
1
12K
2
R178
PAN
R232
C92
6
VR39A
3
LEFT BUS
LEFT-BUS
27K
R179
VR40
B5K
2K7
R233
5
SW18B
PS-22E85L
4
7
47uF/25V
U8B
4580M
R224
5
C91
47uF/25V
D10K
+17V
C90
47uF/25V
R197
C116
22P
VR38
B50K
MID
R133
C114
22P
C108
6n8(M)
VR36
B50K
EQ HI (12K)
C106
6n8(M)
+17V
LD4
YEL
R112
1K50
TR14
R104
6K8
R93
C87
U13A
C54
U12A
R31
11K0
C19
22uF/35V
LEVEL SET
3904
TR13
3904
22K
R87
47uF/25V
1
4580M
R60
3
2
22P
R59
5K11
R68
10K0
1
4580M
3
2
D15
4148
D13
4148
R39
C27
47uF/50V
R97
LO CUT
20K
5K11
R57
3K60
PGND
68K
123
5K11
+17V 17V
C12
470P
C89
47uF/25V
C52
22P
O10K
VR34
C32
R23
RIGHT BUS
RIGHT-BUS
27K
2K7
SW18A
6
AUX1
15K0
LEVEL
R213
R144
6K8
R196
C120
4n7(M)
R194
1M0
6
R125
3K90
RTN-CH
SW16A
C68
0.22u/50V
22P
C55
C53
R44
+17V 17V
47P
6K81 1/4W
PH PWR
R184
PS-22E85L
R113
R105
47K0
20K
2
6K8
7
INSERT4
PS-22E85L
22P
27R
17K4
2
1
1K50
6K8
1
3
6K8
5
R129
10K0
3c5e1a4d2b
RSRN
456
R80
6K8
C67
R58
D16
D14
R24
6K81 1/4W
AUX1
AUX1
AUX1
VR41
AUX GND
SW19B
PS-22E85L
3
LD8
RED
U14A
4580M
C124
VR37A
500KC
U14B
4580M
C100
C99
T
TN
0.22u/50V R76
1K3
5K11
7
6
C36
4148
4148
C28
47uF/50V
W50K
R185
17K4
5
4
6
AUX2
PEAK
TR16
R209
2n7(M)
R195
6K8
VR37B
500KC
33n(M)
33n(M)
X12
P
SW16B
C88
47uF/25V
6
C66
R67
10K0
U12B
4580M
5
1000u/10V
C20
22uF/35V
AUX2
AUX2
SW19A
3904
5K1
R121
5K6
VR35
B50K
R120
5K6
JY-6351G-02-250
PS-22E85L
7
5
0.22u/50V
R32
AUX2
VR42
AUX GND
PS-22E85L
1
TR15
MID (FREQ=100Hz-8K)
LO (80Hz)
R88
U13B
4580M
R72
R40
3K60
11K0
R16
AUX SEND
W50K
R186
17K4
2
3
PGND
3904
20K
62K
51K1
AUX3
AUX3 EXT
AUX3
VR43
W50K
AUX GND
R188
PFL
SW20A
PS-22E85L
1
R187
A/PFL L
5K1
2
AUX4 INT
17K4
A/PFL L
R189
3
C151
C149
C147
C145
C143
C141
C139
C137
C135
C133
C131
C129
C127
C125
AUX4
AUX
VR44
W50K
AUX GND
A/PFL R
A/PFL R
5K1
100n
84
100n
84
100n
84
100n
84
100n
84
100n
84
100n
84
100n
84
100n
84
100n
84
100n
84
100n
84
100n
84
100n
84
+17V
U14C
U13C
U12C
U11C
U10C
U9C
U8C
U7C
U6C
U5C
U4C
U3C
U2C
U1C
4580M
4580M
4580M
4580M
4580M
4580M
4580M
4580M
4580M
4580M
4580M
4580M
4580M
4580M
C152
100n
C150
100n
C148
100n
C146
100n
C144
100n
C142
100n
C140
100n
C138
100n
C136
100n
C134
100n
C132
100n
C130
100n
C128
100n
C126
100n
17V
51K1
R9
R2
47R
R1
C1
470P
47R
213
4
X1
SMC-6.02
MIC 1
C2
470P
3c5e1a4d2b
X5
JY-6351G-02-250
LINE IN1
LINE IN GAIN +10~-40dB
MIC GAIN -10~-60dB
D
R4
47R
R3
C4
470P
47R
213
4
MIC 2
3c
2b
X2
SMC-6.02
LINE IN2
51K1
R11
C5
470P
5ea4d
X7
JY-6351G-02-250
LINE IN GAIN +10~-40dB
MIC GAIN -10~-60dB
C
R6
47R
R5
C7
470P
47R
213
4
MIC 3
3c
2b
X3
SMC-6.02
LINE IN3
51K1
R13
C9
470P
5ea4d
X9
JY-6351G-02-250
LINE IN GAIN +10~-40dB
MIC GAIN -10~-60dB
B
R8
47R
R7
47R
470P
C10
213
4
MIC 4
3c5e1a4d2b
X4
SMC-6.02
LINE IN4
51K1
R15
C11
470P
X11
JY-6351G-02-250
LINE IN GAIN +10~-40dB
MIC GAIN -10~-60dB
A
1 2 3 4 5 6 7 8 9 10 11 12
R321
D2
LL4148D3LL4148
100R
A
-17V
-17V
D
12
111098765321
C
LD12
7
9
8
MUTE
LD5
17V
7
9
8
B
LD18
GRN
LD13
GRN
LD14
GRN
LD15
GRN
LD16
GRN
6
7
9
SW41B
SW39C
SW38C
PS-42E85L
8
YEL
LD6
GRN
7
9
SW25C
PS-42E85L
8
PS-22E85L
PS-42E85L
5
LD7
YEL
7
9
SW29C
SW26C
PS-42E85L
PS-42E85L
8
6
6
SW45B
SW44B
PS-22E85L
PS-22E85L
5
5
LD8
GRN
LD9
GRN
7
9
SW30C
8
7
PS-42E85L
7
9
SW33C
PS-42E85L
8
GRN
LD17
GRN
7
9
6
SW47C
SW46B
PS-42E85L
PS-22E85L
8
5
LD19
LD10
GRN
9
7
SW34C
PS-42E85L
8
GRN
LD11
GRN
7
9
9
SW36C
SW35C
PS-42E85L
PS-42E85L
8
8
Q1
BC337
R73
20K
17V
APM STEREO BOARD(1/3)
A/PFL L
R257
SW36A
6
3
RIGHT-BUS
R301
10K
10K
10K
C105
22PF
10K 1%
RIGHT
PS-42E85L
1
47uF/25V
R39
A/PFL L
5K1
2
17K4
3
C168
R484
10K
2TK IN
2TK-IN-L
VR79A
W50K
R287 17K4
10K 1%
C20
22P
SW34A
7
R34
47uF/35V
R258
PFL
R304
VR77
W50K
R255
5K1
PS-42E85L
20K
R70
5
10K 1%
X10
90 STEREO JACK
5K1
AUX2
AUX2
AUX GND
A/PFL L
A/PFL L
2
U31B
A/PFL R
A/PFL R
5
6
2
10K
C106
3
4580M
SW36B
C109
47uF/25V
R288 17K4
R37
C37
PS-42E85L
47uF/25V
1
3
2TK-IN-R
VR78
W50K
R256
5K1
PFL
10K 1%
22PF
AUX3
AUX3
AUX GND
A PFL R
A/PFL R
5
U33A
R234
C233
6
R307
4580M
R487
10K
100P
SW34B
RIGHT-BUS
RIGHT-BUS
17K4
R71
10K
PS-42E85L
VR84A
W50K
20K
APM-120
APM STEREO BOARD S02
APM-120
APM STEREO BOARD S01
C196
100n
100n
C195
8
4580M
U33C
100n
C194
100n
C193
8
4580M
U32C
100n
C192
100n
C191
8
4580M
U31C
100n
C190
100n
C189
8
4580M
U30C
100n
C188
100n
C187
8
4580M
U29C
100n
C186
100n
C185
8
4580M
U28C
100n
C184
100n
C183
8
4580M
U27C
100n
C182
100n
C181
8
4580M
U26C
100n
C180
100n
C179
8
4580M
U25C
100n
C178
100n
C177
8
4580M
U24C
100n
C176
100n
C175
8
4580M
U23C
100n
C174
100n
C173
8
4580M
U22C
100n
C172
100n
C171
8
4580M
U21C
100n
C170
100n
C169
8
4580M
U20C
17V
-17V
1 2 3 5 6 7 8 9 10 11 12
C48
R230
C155
EQ HI (12KHz)
VR51A
22P
5K1
B50K
LEFT-BUS
AUX1
AUX2
AUX3
AUX1
17K4
10K
10K
R92
3.3n(M)
C84
R3
2
27K
22PF
CH 9/10
AUX1
SW28B
3
5
10K
R169
R167
C44
47uF/25V
7
6
10K 1%
RIGHT
AUX GND
1K8
1K8
22P
R7
VR57
W50K
PS-22E85L
47uF/25V
C89
6
C46
10K
R90
R62
U21B
4580M
5
VR50B
R41
10K 1%
R2
C4
R274
AUX2
5
6
LEVEL
SW25B
PS-42E85L
22P
B50K
VR53B
20K
W50K
27K
7
5
10K 1%
47uF/35V
X2
90 STEREO JACK
17K4
C152
VR55A
R201
HI-MID(3KHz)
R207
R187
1n(M)
R51
U20B
AUX2
SW28A
R222
D10K
1M
12K
200K
R160
R158
C80
2K7
4580M
AUX2
AUX GND
PS-22E85L
1
SW26A
15K0
7
6
17V
1K50
6K80
100uF/16V
10K 1%
R5
C21
22PF
VR58
C158
R199
R179
AUX SEND
W50K
R275
17K4
2
3
A PFL L
R235
5K1
2
PS-42E85L
1
7
6
3.3n(M)
1M
5
C144
12n(M)
220K
LD1
R156
22K
LEFT-BUS
LEFT-BUS
R237
27K
RIGHT-BUS
RIGHT-BUS
R238
27K
R273
AUX1
5
SW27A
PS-22E85L
SW27B
VR56
B5K
BAL
R52
2K7
10K
R104
10K
R102
10K
R100
10K
R98
C91
47uF/25V
R224
12K
1
U24A
4580M
22P
C47
3
2
5K1
R229
C88
LEVEL
SW25A
PS-42E85L
MUTE
R61
20K
22P
C45
1M
2
R200
R168
1K8
C157
3.3n(M)
B50K
VR53A
HI-MID(3KHz)
3.3n(M)
R206
12K
R198
R166
1K8
C43
22P
1M
1
200K
R186
3
2
R89
10K
C151
C143
1n(M)
220K
R178
22P
C42
22PF
C23
R4
10K 1%
C1
47uF/35V
3c5e1ad2b
CH 9/10
LEFT
PS-22E85L
R53
2K7
R103
10K
R101
10K
R99
10K
R97
10K
12K
7
R223
U24B
5
6
R221
15K0
47uF/25V
VR55B
D10K
2
1
3
C86
47uF/25V
1
U23A
4580M
3
R192
6K8
R210
47K
R190
6K8
U22A
4580M
MID-LO(500Hz)
B50K
VR52A
22K
R182
12n(M)
1K8
R162
R60
20K
C85
47uF/25V
1
R44
27K
4580M
U21A
3
2
VR50A
W50K
R42
1
U20A
R8
10K 1%
3
R1
10K 1%
C2
47uF/35V
X1
90 STEREO JACK
R95
R93
27K
C90
4580M
10K
10K
VR54A
R164
R88
10K
4580M
R6
47uF/25V
R91
C163
B50K
1K8
C141
C81
R49
STEREO
10K 1%
C22
22PF
1
6
R96
R94
10K
47n(M)
C156
LO(80Hz)
EQ HI (12KHz)
B50K
VR51B
12n(M)
R87
10K
100uF/16V
R43
C41
22P
2K7
20dB
GAIN
+20dB
C24
C3
47uF/35V
3c5e1ad2b
(MONO)
AUX3 EXT
AUX3
AUX GND
A/PFL L
3
C87
5
R211
U22B
4580M
22K
R183
YEL
TR2
3904
R58
68K
AUX4 INT
VR59
W50K
R276
17K4
A/PFL R
A PFL R
R236
5K1
5
PFL
6
17V
R219
1K50
6K80
R217
47uF/25V
U23B
4580M
R193
6K8
C164
47K
R191
6K8
VR54B
MID-LO(500Hz)
R165
B50K
VR52B
1K8
R163
LEVEL SET
TR1
3904
AUX
AUX
VR60
W50K
AUX GND
SW26B
PS-42E85L
LD3
RED
PEAK
3904
TR6
3904
TR5
R215
47K0
5K1
R293
R50
20K
47n(M)
B50K
LO(80Hz)
1K8
C142
12n(M)
PGND
C56
R232
PGND
C159
EQ HI (12KHz)
B50K
VR62A
LEFT-BUS
LEFT-BUS
R244
27K
BAL
R56
2K7
R122
R120
R118
R116
C99
47uF/25V
R228
12K
1
U29A
22P
4580M
3
2
5K1
MUTE
R239
22P
C53
1M
R204
R175
1K8
B50K
VR64A
HI-MID(3KHz)
3.3n(M)
12K
R208
R173
1K8
200K
R188
C51
22P
R107
10K
C153
1n(M)
VR67
B5K
10K
10K
10K
10K
C55
R231
LEVEL
20K
C161
R202
1
2
R180
22P
C50
C27
R12
3c5e1ad2b
CH 11/12
22P
5K1
C96
SW29A
PS-42E85L
2
3.3n(M)
1M
3
C146
220K
22PF
10K 1%
C5
47uF/35V
LEFT
RIGHT-BUS
RIGHT-BUS
R245
27K
5
SW31B
PS-22E85L
R57
2K7
R121
10K
R119
10K
R117
10K
R115
10K
C98
47uF/25V
12K
7
R227
U29B
4580M
5
6
R225
15K0
47uF/25V
VR66B
D10K
R113
10K
2
R111
10K
1
3
R109
10K
C94
47uF/25V
1
U28A
4580M
3
R196
6K8
C165
47n(M)
R212
47K
R194
6K8
B50K
VR65A
U27A
4580M
MID-LO(500Hz)
1K8
R172
B50K
VR63A
22K
R184
12n(M)
1K8
R170
C145
12n(M)
R106
10K
R63
20K
C93
47uF/25V
1
R48
C83
27K
VR61A
R16
2
W50K
10K 1%
C6
3
1
R9
47uF/35V
X3
4580M
U26A
R46
U25A
3
10K 1%
90 STEREO JACK
27K
4580M
R14
R54
STEREO
10K 1%
C26
22PF
100uF/16V
2K7
(MONO)
GAIN
6
LO(80Hz)
AUX1
+20dB
C7
AUX1
AUX2
AUX3
AUX1
AUX2
AUX SEND
AUX1
AUX2
VR68
W50K
VR69
W50K
R277
17K4
R278
17K4
R279
5
SW29B
C54
VR64B
AUX2
6
LEVEL
PS-42E85L
22P
B50K
R209
SW32A
R226
VR66A
R205
HI-MID(3KHz)
12K
R189
D10K
1M
200K
AUX GND
PS-22E85L
1
SW30A
15K0
C162
R203
7
6
2
3
R243
PS-42E85L
1
6
3.3n(M)
1M
5
17K4
A PFL L
5K1
2
7
SW31A
PS-22E85L
1
R114
10K
R112
10K
R110
C160
AUX GND
2
SW32B
PS-22E85L
3
47uF/25V
C97
5
6
10K
R176
1K8
3.3n(M)
R174
1K8
22P
C52
EQ HI (12KHz)
B50K
VR62B
10K
R108
C154
1n(M)
C147
12n(M)
R181
220K
17V
LD2
R161
1K50
R159
6K80
R157
22K
20K
R64
R105
10K
47uF/25V
C92
7
C82
100uF/16V
U26B
4580M
R47
27K
C49
22P
R55
2K7
5
6
VR61B
W50K
R45
3c5e1ad2b
C28
R11
22PF
10K 1%
CH 11/12
RIGHT
R15
7
10K 1%
R10
C8
47uF/35V
27K
5
10K 1%
X4
90 STEREO JACK
U25B
4580M
R13
C25
10K 1%
22PF
20dB
47uF/35V
AUX3 EXT
AUX3
A/PFL L
3
5
R213
U27B
4580M
R185
YEL
TR3
R59
VR70
W50K
R286
17K4
AUX GND
A PFL R
R252
5K1
5
PFL
17V
R220
6K80
R218
C95
47uF/25V
U28B
4580M
R197
6K8
47K
R195
6K8
MID-LO(500Hz)
B50K
VR63B
22K
1K8
R171
LEVEL SET
3904
TR4
3904
68K
AUX
AUX4 INT
AUX
AUX GND
A/PFL R
6
1K50
R216
R240
C166
47n(M)
B50K
VR65B
R177
1K8
C148
SW30B
12n(M)
PGND
VR71
47K0
20K
LO(80Hz)
W50K
PS-42E85L
LD4
3904
TR8
10K
C107
X11
SCP6873NS3232
R300
17K4
47uF/25V
10K 1%
R33
C18
C108
7
6
47uF/25V
VR79B
1
3
10K 1%
47uF/35V
X9
LEFT-BU
ST
VR84B
W50K
17K4
R306
R72
20K
47uF/25V
U33B
4580M
5
R486
10K
R233
10K
C232
100P
2TK-OUT-R
2TK-OUT-L
2TK-OUT-R
2TK-OUT-L
R320
R319
1K0
1K0
1
2 5
R(RED)
L(WHITE)
W50K
R69
U31A
20K
4580M
R38
R140
R138
R136
10K 1%
C38
R289
10K
10K
10K
22PF
17K4
RIGHT-BUS
AUX1
AUX1
VR76
W50K
AUX GND
R139
R137
R135
C40
R35
C19
47uF/35V
3c5e1ad2b
90 STEREO JACK
ST SUB IN2
20K
4580M
R30
20K
4580M
R22
R134
R132
R130
10K 1%
C34
R128
R126
R124
10K 1%
C30
R285
10K
10K
10K
22PF
R282
10K
10K
10K
22PF
17K4
17K4
RIGHT-BUS
VR83A
W50K
RIGHT-BUS
R299
17K4
AUX1
AUX1
VR80
W50K
AUX GND
R133
10K
R131
10K
R129
10K
47uF/25V
C103
R31
10K 1%
C36
22PF
R27
10K 1%
C15
47uF/35V
3c5e1ad2b
6
C16
R283 17K4
R26
VR81
R253
SW35A
R68
7
10K 1%
47uF/35V
X8
W50K
5K1
PS-42E85L
1
20K
5
90 STEREO JACK
AUX2
A/PFL L
2
U32B
AUX2
AUX GND
A/PFL L
3
4580M
R29
C33
R284 17K4
PFL
10K 1%
22PF
AUX3
AUX3
VR82
W50K
R488
0R
AUX GND
22P
C167
R305
A/PFL R
R485
A/PFL R
R254
5K1
5
10K
SW35B
PS-42E85L
6
TAPE IN TAPE OUT
ST SUB IN3
RIGHT
RIGHT-BUS
VR75A
W50K
RIGHT-BUS
R297
17K4
AUX1
AUX1
VR72
W50K
AUX GND
R127
10K
0K
R125
R123
10K
47uF/25V
C101
R23
10K 1%
C32
22PF
R19
10K 1%
C11
47uF/35V
3c5e1ad2b
ST SUB IN1
RIGHT
C12
R280 17K4
R18
VR73
R250
SW33A
R66
7
10K 1%
47uF/35V
X6
W50K
5K1
PS-42E85L
20K
5
90 STEREO JACK
AUX2
AUX2
AUX GND
A/PFL L
A/PFL L
2
U30B
3
4580M
R21
C29
R281 17K4
PFL
10K 1%
22PF
AUX3
AUX3
VR74
W50K
AUX GND
A PFL R
A/PFL R
R251
5K1
5
SW33B
6
PS-42E85L
3c5e1ad2b
C39
R36
ST SUB IN2
ST
22PF
10K 1%
C17
LEFT
LEFT-BUS
LEFT-BUS
C104
R40
47uF/35V
(MONO)
LEFT-BUS
VR83B
W50K
LEFT-BUS
ST
R298
17K4
R67
47uF/25V
C102
1
U32A
R32
10K 1%
22PF
C35
3
2
RED
PEAK
PGND
R28
10K 1%
R25
10K 1%
C13
47uF/35V
C14
3c5e1ad2b
47uF/35V
X7
90 STEREO JACK
ST SUB IN3
LEFT
(MONO)
LEFT-BUS
VR75B
W50K
LEFT-BUS
ST
R296
17K4
3904
TR7
5K1
R294
R65
47uF/25V
C100
1
U30A
R24
10K 1%
22PF
C31
3
R20
10K 1%
R17
10K 1%
C9
47uF/35V
C10
47uF/35V
3c5e1ad2b
X5
90 STEREO JACK
ST SUB IN1
LEFT
(MONO)
D
C
B
A
A
17V
-17V
C226
C293
C291
C289
C228
C222
C220
C218
C216
C214
C212
U48C
BA15218N
U47C
BA15218N
00n
4580M
U59C
100n
4580M
U58C
100n
C288
4580M
U57C
100n
C227
4580M
U49C
100n
C221
4580M
U46C
100n
C219
4580M
U45C
100n
C217
4580M
U44C
100n
C215
4580M
U43C
100n
C213
4580M
U42C
100n
C211
100n
C224
47u/25V
C294
100n
C292
100n
100n
100n
100n
100n
100n
100n
100n
100n
C225
100n
C223
R366
R367
120R
120R
7
U48B
BA15218N
5
6
1
U48A
BA15218N
3
2
R391
10K0
R85
20K
47uF/25V
C134
7
U46B
4580M
R341
56K2
5
6
W50K
VR92B
R318
17K4
C132
47uF/25V
7
U45B
4580M
5
6
R330
5K1
A PFL L
A/PFL L
47u/25V
8
8
8
8
8
8
8
8
8
8
8
1
4580M
R477
10K0
U39B
2
R471
C306
R474
4580M
47uF/25V
15K0
B
22K
33P
C302
R363
R145
20K
22P
C74
C72
22P
AUX SEND2
R357
3c5e1a
EFFECT SEND
120R
R143
10K
R327
56K2
3c5e1a
120R
X23
d
2b
JY-6351G-02-250
TRS
RN
TN
R364
120R
R82
C129
47uF/25V
7
U44B
4580M
5
6
R142
10K
1
U44A
4580M
3
2
AUX
AUX
X22
d
2b
TRS
RN
TN
R360
120R
PHONES
20K
EFFECT
EFFECT
JY-6351G-02-250
d
3c5e1a
2b
RN
TN
R361
22P
R390
C76
C75
22P
PHONES
C73
22P
X28
TRS
120R
7
5
6
1
3
2
10K0
1
R340
56K2
2
W50K
VR92A
R317
17K4
C128
47uF/25V
1
2
R328
5K1
A PFL R
A/PFL R
d
3c5e1a
2b
RN
TN
AUX SEND3
R358
120R
JY-6351G-02-250
R362
120R
U47B
U47A
BA15218N
C133
U46A
3
U45A
3
TRS
BA15218N
R84
20K
47uF/25V
4580M
4580M
X24
R365
120R
C79
22P
22P
C269
22P
C78
JY-6351G-02-250
D
12
111098765321
APM STEREO BOARD(2/3)
C
12356
CN4
CON6
7
15K0
10K0
RIGHT
R470
22K
R510
R509
68R0
U59B
4580M
R506
5
C300
33P
68R0
U59A
18K
33P
C30
3
R480
8K66
R505
18K
LEFT
R469
R468
22K
C304
47uF/25V
R507
68R0
7
R511
15K0
U58B
33P
C297
4580M
R504
18K
C296
5
6
R503
C295
33P
R501
11K0
R475
10K0
22K
C303
47uF/25V
68R0
R508
1
R472
15K0
U58A
4580M
33P
18K
R479
8K66
C299
3
2
R476
10K0
C305
47uF/25V
33P
R473
C298
33P
6
R502
11K0
R478
LEFT
R385
20K
C123
47uF/25V
7
4580M
R387
U40B
10K0
R381
36K0
5
6
R383
10K0
R379
36K0
C120
47uF/25V
5
SW43B
SKA-22-06B
6
SW42A
SKA-23-06B
123
L-METER
JY-6351G-02-250
L-METER
d
3c5e1a
RN
AUX SEND1
R350
120R
C130
47uF/25V
7
C77
22P
5
6
R329
10K
R144
10K
8
BRIDGE
SW42B
SKA-23-06B
567
R-METER
R-METER
X21
2b
JY-6351G-02-250
TRS
TN
R359
120R
C61
22P
LEFT
d
3c5e1a
2b
TRS
RN
TN
ST SUB OUT
R346
120R
1
R332
56K2
2
R384
20K
C122
47uF/25V
1
ZD6
5V1
680P
R386
10K0
U40A
4580M
ZD4
5V1
3
2
R378
36K0
C238
C121
2
SW43A
SKA-22-06B
1
3
T
RSRN
TN
3c5e1ad2b
P.AMP INSERT
LEFT
RIGHT
X14
JY-6351G-02-250
R348
120R
R347
R75
20K
C112
47uF/25V
C62
22P
U36A
4580M
3
120R
d
3c5e1a
RN
R333
56K2
X15
2b
JY-6351G-02-250
TRS
TN
R349
120R
R79
20K
C118
47uF/25V
7
U36B
4580M
5
6
LEFT
d
3c5e1a
2b
ST OUT
TRS
RN
TN
L-METER
L-METER
R344
120R
R342
120R
R76
C113
C64
22P
47uF/25V
1
R334
17K4
U37A
4580M
3
2
RIGHT
X12
JY-6351G-02-250
R343
20K
C63
22P
120R
d
3c5e1a
RN
R335
17K4
X13
2b
JY-6351G-02-250
TRS
TN
R-METER
R345
120R
R-METER
R77
20K
C114
47uF/25V
7
U37B
4580M
5
6
C67
22P
d
3c5e1a
2b
TRS
RN
TN
MONO OUT
R351
120R
C119
47uF/25V
1
R377
17K4
3
2
VR88A
D10K
R352
120R
R141
20K
U39A
4580M
ZD7
5V1
C237
680P
ZD5
R380
36K0
R382
10K0
5V1
47uF/25V
POWER AMP
T
RSRN
TN
3c5e1ad2b
X17
JY-6351G-02-250
X16
JY-6351G-02-250
SW41A
R263
3
2
PS-22E85L
5K1
A/PFL L
A/PFL L
X18
RIGHT
1
AFL
R264
5K1
A/PFL R
A/PFL R
MONO OUT
R375
C59
22P
W50K
VR85A
ST SUB OUT
R309
17K4
2TK-OUT-L
2TK-OUT-L
1
R331
10K0
3
2
R308
10K0
C58
LPF
5K1
2
SW40
SW-2WAY
1
3
7
U38B
4580M
5
6
C236
473(M)
C235
473(M)
473(M)
473(M)
00KB
VR87B
R374 19K1
C290
C234
R372
49K9
19K1
R373
R371
19K1
FREQ
VR87A
100KB
1
U38A
4580M
R354
R370
4K99
R368
10K0
3
SW38A
PS-42E85L
R259
5K1
20K
3
2
R369
10K0
L-METER
6
PFL
R260
L-METER
1
3
5
2
SW38B
PS-42E85L
SW39A
PS-42E85L
5K1
R261
5K1
A/PFL R
A/PFL L
A PFL L
A/PFL R
1
2
A/PFL
A PFL L
C66
22P
R-METER
R-MET R 6
5
C65
AFL
22P
SW39B
PS-42E85L
R262
5K1
A/PFL R
R324
A/PFL R
W50K
VR85B
VR86B
D10K
D10K
VR86A
ST OUT
R310
17K4
R74
20K
C111
47uF/25V
U35A
4580M
22P
R322
56K2
R241
20K
EQ OFF
EQ ON
2
SW37A
PS- 2E85L-2
1
3
9EQ IN-L 9EQ OUT-L
47uF/25V
C110
1
U34A
4580M
3
2
LEFT-BUS
LEFT-BUS
SW37B
R311
5K1
R242
20K
5
PS- 2E85-C
22P
C60
6
EQ IN-R 9EQ OUT-R
22P
C57
R323
56K2
R312
5K1
2TK-OUT-R
2TK-OUT-R
R78
20K
R376
10K
47uF/25V
C117
7
U35B
4580M
R336
10K0
5
6
3
2
C284
22P
R356
10K
1
C286
R314
10K0
47uF/25V
C116
7
U34B
4580M
5
6
RIGHT-BUS
RIGHT-BUS
R455
10K
5
6
C285
22P
U57A
4580M
47uF/25V
R295
20K
U57B
4580M
R355
10K
7
C287
47uF/25V
R353
20K
R337
56K2
1
3
AFL
2
SW44A
PS-22E85L
R265
5K1
R266
5K1
A PFL L
A PFL R
A PFL L
A/PFL R
R80
20K
C126
47uF/25V
7
17K4
U41B
4580M
5
6
D10K
VR89A
R313
5K1
C115
47uF/25V
1
U41A
4580M
3
2
C70
22P
C68
22P
R325
AUX1
AUX1
R338
56K2
1
3
AFL
2
SW45A
PS-22E85L
R267
5K1
R268
5K1
A PFL L
A PFL R
A PFL L
A/PFL R
R81
20K
C127
47uF/25V
7
17K4
U42B
4580M
5
6
D10K
VR90A
R315
5K1
C124
47uF/25V
1
U42A
4580M
3
2
C71
22P
C69
22P
R326
AUX2
AUX2
R339
56K2
1
3
AFL
2
SW46A
PS-22E85L
R269
5K1
R270
5K1
A PFL L
A PFL R
A PFL L
A/PFL R
R83
20K
C131
47uF/25V
7
17K4
U43B
4580M
5
6
D10K
VR91A
R316
5K1
C125
47uF/25V
1
U43A
4580M
3
2
AUX3
AUX3
8
4580M
U41C
100n
C210
100n
C209
8
4580M
U40C
100n
C208
100n
C207
8
4580M
U39C
100n
C206
100n
C205
8
4580M
U38C
100n
C204
100n
C203
8
4580M
U37C
C202
100n
100n
C201
8
4580M
U36C
100n
C200
100n
C199
8
4580M
U35C
100n
C198
100n
C197
8
4580M
U34C
17V
-17V
1 2 3 5 6 7 8 9 10 11 12
D
C
B
A
D
C
B
A
17V
17V
LD22
RED
LD47
YEL
LD44
GR
LD43
GR
LD42
GR
LD41
GR
LD40
GR
LD39
GR
LD38
GR
LD37
GR
D10
LD36
GR
LD35
GR
NetCN8_16 NetCN7_16
D8
3906
TR31
123567891011121311516
NetU21_8
NetU21
NetCN7_5
NetCN7_7
NetCN7_9
NetCN7_
NetCN7_6
NetCN7_8
NetU21_8
NetU21
NetCN8_5
NetCN8_7
NetCN8_9
NetCN8_
NetCN8_6
NetCN8_8
1235678
C139
47uF/25V
17V
47R
R483
100n
C231
8
U50C
4580M
C282
47uF/25V
NetU21 8
R467
D11
4148
1
U50A
4580M
4148
3
2
R466
D9
4148
7
U50B
4148
5
6
PGND PGND
R248
300K
R-METER
R-METER
12
17V
R481
SW37C
PS- 2E85L-2
7
8
9
111098765321
17V
10K
R146
-17V
YEL
LD24
9EQ
APM STEREO BOARD(3/3)
C272
6K2
TR27
BC8 7
C270
332P
R 08
68K
C267
822P
R 97
22R
R 2
18R
R 2
6K2
TR25
BC8 7
C265
123P
R 06
68K
C257
153P
7R
R 91
60R
R 95
R 22
6K2
TR23
BC8 7
C263
123P
R 0
68K
C261
R 20
6K2
TR21
BC8 7
273P
R 32
200R
C255
153P
R 02
68K
R 27
TR28
R 25
-17V17V-17V17V 17V -17V
TR26
R 23
TR2
R 21
TR22
392P
R 93
60R
R 99
33R
R 26
C273
392P
R 9
60R
R500
33R
6K2
BC8 7
C271
332P
R 09
68K
8K-LK-L 16K-L
R453
C268
822P
R 98
22R
R 3
18R
6K2
BC8 7
C266
123P
R 07
68K
C258
153P
7R
R 92
60R
R 96
6K2
BC8 7
C26
123P
R 05
68K
C262
6K2
BC8 7
273P
R 33
200R
C256
153P
R 03
68K
9EQ IN-R
R451
4K70
C278
330P
C137
47uF/25V
9EQ OUT-R
20K
R247
20K
C138
47uF/25V
7
U49B
4580M
R450
4K70
5
6
R447
150K
16K-R8K-R2K-R1K-R500-R250-R
VR105B
W100K
VR104B
W100K
K-R125-R63-R
VR103B
W100K
VR102B
W100K
VR101B
W100K
VR100B
W100K
VR99B
W100K
-17V
LD20
RED
YEL
LD46
GR
LD34
GR
(+4) (+7) (+10) (+18)
LD33
GR
LD32
GR
LD31
LEFT METER
GR
LD30
GR
LD29
GR
LD28
GR
LD27
GR
LD26
( 30) ( 20) ( 10) ( 7) ( 4) ( 2) (0) (+2)
GR
LD25
NetCN7_15
NetCN7 1
NetCN7_13
NetCN7 12
NetCN7_11
NetCN7_10
NetCN7_9
NetCN7_8
NetCN7 7
NetCN7_6
NetCN7 5
NetCN7_
NetCN8_6
NetCN8_5
NetCN8_
R463
3906
TR29
R454
120R 1/4W
17V
510R
R155
10K
D1B
DA204K
DA204K
D1A
2K
NetCN8_7
R462
510R
NetCN8 8
LD23
NetCN8 10
NetCN8_9
PGND
GR
PWR ON
NetCN8_13
NetCN8_12
NetCN8_11
PGND
-17V
NetCN8_1
R459
120R 1/4W
NetCN8_15
NetCN7_11
NetCN7 10
NetCN7_12
NetCN8_11
NetCN8 10
NetCN8_12
9
1011121311516
C140
47uF/25V
PGND
C283
47uF/25V
PGND
0R0
R465
R388
0R0
4580M
R464
NetCN7_13
NetCN7_1
NetCN8_13
NetCN8_1
NetU21_
R389
10K
C281
47uF/25V
100K
10K
C280
47uF/25V
100K
NetCN7 15
NetCN8 15
-17V
R482
C230
17
NetCN7_16
PGND
PGND
NetCN8_16
17
47R
100n
PGNDPGND
PGND
PGND
CN7
12VMETER-R
CN8
12VMETER-L
8V
5V
PGND
DGND
123
CN6
HEADER 4
17V
-17V
123
CN3
HEADER 4
R249
300K
A/PFL L
L-METER
L-METER
A PFL L
1235678
A PFL R
A/PFL R
AUX1
AUX2
AUX3
AUX
AUX GND
LEFT-BUS
RIGHT-BUS
LEFT-BUS
RIGHT-BUS
AUX1
AUX2
AUX3
AUX
9
10
CN2
HEADER 10
1K-R
9 BAND EQ
R 18
TR19
17V
R 16
TR17
R 1
TR15
R 12
TR13
R 89
270R
R 0
6K2
BC8 7
6K2R110R
BC8 7
R 36
220R
R 38
6K2
BC8 7
6K2
R 30
BC8 7
C259
683P
18R
C253
153P
R 00
68K
C251
12 P
C2 7
10 P
R398
68K
C2 9
18 P
18R
C2 5
10 P
R396
68K
7 P
C2 3
200R
C239
0.22uF/50V
R39
68K
63-R 125-R 250-R 500-R 8K-RK-R 16K-R2K-R
1K-L
C260
683P
R 90
270R
R 1
18R
R 19
6K2
TR20
BC8 7
17V
R 17
TR18
17V -17V -17V17V-17V
R 15
TR16
17V -17V
R 13
TR1
C25
153P
R 01
68K
500-L 2K-L
C252
6K2
BC8 7
6K2
BC8 7
6K2
BC8 7
12 P
R 5
110R
C2 8
10 P
R399
68K
250-L
C250
18 P
R 37
220R
R 39
18R
C2 6
10 P
R397
68K
7 P
C2
R 31
200R
C2 0
0.22uF/50V
R395
68K
63-L 125-L
9EQ IN-L
R449
4K70
C135
47uF/25V
VR98B
W100K
123567891011121311516
VR97B
W100K
9EQ OUT-L
R452
20K
C277
330P
R246
20K
C136
47uF/25V
1
U49A
4580M
R448
4K70
3
2
R446
150K
16K-L8K-L2K-L1K-L500-L250-L
VR105A
W100K
VR104A
W100K
K-L125-L63-L
VR103A
W100K
VR102A
W100K
VR101A
W100K
VR100A
W100K
CN5
R32_C
17V
5V
-17V
NetC276_1
NetC275 1
NetT
GND
NetCN1_16
NetU58_1
COM
EN2
128
SDB161PVB15FS
123
AR2
680R*4
7 8 5 6 3 1 2
COM
5V
128
EN1
SDB161PVB15FS
123
AR1
680R*4
7 8 5 6 3 1 2
1235678910
CN1
HEADER 8X2
5V
NetR 85_2
NetR 86_2
Z-DSP
NetC27 1
PGND
DGND
NetLD21_2
NetC332_2
NetR 86 2
NetR 85_2
NetLD21_2
LD21
RED
17V
PEAK(FLICKER)
DGND
MUTE(GLOW)
JP1
PGND
X25
d
3c5e1a
2b
JY-6351G-02-250
FOOTSWITCH
(MUTE)
SW11A
PS-22E85L
123
R457
R458
220R
220R
NetU58 1
DGND
PRESETVARIATION
C229
100N
12
RL1A
RY-5W-K
5V
NetTR32 C
D12
RLS4148
TR10
3904
R154
10K
DGND DGND
3906
TR30
R153
10K
DGND DGND
R456
470R
3904
TR9
C279
330uF/16V
R214
47K
R86
20K
DGND DGND
DGND
5V
1112
131
1516
DGND
NetC332 2
NetCN1 16
DSP
VR99A
W100K
Ne C276 1
VR98A
W100K
VR97A
W100K
NetC27 1
C276
C274
4.7uF/25V
4.7uF/25V
RL1B
RY-5W-K
3
Ne C275_1
C275
4.7uF/25V
RL1C
(MUTE)
5 7
RY-5W-K
(MUTE)
6 8
C2 1
105P
R 28
200R
R 3
R 10
TR11
17V -17V 17V -17V 17V -17V 17V -17V -17V17V-17V17V-17V17V-17V 17V -17V
169R
6K2
BC8 7
C1 9
0.22uF/50V
R392
68K
D
R 11
TR12
17V -17V 17V -17V
C2 2
105P
R 29
200R
R 35
169R
6K2
BC8 7
C150
0.22uF/50V
R393
68K
EFFECT
EFFECT
C
R152
10K
R151
10K
R150
10K
R149
10K
R148
10K
R147
10K
17K4
VR93B
D10K
LEFT-BUS
LEFT-BUS
EFFECT RTN
R303
17K4
VR94
W50K
RIGHT-BUS
AUX1
AUX1
RIGHT-BUS
AUX GND
R290
17K4
R302
AUX GND
R291
17K4
R292
17K4
VR95
W50K
VR93A
D10K
AUX2
AUX2
B
AUX GND
AUX3
AUX3
1
3
6
2
5
PFL
SW47A
PS-42E85L
SW47B
PS-42E85L
R271
5K1
R272
VR96
5K1
W50K
A/PFL L
A/PFL R
A/PFL L
A/PFL R
1 2 3 5 6 7 8 9 10 11 12
A
D
C
B
A
8
DIGIMOD1000
APM120 SPEAK
7654321
6
GND
SPEAK RIGHT-
SPEAK LIFT-
SPEAK RIGHT+
GND
SPEAK LIFT+
5 4 3 2 1
APM120 OUT CN
AC IN
AC INPUT
POWER BOARD
DC OUTPUT
SPEAKERS OUT
CN7
+48V
PGND
DGND
+5V
123
4
CN6
APM 120 WIRING DIAGRAM
+48V
PGND
1
2
CN1
AUX1
CN2
AUX1
CN2
AUX2
10
AUX2
10
AUX3
AUX4
AUX3
AUX4
LEFT-BUS
RIGHT-BUS
AUX GND
LEFT-BUS
RIGHT-BUS
AUX GND
GND
GND
PFL R
PFL L
PFL R
PFL L
GND
-17V
GND
+17V
123
4
CN3
123456789
GND
-17V
GND
+17V
123456789
123
4
CN3
+48V
CN1
D
PGND
2
GND
-17V
GND
CN3
+17V
123
4
AUX3
AUX4
RIGHT-BUS
AUX GND
123456789
AUX1
AUX2
1
10
CN2
GND
PFL R
PFL L
LEFT-BUS
MONO BOARD MONO BOARD STEREO BOARD
1 2 3 4 5 6 78
C
B
A
D
C
B
A
8
DIGIMOD1500
APM120 SPEAK
7654321
6
GND
SPEAK RIGHT-
SPEAK LIFT-
SPEAK RIGHT+
GND
SPEAK LIFT+
5 4 3 2 1
APM120 OUT CN
AC IN
AC INPUT
POWER BOARD
DC OUTPUT
SPEAKERS OUT
CN7
+48V
PGND
DGND
+5V
123
4
CN6
+48V
PGND
1
2
CN1
APM 160 WIRING DIAGRAM
AUX1
CN2
AUX1
CN2
AUX2
10
AUX2
10
AUX3
AUX4
AUX3
AUX4
LEFT-BUS
RIGHT-BUS
AUX GND
LEFT-BUS
RIGHT-BUS
AUX GND
GND
GND
PFL R
PFL L
PFL R
PFL L
GND
-17V
GND
+17V
123
4
CN3
123456789
GND
-17V
GND
+17V
123456789
123
4
CN3
+48V
CN1
+48V
CN1
PGND
2
PGND
2
MONO BOARD STEREO BOARD
GND
-17V
GND
CN3
+17V
123
4
AUX3
AUX4
RIGHT-BUS
AUX GND
123456789
AUX1
AUX2
1
10
CN2
GND
PFL R
PFL L
LEFT-BUS
MONO BOARD
GND
-17V
GND
CN3
+17V
123
4
AUX GND
GND
PFL R
PFL L
AUX2
AUX3
AUX4
LEFT-BUS
123456789
AUX1
1
10
CN2
MONO BOARD
1 2 3 4 5 6 78
D
C
B
A
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