Alto Elvis-15MA, Elvis-15M Service Manual
MODEL: ELVIS 15M/15MA
www.altoproaudio.com
Version 1.0
CONTENT
1. Introduction.............................................................................................1
2. Specification.............................................................................................2
3. Block Diagram...........................................................................................3
4. Schematic Diagram..................................................................................4
5. PCB Layout.................................................................................................9
6. Exploded View & Mechanical Parts List.........................................12
7. BOM...........................................................................................................16
1. Introduction
These cabinets is designed for professional stage performance .Using density
Particle Board and high quality carpet for the body of the cabinet made it more
durable .The special handle shows unique Italy style. With the accurate
crossover point made the timbre very clean.
ES12M adopt special horn in polypropylene reinforced. With wide directional
angle 80°±10°(1KHZ -16KHZ)and 180W AES/360W Peak power. Matching the
ELVIS 12S/15S(SUB WOOFER) with ELVIS 12/15 made the acoustics of the
cabinet clean and the bass strong. All these characters made it very suitable
for any place.
Technical Specification ELVIS15MA
Output Power IHF Output Power RMS 350Watt IHF 250Watt RMS
Max SPL at 1W,1m 123dB(IHF Power)
Input Sensitivity Line 0dB/0.775V/Mic-10at -45dB
Impedance 30kOhms Balanced -15kOhms Unbalanced
Connectors Mic on XLR/Line Input on Combo/Line-Mix Output on XLR
Subsonic Filter 30Hz-24dB/oct
Protections Soft -Start DC voltage protect - compressor
External Control Mic Gain-EQ-High-Mid-Low-Volume-Ground Switch
LOW-Frequency High-Frequency 15"/385mm Woofer 1" Compression Driver
Horn Coverage H -V 80°H X 80°V ( 1kHz - 16kHz)
Power Supply 230Volt/115Volt 50/60Hz
Dimensions H: 680 mm(26.77") W: 450 mm(17.72") D: 370 mm(14.57")
Weight 65.15 lbs / 29.55 kg
Shipping Weight 71.52lbs / 32.44kg
Volume 7.35CFT
Technical Specification ELVIS15(2-way)
Power Handling 250W AES/500W Peak
SPL 1W,1m 98,5dB / 122,5 Max
Frequency Response 55Hz ~ 20kHz +/- 6dB
Impedance 8 Ω
Crossover Frequency 2200Hz
High-Frequency Crossover Type 12dB/octave
Low-frequency Crossover Type 12dB/octave
Horn Coverage H -V 80° ± 10° ( 1kHz - 16kHz)
Input Connectors Pin1+ ;Pin1Dimensions H: 680 mm(26.77") W: 450 mm(17.72")D: 370 mm(14.57")
Weight 50.95 lbs / 23.11 kg
Shipping Weright 62.17 lbs/ 28.2 kg
Volume 5.58 CFT
D
4
C
MUTING
CN1 CN2
B
&
RECTIFIER
HIGH RAILS
CAPACITORS
A
ELVIS-PRE SUPPLY BOARD
POSITIVE
-VCC1 -VCC2
321
AMPLIFIER
COMPRESSOR
BIAS
CN3
CN4
NEGATIVE
AMPLIFIER
ELVIS -AMP
AMPLIFIER BOARD
-VCC1 -VCC2
-VCC1 -VCC2+VCC1 +VCC2
+15V
-15V
LOW RAILS
+/-15V
&
RECTIFIER
CAPACITORS
SUPPLY
REGULATORS
CN1 2
D
VOLUME
-15V
POWER ON
POWER
SWITCH
LINE
MAINS
A
TRANSFORMER
1 2 34
FILTER
SUBSONIC
ELVIS-PRE
INPUT BOARD
ELVIS 10A/12A/15A
XLR
INPUT
INPUT
JACK
C
B
D
654321
C
B
A
BLOCK DIAGRAM
DRIVER SPEAKER
CROSSOVER CIRCUIT
B
SPK2
2-
1+
1-
B
2+
2+
WOOFER SPEAKER
2-
SPK1
1+
1-
INPUT
1 2 3 4 5 6
D
C
B
A
A
B
C
D
CLIP(1)
C27
10uF
1 2
R6
2K7
D18
1N 1 8
1 2
1 2
R 8
1 2
1 2
C23
22pF
R 9
100K
TL072
1 2
R65
1K
D19
1N 1 8
1
10K
U1-A
_
2
3
1 2
R 7
10K
1 2 3 5 6 7 8
NPUT(1)
J1-A
AMPMODU1-82J1-B
AMPMODU1-83J1-C
C20
10uF
1 2
R61
1K
R60
K
R58
1K
L072
C28
n7F
6
5
1 2
_
U1-B
R59
1K
AMPMODU1-8
AMPMODU1-8
1
MUTE(1)
6
J1-D
AMPMODU1-85J1-E
J1-G
AMPMODU1-88J1-H
J1-F
AMPMODU1-8
7
AMPMODU1-8
-VCC2VCC2 VCC1 -VCC1 15V -15V
7
-15V
1 2
8K
1 2
R63
1K5
CE
B
Q20
MJE3 0
CE
R52
C30
1nF
220pF
1 2
12K
1 2
K7
1N 1 8
B
C25
100pF
C26
CE
1 2
R51
R50
D17
Q18
CE
B
Q19
220uF
1 2
K2
C7
n7F- 00V
1 2
R15 7K
R16
2K2
7uF100V
1 2
1 2
EC
Z2
7V5
C2
R17
1N 002
D3
8K2
Q3
MJE3 0
J2-2
J2-5
J2-
J2-3
J2 6
65321
C17
R 1
20R
R 0
8R
8K2-2W
2K
D15
1N 002
R2
2
R7
PTC100
J2 1
1 2
CLIP(1)
R62
NPUT(1)
D 1N 002
1 2
1 2
R13
R1
7R
C
70pF
B
1 2
CE
C10
n7F
B
Q1
MJE5031
R
1K
1 2
EC
R5
390R
B
EC
Q5
TIP36C
C16
7uF100V
1N 002
1 2
R18
1K
1 2
R3
390R
2K
K7
1N 1 8
B
C22
100pF
CE
220pF
R 5
R 6
1 2
D16
C21
8K
15V
R
B
MJE350
12K
EC
Q22
R7
1 2
1 2
R 3
1 2
R56
B
Q23
MJE5031
70R
1N 002
R 2
EC
B
2SA19 3
70R
D20
10R
Q13
1 2
100nF
R39
1N 002
1 2
R35
D12
FE68
EC
1 2
OR22
C18
D21
R33
1N 002
1 2
R3
OR22
D22
FE68
10R
D13
1 2
60R
1
VR1
70R
2
3
12K
R7
D23
1N 002
1 2
R55
70R
1 2
R36
B
Q15
2SC5200
R57
MJE802
Q2
10uF
1 2
R53
1 2
R5
B
Q21
MJE5030
CE
B
C31
1 2
1 2
E C
Q17
2N5 01
1 2
20R
1 2
8R
D1
R2
8K2-2W
1
R6
12K
D1
1N 002D21N 002
1 2
R10
7R
C3
70pF
n7F
Q
MJE5030
R38
R37
1 2
1 2
R11
8K2
B
MJE350
C10
Z1
7V5
C1
220uF
R12
8K2
C5
n7F- 00V
1 2
R9
7K
1 2
R8
2K2
EC
Q2
B
Q16
MJE3 0
B
CE
Q7
TIP35C
D7
D10
C6
100nF-100V
-VCC2
1N 002
D22
1N 002
1 2
R28
100nF-100V
C1
10R-2W
D8
VF60
-VCC1
C13
1uF
2
FASTON1
1 2
R22
7K
1 2
B
BC550
Q12
1
MUTE(1)
3
6
K1-B
K1-A
5
7
8
1
S2
FASTON1
S1
1 2
R29
K7
C15
100uF
Q8
BC550
B
CE
B
15V
R2
150K
Q6
CE
BC560
-15V
1 2
R19
33K
1 2
R26
330R
B
E C
Q11
BC560
1 2
C12
100nF
1N 002
D6
K1-C
A
B
1 2
R32
7K
Q9
1 2
EC
1 2
R21
50R
12
D11
1N 002
B
CE
BC550
R20
10K
10K
E C
R25
0K
1 2
R27
B
1 2
Q1
BC560
1 2
B
Q10
BC560
C
D9
VF60
VCC1
R31
0K
C11
220uF
R32
10K
1
R23
0K
EC
1N 002
C8
100nF-100V
8765321
D
A
B
C
D
C9
10nF
Z3 Z
1 2
R28
5K
C15
22pF
GND
1 2
COMBOJACK
J1
1
3
330R
Z1Z2
15K
OP-1 P
GND
R 6
K7
XLR-3P-F-TUPO1
5
6
2
1 2
1 2
R2
330R
R
C5
22pF
Z7 Z8
1 2
1 2
R27
15K
R33
13
12
1 2
_
U1-D
R32
15K
C17
22pF
1 2
1
R26
K7
12
1 2
6
5
R 1
10K
TL07 AC
22pF
_
U1-B
1 2
R31
1K
R25
2K2
C16
22pF
2
3
TL072
22pF
_
U2-A
1
1 2
R36
K7
C23
220nF
C26
7
31
C3
10uF
VR5
POT-DARL
2
TL072
1 2
R12
330R
1 2
R1
22K
6
5
1 2
U2-B
R
22K
_
C30
7
10uF
22pF
C6
EC
Q2
B
3
2 1
D3
1 2
R3
10K
J2
1
2
3
1 2
1 2
R2
330R
R23
330R
J -H
AMPMODU1-8
8
MUTE(1)
J -G
AMPMODU1-8
7
AMPMODU1-8
6
AMPMODU1-8
J -F
J -C
3
J -B
AMPMODU1-8
2
J -E
AMPMODU1-8
5
J -A
AMPMODU1-8
1
J -D
AMPMODU1-8
-VCC2VCC2 VCC1 -VCC1 15V -15V
C11
22pF
Z5 Z6
1 2
1 2
R10
330R
R11
15K
C25
J5-6
J5-5
J5-
J5-3
J5-2
J5-1
CLIP(1)
OUT(1)
TEP(1)
TL072
10K
2
POT-DARL
VR1
10K
3
_
U5-A
1
1 2
R 7
1 2
2
31
CLIP(1)
R53
TEMP(1)
1 2
10K
1 2
R59
10K
1 2
R 9
10K
100nF
15V
R60
C
FASTON1
S1
1 2
1
S2
1 2
R13
10E 1/2W
12
R3
0K
A K
DL1
D1
LEDP
1 2 3 5 6 7 8
1 2
2K7
1
3
1 2
10K
R6
1 2
1uF
100nF
Q3
1 2
R8
R5
10K
B
EC
Q1
C
C35
2
LEDBIC
1 2
1K
R7
2K7
R9
-15V
XLR-3P-TIPC1
CE
B
J3
1
2
3
12
R30
1K2
R29
1K2
12
C10
12
8
1 2
1 2
R37
K7
TL07 AC
U1-C
10
10K
C32
R 2
10K
10pF
_
9
R39
2
C5
100nF
C55
100nF
-15V -15V -15V -15V -15V
C38
100nF
C 8
100nF
15V 15V15V15V 15V
C21
100nF
C22
100nF
C18
100nF
C33
100nF
C3
100nF
C20
100nF
S3
C51
700uF50V
C37
22uF63V
C 3
C39
C36
10uF
C50
700uF80V
FAS ON1
0.0 7uF-250AC
RCT2
0.0 7uF-250AC
RC -KBP
FAS ON1
S5
1
2
A
S7
FAS ON1
1
2
1
2
1 2
1 2
F1
8A
F
C27
D
3
12
700uF50V
22uF63V
100nF
VCC1
C29
R61
68R
C53
C52
2
U7
In
1
GND
LM7815CT
Out
3
C 9
100nF
15V
C 6
10uF
C 7
D2
3
12
VCC2
C2
700uF80V
D5
MUTE1)
8765321
D
FAS ON1
1
2
1
2
1 2
1 2
F2
8A
F3
A
-VCC1
R 3
68R
100nF
2
U6
LM7915CT
In
1
GND
Out
3
100nF
-15V
-VCC2
D6
1 2
1 2
R20
R17
10K
3 1
VR2
POT-DARL
C1
100nF
1 2
R15
10K
1
R55
330R
Q6
B
D7
1N 1 8
1
R5
10K
EC
E C
B
B
EC
TL072
7
U5-B
_
6
5
1 2
R 8
10K
C28
10uF
A
2K7
R16
12K
12
3 1
VR3
POT-DARL
C2
3n3F
2
1 2
R18
2K7
Q
1 2
R51
330R
C 2
10pF
10nF
1
2
R19
10K
Q5
B
C7
2
C8
2n2F
1 2
5K
1 2
5K
R58
K7
1 2
R 0
R 5
2K
K7
K7
330R
70nF
70nF
TL072
12
TL072
R56
1 2
R22
3 1
POT-DARL
VR
1
R21
1 2
R1
C13
1 2
C12
2
3
_
U3-A
1
C19
70nF
1 2
C31
70nF
5
TL072
U3-B
7
10uF
1 2
R52
22K
6
5
_
U -B
7
3
_
U -A
L072
1
10uF
1 2
R57
330R
2
3
C1
10pF
TL07 AC
_
U1-A
1
R35
K7
R38
K7
6
_
C 5
1 2
R50
33K
C 1
10pF
2
C 0
OUT(1)
C
S
FAS ON1
S6
A
1 2 3 4
B
PTC1
JUMP
3.3uF/250V
C2
3R3/20W
R1
L2 0 35mH
C
_
+
IN
1.55mH (BIG)
L1
D
JUMP
C4
1R5/20W
R2
6.8uF /250V
R4
39R/20W
I2V 2.1A
DS1
DS2
PTC2
P3
Hi O/P
10R/20W
R3
P2
I2V 2.1A
0.5A/60V
P4
HI
_
+
C1
LOW
_
(BLACK)_(BROWN)
+
+
WOOFER
P1
_
(BLACK)+
(BLUE)
DRIVER
4321
A
B
C
D
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