Primare SPA20 User manual

SPA20 Surround Processing Amplifier

Service Manual

1. Circuit Diagrams

2. Adjustment

3. Technical Specifications

Confidential !

This document is not allowed to show for third part without written permission

from Primare Systems AB.

This document is subject to change without notice.

Author:

Bjorn Holmqvist

Primare Systems AB

[email protected]

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Title

Number RevisionSize

Date: 20-Aug-2003 Sheet of

File:

D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade komponentvärden\Backup of em1134A.DDB

Drawn By:

2SC2240

2SA970

BD677A

2SC4793

Q10

2SA1837

1K Q11

2SA1943

Q13

2SC5200

33K

10K

110R

470R

1N4148

0.1U

R12

5K6

R13

5K6

R14

5K6

R15

3K3

2SA970

18K

C10

Q22SC2240

2SC2240

R16

115R

R17

2K2

470R

R19

1K1

R20

22K

C11

18P

1N4148

0.1U

470R

R22

220R R23

100R

R10

470R

R25

4K7

R26

4K7

R27

4K7

R29

470K

Q17

OPTOISO1

Q18

BS107

R24

280R

R30

680R

R28

4K7

R18

1K1

0R C3

2SC4793

R31

75R

R32

75R

0.1U

C12

220U/16V

R37

470R

R38

470R

R39

0.22R

R40

0.22R

R43

22R

R44

22R

R45

22R

R46

22R

Q12

2SA1943

Q14

2SC5200

R41

0.22R

R42

0.22R

R47

22R

R48

22R

R49

22R

R50 22R

FUSE1

0.1U

R21

22K

R51

0.1U C13

R52

+15V_AN

-15V_AN

+POWER

-POWER

0.1U

C14

0.1V

C15

100U/63V

C16

100U/63V

R33

22R R34

22R R35

22R R36

22R

0.1U

R11

470R BIAS-STANDBY

Q15A

2SK389 Q15B

2SK389

PIN P9

P10

+POWER-REG

-POWER-REG

RE1A

SW SPDT

OPA134

R POWER FRONT

AMP-OUT-FRONT-R

R325

220R C93

330pF

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Title

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Date: 20-Aug-2003 Sheet of

File:

D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade komponentvärden\Backup of em1134B.DDB

Drawn By:

Q30

2SC2240

Q40

2SA970

Q45

BD677A

Q52

2SC4793

Q57

2SA1837

R56

1K Q64

2SA1943

Q72

2SC5200

R60

33K

R70

10K

R76

110R

R95

470R

D21

1N4148

D22

1N4148

C44

0.1U

R110

5K6

R111

5K6

R112

5K6

R116

3K3

Q41

2SA970

R71

18K

R72

18K

C56

Q31

2SC2240

Q32

2SC2240

Q33

2SC2240

R120

115R

R127

2K2

R96

470R

R132

1K1

R139

22K

C60

18P

D23

1N4148

D24

1N4148

C45

0.1U

R97

470R

R144

220R R151

100R

R98

470R

R165

4K7

R166

4K7

R167

4K7

R172

470K

Q77

OPTOISO1

Q81

BS107

R152

280R

R176

680R

R168

4K7

R128

1K1

D25

0R C46

Q53

2SC4793

R99

75R

R192

75R

C47

0.1U

C64

220U/16V

R203

470R

R204

470R

R217

0.22R

R218

0.22R

R245

22R

R246

22R

R247

22R

R248

22R

Q65

2SA1943

Q73

2SC5200

R219

0.22R

R220

0.22R

R249

22R

R250

22R

R251

22R

R25222R

FUSE1

S10

FUSE1

C48

0.1U

C49

0.1U

OPA134

R140

22K

R256

C50

0.1U C68

R260

+15V_AN

-15V_AN

+POWER

-POWER

C51

0.1U

C72

0.1V

C79

100U/63V

C80

100U/63V

R193

22R R194

22R R195

22R R196

22R

C52

0.1U

R100

470R BIAS-STANDBY

Q85A

2SK389 Q85B

2SK389

PIN P7

+POWER-REG

-POWER-REG

RE1B

SW SPDT

L POWER FRONT

AMP-OUT-FRONT-L

C92

330pF

R324

220R

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Title

Number RevisionSize

Date: 20-Aug-2003 Sheet of

File:

D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade komponentvärden\Backup of em1134C.DDB

Drawn By:

Q26

2SC2240

Q38

2SA970

Q44

BD677A

Q50

2SC4793

Q56

2SA1837

R55

1K Q62

2SA1943

Q70

2SC5200

R59

33K

R67

10K

R75

110R

R89

470R

D16

1N4148

D17

1N4148

C35

0.1U

R107

5K6

R108

5K6

R109

5K6

R115

3K3

Q39

2SA970

R68

18K

R69

18K

C55

Q27

2SC2240

Q28

2SC2240

Q29

2SC2240

R119

115R

R125

2K2

R90

470R

R131

1K1

R137

22K

C59

18P

D18

1N4148

D19

1N4148

C36

0.1U

R91

470R

R143

220R R149

100R

R92

470R

R161

4K7

R162

4K7

R163

4K7

R171

470K

Q76

OPTOISO1

Q80

BS107

R150

280R

R175

680R

R164

4K7

R126

1K1

D20

0R C37

Q51

2SC4793

R93

75R

R187

75R

C38

0.1U

C63

220U/16V

R201

470R

R202

470R

R213

0.22R

R214

0.22R

R237

22R

R238

22R

R239

22R

R240

22R

Q63

2SA1943

Q71

2SC5200

R215

0.22R

R216

0.22R

R241

22R

R242

22R

R243

22R

R24422R

FUSE1

C39

0.1U

C40

0.1U

OPA134

R138

22K

R255

C41

0.1U C67

R259

+15V_AN

-15V_AN

+POWER

-POWER

C42

0.1U

C71

0.1V

C77

100U/63V

C78

100U/63V

R188

22R R189

22R R190

22R R191

22R

C43

0.1U

R94

470R BIAS-STANDBY

Q84A

2SK389 Q84B

2SK389

PIN P5

+POWER-REG

-POWER-REG

RE2A

SW SPDT

AMP-OUT-REAR-R

R POWER REAR R323

220R

C91

330pF

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Title

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Date: 20-Aug-2003 Sheet of

File:

D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade komponentvärden\Backup of em1134D.DDB

Drawn By:

Q22

2SC2240

Q36

2SA970

Q43

BD677A

Q48

2SC4793

Q55

2SA1837

R54

1K Q60

2SA1943

Q68

2SC5200

R58

33K

R64

10K

R74

110R

R83

470R

D11

1N4148

D12

1N4148

C26

0.1U

R104

5K6

R105

5K6

R106

5K6

R114

3K3

Q37

2SA970

R65

18K

R66

18K

C54

Q23

2SC2240

Q24

2SC2240

Q25

2SC2240

R118

115R

R123

2K2

R84

470R

R130

1K1

R135

22K

C58

18P

D13

1N4148

D14

1N4148

C27

0.1U

R85

470R

R142

220R R147

100R

R86

470R

R157

4K7

R158

4K7

R159

4K7

R170

470K

Q75

OPTOISO1

Q79

BS107

R148

280R

R174

680R

R160

4K7

R124

1K1

D15

0R C28

Q49

2SC4793

R87

75R

R182

75R

C29

0.1U

C62

220U/16V

R199

470R

R200

470R

R209

0.22R

R210

0.22R

R229

22R

R230

22R

R231

22R

R232

22R

Q61

2SA1943

Q69

2SC5200

R211

0.22R

R212

0.22R

R233

22R

R234

22R

R235

22R

R23622R

FUSE1

C30

0.1U

C31

0.1U

OPA134

R136

22K

R254

C32

0.1U C66

R258

+15V_AN

-15V_AN

+POWER

-POWER

C33

0.1U

C70

0.1V

C75

100U/63V

C76

100U/63V

R183

22R R184

22R R185

22R R186

22R

C34

0.1U

R88

470R BIAS-STANDBY

Q83A

2SK389 Q83B

2SK389

PIN P3

+POWER-REG

-POWER-REG

RE2B

SW SPDT

L POWER REAR

AMP-OUT-REAR-L

C90

330pF

R322

220R

12345678

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Title

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Date: 20-Aug-2003 Sheet of

File:

D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade komponentvärden\Backup of em1134E.DDB

Drawn By:

Q16

2SC2240

Q34

2SA970

Q42

BD677A

Q46

2SC4793

Q54

2SA1837

R53

1K Q58

2SA1943

Q66

2SC5200

R57

33K

R61

10K

R73

110R

R77

470R

1N4148

C17

0.1U

R101

5K6

R102

5K6

R103

5K6

R113

3K3

Q35

2SA970

R62

18K

R63

18K

C53

Q19

2SC2240

Q20

2SC2240

Q21

2SC2240

R117

115R

R121

2K2

R78

470R

R129

1K1

R133

22K

C57

18P

1N4148

C18

0.1U

R79

470R

R141

220R R145

100R

R80

470R

R153

4K7

R154

4K7

R155

4K7

R169

470K

Q74

OPTOISO1

Q78

BS107

R146

280R

R173

680R

R156

4K7

R122

1K1

D10

0R C19

Q47

2SC4793

R81

75R

R177

75R

C20

0.1U

C61

220U/16V

R197

470R

R198

470R

R205

0.22R

R206

0.22R

R221

22R

R222

22R

R223

22R

R224

22R

Q59

2SA1943

Q67

2SC5200

R207

0.22R

R208

0.22R

R225

22R

R226

22R

R227

22R

R22822R

FUSE1

C21

0.1U

C22

0.1U

OPA134

R134

22K

R253

C23

0.1U C65

R257

+15V_AN

-15V_AN

+POWER

-POWER

C24

0.1U

C69

0.1V

C73

100U/63V

C74

100U/63V

R178

22R R179

22R R180

22R R181

22R

C25

0.1U

R82

470R BIAS-STANDBY

Q82A

2SK389 Q82B

2SK389

PIN P1

+POWER-REG

-POWER-REG

RE3A

SW SPDT

RE3B

SW SPDT

CENTER POWER

AMP-OUT-CENTER

R321

220R

C89

330pF

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Title

Number RevisionSize

Date: 20-Aug-2003 Sheet of

File:

D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade komponentvärden\Backup of Em1134f.DDB

Drawn By:

Name

em1134E.sch

Name

em1134D.sch

Name

em1134C.sch

Name

em1134B.sch

Name

em1134A.sch

C81

10000U/63V

C82

10000U/63V

C83

10000/63V

C84

10000/63V

R261

22R

R262

22R

R263

22R

R264

22R

P11

HEADER 4

RE3C

SW SPDT

RE2C

SW SPDT

RE1C

SW SPDT

R265

150K

D26

PMLL4148

C97

470N

R270

R271

R285

120K

R272

D27

PMLL4148

+15V_AN

C98

470N

U6A

MC1458

U6B

MC1458

R266

150K

D28

PMLL4148

C99

470N

R273

R274

R286

120K

R275

D29

PMLL4148

+15V_AN

C100

470N

+15V_AN

-15V_AN

Q86

BC846

D39

2V7

R290

56K

D30

PMLL4148

STANDBY FRONT

Q87

BC846

D40

2V7

R291

56K

D44

1N4148

R295

1K2/3W

+POWER

R267

150K

D31

PMLL4148

C101

470N

R276

R277

R287

120K

R278

D32

PMLL4148

+15V_AN

C102

470N

U7A

MC1458

U7B

MC1458

R268

150K

D33

PMLL4148

C103

470N

R279

R280

R288

120K

R281

D34

PMLL4148

+15V_AN

C104

470N

+15V_AN

-15V_AN

Q88

BC846

D41

2V7

R292

56K

D35

PMLL4148

STANDBY

Q89

BC846

D42

2V7

R293

56K

D45

1N4148

R296

1K2/3W

+POWER

U8A

MC1458

R269

150K

D36

PMLL4148

C105

470N

R282

R283

R289

120K

R284

D37

PMLL4148

+15V_AN

C106

470N

+15V_AN

-15V_AN

Q90

BC846

D43

2V7

R294

56K

D38

PMLL4148

STANDBY

D46

1N4148

R297

1K2/3W

+POWER

AMP-OUT-FRONT-L

AMP-OUT-FRONT-R

AMP-OUT-REAR-R

AMP-OUT-REAR-L

AMP-OUT-CENTER

R298

3K65

R300

330R

D49

BRIDGE1

Vin

ADJ

Vout 2

REG1 LM317T

Vin

ADJ 1

Vout 2

REG2 LM337T

D47

1N4148

D48

1N4148

C107

10U/35V

C109

4700U/40V

C108

10U/35V

C110

220U/16V

C112

4700/40V

C111

220U/16V R299

3K65

R301

330R

+15V_AN

-15V_AN

C113

100n

C114

100n

Vin

GND

OUT 3

REG3

78S05

Vin

GND 1

OUT 3

REG7 7905

C115

100N

C116

100N

C117

100N

C118

100N C125

2200U/16V

C126

2200U/16V

+5V

D50

BRIDGE1

Vin

GND

OUT 3

REG4

7805

C127

2200U/25V

C119

100N C120

100N C130

330U/6.3V

+5VD

R302

DGND

Vin

GND

OUT 3

REG5

7812

C121

100N C122

100N C131

220U/16V

+12V

C128

2200U/25V

C129

2200U/25V

Vin

GND

OUT 3

REG6

7805

C123

100N C124

100N C132

330U/6.3V

+5VDISPLAY/RELÆ

+POWER

-POWER

+POWER-REG

-POWER-REG

C133

100N

C134

100N

+15V_AN

-15V_AN

C135

100N

C136

100N

C137

100N

C138

100N

C139

100N

C140

100N

C141

100N

C142

100N

C143

100N

C144

100N

P12

HEADER 2

P13

HEADER 3

-5V

C85

2200U/16V

C86

2200U/16V

JP1

HEADER 20

+15V_AN

-15V_AN

+5V

-5V

+5VDISPLAY/RELÆ

+5VD

JP2

HEADER 16

L POWER FRONT

R POWER FRONT

L POWER REAR

R POWER REAR

CENTER POWER

BIAS-STANDBY FRONT

Q91

BC850

+5VD

Q92

BC850

R303

R304

1K R306

47K

STANDBY FRONT

BIAS-STANDBY

BIAS-STANDBY FRONT

Q93

BC850

R305

1K R307

47K

STANDBY

STANDBY REAR-CEN-SUB

JP3

3.5MM-JACK

+12V LINK

Q95

BD140

Q94

BC850

R308

10k

R309

47K R311

2R2

+12V

R310

22K

12V-LINK1

R313

10R

C87

100N

JP4

3.5MM-JACK

+12V LINK

Q97

BD140

Q96

BC850

R312

10k

R314

47K R316

2R2 R315

22K

12V-LINK2

R317

2R2

R318

2R2

+12VIDEO

R319

10K

Q98

TEMPERATUR

P14

HEADER 4

R320

R326

R327

R328

470R

R329

470R

R330

22R

R331

22R

R332

22R

R333

22R

C88

1000/35V

C94

100N

12345678

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Title

Number RevisionSize

Date: 20-Aug-2003 Sheet of

File:

D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade komponentvärden\Backup of Em1132-4.DDB

Drawn By:

U1A

OPA2134

U1B

OPA2134

-15V

100R

47K

R10

47K

R11

R12

R192K05

R25

511R

-15V

+15V

R31

10K

R50

1MR511M

C13

100P

R13

1K R62

10R

R202K05

R26

511R

-15V

R32

10K

R52

1MR53

C14 100P

R14

R63

10R

S1B

SW SPDT

S1A

SW SPDT

+15V

ZCEN

SDATAI

DGND

SCLK

SDATAO

MUTE

8AINR 9

AGNDR 10

AOUTR 11

VA+ 12

VA- 13

AOUTL 14

AGNDL 15

AINL 16

VD+

PGA2311U

C19

100N

-5V-VOLUME

+5V-VOLUME

C20

100N

C45

10U

R68

10R

+5V-VOLUME

R33

10K

R34

10K

R71

4K7

R72

4K7

S2C

R212K05

R27

511R

-15V

+15V

R35

10K

R54

1MR551M

C15

100P

R15

R222K05

R28

511R

-15V

R36

10K

R56

1MR57

C16 100P

R16

S3C

+15V

ZCEN

SDATAI

DGND

SCLK

SDATAO

MUTE

8AINR 9

AGNDR 10

AOUTR 11

VA+ 12

VA- 13

AOUTL 14

AGNDL 15

AINL 16

VD+

PGA2311U

C21

100N

-5V-VOLUME

+5V-VOLUME

R232K05

R29

511R

-15V

+15V

R37

10K

R58

1MR591M

C10

C17

100P

R17

R242K05

R30

511R

-15V

R38

10K

R60

1MR61

C11

C12

C18

100P

R18

+15V

ZCEN

SDATAI

DGND

SCLK

SDATAO

MUTE

8AINR 9

AGNDR 10

AOUTR 11

VA+ 12

VA- 13

AOUTL 14

AGNDL 15

AINL 16

VD+

U10

PGA2311U

-5V-VOLUME

+5V-VOLUME

P1 5

P2 6

P3 7

VSS

P4 9

P5 10

P6 11

P7 12

INT 13

SCL

14 SDA

VDD 16

P0 4

U14PCF8574A

+5VD

4148

BCV46

R81

470R

R39

10K

R40

10K

R41

10K

R42

10K

R43

10K

+5VD

R44

10K +5VD

R45

10K +5VD

REC 1

OUT FRONT

4 IN

C23

100N

+15V C25

100N

C26

100N

C27

100N

+15V C30

100N

C31

100N

C32

100N

C34

100N

-15V

C37

100N

C38

100N

C39

100N

+5V-VOLUME

C40

100N

C41

100N

C42

100N

-5V-VOLUME

EM1132-2

C43

100N

C46

10U

R69

10R

+5V-VOLUME

R46

10K

R47

10K

R73

4K7

R74

4K7

C44

100N

C47

10U

R70

10R

+5V-VOLUME

R48

10K

R49

10K

R75

4K7

R76

4K7

CENTER IN SURR

SUB IN SURR

L SURR IN

R SURR IN

L POWER FRONT

R POWER FRONT

R64

10R

R65

10R

1S2B

SW SPDT

8S2A

SW SPDT

OUT SURR

L POWER REAR

R POWER REAR

R66

10R

R67

10R

1S3B

SW SPDT

8S3A

SW SPDT OUT CENTER

CENTER POWER

OUT SUB

A0 1

EN 2

V- 3

N2A 5

N3A 6

N4A 7

COMA 8

COMB

N4B

N3B

N2B

N1B

V+

GND

N1A 4

U16 DG409DY

5 IN

3 IN

2 IN

+15V -15V

EX2 A0 1

EN 2

V- 3

N2A 5

N3A 6

N4A 7

COMA 8

COMB

N4B

N3B

N2B

N1B

V+

GND

N1A 4

U17 DG409DY

J10

EX3

J11

EX1

J12

1 IN

+15V -15V

P1 5

P2 6

P3 7

VSS

P4 9

P5 10

P6 11

P7 12

INT 13

SCL

14 SDA

VDD 16

P0 4

U15 PCF8574A

S4A

SW SPDT

S4B

SW SPDT

45 S4C

L FRONT IN SURROUND

R FRONT IN SURROUND

R82

470R

BCV46

+5VD

BYPASS

MUTE STANDBY

SDA

SCL

FROM PROCESSOR BOARD

R TO PROCESSOR

L TO PROCESSOR

U2A

OPA2134

U2B

OPA2134

U3A

OPA2134

U3B

OPA2134

U4A

OPA2134

U4B

OPA2134

U5A

OPA2134

7U5B

OPA2134

U6A

OPA2134

U6B

OPA2134

U7A

OPA2134

U7B

OPA2134

S1C

SW SPDT

R83

470R

BCV46

+5VD

D6 4148

4148

+5VD

MUTE STANDBY FRONT

DGND

FRONT

SURR

CENTER

SUB

8S5A

SW SPDT

1S5B

SW SPDT

S5C

SW SPDT

L FRONT DIRECT

R FRONT DIRECT

R SURR DIRECT

L SURR DIRECT

CENTER DIRECT

SUB DIRECT

R88

470R

BCV46

4148

+5VD

FRONT DIRECT

BYPASS

R872K05

R90

511R

-15V

+15V

R93

10K

R97

1MR98 1M

C68

C69

C72

100P

R85

1K R101

56R

R89 2K05

R91

511R

-15V

R94

10K

R99

1MR100

C70

C71

C73 100P

R86

R102

56R

J13

S6A

SW SPDT

S6B

SW SPDT

+15V

ZCEN

SDATAI

DGND

SCLK

SDATAO

MUTE

8AINR 9

AGNDR 10

AOUTR 11

VA+ 12

VA- 13

AOUTL 14

AGNDL 15

AINL 16

VD+

U19

PGA2311U

C74

100N

-5V-VOLUME

+5V-VOLUME

C75

100N

C77

10U

R103

10R

+5V-VOLUME

R95

10K

R96

10K

R104

4K7

R105

4K7

OUT SURR BACK 1

U13A

OPA2134

U13B

OPA2134

U18A

OPA2134

U18B

OPA2134

SURR BACK 1 IN

SURR BACK 2 IN

SURR BACK 1 DIRECT

SURR BACK 2 DIRECT

J14

OUT SURR BACK 2

R109

10K

+5VD

S6C

J15

CON20

8S7A

SW SPDT

1S7B

SW SPDT

45 S7C

SW SPDT

45 S8C

SW SPDT

8S8A

SW SPDT

1S8B

SW SPDT

S9A

SW SPDT

1S9B

SW SPDT

S9C

SW SPDT

R TO PROCESSOR

L TO PROCESSOR

CENTER IN SURR

SUB IN SURR

L SURR IN

R SURR IN

L FRONT IN SURROUND

R FRONT IN SURROUND

SURR BACK 1 IN

SURR BACK 2 IN

C66

100N

C67

100N

+15V C76

100N

C78

100N

C79

100N

C80

100N

C81

100N

+15V C82

100N

C83

100N

C84

100N

C85

100N

C86

100N

-15V C87

100N

C88

100N

-15V

C89

100N

C90

100N

JP1

HEADER 16

L POWER FRONT

R POWER FRONT

L POWER REAR

R POWER REAR

CENTER POWER

BIAS-STANDBY FRONT

STANDBY REAR-CEN-SUB

JP2

HEADER 20

+15V

-15V

+5V

-5V

+12V

+5VDISPLAY/RELÆ

+5VD

STANDBY REAR-CEN-SUB

BIAS-STANDBY FRONT

12V-LINK1

JP3

HEADER 16

+12V

JP4

HEADER 16

SCN

CLK

DATA

MUTE

CSYNC

14.318+17.734MHZ

SDA

SCL

VIDEO SW COMPONENT

+5V

-5V

+15V

-15V

+5VD

MOSI

MOSO

SCK

SRS

TO SURROUND PCB

TO VIDEO PCB

TO SORROUND PCB

TO POWER AMP PCB

JP5

26PIN

+5VDISPLAY/RELÆ

SCN

CLK

DATA

MUTE

CSYNC

14.318+17.734MHZ

SDA

SCL

VIDEO SW COMPONENT

RS232 PIN10 MAX202

RS232 PIN9 MAX202

12V-LINK2

MOSI

MOSO

SCK

SRS

TO DISPLAY PCB

NC 5

SY 6

LY 7

VCC 8

GND

U11 82B715

SDA 5

SCL 6

NC 7

VCC 8

VSS

U12

24C16

C22

100N C24

100N

C28

100U/6.3V R3

10R

NMF40

JP6

HEADER 6

IIC

MIXED/FULL PAGE MODE

S-VIDEO/COMPOSITE

SDA

SCL

+15V

PRLL5818

+5VD

TEMPERATURE SW

JP7

HEADER 2

+5VD

C1+ 1

V+ 2

C1- 3

C2+ 4

C2- 5

V- 6

T2OUT 7

R2IN 8

R1IN

R1OUT

R2OUT

VCC

GND

T1OUT

T2IN

10 T1IN

U20

MAX202

HEADER 4

NMF40

R79

R80

C29

100N

C33

100N

C35

100N

C36

100N

C48

100N

+5VD

RS232 PIN10 MAX202

RS232 PIN9 MAX202

RS232

R84

10R

R92

10R

C49

100N

C50

100N

12V-LINK2

JP8

3.5MM-JACK

IR-2 R106

100R R107

10R

C51

10U

+15V

12V-LINK1

C52

100N

HREQ

C53

470U/10V

C54

470U/10V

49.9R

R77

49.9R

R78

49.9R

R108

49.9R

R110

49.9R

HREQ

SURR BACK

R111

10R

R112

10R

+5V-VOLUME

-5V-VOLUME

JP9

OUT

GND

IN 8

GND 7

GND 6

NC 5

U21LM78SMD

C57

10U

C58

10U

R113

10K

R114

10K

C55

100U/16V

C56

100U/16V

R115

10R

R116

10R

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