Alto MP8 Service Manual

Service Manual

Model: MP8

QUAD/COMPRESSOR/LIMITER

www.altoproaudio.com

Version: 1.1

CONTENT

1. Introduction…………………………………………………………………….1

2. Specification…………………………………………………………………...2

3. Block Diagram…………………………………………………………………3

4. Schematic Diagram…………………………………………………………...4

5. Wiring Diagram……………………………………………………………….14

6. PCB Layout……………………………………………………………………15

7. Exploded View & Mechanical Parts.................................................20

8. BOM.........................................................................................................23

1. Introduction

- 1 -

˙ 2 MIC/Line Input with D/I box built in, 6 MIC input. ˙ Individual Phantom power switch ˙ Precision, high gain MIC preamplifiers. ˙ 8 channels for MIC only also include individual 48 volt switch and high pass

filter.

˙ Analogue output via D type 25 pin connectors.

INPUT

2. Technical Specification

- 2 -

Connectors

Impedance

Max input level

CMRR

OUTPUT

Connectors

Impedance

Max output level

SYSTEM SPECIFICATIONS

Bandwidth

Frequency Response

Signa/Noise

THD

Crosstalk

Stereo Coupling

Six balanced XLR,Two 1/4"TRS Instrument Inputs and TWO

combo on Channel One and Tw

Balanced >50Kohm, Unbalanced>25Kohm

>+24dBu balanced and unbalanced

Typically>60dB at 1KHz

Eight 1/4" TRS (INSERT)

DIRECT OUT MULTI -PIN CONNECTOR WIRING

Unbalanced>60ohm

>+21dBu unbalanced

20HZ to 20kHz, +0/-0.5dB

10Hz to 200kHz,+0/-3dB

>128dBu, weighted, 22Hz to 22kHz

<0.007%

<-100dB, 22Hz to 22Khz

True RMS detection

FUNCTION SWITCHES

48 Volt Phantom Power

High pass filter

INDICATORS

INPUT LEVEL

Function switch

POWER SUPPLY

Mains Voltages

Fuse

Power consumption

Mains Connection

PHYSICAL

Dimension

Net Weight

Eight channel of the MP8 has 48V Phantom power available.

>80Hz

3 element LED display: -20/0/CLIP dB.

LED indicator for each

USA/Canada

U.K./Australia

Europe

General Export Model

100-120VAC : 400mA (SLOW-BLOW)

200-240VAC : 200mA (SLOW-BLOW)

35 Watts

Standard IEC receptacle

W(483.0)*D(198.0)*H(44.2) mm

3.3Kg

~120VAC, 60Hz

~240VAC, 50Hz

~230VAC, 50Hz

~100-120VAC,

~200-240VAC, 50-60Hz

D

3. Block Diagram

- 3 -

8

C

B

A

CN22

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

CH1-H

CH1-C

CH2-H

CH2-C

7

CH1-H

CH1-C

6

CH1 INSERT

5

4

(-20dB 0dB CLIP)

J1

JY6351G-02

3c

5e

1a

4d

2b

R

RED

YEL

GR

RED

YEL

GR

(-20dB 0dB CLIP)

CH5-H

CH5-C

CH6-H

CH6-C

CH7-H

CH3-H

CH3-C

CH4-H

CH4-C

CH2-H

CH2-C

CH7-C

CH2 INSERT

J1

JY6351G-02

3c

5e

1a

4d

2b

R

CN-HD13X2

22

23

24

25

26

CH8-H

CH8-C

(-20dB 0dB CLIP)

8 Channel Balanced Connector

For TASCAM DB25

7 8

CH8-H

CH3-H

CH3-C

CH3 INSERT

J1

JY6351G-02

3c

5e

1a

4d

2b

R

RED

YEL

GR

RED

YEL

GR

(-20dB 0dB CLIP)

CH8-C

6

CH8 INSERT

J1

JY6351G-02

3c

5e

1a

4d

2b

R

5

4

80dB

HI-PASS

HI-PASS SW

3

HI-PASS SW

AMP

PHANTOM POWER 48V

+48V

2

1

2

3

X1

X2

X3

MIC1 IN

GAIN LEVEL 0dB~60dB

HIGH INPUT

IMPEDANCE

4

5

6

2

1

3

22

11

33

LINE IN1

PHANTOM POWER 48V

+48V

X1

X3

MIC2 IN

INSTRUMENT IN1

D

C

80dB

HI-PASS

HI-PASS SW

AMP

GAIN LEVEL 0dB~60dB

HIGH INPUT

IMPEDANCE

1

2

3

4

5

6

X2

2

1

3

22

11

33

PHANTOM POWER 48V

+48V

4

LINE IN2

80dB

HI-PASS

HI-PASS SW

GAIN LEVEL 0dB~60dB

AMP

2

1

3

PHANTOM POWER 48V

+48V

MIC3 IN

INSTRUMENT IN2

B

HI-PASS

3

AMP

GAIN LEVEL 0dB~60dB

2

1

3

4

MIC8 IN

A

2

1

D

4. Schematic Diagram

- 4 -

4

INP UT C H1 - CH2

MP 8 -MAIN - 02 . S c h

INP UT C H3 - CH5

C

MP 8 -MAIN - 03 . S c h

INP UT C H6 - CH8

MP 8 -MAIN - 04 . S c h

B

POWER SUPPLY

BALANCED OUTPUT

MP8 -MAIN - 05 . s ch

MP8 MN -PW R. s ch

A

MP8-MAIN (1/6)

321

CN1

123456789

101112

CN-HD6X2

CN2

123456789

CN-HD5X2

10

CN3

123456789

CN-HD5X2

10

CH1-IN-X3

CH2-IN-X3

CH2-IN-X2

CH2-IN-X3-1

CH2-IN-X2-1

CH2-IN-X1-1

CH2-IN-X1

D1

1N4148D21N4148

+VCC

R13

TR1

BC327

680R 1/ 4W

BC327

CH1-IN-X2

CH1-IN-X3-1

CH1-IN-X2-1

CH1-IN-X1-1

CH1-IN-X1

R22

10K

LD1

YEL

LD2

YEL

4

6

4

6

(CH1 HI-PASS led)

5

CH5-IN-X2

CH5-IN-X3

CH5-IN-X1

LD3

YEL

4

6

(CH2 HI-PASS led)

5

CH3-IN-X2

CH3-IN-X3

CH4-IN-X2

CH4-IN-X3

CH3-IN-X1

CH4-IN-X1

LD4

YEL

4

(CH3 HI-PASS led)

5

YEL

LD5

6

4

(CH4 HI-PASS led)

LD6

6

4

(CH5 HI-PASS led)

5

YEL

CH8-IN-X2

CH8-IN-X3

CH8-IN-X1

LD7

YEL

6

4

6

(CH6 HI-PASS led)

5

CH6-IN-X2

CH6-IN-X3

CH7-IN-X2

CH7-IN-X3

CH7-IN-X1

CH6-IN-X2

LD8

YEL

-VC C

4

6

(CH7 HI-PASS led)

(CH8 HI-PASS led)

5

CBE

SW1B

PBA/6PC

SW3B

PBA/6PC

SW5B

PBA/6PC

SW7B

PBA/6PC

SW9B

PBA/6PC

SW11B

PBA/6PC

SW13B

PBA/6PC

SW15B

PBA/6PC

1 2 34

D

C

B

A

CH1-IN-X3

- 5 -

MIC1 IN

CH1-IN-X2

D

D78

1N4148

CH1-IN-X3- 1

LINE IN1

CH1-IN-X2- 1

C

INSTRUMENT IN

J1

PHONEJAC K

CH2-IN-X3

MIC2 IN

CH2-IN-X2

B

D82 1N4148

CH2-IN-X3-1

LINE IN2

CH2-IN-X2-1

A

INSTRUMENT IN

J2

PHONEJAC K

D79

1N4148

BC33 7

CBE

3 33 22 2 11 1

+VCC-VC C

C273 47uF/ 25V

C274 47uF/ 25V

3 33 22 2 11 1

R33

47R0

R34

47R0

D80

1N4148

+VCC-VC C

+VCC -VC C

C266 47uF/ 25V

C267 47uF/ 25V

R59

6K81

R36

47R0

R37

47R0

D83 1N4148

+VCC -VC C

CH1-48V

6K81

1N4148

CH2-48V

D86 1N4148

5K62

R434

10K

R436

5M1

R57

R427

10K

R429

5M1

R76

R75

C275

100N

R435

10K

D81

R74

5K62

R73

5K62

R428

10K

100N

47uF/63V

C269

100N

R60

6K81

C18

330P

47uF/63V

D87 1N4148

C276

R58

6K81

330P

C3

C17

C2

47uF/63V

C1

C268

100N

C4

47uF/63V

TR51

BC337

R437

5M1

RY1 2W-K

1N4148

TR50

BC337

R430

5M1

RL2

RY12W -K

D51

1N4148

R438

1K

RL1

D48

D49

1N4148

R431

1K

D52

C277

33P

7654321

+VCC

R117

C19

2K49

10N

3906

R93

20K0

C27

1N

2K49

R122

-VC C

TR26

R173

475R

TR10

R78

1K50

12

34

56

78

-VC C

R77

1K50

+VCC

C20

10N

R174

475R

2SA970

C28

2K49

1N

-VC C

R118

2K49

TR27

TR11

R123

1000uF/ 10V

3906

2SA970

C31

+VCC

VR1

02C10K

R35

4R70

R119

2K49

+VCC

R120

2K49

D35

BAS316

-VC C

TR28

R121

2K49

U1A

4580M

3906

3

2

C40

R193

22P

5K11

U1B

R196

5K11

C41

22P

4580M

5

6

1

7

22P

R194

5K11

R225

10K0

R226

10K0

0.22uF/50V

C42

C48

R241

1K3

R277

62K

3

2

U2A

4580M

C43

22P

5K11

C49

0.22uF/50V

6

5

R195

1

U2B

4580M

C72

47uF/25V

R94

20K

C50

0.22uF/50V

R249

6K8

C73

47uF/25V

7

R95

20K

HI - P AS S

1

3

SW1A

PBA/6PC

2

CH1-48V

CH2-48V

CH1-INS CH1-RTN

CN5

1 2 3 4 5 6

6P-2.5

(TO DISPLAY BOARD)

MP8-MAIN (2/6)

CN18

1 2 3 4 5 6

6P-2.5

(CH1 & CH2 I NSERT)

8

D

A970

LINE IN GAIN =-40~+10dB

MIC GAIN =-60~0dB

RYPWR

D50

1N4148

+VCC-VC C

U17A

2

3

4580M

C270

33P

12

34

56

78

D53

1N4148

+VCC-VC C

U17B

6

5

4580M

RYPWR

7

1

R79

1K50

C278

47uF/25V

C271

47uF/25V

-VC C

C23

10N

R96

20K0

C29

1N

R124

2K49

R439

20K

R432

20K

+VCC

-VC C

RYPWR +VCC

C272

47uF/25V

R125

C24

2K49

10N

3906

TR29

R177

475R

TR12

R80

1K50

R178

475R

2SA970

C30

1N

+VCC

-VC C

R433

680R 1/4W

R127

2K49

3906

TR30

TR13

2SA970

R126

2K49

+VCC

C32

1000uF/ 10V

02C10K

4R70

2K49

VR2

R38

CBE

R128

+VCC

D36

BAS316

-VC C

MIC GAIN =-60~0dB

LINE IN GAI N=-40~+10dB

R129

2K49

TR31

R130

2K49

C

R242

1K3

R278

62K

3

2

U4A

4580M

C47

22P

5K11

C52

0.22uF/50V

6

5

R200

1

U4B

4580M

C75

47uF/25V

R97

20K

C53

0.22uF/50V

R250

6K8

C76

47uF/25V

7

R98

20K

HI - P AS S

1

3

SW3A

PBA/6PC

2

+VCC

-VC C

CH2-INS CH2-RTN

84

U1C

4580M

C112

100N

C113

100N

U2C

4580M

B

C114

84

100N

C115

100N

U3C

4580M

84

C116

100N

C117

100N

U4C

4580M

84

C118

100N

C119

100N

U17C

4580M

84

C279

100N

C280

100N

A

C46

22P

U3A

4580M

3906

3

2

C44

22P

5

6

R197

5K11

C45

22P

R198

5K11

4580M

U3B

1

7

R199

5K11

R227

10K0

R228

10K0

0.22uF/50V

C51

1 2 3 4 5 6 78

7654321

- 6 -

8

CH3-48V

R61

6K81

D

MIC3 IN

CH3-IN-X3

CH3-IN-X2

R39 47R0

R40 47R0

R62

6K81

C144

330P

C5

47uF/63V

C6

47uF/63V

MIC GAIN =-60~0dB

D55

D54

1N4148

+VCC -VC C

D57 1N4148

CH4-48V +VCC +VCC +VCC+VCC

C

CH4-IN-X3

MIC4 IN

CH4-IN-X2

R42 47R0

R43 47R0

6K81

R63

+VCC-VC C

R81

1K50

D56 1N4148

R64

6K81

C145

330P

C7

47uF/63V

C8

47uF/63V

MIC GAIN =-60~0dB

D59

D58

1N4148

+VCC -VC C

D60 1N4148

B

CH5-48V

R65

6K81

CH5-IN-X3

MIC5 IN

CH5-IN-X2

R44 47R0

R46 47R0

+VCC-VC C

R83

1K50

D61 1N4148

R66

6K81

C146

330P

C10

47uF/63V

C9

47uF/63V

MIC GAIN =-60~0dB

D89

D88

1N4148

+VCC -VC C

A

D64 1N4148

R85

1K50

D65 1N4148

+VCC-VC C

-VC C

C150

10N

R99

20K0

C186 1N

R135

2K49

C152

10N

R101

20K0

C188 1N

R142

2K49

C154

10N

R104

20K0

C190 1N

R149

2K49

+VCC

-VC C

+VCC

-VC C

R131 2K49

TR32

R181 475R

TR14

R82

1K50

R136 2K49

TR35

R183 475R

TR16

R84

1K50

R143 2K49

TR38

R185 475R

TR18

R86

1K50

+VCC

C151 10N

3906

R182

475R

2SA970

C187

2K49

1N

-VC C

C153 10N

3906

R184

475R

2SA970

C189

2K49

1N

-VC C

+VCC

C155 10N

3906

R186

475R

2SA970

C191

2K49

1N

-VC C

R132 2K49

TR33

TR15

R137

R138 2K49

TR36

TR17

R144

R145 2K49

TR39

TR19

R150

1000uF/10V

3906

2SA970

1000uF/10V

3906

2SA970

1000uF/10V

3906

2SA970

C34

C35

C36

+VCC

VR3 02C10K

R41 4R70

VR4 02C10K

R45 4R70

+VCC

VR5 02C10K

R47 4R70

R133

2K49

R139

2K49

R146

2K49

+VCC

R134

2K49

D37

BAS316

-VC C

D38

BAS316

-VC C

+VCC

D39

BAS316

-VC C

TR34

R140

2K49

R141

2K49

R147

2K49

R148

2K49

R151

2K49

TR37

TR40

3906

3

2

5

6

3906

3

2

5

6

3906

3

2

5

6

C162

22P

C165

22P

C172

22P

U5A

4580M

U7A

4580M

U9A

4580M

R204 5K11

R208 5K11

R211 5K11

R201 5K11

C166

22P

R205 5K11

C169

22P

R212 5K11

C173

22P

U5B

4580M

U7B

4580M

U9B

4580M

1

7

1

7

1

7

22P

R202

5K11

R229 10K0

R230

10K0

0.22uF/50V

22P

R206

5K11

R231 10K0

R233

10K0

0.22uF/50V

22P

R209

5K11

R232 10K0

R234

10K0

0.22uF/50V

C163

C56

C167

C58

C170

C60

R243

1K3

R279

62K

R244

1K3

R280

62K

R245

1K3

R281

62K

3

2

3

2

3

2

U6A

4580M

C164 22P

5K11

C54

0.22uF/50V

6

5

U8A

4580M

C168 22P

5K11

C59

0.22uF/50V

6

5

U10A

4580M

C171 22P

5K11

C61

0.22uF/50V

6

5

R203

R207

R210

1

U6B

4580M

1

U8B

4580M

1

U10B

4580M

C78

47uF/25V

R100

20K

C55

0.22uF/50V

R251

6K8

C79

47uF/25V

7

C81

47uF/25V

R102

20K

C57

0.22uF/50V

R252

6K8

C84

47uF/25V

7

C83

47uF/25V

R105

20K

C62

0.22uF/50V

R253

6K8

C85

47uF/25V

7

R103

20K

R106

20K

R107

20K

HI - P AS S

1

3

SW5A

PBA/6PC

HI - P AS S

1

3

SW7A

PBA/6PC

HI - P AS S

1

3

SW9A

PBA/6PC

2

CH3-48V

CH4-48V

CH5-48V

CH6-INS

CH6-48V

CH3-INS CH3-RTN

CN6

1 2 3 4 5 6

6P-2.5

(TO DISPLAY BOARD)

CH4-INS CH4-RTN

CH5-INS CH5-RTN

CN7

1 2 3 4 5 6

6P-2.5

(TO DISPLAY BOARD)

+VCC

-VC C

CH6-INS CH6-RTN

U5C

4580M

CN19

1 2 3 4 5 6

6P-2.5

(CH3 & CH4 I NSERT)

84

CN20

1 2 3 4 5 6

6P-2.5

(CH5 & CH6 I NSERT)

MP8-MAIN (3/6)

C120 100N

C121 100N

U6C

4580M

C122

84

+VCC

-VC C

100N

C123 100N

U7C

4580M

U9C

4580M

84

C124 100N

C125 100N

C126 100N

C130 100N

U8C

4580M

U10C

4580M

84

C127 100N

C128 100N

C129 100N

C131 100N

D

C

B

A

1 2 3 4 5 6 78

7654321

- 7 -

8

D

C

MIC6 IN

MIC GAIN =-60~0dB

LINE IN GAI N=-40~+10dB

MIC7 IN

CH6-IN-X3

CH6-IN-X2

CH7-IN-X3

CH7-IN-X2

R67

6K81

R48 47R0

R49 47R0

D66 1N4148

+VCC -VC C

R69

6K81

R51 47R0

R52 47R0

D70 1N4148

+VCC -VC C

CH6-48V

R68

6K81

C12

47uF/63V

C147

330P

C11

47uF/63V

D67 1N4148

R87

D71 1N4148

+VCC-VC C

1K50

D69 1N4148

R70

6K81

47uF/63V

C148

330P

C13

47uF/63V

R89

1K50

D73 1N4148

C14

D68 1N4148

CH7-48V +VCC +VCC +VCC+VCC

D72 1N4148

-VC C

C156 10N

R108

20K0

C192 1N

R156

2K49

C158 10N

R110

20K0

C194 1N

R163

2K49

+VCC

-VC C

R152 2K49

TR41

R187 475R

TR20

R88

1K50

R157 2K49

TR44

R189 475R

TR22

R90

1K50

+VCC

R153

C157 10N

3906

R188

475R

2SA970

C193 1N

-VC C

C159 10N

3906

R190

475R

2SA970

C195 1N

-VC C

R158

2K49

R165

2K49

TR42

TR21

R159 2K49

TR45

TR23

1000uF/10V

3906

2SA970

1000uF/10V

3906

2SA970

C37

C38

+VCC

VR6

02C10K

R50

4R70

VR7

02C10K

R55

4R70

R154

2K49

R160

2K49

+VCC

R155

2K49

D40

BAS316

-VC C

D41

BAS316

-VC C

TR43

R161

2K49

R162

2K49

TR46

R168

2K49

U11A

4580M

3906

3

2

C174

R213

22P

5K11

U11B

4580M

C177 22P

U13A

R216 5K11

R220 5K11

C178 22P

R217 5K11

C182 22P

4580M

U13B

4580M

5

6

3906

3

2

5

6

1

7

1

7

22P

R214

5K11

R235 10K0

R236

10K0

0.22uF/50V

22P

R218

5K11

R237 10K0

R239

10K0

0.22uF/50V

C175

C65

C179

C68

R246

1K3

R282 62K

R247

1K3

R283 62K

3

2

3

2

U12A

4580M

C176 22P

5K11

C63

0.22uF/50V

6

5

U14A

4580M

C180 22P

5K11

C66

0.22uF/50V

6

5

R215

R219

1

U12B

4580M

1

U14B

4580M

C87

47uF/25V

R109

20K

C64

0.22uF/50V

R254

6K8

C88

47uF/25V

7

C90

47uF/25V

R111

20K

C67

0.22uF/50V

R255

6K8

C93

47uF/25V

7

R112

20K

R115

20K

HI - PAS S

1

3

SW11A

PBA/6PC

HI - PAS S

1

3

SW13A

PS-22E85L

2

CH6-INS

CH7-INS CH7-RTN

+VCC

4580M

-VC C

CN21

1 2 3 4 5 6

6P-2.5

(CH7 & CH8 I NSERT)

84

U11C

MP8-MAIN (4/6)

C132 100N

C133 100N

U12C

4580M

C134

84

+VCC

-VC C

100N

C135 100N

U13C

4580M

U15C

4580M

84

C136 100N

C137 100N

C138 100N

C142 100N

U14C

4580M

U16C

4580M

84

C139 100N

C140 100N

C141 100N

C143 100N

D

C

B

A

MIC8 IN

CH8-48V

R71

6K81

CH8-IN-X3

CH8-IN-X2

1 2 3 4 5 6 78

R53 47R0

R54 47R0

D74 1N4148

+VCC -VC C

D76

1N4148

D75 1N4148

1N4148

R72

6K81

C16

47uF/63V

C149

330P

C15

47uF/63V

R91

D77

1K50

+VCC-VC C

-VC C

C160 10N

R113

20K0

C196 1N

R170

2K49

+VCC

-VC C

R164 2K49

R191 475R

TR24

R92

1K50

+VCC

C161 10N

TR47

3906

R192

475R

2SA970

C197

R171

1N

2K49

-VC C

R166 2K49

TR48

TR25

1000uF/10V

3906

2SA970

C39

+VCC

VR8

02C10K

R56

4R70

R167

2K49

+VCC

R169

2K49

D42

BAS316

-VC C

TR49

R172

2K49

U15A

4580M

3

3906

2

C181

R221

22P

5K11

U15B

R224 5K11

C185 22P

4580M

5

6

1

7

22P

R222

5K11

R238 10K0

R240

10K0

0.22uF/50V

C183

C69

R248

1K3

R284 62K

3

2

U16A

4580M

C184 22P

5K11

C70

0.22uF/50V

6

5

R223

1

U16B

4580M

C92

47uF/25V

R114

20K

C71

0.22uF/50V

R256

6K8

C94

47uF/25V

7

R116

20K

HI - PAS S

1

3

SW15A

PS-22E85L

2

CH7-48V

CH8-48V

CH7-INS

+48V

+V-LED

LGND

-V- LED

CH8-INS CH8-RTN

CN13

1 2 3 4 5 6 7 8 9 10

10P-2.5

(TO DISPLAY BOARD)

B

A

7654321

- 8 -

8

MP8-MAIN (5/6)

C226

47uF/25V

R258 10K

R367 10K

R368 10K

R375 10K

C242

22P

6

5

C244

22P

6

5

C245

22P

6

5

C248

22P

6

5

U36B

4580M

U37B

4580M

U38B

4580M

U39B

4580M

7

R260 10K

C227

47uF/25V

C230

47uF/25V

R369 10K

C232

47uF/25V

C231

47uF/25V

R370 10K

C237

47uF/25V

C236

47uF/25V

R376 10K

C238

47uF/25V

R411 51K

R415 51K

R419 51K

R420 51K

D

2

R403

100K

R405

100K

R407

100K

R408

100K

3

4580M

2

3

4580M

2

3

4580M

2

3

4580M

CH1-RTN CH5-RTN

CH2-RTN

C

CH3-RTN

B

CH4-RTN

1

U36A

1

U37A

1

U38A

1

U39A

R412

51K

R416

51K

R421

51K

R422

51K

R379

100R

R380

100R

R383

100R

R385

100R

R384

100R

R390

100R

R389

100R

R391

100R

CH1-H

CH1-C

CH2-H

CH2-C

CH3-H

CH3-C

CH4-H

CH4-C

CH6-RTN

CH7-RTN

CH8-RTN

R404

100K

R406

100K

R409

100K

R410

100K

C243

22P

2

3

U40A

4580M

2

3

U41A

4580M

2

3

U42A

4580M

2

3

U43A

4580M

R262 10K

R371 10K

R372 10K

R377 10K

6

5

C246

22P

6

5

C247

22P

6

5

C249

22P

6

5

U40B

4580M

U41B

4580M

U42B

4580M

U43B

4580M

1

7

C228

47uF/25V

R271 10K

C229

47uF/25V

C233

47uF/25V

R373 10K

C235

47uF/25V

C234

47uF/25V

R374 10K

C240

47uF/25V

C239

47uF/25V

R378 10K

C241

47uF/25V

R413 51K

R417 51K

R423 51K

R424 51K

R414 51K

R418 51K

R425 51K

R426 51K

R381

100R

R382

100R

R386

100R

R388

100R

R387

100R

R393

100R

R392

100R

R394

100R

CH5-H

CH5-C

CH6-H

CH6-C

CH7-H

CH7-C

CH8-H

CH8-C

CN22

CH1-H CH1-C

CH2-H CH2-C

CH3-H CH3-C

CH4-H CH4-C

CH5-H CH5-C

CH6-H CH6-C

CH7-H CH7-C

CH8-H CH8-C

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

CN-HD13X2

For TASCA M D B25

8 Channel Balanced Connector

D

C

B

+VCC

A

-VC C

1 2 3 4 5 6 78

84

U36C

4580M

C250 100N

C251 100N

84

U37C

4580M

C252 100N

C253 100N

84

U38C

4580M

C254 100N

C255 100N

84

U39C

4580M

C256 100N

C257 100N

84

U40C

4580M

C258 100N

C259 100N

84

U41C

4580M

C260 100N

C261 100N

84

U42C

4580M

C262 100N

C263 100N

84

U43C

4580M

C264 100N

C265 100N

A