Alto Macro-2400, Macro-1400, Macro-830 Service Manual

Service Manual

MODEL: MACRO830/1400/2400

R

LTO

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:		AC: V
				115/120/230/240V
		Rated Output	8	600W		W		CLIP ON
2		(BRIDGE)
			4	850W		W
			Load 4	300W+300W		W+W
3		Rated Output					INPUT 1KHz (CLIP ON)
			Load 8	N/A		N/A
4		Signal/Noise	Input 1KHz 6dB	90dB		dB	VR	MAX (CLIP ON)
			Load 4	105dB	(A)	dB(A)
5		Distortion	Input 1KHz 6dB	0.1%	(10W)	%

6		INPUT	BAL		1%	(300W)	%	CHA,CHB
		SENSITIVITY
					-3.5	1dB	dB
	7		STEREO					CHA,CHB
		FILTER			0/+5	1dB	dB
			STEREO IN (30Hz)		-8.5	1.5dB	dB	FILTER ON
		PUNCTURE
	8
		VOLTAGE	5mA	5Sec	1800V		1800v
		FREQUENCY	Input 6dB , 1KHz		28Hz-
	9		Load 4	(BAL OR			Hz
		RESPONSE			24KHz			OUTPUT 6.8V(10W)
			STEREO)
	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:	AC: 115V
				115/120/230/240V
			8	900W	W
	2	Rated Output				CLIP ON
		(BRIDGE)
			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	90dB	dB
			Load 4	105dB (A)	dB(A)	VR MAX (CLIP ON)
	5	Distortion	Input 1KHz 6dB	0.1% (10W)	%

6		INPUT	BAL		1%	(450W)	%	CHA,CHB
		SENSITIVITY
					-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
		FREQUENCY	Input 6dB , 1KHz		28Hz-
9			Load 4	(BAL OR			Hz
		RESPONSE			24KHz			OUTPUT 6.8V(10W)
			STEREO)

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:	AC: V
			115/120/230/240V
		8	1500W	W
2	Rated Output				CLIP ON
	(BRIDGE)
		4	2400W	W
		Load 4	750W+750W	W+W	INPUT 1KHz (CLIP ON)
3	Rated Output
		Load 8	N/A	N/A
					VR MAX (CLIP ON)
		Input 1KHz 6dB	90dB	dB
4	Signal/Noise
		Load 4	105dB (A)	dB(A)
5	Distortion	Input 1KHz 6dB	0.1% (10W)	%

	6	INPUT	BAL	1%	(750W)	%	CHA,CHB
		SENSITIVITY
				-3.5	1dB	dB
	7		STEREO				CHA,CHB
		FILTER		0/+5	1dB	dB
			STEREO IN (30Hz)	-8.5	1.5dB	dB	FILTER ON

8PUNCTURE VOLTAGE

			5mA	5Sec	1800V	1800v
		FREQUENCY	Input 6dB , 1KHz		28Hz-
	9		Load 4	(BAL OR		Hz
		RESPONSE			24KHz		OUTPUT 6.8V(10W)
			STEREO)

4

2 . BLOCK DIAGRAM

830/1400MACRO DIAGRA14MBLOCK

BRIDGED

5

MACRO 2400 BLOCK DIAGRAM

BRIDGED

6

3. Schematic Diagram

D	C				B		A
	BR POS	1+	2-	2+	BR NEG			Revison		f By:
			1-							Sheet Drawn
8
										8
								C
								Number		19-Dec-2002 D:
							Tile	Sze	D	Date: Fie:
							A
							SP
7	VCC_A					-VCC A	SP A
										7
							BA
							BR

6

6

be modify

5

4

+15V A

SP A

3

1	modify
	be
3	2

2

1

D

C

be modify

		A
7	modify	15V
	be
8	4
5	6

+ CC_A

TH A

+14V

3

2

4

-14V

11	6
	1
	5
	7
	8
	R-CUT	-BYP B	-30-B	CLIP-B	-INB

2	4	6	8	10	12	14	16	18	20	22	24	26
1	3	5	7	9	11	13	15	17	19	21	23	25

BR-RET	BR BA	SND-B	+INB
		B

5

4

3

2

1

A

7

D	C
	PO	-
8	BR	2
	1+	2+
		1-

7

VCC B

6

5

be modify

4

3

	7		modify
+15V	8	4	be
	5

VCC B

2
1	bemodify			+14V	14	15	13
3	2
							16
						2
					10
1
							9
INB	-INB	30-B	-SND-B	F BYP-
			F
D		C

B	A
		Revison		f By:
BR NEG				She Drawn		8
		C
		Number		19-Dec 2002	D:
	Tile	Size	D	Date:	Fie:

7

SP B

VCC_B

6

5

4

be modify

3

-15V B

VCC B

2

-14V
	1
CLIP B	BR RE
B	A

8

D

8

15V B 7 +15V A

+14V

6

5

4

+VCC A

3

BLU

2

GRN

1

D

CUT

BR

12

A

VCC-

KBL	LUB
	YEL

C

A15V

B15V

14V-

B	B
VCC	_VCC

VIO	BLK
KBL

WHT

C

B

A

	sionRev		f	By:
			tShe	Drawn
	C			8
	Number		2002Dec -19	D:
Title	Size	D	Date:	File:

7

21

21

6

6	5	4
	2	3

5

A
TH	4

3

VIO

2

EDR

1

LINE

NEUT

GND

B

A

9

8

7

6

5

4

3

2

1

D

C

B

A

1 2

3 4

5 6

7

		1	2
	1	3	4
		5	6
	2
		7	8
	3
		9	10
	4
		11	12
	5
		13	14
	6
		15	16
	7
		17	18
		19	20
		21	22
		23	24
		25	26

		15	16
		13	14
		11	12
		9	10
		7	8
	7	5	6
	6	3	4
	5
	4
	3	1	2
	2
	1
	7
	6
	5
	4
	3
	2
	1

R T

S

2 3 1

R T

S

2 3 1

D

C

B

A

	Revision				8
			Sheet of	DrawnBy:
	C
	Number		19-Dec-2002	D:\	7
Title	Size	A3	Date:	File:

6

5

4

3

2

1

10

D

C

8

CC_A

7

6

5

4

+15V A

3

1	modify
	be
3	2

2

1

D

C

POS	-
BR	2
1+	2+
	1-

7	modify
	be
8	4
5	6

+14V	3	2
	11
		5
	7

-15V A

+VCC A

4

6

1

8

B	A
BR NEG		Revison		f	By:
				Shee	Drawn
					8
		C
		Number		19-Dec 2002	D \
	Ttle	Sze	D	Date: Fle:
	A
	SP
A
VCC	SP B
					7
	BAL
	BR

6

5

4

TH A

3

14V

2

BR-CUT

F-BYP-B

-30-B

CLIP-B

-INB

2	4	6	8	10	12	14	16	18	20	22	24	26
1	3	5	7	9	11	13	15	17	19	21	23	25	1

BR-RET	BR BAL	F-SND-B	+INB
		B	A

11