Alto-Macro-830-1400-2400-pwr-sm

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Service Manual
MODEL: MACRO830/1400/2400
LTO
R
www.altoprpaudio.com
Version: 1.0
CONTENTS
1. Specification............................................2-4
2. Block Diagram..........................................5-6
3. Schematic Diagram...................................7-16
4. Printed Circuit Board.................................17-27
5. Wiring Diagram........................................28-30
6. Test Procedure.........................................31
7. Electrical Parts List...................................32-35
8. Exploded Views........................................36
9. Exploded Views Part List...........................37
1
1. Specification
SEKAKU ELECTRON INDUSTRY CO., LTD.
Test Result
Model No MACRO 830(Amplifier)
USER OF VP-7724A
Tester:
Test Date: 2002,11,29
Test Item
Test Conditions
Spec
Test Result
Remark
1 Power Source
AC:
115/120/230/240V
AC: V
Rated Output
(BRIDGE)
8
600W
W
CLIP ON
2
4
850W
W
Load 4
300W+300W
W+W
INPUT 1KHz (CLIP ON)
3 Rated Output
Load 8
N/A
N/A
4
Signal/Noise
Input 1KHz 6dB
Load 4
90dB
105dB (A)
dB
dB(A)
VR MAX (CLIP ON)
5
Distortion
Input 1KHz 6dB
0.1% (10W)
%
6
INPUT
SENSITIVITY
BAL
1% (300W)
%
CHA,CHB
-3.5 1dB
dB
7
STEREO
CHA,CHB
FILTER
0/+5 1dB
dB
STEREO IN (30Hz)
-8.5 1.5dB
dB
FILTER ON
8
PUNCTURE
VOLTAGE
5mA 5Sec
1800V
1800v
9
FREQUENCY
RESPONSE
Input 6dB , 1KHz
Load 4 (BAL OR
STEREO)
28Hz-
24KHz
Hz
OUTPUT 6.8V(10W)
10
2
SEKAKU ELECTRON INDUSTRY CO., LTD.
Test Result
Model No MACRO 1400 (Amplifier)
USER OF VP-7724A
Tester:
Test Date: 2002,11,29
Test Item
Test Conditions
Spec
Test Result
Remark
1 Power Source
AC:
115/120/230/240V
AC: 115V
8
900W
W
Rated Output
(BRIDGE)
2
CLIP ON
4
1400W
W
Rated Output
Load 4
450W+450W
W+W
3
INPUT 1KHz (CLIP ON)
Load 8
N/A
N/A
4 Signal/Noise
Input 1KHz 6dB
Load 4
90dB
105dB (A)
dB
dB(A)
VR MAX (CLIP ON)
5
Distortion
Input 1KHz 6dB
0.1% (10W)
%
6
INPUT
SENSITIVITY
BAL
1% (450W)
%
CHA,CHB
-3.5 1dB
dB
7
STEREO
CHA,CHB
FILTER
0/+5 1dB
dB
STEREO IN (30Hz)
-8.5 1.5dB
dB
FILTER ON
8
PUNCTURE
VOLTAGE
5mA 5Sec
1800V
1800v
9
FREQUENCY
RESPONSE
Input 6dB , 1KHz
Load 4 (BAL OR
STEREO)
28Hz-
24KHz
Hz
OUTPUT 6.8V(10W)
3
SEKAKU ELECTRON INDUSTRY CO., LTD.
Test Result
Model No MACRO 2400(Amplifier)
USER OF VP-7724A
Tester:
Test Date: 2002,11,29
Test Item
Test Conditions
Spec
Test Result
Remark
1 Power Source
AC:
115/120/230/240V
AC: V
8
1500W
W
2
Rated Output
(BRIDGE)
CLIP ON
4
2400W
W
Load 4
750W+750W
W+W
INPUT 1KHz (CLIP ON)
3
Rated Output
Load 8
N/A
N/A
4 Signal/Noise
Input 1KHz 6dB
Load 4
90dB
105dB (A)
dB
dB(A)
VR MAX (CLIP ON)
5
Distortion
Input 1KHz 6dB
0.1% (10W)
%
6
INPUT
SENSITIVITY
BAL
1% (750W)
%
CHA,CHB
-3.5 1dB
dB
7
STEREO
CHA,CHB
FILTER
0/+5 1dB
dB
STEREO IN (30Hz)
-8.5 1.5dB
dB
FILTER ON
8
PUNCTURE
VOLTAGE
5mA 5Sec
1800V
1800v
9
FREQUENCY
RESPONSE
Input 6dB , 1KHz
Load 4 (BAL OR
STEREO)
28Hz-
24KHz
Hz
OUTPUT 6.8V(10W)
4
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