Primare A31.2 Manuel utilisateur

PRIMARE

A31.2 Power Amplifier

Service Manual

1. Schematics and Pcb.

2. 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 AB

1 2 3 4 5 6 78

7654321

Title

Number RevisionSize

Date: 27-Feb-2007 Sheet of

File: C:\WORK\..\EM1121A5.SCH Drawn By:

- CONFIDENTIAL -

100K

2K2

330R

R10

10K

330R

R11

330R

R12

330k

R13

330k

R14

5K6

330R

100N

R15

4.7R 2W

30V

BD677A

PMLL4148

R16

680R

PIN P1

R17

100R

BC546B

BC846 Q4

BC846

BC856

2SK117GR

Q10

2SC4793

R19

430R

R20

33k

100K

Q11

2SC4793

470P

Q12

2SA1837

Q13

2SA1837

R21

68R

R22

280R

R18

270R

R23

100R Trim

NO1

1N02 8

2C2 7

NC1

3NC2 6

COIL

4COIL 5

Relay power 8A/24V

Q14

2SA1943

Q16

2SC5200

470P

R24

1K4

2SC2705

Q82SA1145

2K2

30V

+48VR

-48VR

25XØ7.8-1.1MM

R25 1.8R

R261.8R

R27 2.2R

R28 2.2R

HEADER 2

R29

0.22R

R30

0.22R

R33

150K

1N4148

470N

R34

R35

R36

120K

R37

D4 1N4148

BC846

2V7

R38

56K

+18VR

-18VR

+18VR

R39

1K2 3W

Q15

2SA1943

Q17

2SC5200

R31

0.22R

R32

0.22R

C10

C11

JP3

HEADER 6

C14

220U/80V

C15

220U/80V

Vin

ADJ

Vout 2

REG1

LM317T

Vin

ADJ 1

Vout 2

REG2 LM337T

R40

15K

R41

15K

R42

402R

R43

402R

BDY17D

D10

BDY17D

C16

10U/50V

C1710U/50V

C18

22U/50V

C19

22U/50V

+48VR

-48VR

+56VR

-56VR

C20

C21

C22

C23

200MA

1N4148

STANDBY

C24 nc

C25 nc

C26 nc

C27 nc

JP2

HEADER 2

D11

D12

D13

D14

PMLL4148

R44

6K8

470N

OPA134UA

XLR NC3FAH R47

R48

4.3K

R49

4.3K

R50

11K

R52

2.7K

R51

11K R53

2.7K

R54

100R

+15VR

-15VR

S7A

SW DPDT

S7B

SW DPDT

D15

D16

D17

D18 C12

C13

Vin

Vout

Adj

4n.c. 5

Vout 6

Vout 7

n.c. 8

REG3

LM317LM

Vout

1Vin

2Vin

3Adj

4n.c. 5

Vin 6

Vin 7

n.c. 8

REG4

LM337LM

R55

2k4 R57

220R

R56

2k4

R58 220R

+15VR

-15VR

C28

22U/50V

C29

22U/50V

C30

10U/50V

C31

10U/50V

R59 15K

R60 15K

R6115K

R6215K

C32

100N

C33

100N

D19

D20

D21

D22

R63

4R7

R64

4R7

R65

100K R66

100K

R67

100K

C34

220U/80V

C35

220U/80V

7 4

741C

U3 741C

+18VR

-18VR

C36

100N

C38

C39

NET

EM1121B5.SCH

R101

100K

R102 100K

R104

2K2

R106

330R

R110

10K

R107

330R

R111

R108

330R

R112

330k

R113

330k

R114

5K6

R109

330R

C101

100N

C102

100N

C103

100N

R115

4.7R 2W

Z101

30V

Q101

BD677A

D101

PMLL4148

R116

680R

PIN P101

R117

100R

Q102

BC546B

Q103

BC846 Q104

BC846

Q107

BC856

Q109

2SK117GR

Q110

2SC4793

R119

430R

R120

33k

R103

100K

Q111

2SC4793

C104

470P

Q112

2SA1837

Q113

2SA1837

R121

68R

R122

280R

R118

270R

R123

100R Trim

NO1

1N02 8

2C2 7

NC1

3NC2 6

COIL

4COIL 5

K101

Relay power 8A/24V

C105

C106

Q114

2SA1943

Q116

2SC5200

C107

470P

P102

R124

1K4

Q105

2SC2750

Q1082SA1145

R105

2K2

Z102

30V

+48VL

-48VL

L101

25XØ7.8-1.1MM

R1251.8R

R126

1.8R

R127

2.2R

R1282.2R

J102

HEADER 2

R129

0.22R

R130

0.22R

R133

150K

D103

1N4148

C108

470N

R134

R135

R136

120K

R137

D1041N4148

Q106

BC846

D106

2V7

R138

56K

+18VL

-18VL

+18VL

R139

1K2 3W

Q115

2SA1943

Q117

2SC5200

R131

0.22R

R132

0.22R

C110

C111

JP103

HEADER 6

C114

220U/80V

C115

220U/80V

Vin

ADJ

Vout 2

REG101

LM317T

Vin

ADJ 1

Vout 2

REG102 LM337T

R140

15K

R141

15K

R142

402R

R143

402R

D107

BDY17D

D108

BDY17D

D109

BDY17D

D110

BDY17D

C116

10U/50V

C117

10U/50V

C118

22U/50V

C119

22U/50V

+48VL

-48VL

-56VL

+56VL

-56VL

C120

C121

C122

C123

S103

200MA

S104

200MA

D105

1N4148

STANDBY

C124 nc

C125 nc

C126 nc

C127 nc

JP102

HEADER 2

D111

D112

D113

D114

D102

PMLL4148

R144

6K8

C109

470N

U102

OPA134UA

J101

XLR NC3FAH R147

R148

4.3K

R149

4.3K

R150

11K

R152

2.7K

R151

11K R153

2.7K

R154

100R

+15VL

-15VL

S107A

SW DPDT

S107B

SW DPDT

D115

D116

D117

D118

C112

C113

Vin

Vout

Adj

4n.c. 5

Vout 6

Vout 7

n.c. 8

REG103

LM317LM

Vout

1Vin

2Vin

3Adj

4n.c. 5

Vin 6

Vin 7

n.c. 8

REG104

LM337LM

R155

2k4 R157

220R

R156

2k4

R158220R

+15VL

-15VL

C128

22U/50V

C129

22U/50V

C130

10U/50V

C131

10U/50V

R159 15K

R160 15K

R16115K

R162 15K

C132

100N

C133

100N

D119

D120

D121

D122

R163

4R7

R164

4R7

R165

100K

R166

100K

R167

100K

C134

220U/80V

C135

220U/80V

7 4

U101

741C

U103

741C

+18VL

-18VL

C136

100N

C138

C139

-56VR

R45 15K

R46 15K

R69 15K

R70 15K

R7115K

R72 15K

R73 15K

R74 15K

POWER-AMP

EM1121

1/2 BN

R182100R

R180

13k

R181

47K

S4025AQ

S403

5AQ

S401

5AQ

S400

5AQ

R80

13K

R82

100R R81

47K

C145 100N/100V C146

100N/100V

C148

100N/100V

C147

100N/100V

C140

100N C137

100N

C40

100N C37

100N

+15VR -15VR

+15VL -15VL

C141

100N/50V

C142

100N/50V

C41

100N/50V

C42

100N/50V

C46

100N/100V

C48

100N/100V

C45

100N/100V

C47

100N/100V

C143

10U/50V

C144

10U/50V

C43

10U/50V

C44

10U/50V

C04

22P

C03

22P

C02

22P

C01

22P

R183

10K/2W

R184

10K/2W

R83

10K/2W

R84

10K2W

123456

54321

Title

Number RevisionSize

Date: 27-Feb-2007 Sheet of

File: C:\WORK\..\EM1121B5.SCH Drawn By:

R301

1M D301

1N4148

D302

1N4148

C301

10U/16V

R302

100K

R304

47K

D303

6.2V

R305

47K

Q301

BC846B

Q304

BC856B

C302220U/35V

R303

100K

Q302

BC846B

C303

100NF

C304

1NF

C305

1NF D304

1N5404

D305

1N5404

C306

3300/6.3V

R307

NTC 7R

R309

VDR275

R310

470K

P301

HEADER 2

C307

3300/6.3V

R308

NTC 7R

P302

HEADER 2

P303

HEADER 2

S301 3.15A

S302

3.15A

S303

3.15A

NO1

1N02 8

2C2 7

NC1

3NC2 6

COIL

4COIL 5

K301

RELAY DPDT3

JP301

HEADER 2

P304

HEADER 2

JP302

HEADER 2

R311

22K

R312

47K

R315

100K

R316

100K

R313

47K

R317

3MEG

C308

100N

R318

487R

Q303

BC846B

R314

47K

C309

10U/16V

+9V

JP303

3.5MM-JACK

JP304

3.5MM-JACK

D306

KB2855

U301

741C

R319

T301

TRANSF33X28

D307

BDY17D

D308

BDY17D

D309

BDY17D

D310

BDY17D

R323

390R

R324

390R

R325

10K R327

4K7

D312

PMLL4148

D311

PMLL4148

Vin

Vout

Adj

4n.c. 5

Vout 6

Vout 7

n.c. 8

REG301

LM317LM

R328

2k2

R329

390R

STANDBY

JP305

HEADER 2

Q306

BC846B

R330

100K

R331

47K

D313

PMLL4148

R332

Q307

BC856B

R339

10K

Q308

BC846B

Q309

BC846B

Q310

BC846B

Q311

BC856B

R342

100K

R341

100k

R344

100k

R343

100k

R446

R345

100k

+SW

R340

JP307

JP306

JP308

STANDBY

EM1121

2/2 BN

C310

330N

C311

330N

IDLE CURRENT ADJUSTMENT

1: Connect the voltmeter to JP2 ( JP102)

ADJUST R23 ( R123 ) TO 20mV

2. After the power has been on for 60 min

readjust R23 (R123)

3. Remove the voltmeter.

Instructions apply to the Right channel.

Instructions given in brackets apply to the

Left channel.

TECHNICAL SPECIFICATIONS

Output power per channel 120W/8 ohm,200W/4 ohm

(1X400W)

Output impedance 0.03 ohm

DC offset <5mV

Frequency response <10HZ-100KHZ -3db

Signal to noise A-weighted 100 dB

THD+noise <0.08%

Standby <3.5W

DIMENSIONS (WXDXH) 430X385X100 MM

Weight 16Kg

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