Alto X40 Manuel utilisateur

ServiceManual

www.altoproaudio.com

Version: 1.1

Model: X40 (4-WAY STEREO )

ACTIVE CROSSOVER

CONTENTS

1. Specification

2. Block Diagram

3. Schematic Diagram

4. Printed Circuit Board

5. Wiring Diagram

6. Test Procedure

7. Electrical Parts List

8. Exploded Views & Mechanical Parts List

9. Notes

100Hz-1KHz

1KHz-9KHz

Av=0dB, fc=46,200,1K,5KHz

-94dBu

-95dBu

-94dBu

-92dBu

114dB

483(W) 194.5(D) 44(H)mm (19" 7.7" 1.7")

3.1Kg(6.84lb)

continuously variable

SL Hub , ow, igh variableMid, continuously

rear panel switch

S,L M,Hub ow, id igh front panel switches

rear panel switch

30Hz-250Hz

Electrical

Physical

Controls

Power Supply

Dimensions

Weight

Input Level

Output Level

CD Boost

Mute

Phase

LOW-MID Frequency Range

MID-HIGH Frequency Range

HUM & Noise

SUB e @ 0db)S ction ( utputO

LOW Section (Output@0dB)

MID S (O @0dB)ection utput

HIGH Section(Output @0dB)

S/N Ratio

SUB-LOW Frequency Range

Connector type

Type

Mains supply

Power Rating

3-pole IEC , grounded

Servo controlled , stabilized

10 W

95-120V /210-240V ,60-50Hz

1. SPECIFICATION (X40)

1 2 3 4

4321

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Date: 2-Nov-2002 Sheet of

File: D:\pc42\pc42\ALTO\ \X40\X40 BLOCKDIAGRAM.DDB服務手冊 Drawn By:

AC FUSE100mA

FUSE

5 6

AC POWER SW

AC INPUT 210V-240V

AC PLUG

50Hz

102℃

PT-SCX-34

230V

115V

20V

BRIDGE

AND FILTER CIRCUIT

+15V

-15v

A -CHANNEL SIGNAL

CN-BAL-FEMALE-2

TL074

gain

middle - high pass

900Hz - +9KHz

high pass freq.

TL074

high out

MID out

gain

pass filter

over freq.

100Hz +1KHz

Low -MID pass filter

over freq.

30Hz +250Hz

SUB-Low

SUB - LOW

pass filter

TL074

gain

lower filter pass

TL074

gain

LOW OUT

MID outMID out

MID pass filter

TL074

gain

B -CHANNEL SIGNAL

CN-BAL-FEMALE-2

TL074

gain

middle - high pass

900Hz - +9KHz

high pass freq.

TL074

high out

MID out

gain

pass filter

over freq.

100Hz +1KHz

Low -MID pass filter

over freq.

30Hz +250Hz

SUB-Low

SUB - LOW

pass filter

TL074

gain

lower filter pass

TL074

gain

LOW OUT

MID outMID out

MID pass filter

TL074

gain

2.Block Diagram

1 2 3 4 5 6 78

7654321

X40-1(M).Sch

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Sheet

RevisionModel No:

27-Jan-2002

TASY J.S.

ALTO Mobile : X40 MAIN BOARD

21of

X40 V1.0

4148

220P

104P/250VAC

-15V

+15V

CN-BAL(FEMALE)

VR1

10KB

C42

100/25V

R83

10K0

R80

10K0

R81

10K0

R82

10K0

R85

10K0

R84

10K0

R86

10K0

R87

10K0

SW1

SW-PBA/2P

CD BOOST

822(M)

825R

220P

R91

10K0

R88

15K0 R90

10K0

VR8D

B50K

R93

15K

R92

10K0

C71

182(M)

VR8C

B50K

R96

15K

R95

10K0 C72

182(M)

R94

3K57

VR8B

B50K

R98

15K

R97

10K0 C73

182(M)

VR8A

B50K

R100

15K

R99

10K0

C74

182(M)

R124

3K57

R101

10K0

R111

10K0

R112

10K0

R110

10K0

R113

10K0

R118

150R

C75

220P

C76

182(M)

C81

100/25V

R119

100K

R116

10K0

R115

10K0

R114

10K0

R117

150R

C80

220P

C82

182(M)

C79

100/25V

R122

100K

SW7

SW-PBA/2P

CN-BAL(MALE)

HIGH OUT 1

HIGH

SW8

SW-PBA/2P

VR3

10KB

R102

4K99

R103

27K4

R108

100K

R105

4K7 R107

7K5

R104

2K7

R106

27K

+15V

R109

1K5

LED

HIGH CLIP

-15V

XOVER FREQ 900Hz + 9KHz

LD4

R65

20K0

R89

2K49

R123

IC1A

MC33079

IC1B

MC33079

IC1C

MC33079

IC1D

MC33079

IC2A

MC33079

IC2B

MC33079

IC2C

MC33079

IC2D

MC33079

IC3A

MC33079

IC3B

MC33079

IC3C

MC33079

IC3D

MC33079

R120

2K49

3. Schematic Diagram

1 2 3 4 5 6 78

7654321

X40-2(M).Sch

Titel

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File:

Date:

Drawn By:

Sheet

RevisionModel No:

27-Jan-2002

TASY J.S.

ALTO Mobile : X40 MAIN BOARD

22of

X40 V1.0

R148

10K0

R44

10K0

R41

15K0 R40

10K0

VR4D

B50K

R63

10K0

R64

10K0

C64

153(M)

VR4C

B50K

R59

10K0

R60

10K0 C61

153(M)

R43

3K57

VR4B

B50K

R57

10K0

R58

10K0 C60

153(M)

VR4A

B50K

R55

10K0

R56

10K0 C57

153(M)

R45

3K57

R54

10K0

R37

15K0

R34 10K0

VR5D

B50K

R61

49K9

R62

10K0 C53

683(M)

VR5C

B50K

R50

49K9

R51

10K0 C52

683(M)

R35

3K57

VR5B

B50K

R48

49K9

R49

10K0 C50

683(M)

VR5A

B50K

R46

49K9

R47

10K0 C48

683(M)

R33

3K57

R38

10K0

R39

10K0

R143

10K0

R145

10K0

R144

10K0

R75

10K0

R10

150R

C36

220P

C27

182(M)

C30

100/25V

R11

100K

R140

10K0

R147

10K0

R146

10K0 R13

150R

C35

220P

C34

182(M)

C32

100/25V

R12

100K

SW6

SW-PBA/2P

CN-BAL(MALE)

MID OUT 1

SW3

SW-PBA/2P

VR2

10KB

R19

4K99

R18

27K4

R16

100K

R15

4K7 R14

7K5

R70

2K7

R17

27K

+15V

R67

1K5

LED

SUB CLIP

-15V

R126

10K(8B)

R128

10K

R129

10K

R73

10K0

150R

220P

182(M)

C10

100/25V

100K

R149

10K0

R131

10K0

R130

10K0 R5

150R

C15

220P

C14

182(M)

C12

100/25V

100K

CN-BAL(MALE)

SUB OUT 1

SW4

SW-PBA/2P

VR7

10KB

R25

4K99

R24

27K4

R22

100K

R20

4K7 R21

7K5

R71

2K7

R23

27K

+15V

R68

1K5

LED

LOW CLIP

-15V

R135

10K0

R136

10K0

R137

10K0

R74

10K0

150R

C28

220P

C17

182(M)

C20

100/25V

100K

R132

10K0

R139

10K0

R138

10K0 R9

150R

C25

220P

C24

182(M)

C22

100/25V

100K

SW5

SW-PBA/2P

CN-BAL(MALE)

LOW OUT 1

SW2

SW-PBA/2P

VR6

10KB

R30

4K99

R31

27K4

R27

100K

R29

4K7 R28

7K5

R72

2K7

R26

27K

+15V

R69

1K5

LED

MID CLIP

-15V

R32

10K0

XOVER FREQ 30Hz + 250Hz

XOVER FREQ 100Hz + 1KHz

104P

C56

104P

C58

104P

C59

104P

C62

104P

C54

104P

C55

104P

C49

104P

C51

104P

+15V

-15V

C43

100/25V

C44

100/25V

C39

100/25V

C40

100/25V

C41

100/25V

C45

100/25V

R201

2R2 1/2W

R202

2R2 1/2W

CN1

3P2.5

AGND

C38

1000/25V

C37

1000/25V

CN2

4P2.0

LD1

LD2

LD3

-15V

LD1

LD2LD3

R42

2K49

R36 2K49

R78 R77

R76

CHS1CHS2

LD4

P1 3

IC4A

MC33079

IC4B

MC33079

IC4C

MC33079

IC4D

MC33079

IC5A

MC33079

IC5B

MC33079

IC5C

MC33079

IC5D

MC33079

IC6A

MC33079

IC6B

MC33079

IC6C

MC33079

IC6D

MC33079

IC7A

MC33079

IC7B

MC33079

IC7C

MC33079

IC7D

MC33079

IC8A

MC33079

IC8B

MC33079

IC8C

MC33079

IC8D

MC33079

IC9A

MC33079

IC9B

MC33079

IC9C

MC33079

IC9D

MC33079

411

IC1E

MC33079

411

IC2E

MC33079

411

IC3E

MC33079

411

IC4E

MC33079

411

IC5E

MC33079

411

IC6E

MC33079

411

IC7E

MC330079

411

IC8E

MC33079

411

IC9E

MC33079

100/25V

C16

100/25V

1234

321

ATitle

Number RevisionSize

Date: 27-Jan-2002 Sheet of

File: D:\pc42\pc42\pc42\S-OVER\SCX202S\SCX202S\SCX202S.ddbDrawn By:

SCX POWER Schematic

DB1

RB154

104P

IC1

L7815

IC2

L7915

1000/16V

104P

3CN2

3P2.5

+15V

-15V

CN5

2P2.5

1.2K

+15V

-15V

CN3

3P2.5

C18

1000/35V

C19

1000/35V

CN?

CON3

4.Printed Circuit Diagram

X40(M) PCB LAYOUT

PCB : X40(M) Top Layer

PCB : X40(M) Top Solder Mask

PCB : X40(M) Top Overlay

PCB : X40(M) Bottom Layer

PCB : X40(M) Bottom Solder Mask

PCB : X40(M) Bottom Overlay

PCB : X40(M) Drill Drawing Plots

Hole Size Hole Count

24mil (0.6mm) 174

31mil (0.8mm) 80

39mil (1.0mm) 45

47mil (1.2mm) 68

59mil (1.5mm) 2

87mil (2.2mm) 10

150mil (3.8mm) 4

Totals 383

SCX240IO PCB LAYOUT

PCB : SCX240IO Bottom Layer

PCB : SCX240IO Bottom Solder Mask

PCB : SCX240IO Top Overlay

PCB : SCX240IO Drill Drawing Plots

Hole Size Hole Count

31mil (0.8mm) 40

39mil (1.0mm) 15

47mil (1.2mm) 10

63mil (1.6mm) 20

150mil (3.8mm) 2

Totals 87

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