Page 1

Service Manual
MODEL: MACRO830/1400/2400
LTO
www.altoprpaudio.com
Version: 1.0
R
Page 2

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
Page 3

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)
Page 4

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
Page 5

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
Page 6

2 . BLOCK DIAGRAM
MACRO 830/1400 BLOCK DIAGRA14M
BRIDGED
5
Page 7

MACRO 2400 BLOCK DIAGRAM
BRIDGED
6
Page 8

3. Schematic Diagram
D
8
C
2-
BR POS
1+
2+
1-
B
BR NEG
A
DrawnBy:
8
C
Number RevisonSze
D
Ti le
Date: 19-Dec-2002 Sheet f
Fie: D:
SP A
7
6
5
VCC_A
be modify
-VCC A
SP A
BR BA
7
6
5
be modify
4
4
7
be modify
8
+15V A
SP A
3
1
be modify
3
2
2
1
D
C
4
5
6
+14V
2
1
15V A
+ CC_A
TH A
3
2
4
11
6
1
5
7
8
-BYP B
R-CUT
4
6
8
10
12
14
16
18
3
5
7
9
11
13
15
17
BR-RET
BR BA
B
-14V
-30-B
-IN B
CLIP-B
20
22
24
26
19
21
23
25
+INB
SND-B
A
3
2
1
7
Page 9

D
C
B
A
8
7
VCC B
6
5
2-
BR PO
BR_NEG
1+
2+
1-
SPB
VCC_B
DrawnBy:
C
Number RevisonSize
D
Ti le
Date: 19-Dec2002 She f
Fie: D:
7 8
6
5
be modify
4
4
be modify
3
+15V
2
1
be modify
3
2
1
INB
-INB
7
be modify
8
4
5
VCC B
+14V
14
15
13
16
2
10
9
30-B
F BYP-
F -SND-B
-15V B
VCC B
-14V
CLIP B
BR_RE
3
2
1
D
C
B
A
8
Page 10

D
C
B
A
8
7
6
5
+15V A
15V B
+14V
BR CUT
15V_B
15V A
1
2
1
2
-14V
4
5
6
3
2
DrawnBy:
C
Number Rev sionSize
D
File: D:
Date: 19-Dec 2002 She t f
Title
7 8
6
5
2
1
4
VCC B
-VCC A
+VCC A
3
BLU
BLK
BLU
2
GRN
YEL
VCC_B
VIO
BLK
VIO
BLK
RED
WHT
TH A
4
3
2
1
GND
LINE
NEUT
D
C
B
A
1
9
Page 11

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
Page 12

D
8
C
2-
BR POS
1+
2+
1-
B
BR NEG
A
DrawnBy:
C
Number RevisonS ze
D
Tt le
Date: 19-Dec 2002 Shee f
Fle: D \
SP A
7
6
5
CC_A
VCC A
SP_B
BR BAL
7 8
6
5
4
7
be modify
8
+15V A
3
1
be modify
3
2
2
1
4
5
6
+14V
2
1
-15V A
+VCC A
3
2
4
11
6
1
5
7
8
-30-B
F-BYP-B
CLIP-B
BR-CUT
4
6
8
10
12
14
16
18
20
22
3
5
7
9
11
13
15
17
19
21
TH A
14V
-IN B
24
26
23
25
4
3
2
1
BR-RET
BR_BAL
D
C
+INB
F-SND-B
B
A
11
Page 13

D
C
B
A
8
7
VCC B
6
2-
BR PO
1+
BR_NEG
+
1-
SP B
VCC B
DrawnBy:
C
Number RevisionSize
D
Title
Date: 19-Dec-2002 She f
File: D:
7 8
6
5
4
3
+15V_B
2
7
be modify
8
5
6
VCC B
-15V B
VCC B
5
4
3
2
1
be modify
3
2
1
-30 B
-IN B
+INB
D
F--SND-B
C
+14V
14
15
13
16
12
10
9
F-BYP B
-14V
1
CLIP-B
B
BR-RET
A
12
Page 14

D
C
B
A
8
7
6
15V A
+15V B
+14V
BR CUT
15V B
15V A
2
1
2
1
-14V
6
5
4
2
3
DrawnBy:
C
Number Rev sionS ze
D
Tt le
Date: 19 Dec-2002 She t f
F le: D:
7 8
6
5
1
2
4
VCC_B
VCC A
VCC A
3
BLU
BLU
2
WHT
GRN
YEL
+VCC B
WHT
YEL
YEL
VIO
VIO
BLK
RED
WHT
TH A
5
4
3
2
1
LINE
GND
NEUT
D
C
B
A
1
13
Page 15

D
8
C
2-
BR POS
2+
1+
1-
B
R NEG
BR BAL
A
SP_B
DrawnBy
C
Number RevisionSize
D
Fie: D:
Dae: 19 Dec 2002 She t o
Tit e
55V A
+110 A
CT A
7
6
5
6
7
8
V+
BAL
5
BALSTR
V-
GND
4
3
2
1
110 A
55V A
110V A
110V-A
7 8
6
5
6
7
8
V+
BAL
BALSTR
V-
GND
4
3
2
1
5
4
+15V A
3
1
be modify
2
3
2
1
7
be modify
4
8
6
5
+14V
3
4
2
6
11
1
5
7
8
8
6
4
2
7
5
3
1
15V A
-14V
-BYP-B
-IN B
-30-B
R-CUT
CLIP-B
26
24
22
20
18
16
14
12
10
9
3
15
11
25
23
21
19
17
4
3
2
1
+INB
-SND-B
BR-RET
BR BAL
D
C
B
A
14
Page 16

D
C
B
A
8
7
110 B
6
5
55V B
CT B
8
7
6
5
V+
BAL
BAL/STR
+
_
GND
V-
1
2
3
4
+110 A
2-
BR POS
BR NEG
1+
2+
1-
SP B
-55V B
110V-B
8
7
6
5
V+
BAL
BAL STR
+
_
GND
V-
1
2
3
4
110V A
DrawnBy
C
Number RevsionSze
D
Tt le
Date: 19-Dec-2002 Shee of
Fle: D:
7 8
6
5
4
+15V B
3
2
1
be modify
3
2
PSA31500-A
1
-IN B
+INB
F 30-B
-BYP-B
7
be modify
8
4
5
6
+14V
-BYP-B
-15V B
14
15
13
16
12
10
9
-14V
CLIP-B
BR RET
4
3
2
1
D
C
B
A
15
Page 17

D
C
B
A
BR CUT
8
15V A
7
15V A
+14V
6
15V B
15V A
15V A
15V B
-14V
1
2
1
2
4
5
6
3
2
1
DrawnBy:
8
C
Number Rev sionSize
D
Fi e: D:
Dae: 19-Dec-2002 She t f
Tit e
7
6
5
2
1
4
110V A
110V B
3
2
55V A
CT A
VIO
BLK
VIO
BLU
GRN
YEL
110V_B
110V B
55V_B
-55V A
CT B
BLK
BRN
WHT
BLU
BLK
WHT
CT A
55V B
WHT
BRN
RED
5
4
3
2
1
GND
LINE
NEUT
D
C
B
A
1
16
Page 18

4. Printed Circuit Board
MACRO830/1400
17
Page 19

18
Page 20

19
Page 21

20
Page 22

Macro2400
20
Page 23

2223242526
Page 24
Page 25
Page 26
Page 27
Page 28

27
Page 29

5. Wiring Diagram
D
6
5
C
230/6A
115/11A
B
A
Revision
MACRO830 UNIT CONNECTING
Number
Size
Title
B
6
DrawnBy:
Sheet of
File:
Date: 17-Nov-2002
5
4
3
MACRO 830 UNIT CONNECTING
2
4
L
000 W 2
3
2
000-R
PSA-3000-VR
1
D
C
B
A
1
25
Page 30

D
6
C
5/ 5A
230/8A
B
A
MACRO 1400 UNIT CONNECTING
Number RevisionSize
B
File: DrawnBy:
Date: 17-Nov-2002 Sheet of
5
Title
5 6
4
3
MACRO 1400 UNIT CONNECTING
2
4
2
1
2
1
3
2
1
2
2
PSA-3000-R-VR
1
1
D
C
B
A
1
26
Page 31

D
6
5
C
/20A
230/ 0A
B
A
MACRO 2400
Number RevisionSize
B
File:
Date: 17-Nov-2002 Sheet Of
Title
5 6
4
3
MACRO 2400 UNIT CONNECTING
2
4
PSA-31300-B
PSA-31300PWR-1
3
2
PSA-31300-A
PSA-3000-VR
1
D
C
B
A
1
30
Page 32

6. Test Procedure
LABORATORY DC POWER SUPPLY
CURRET
-
GND
AUDIO GENERATOR GAG-810
0 90dB
INPUT
POWER
+
-
DUAL TRACKING WITH 5V FIXED
MODEL: GPC 3060D
+
OUTPUT (600 )
-
+
CURRET
-
GND
POWER
VOLTAGE
LAT-45 ATTENUATOR
0 10dB
+
VOLTAGE
0 1 0dB
5V 3A
-
+
OUTPUT
600 LOAD
INT
LS 8106 OSCILLOSCOPE
CH3
POWER
POWER
LDM-171 DISTRTION METER
OUTPUT
SET LEVEL
INPUT
-
+
-
CH1
+
ADR-245
+
-
EXT
110V
220V
NORL
220
110
NORL
SHORT
AC
UNSWITCH
CH2
V
DC IN
DC OUT
8
4
+
LOAD SEL
LOAD OUT
+
-
A
16
S P
LOAD
+
CH B
CH A
(+)
LINK
()
OFF ON
LF 30Hz
FILTER
BAL ANC E 1 15V/20K
INPUT
LINK
PARALLEL
(MONO)
OFF
CLIP LIMIT
CONNECT ON
12
3
GND)
BRIDGED
STEREO
INPUT
SRT
T(+)
-
)
R
SGND)
Channel B Bridged ChannelA
ON
SPEAKE CONNECTION
+ +
2
-
1+ 2+
-
1
Channel A B BRIDGED PARALLEL
STEREO MONO
2
-
1+ 2+
1
-
+
1+ 2+
BREAKER
2
-
1
-
CAUTION
ELECTRICSHOCK HAZARD DO NOT REMOVE COVER
REFERSERVIC NG TO QUAL FIED PERSONNEL SEE
INSTRUCTIONMANUAL
AVS R SQUE DE CHOC ELECTRIQUE NE PAS OUVR R
CAUTION
RSK OF LECT IC SHOCK
RSK OF LECT IC SHOCK
DONOT OPEN
DONOT OPEN
WARNING -DO NOT OPEN
SHOCKHAZARD
AVIS - NE PAS OUVRIR
RISQUEDE CHOC ELECTR QUE
AC IN50/60HZ
31
Page 33

7. Electrical Parts List
SECAKU ELECTRON INDUSTRY CO., LTD
PREPARE PARE DETAIL
NO
PARTE
transformer PCS
power cord Europe3P PCS
glass tube fuse PCS
10A 250V 6*32mm UL
led. PCS
3
plate black screw-flat PCS
plate black screw PCS 1
M3*6
PARTE NO,
TD00038
HA00861
HD00041
SA00022
MG00020
UNIT
PCS
QUANTITY AND
CONSUMPTION RATE
DATE
cable tie PCS
ALT-102SB
PCS
HI00125
sliding PCS
HC00108
stereo PCS
6.3 LJB0661-6
HI00128
sliding SW PCS
3digit16P SLB-43-10 handle length10mm
RA00092
resistor 5W PCS
SB00039
transistor PCS
32
Page 34

PCS
power transistor
SA00023
PCS
3
A10K RV16A-41-15FW-A14-3F1
SA00011 2
bridge rectification
25A/200V
light transistor PCS
HI00031
PCS
R415KKETOF
TD00042
PCS
PT-3800E
HA00871
power cord Europe3P PCS
LT-312+1.5*3C(H05VV-F) 6FT +LT -501
glass tube fuse-high speed PCS
12A 250V 6*32mm
PCS 1
3
plate black screw-plat PCS
24
1
16
MG00025
plate black screw-shallow container PCS
HC00100
balanced MIC socket PCS
94M-007P1(plastics)
HC00108
stereo MIC socket PCS
6.3 LJB0661-6
HI00125
sliding SW PCS
sliding SW PCS
3digi t16P SLB-43-10 handle length10mm
33
Page 35

resistor 5W PCS
0.2 Ztype
transistor PCS
MPSA06
transistor PCS
MJE15032
PCS
SB00021
power transistor PCS
SB00023
power transistor PCS
SA00023
led. PCS
3 round red high brightness
RC00014
PCS
RV16A-41-15FW-A14-3F1long bend foot
SA00011
bridge rectification PCS
light PCS 1
4N33.300
power SW PCS
R415KKETOF %
PCS 1
PT-31300E %
power cord Europe3P PCS 1
LT-312+1.5*3C(H05VV-F) 6FT +LT -501 %
%
%
1
1
2
1
1
1
plate black screw-shallow container
balanced MIC socket
HC00100
34
Page 36

6.3 LJB0661-6
HI00125
sliding SW
2digit6P SL20202-25Y-6mm handle length6mm
sliding SW
RC00014
A10K RV16A-41-15FW-A14-3F1long bend foot
SB00002
Z0103A(banding)
SB00003
MAC224/BTA24-600
MUR1520/STPR1520D
PCS
PCS
PCS
PCS
PCS
PCS
STP55NE06/STP60NF06(T O-220)
RA00091
resistor 5W PCS
0.2 P %
transistor PCS
MJE15032
SB00044
transistor PCS 1
MJE15033 %
SB00021 4
power transistor PCS 1
2SC5200 %
SB00023 4
power transistor 1
2SA1943-O %
SA00012 4
25A/200V BP25-06PWS %
SB00015 1
4N33.300
1
1
35
Page 37

8. Exploded Views
46
1
1 19
: 20021219
: MACRO 830/1400/2400
45
36
Page 38

9. Exploded Views Part List
37