Alto DI4 User manual

ServiceManual

www.altoproaudio.com

Version: 1.1

Model: DI4

4-CH DIRECT INJECT BOX

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

1. SPECIFICATIONS (DI4)

Inputs 1/4” jack unbal. In/ Link Out

XLR unbalanced In

Input Impedance max 220 kOhm

Maximum Input level +13/+33/+53dBm

Output XLR balanced Out

Load Impedance >600 Ohm

Max Output Level +18 dBm

System specifications

Bandwidth(100kOhm) 23Hz to 105Khz(±3dbm)

Bandwidth(600Ohm) 23Hz to 60Khz(±3dbm)

Bandwidth(High Cut) 23Hz to 8Khz(±3dbm)

Noise Level -105dBm

THD+N @ 1 kHz / 10 dBm< 0.01 %

Power supply

Connector type 3-pole IEC,grounded

Type Servo controlled,stabilized

Mains supply 115V or 230V 50/60Hz

Power Rating max. 10W

Fuse 100-120V~: T200mA H

200-240V~: T100mA H

Dimensions 483 mm x 197.5 mm x 44.2 mm

Weight ca. 3.7 Kg

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DI4 DIGRAM.Sch

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RevisionModel No:

28-Oct-2002 TASY J.S.

DI4 BLOCK DIGRAM

11 of

DI4 V1.0

CH1

CN12

INPUT

INPUT 3c

LINK

SW23

-20dB ATTENUATION SW24

-20dB ATTENUATION

LED CONTROL

SW19

8KHz HIGH CUT 2

OUTPUTT4 SW22

PHASE

SW21

GND LIFT

SW20

+20dB gain

CH2

CN9

INPUT

INPUT 3c

LINK

SW17

-20dB ATTENUATION SW18

-20dB ATTENUATION

LED CONTROL

SW13

8KHz HIGH CUT 2

OUTPUTT3 SW16

PHASE

SW15

GND LIFT

SW14

+20dB gain

CH3

CN2

INPUT

INPUT 3c

CN4

LINK

SW11

-20dB ATTENUATION SW12

-20dB ATTENUATION

LED CONTROL

SW7

8KHz HIGH CUT 2

OUTPUTT2 SW10

PHASE

SW9

GND LIFT

SW8

+20dB gain

CH4

CN5

INPUT

INPUT 3c

LINK

SW5

-20dB ATTENUATION SW6

-20dB ATTENUATION

LED CONTROL

SW1

8KHz HIGH CUT 2

OUTPUTT1 SW4

PHASE

SW3

GND LIFT

SW2

+20dB gain

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TR5

R68

47K5

R65

1K2

R72

511R

R73

1K00

R74

2K21

R75

4K22

R76

8K06

R78

16K5

R79

33K2

R80

39K2

+VCC-CH1

R66

560R

C26

104P

R67

33K2

U7A

LM339

U7B

LM339

914

U7C

LM339

11 13

U7D

LM339

U8A

LM339

U8B

LM339

914

U8C

LM339

11 13

U8D

LM339

LD17

LD18

LD19

LD20

LD21

LD22

YEL

LD23

YEL

LD24

RED

+VCC-CH1

R77

22R

-VCC-CH1

C24

47/25V

312

U8E

LM339

312

U7E

LM339

+VCC-CH1 +VCC-CH1

+VCC-CH1

CN3

12P-2.0

-VCC-CH1

SW17

PS-42E85L SW18

PS-42E85L

R60

470K

R69

51K1

R61

470K

R70

51K1

( -20dB ) ( -20dB )

LED15

LED14

SW14

PS-22E85L

(+20dB)

SW16

PS-42E85L

(PHASE)

SW15

PS-22E85L

( GND LIFT )

SW13

PS-22E85L

C27

0.47/50V

(8KHZ HIGH CUT)

LED18

LED17

LED16

LED13

TR6

R64

470R

R63

15K

+VCC-CH1

R71

39K2

DI4FP.Sch

Titel

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Date: Drawn By:

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RevisionModel No:

3-Jul-2002 TASY J.S.

DI4FP

11 of

DI4 V1.0

U9A

2068M

U9B

2068M

C21

153(M)

C22

10P

R59

220K

R55

11K

R62

11K

C19

47P

D13

4148

C23

47/25V

+VCC-CH1

D12

4148

R58

U9C

2068M

D11

4148

D15

4148

D14

4148

R57

47K5

R56

47K5

+VCC-CH1

C20

470/10V

C25

1/50V

-VCC-CH1

TR7

R95

47K5

R92

1K2

R99

511R

R100

1K00

R101

2K21

R102

4K22

R103

8K06

R105

16K5

R106

33K2

R107

39K2

+VCC-CH1

R93

560R

C35

104P

R94

33K2

U10A

LM339

U10B

LM339

914

U10C

LM339

11 13

U10D

LM339

U11A

LM339

U11B

LM339

914

U11C

LM339

11 13

U11D

LM339

LD25

LD26

LD27

LD28

LD29

LD30

YEL

LD31

YEL

LD32

RED

+VCC-CH1

R104

22R

-VCC-CH1

C33

47/25V

312

U11E

LM339

312

U10E

LM339

+VCC-CH1 +VCC-CH1

+VCC-CH1

CN4

12P-2.0

-VCC-CH1

SW23

PS-42E85L SW24

PS-42E85L

R87

470K

R96

51K1

R88

470K

R97

51K

( -20dB ) ( -20dB )

LED21

LED20

SW20

PS-22E85L

(+20dB)

SW22

PS-42E85L

(PHASE)

SW21

PS-22E85L

( GND LIFT )

SW19

PS-22E85L

C36

0.47/50V

(8KHZ HIGH CUT)

LED24

LED23

LED22

LED19

TR8

R91

470R

R90

15K

+VCC-CH1

R98

39K2

U12A

2068M

U12B

2068M

C30

153(M)

C31

10P

R86

220K

R82

11K

R89

11K

C28

47P

D18

4148

C32

47/25V

+VCC-CH1

D17

4148

R85

U12C

2068M

D16

4148

D20

4148

D19

4148

R84

47K5

R83

47K5

+VCC-CH1

C29

470/10V

C34

1/50V

-VCC-CH1

TR3

R41

47K5

R38

1K2

R45

511R

R46

1K00

R47

2K21

R48

4K22

R49

8K06

R51

16K5

R52

33K2

R53

39K2

+VCC-CH1

R39

560R

C17

104P

R40

33K2

U4A

LM339

U4B

LM339

914

U4C

LM339

11 13

U4D

LM339

U5A

LM339

U5B

LM339

914

U5C

LM339

11 13

U5D

LM339

LD9

LD10

LD11

LD12

LD13

LD14

YEL

LD15

YEL

LD16

RED

+VCC-CH1

R50

22R

-VCC-CH1

C15

47/25V

312

U5E

LM339

312

U4E

LM339

+VCC-CH1 +VCC-CH1

+VCC-CH1

CN2

12P-2.0

-VCC-CH1

SW11

PS-42E85L SW12

PS-42E85L

R33

470K

R42

51K1

R34

470K

R43

51K1

( -20dB ) ( -20dB )

LED9

LED8

SW8

PS-22E85L

(+20dB)

SW10

PS-42E85L

(PHASE)

SW9

PS-22E85L

( GND LIFT )

SW7

PS-22E85L

C18

0.47/50V

(8KHZ HIGH CUT)

LED12

LED11

LED10

LED7

TR4

R37

470R

R36

15K

+VCC-CH1

R44

39K2

U6A

2068M

U6B

2068M

C12

153(M)

C13

10P

R32

220K

R28

11K

R35

11K

C10

47P

4148

C14

47/25V

+VCC-CH1

4148

R31

U6C

2068M

4148

D10

4148

R30

47K5

R29

47K5

+VCC-CH1

C11

470/10V

C16

1/50V

-VCC-CH1

TR1

R13

47K5

R11

1K2

R18

511R

R19

1K00

R20

2K21

R21

4K22

R22

8K06

R24

16K5

R25

33K2

R26

39K2

+VCC-CH1

R12

560R

104P

R14

33K2

U1A

LM339

U1B

LM339

914

U1C

LM339

11 13

U1D

LM339

U2A

LM339

U2B

LM339

914

U2C

LM339

11 13

U2D

LM339

LD1

LD2

LD3

LD4

LD5

LD6

YEL

LD7

YEL

LD8

RED

+VCC-CH1

R23

22R

-VCC-CH1

47/25V

312

U2E

LM339

312

U1E

LM339

+VCC-CH1 +VCC-CH1

+VCC-CH1

CN1

12P-2.0

-VCC-CH1

SW5

PS-42E85L SW6

PS-42E85L

470K

R15

51K1

470K

R16

51K1

( -20dB ) ( -20dB )

LED3

LED2

SW2

PS-22E85L

(+20dB)

SW4

PS-42E85L

(PHASE)

SW3

PS-22E85L

( GND LIFT )

SW1

PS-22E85L

0.47/50V

(8KHZ HIGH CUT)

LED6

LED5

LED4

LED1

TR2

R10

470R

15K

+VCC-CH1

R17

39K2

U3A

2068M

U3B

2068M

153(M)

10P

220K

11K

47P

4148

47/25V

+VCC-CH1

4148

U3C

2068M

4148

47K5

+VCC-CH1

470/10V

1/50V

-VCC-CH1

(CH4)

(CH3)

(CH1)

(CH2)

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87654321

1.GND( ) ..本機的所有電器未與外殼連通

2.DC24V( );4, ..工作電壓穩壓組獨立供應互不相連接

3...為鋪銅面

CN12

XLMN-3PH 3c

CN-JY6351G-02

LINK

CH1 INPUT

C20

100P

R18

R19

C22

47/25V

CN13

12P-2.0

[ RED LINE ]

+VCC-CH1

OT-DI1

R16

47R L4

220uH

R17

33R 2

CN11

XLR-3MALE

R20

4K7

C21

102P

TR4

78L24

C14

47/50V C15

220/50V

D13

4148

D15

4148

D14

4148 D16

4148

+VCC-CH1

+VCC-CH1 +29VDC

-VCC-CH1

CN6

AC24V IN

DI4PU.Sch

Titel

Size

File:

Date: Drawn By:

Sheet

RevisionModel No:

21-Jun-2002 TASY J.S.

DI4PU

11 of

DI4 v1.0

CN9

XLMN-3PH 3c

CN-JY6351G-02

LINK

CH2 INPUT

C17

100P

R13

R14

C19

47/25V

CN10

12P-2.0

[ RED LINE ]

+VCC-CH1

OT-DI1

R11

47R L3

220uH

R12

33R 2

CN8

XLR-3MALE

R15

4K7

C18

102P

TR3

78L24

C11

47/50V C12

220/50V

4148

D11

4148

D10

4148 D12

4148

+VCC-CH1

+VCC-CH1 +29VDC

-VCC-CH1

CN6

AC24V IN

CN2

XLMN-3PH 3c

CN-JY6351G-02

LINK

CH3 INPUT

100P

47/25V

CN7

12P-2.0

[ RED LINE ]

+VCC-CH1

OT-DI1

47R L2

220uH

33R 2

CN6

XLR-3MALE

R10

4K7

C10

102P

TR2

78L24

47/50V C9

220/50V

4148

4148 D8

4148

+VCC-CH1

+VCC-CH1 +29VDC

-VCC-CH1

CN6

AC24V IN

CN5

XLMN-3PH 3c

CN-JY6351G-02

LINK

(CH4)

100P

47/25V

CN4

12P-2.0

[ RED LINE ]

+VCC-CH1

OT-DI1

47R L1

220uH

33R

CN3

XLR-3MALE

4K7

102P

TR1

78L24

47/50V C4

220/50V

4148

4148 D4

4148

+VCC-CH1

+VCC-CH1 +29VDC

-VCC-CH1

CN6

AC24V IN

(CH3)

(CH1)

(CH2)

CH4 INPUT

CH3 OUTPUT

CH4 OUTPUT

CH1 OUTPUT

CH2 OUTPUT

4.Printed Circuit Diagram

DI4FP PCB LAYOUT

PCB : DI4FP Top Layer

PCB : DI4FP Top Solder Mask

PCB : DI4FP Bottom Layer

PCB : DI4FP Bottom Solder Mask

PCB : DI4FP Bottom Overlay

PCB : DI4FP Top Overlay

PCB : DI4FP Drill Drawing Plots

Hole Size Hole Count

24mil (0.6mm) 308

31mil (0.8mm) 392

35mil (0.9mm) 48

126mil (3.2mm) 8

Totals 756

DI4FP PCB LAYOUT

PCB : DI4PU Top Overlay

PCB : DI4PU Top Layer

PCB : DI4PU Top Solder Mask

PCB : DI4PU Bottom Overlay

PCB : DI4PU Bottom Layer

PCB : DI4PU Bottom Solder Mask

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