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Service Manual
MODEL: MACRO830/1400/2400
LTO
www.altoprpaudio.com
Version: 1.0
R
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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
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1. Specification
SEKAKU ELECTRON INDUSTRY CO., LTD.
Model No MACRO 830(Amplifier) USER OF VP-7724A
Tester: Test Date: 2002,11,29
Test Item Test Conditions Spec Test Result Remark
Test Result
1 Power Source
Rated Output
2
(BRIDGE)
3
Rated Output
4 Signal/Noise
5
Distortion
6 INPUT
SENSITIVITY
8
4
Load 4
Load 8
Input 1KHz 6dB
Load 4
Input 1KHz 6dB
BAL
AC:
115/120/230/240V AC: V
600W W
850W W
300W+300W W+W
N/A N/A
90dB
105dB (A)
0.1%
1%
(10W)
(300W)
dB
dB(A)
%
%
CLIP ON
INPUT 1KHz (CLIP ON)
VR MAX (CLIP ON)
CHA,CHB
7
FILTER
8 PUNCTURE
VO LTAG E
FREQUENCY
9
RESPONSE
10
-3.5 1dB
STEREO
STEREO IN (30Hz)
5mA 5Sec 1800V 1800v
Input 6dB , 1KHz
Load 4
(BAL OR
STEREO)
0/+5
-8.5
1dB
1.5dB
28Hz-
24KHz
2
dB
dB
dB FILTER ON
Hz
CHA,CHB
OUTPUT 6.8V(10W)
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SEKAKU ELECTRON INDUSTRY CO., LTD.
Test Result
Model No MACRO 1400 (Amplifier) USER OF VP-7724A
Tester:
Test Item Test Conditions Spec Test Result Remark
1 Power Source
8
Rated Output
2
(BRIDGE)
4
Rated Output
3
4 Signal/Noise
5
Distortion
Load 4
Load 8
Input 1KHz 6dB
Load 4
Input 1KHz 6dB
Test Date: 2002,11,29
AC:
115/120/230/240V
900W W
1400W W
450W+450W W+W
N/A N/A
90dB
105dB (A)
0.1%
(10W)
AC: 115V
dB
dB(A) VR MAX (CLIP ON)
%
INPUT 1KHz (CLIP ON)
CLIP ON
6
SENSITIVITY
7
8
PUNCTURE
FREQUENCY
9
RESPONSE
INPUT
FILTER
VOLTAGE
(450W)
BAL
STEREO
STEREO IN (30Hz)
5mA 5Sec 1800V 1800v
Input 6dB , 1KHz
Load 4
(BAL OR
STEREO)
1%
-3.5 1dB
0/+5
-8.5 1.5dB
1dB
28Hz-
24KHz
%
dB
dB
dB FILTER ON
Hz
CHA,CHB
CHA,CHB
OUTPUT 6.8V(10W)
3
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SEKAKU ELECTRON INDUSTRY CO., LTD.
Test Result
Model No MACRO 2400(Amplifier) USER OF VP-7724A
Tester:
Test Item Test Conditions Spec Test Result Remark
1 Power Source
8
Rated Output
2
(BRIDGE)
4
Load 4
3
Rated Output
Load 8
4 Signal/Noise
5
Distortion
Input 1KHz 6dB
Load 4
Input 1KHz 6dB
Test Date: 2002,11,29
AC:
115/120/230/240V
1500W W
2400W W
750W+750W W+W INPUT 1KHz (CLIP ON)
N/A N/A
90dB
105dB (A)
0.1%
(10W)
AC: V
dB
dB(A)
%
VR MAX (CLIP ON)
CLIP ON
6 INPUT
SENSITIVITY
7
FILTER
8 PUNCTURE
VOLTAGE
FREQUENCY
9
RESPONSE
BAL
STEREO
STEREO IN (30Hz)
5mA 5Sec 1800V 1800v
Input 6dB , 1KHz
Load 4
(BAL OR
STEREO)
1% (750W)
-3.5 1dB
0/+5
-8.5
1dB
1.5dB
28Hz-
24KHz
%
dB
dB
dB FILTER ON
Hz
CHA,CHB
CHA,CHB
OUTPUT 6.8V(10W)
4
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2 . BLOCK DIAGRAM
MACRO 830/1400 BLOCK DIAGRA14M
BRIDGED
5
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B
-15V_A
-15V_B
-14V
C
1
2
1
2
D
8
7
+15V_A
+15V_B
+14V
BR_CUT
A
Revision
DrawnBy:
8
C
Number
D
File: D:\
Date: 19-Dec-2002 Sheet of
Size
Title
7
6
4
5
6
3
2
1
5
2
1
4
+VCC_B
-VCC_A
+VCC_A
3
-VCC_B
TH_A
6
5
4
3
U
L
B
2
1
D
GRN
L
L
B
B
YEL
U
K
K
L
VIO
B
VIO
K
L
B
D
E
R
WHT
GND
LINE
NEUT
C
B
A
2
1
9
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D
C
B
A
8
Revision
8
y:
Sheet of
DrawnB
C
7
1
2
3
4
5
6
7
65
1
1
2
3
4
5
6
7
3
5
7
9
11
13
15
17
19
21
23
25
2
4
6
8
10
12
14
16
18
20
22
24
26
Title
Number
A3
Size
7
Date: 19-Dec-2002
File: D:\
6
5
15
13
11
9
43
7
6
5
4
3
2
1
R
T
2
3
1
2
S
7
6
5
4
3
2
1
7
5
3
1
R
T
S
16
14
12
10
8
6
4
2
2
3
1
4
3
2
1
D
C
B
A
1
10