C-Audio ST Series User manual

Title

Number RevisionSize

Date: 1-Jul-1999 Sheet of

File:

D:\PROTEL\ST\MAINA.SCH

Drawn By:

CMOD

220p

RMOD

390k

IN4148

DMOD1

D41

IN4004

D40

IN4004

CHOKE

R32

10k

R31

10k

C15

4700u

C14

4700u

IN4004

FS2

T10A

FS1

T10A

+15

-15

C20

15p

100u

BOTTOM

WIPERTOP

100u

RV1

-15

+15

C12

deleted

C13

deleted

C19

100n

C18

100n

4p7

10p

33p

82p

R30

560R

R29

560R

R28

560R

R27

560R

R26

560R

R25

560R

R24

560R

R23

560R

R22

5k1

R21

5k1

R20

39k

R19

39k

R18

5k1

R17

5k1

R16

150R

R15

150R

R14

10k

R13

10k

R12

68k

R11

R36

110k

120k

10k

220R

6k2

3k3

10k

3k3

IC2

NE5534

IC1B

NE5532

8 4

IC1A

NE5532

RV2

C11

100u

R10

10k

10u

C10

100p

IN4148

ZD1

9v1

ZD2

9v1

TR10

BC184L

TR9

BC214L

IN4148

TR1

J162 TR2

J162 TR3

J162 TR4

J162

TR5

K1058 TR6

K1058 TR7

K1058 TR8

K1058

-VE A

+VE A

R35

10R R108

10R R34

10R

R33

10R

C16

47n C17

22n

RL1

IN4148

+15

RLY CNTRL

OP/A

OP/A 0V

OP/A MON

C/T A

BRIDGE OUT

I/P - A

I/P + A

I/P 0V

RL4

R120

8k2

R121

8k2

C61

680p

C60

680p

C71

10p C70

10p C69

10p C68

10p

1kV

SEE NOTE

2.5W

2.5W 2.5W

2.5W

NOTE

CIRCUIT SHOWN APPLIES TO ST600

FOR ST400 TR4 & TR8 ARE NOT FITTED AND

R10 = 12k

R19 & R20 = 30k

LMB

3 4

C1022

ST 600/400 PCB

BIAS

CMRR

0dB Sensitivity Modification

Change R5 from 3k3 to 6k65

Change R6 from 6k8 to 13k

Title

Number RevisionSize

Date: 1-Jul-1999 Sheet of

File:

D:\PROTEL\ST\MAINB.SCH

Drawn By:

C64

10p

C65

10p

C66

10p

C67

10p

RL4

R123

8k2

C63

680p

C62

680p

R122

8k2

BRIDGESTEREO

CHOKE

R67

10k

R68

10k

C38

4700u

C37

4700u

D14

IN4004

D15

IN4004

FS4

T10A

FS3

T10A

+15

-15

C28

15p

C27

100u

BOTTOM

WIPERTOP

C26

100u

RV3

-15

+15

C35

Deleted

C36

Deleted

C33

100n

C31

100n

C30

4p7

C25

4p7

C24

10p

C23

33p

C22

33p

C21

82p

R66

560R

R65

560R

R64

560R

R63

560R

R62

560R

R61

560R

R60

560R

R59

560R

R58

5k1

R57

5k1

R56

39k

R55

39k

R54

5k1

R53

5k1

R52

150R

R51

150R

R50

10k

R49

10k

R47

68k

R48

R45

120k

R44

10k

R43

220R

R42

6k2

R41

3k3

R40

3k3

R39

10k

R38

3k3

R37

3k3

IC4

NE5534

RV4

C34

100u

R46

10k

C29

10u

C32

100p

D11

IN4148

D10

IN4148

ZD3

9v1

ZD4

9v1

TR20

BC184L

TR9

BC214L

D12

IN4148

D13

IN4148

TR11

J162 TR12

J162 TR13

J162 TR14

J162

TR15

K1058 TR16

K1058 TR17

K1058

TR18

K1058

-VE B

+VE B

R69

10R R109

10R R71

10R

R70

10R

C39

47n C40

22n

RL2

D18

IN4148

+15

RLY CNTRL

OP/B

OP/B 0V

OP/A MON

C/T B

I/P - B

I/P + B

I/P 0V

D42

IN4004

D43

IN4004

IC3A

NE5532

IC3B

NE5532

DMOD2

1N4148

RMOD

390k

CMOD

220p

BIAS

CMRR

INOUT

NOTE

CIRCUIT DIAGRAM SHOWN APPLIES TO ST600

FOR ST400 :

TR14 & TR18 ARE NOT FITTED

R46 = 12k

R55 & R56 = 30k

STi 600/400 PCB

C1022 3

LMB

2 4

SEE NOTE

2.5W

2.5W2.5W

1kV

0dB Sensitivity Modification

Change R41 from 3k3 to 6k65

Change R42 from 6k8 to 13k

Title

Number RevisionSize

Date: 1-Jul-1999 Sheet of

File:

D:\PROTEL\ST\MAIN1.SCH

Drawn By:

CIRCUIT SHOWN APPLIES TO THE ST600 VERSION

FOR THE ST400 R76 = 7k5

LIVE OUTLIVE IN

SG64

PEAK B

PEAK A

+15

-15

R106

R107

1k5

R110

56R

C54

100u

C53

100u

C52

470u

C51

470u

D35

IN4004

D34

IN4004

D33

IN4004

D31

IN4004

Vin

GND 1

-15V 3

IC7

MC7915T

Vin

GND

+15V 3

IC6

MC7815T

-15

ZD10

6V8

ZD9

6V8

C50

100p

C45

100p

TR22

BC214L

TR21

BC214L

+15

10 13

IC5D

LM339

R95

470k R96

470k

R98

470k R101

470k

R97

10M R100

10M

C47

470n C48

470n ZD7

12v

ZD8

12v

D26

IN4148

D27

IN4148

D29

IN4148

-15

+15

C44

10u

D22 IN4148

D24

IN4148

D21

IN4148

D20

IN4148

ZD6

12v

ZD5

12v

C43

470n

C42

470n

R83

220k

R84

470k

R81

10M

R79

10M

R82

470k

R80

470k

R78

470k

R77

470k

-15

+15

C46

1uF

C41

1uF

D25

IN4148

D19

IN4148

R89

47k

R90

4k7 R91

R94

R88

R75

18k

R76

11k

R74

1MR73

4k7

R72

47k

IC5B

LM339

814

IC5C

LM339

312

IC5A

LM339

MON A

O/P

MON B

O/P

AC 1

18V

AC 2

CON

FAN -

FAN +

POWER LED

BRIDGE SW2

BRIDGE SW1

BRIDGE LED

LED COMMON

THERMAL/A

THERMAL A

RLY CONT A

RLY CONT B

N/C

112 C

SEE NOTE

SOFT START

NOTE:

STi 600 / 400 PCB

C1022 3

1 4

LMB

Title

Number RevisionSize

Date: 1-Jul-1999 Sheet of

File:

D:\PROTEL\ST\ST1000\C1048.S03

Drawn By:

C55A

C54A

FEEDBACK

+ MT

GT4A

SC2A

GT3A

SC1A

GT2A

ZD12A

12V

ZD13A

12V

C22A

47p

C21A

100n

R30A

100R

R31A

330R

R29A

100k

R28A

330R

R27A

100k

D14A

BAV21

D13A

BAV21

C24A

100p

C23A

100p

C33A

680p

C32A

680p

D12A

BAV21

D11A

BAV21

D22A

IN4148

D9A

IN4148

R73A

8k2

R71A

82k

R70A

82k

R67A

8k2

R72A

8k2

R69A

2k7

R68A

2k7

R66A

8k2

GND

TR19A

BC184L

TR18A

BC214L

ZD11A

12V

ZD10A

12V

D2A

IN4148

D1A

IN4148

C31A

100uF VR2A

R65A

150R

R64A

150R

C30A

100uF

C29A

100uF

ZD8A

15V

ZD9A

15V

GND

C14A

100uF R22A

4k7

R17A

3k3/5W

R21A

1k5

C18A

100uF

C15A

100uF

ZD7A

30V

ZD6A

15V

ZD4A

30V

ZD5A

15V

C17A

10p

R19A

330k

IC1A

NE5532

R23A

10k

R20A

120k

R16A

330k

R18A

680R

C13A

100uF

BOTTOM

WIPER

IC1B

NE5532 TOP

C12A

100uF

R15A

220R

C11A

4p7

RV1A

R14A

6k2

C10A

10p

C9A

33p

C8A

33p

C7A

82p

R13A

3k3

R11A

3k3

R12A

10k

R9A

3k3

R10A

3k3

SCN

BLUE

RED

GT1A

R25A

1k5

R24A

4k7

R26A

3k3/5W

C19A

100uF

- MT

R80A

30k

BRIDGE R85A

2K2

C16A

100uF

D25A

IN4148

R83A

100R

+15

-15

D26A

IN4148

R84A

100R

C52A

47p

R82A

33k

R81A

33k

C53A

680n

RV3A

220k

FEEDBACK

C1048

LMB

CHANNEL A DRIVER STAGE

OUT

+ MT

- MT

Title

Number RevisionSize

Date: 1-Jul-1999 Sheet of

File:

D:\PROTEL\ST\ST1000\C1048.S04

Drawn By:

R84B

100R

D26B

IN4148

-15

+15

R83B

100R

D25B

IN4148

FEEDBACK

+ MT

GT4B

SC2B

GT3B

SC1B

GT2B

ZD12B

12V

ZD13B

12V

C22B

47p

C21B

100n

R30B

100R

R31B

330R

R29B

100k

R28B

330R

R27B

100k

D14B

BAV21

D13B

BAV21

C24B

100p

C23B

100p

C33B

680p

C32B

680p

D12B

BAV21

D11B

BAV21

D22B

IN4148

D21B

IN4148

R73B

8k2

R71B

82k

R70B

82k

R67B

8k2

R72B

8k2

R69B

2k7

R68B

2k7

R66B

8k2

GND

TR19B

BC184L

TR18B

BC214L

ZD11B

12V

ZD10B

12V

D2B

IN4148

D1B

IN4148

C31B

100uF VR2B

R65B

150R

R64B

150R

C30B

100uF

C29B

100uF

ZD8B

10V

ZD9B

10V

GND

C14B

100uF R22B

4k7

R17B

4k7

R21B

1k5

C18B

100uF

C15B

100uF

ZD7B

30V

ZD6B

15V

ZD4B

30V

ZD5B

15V

C17B

10p

IC1A

NE5532

R23B

10k

R20B

120k

R18B

680R

C13B

100uF

BOTTOM

WIPER

IC1B

NE5532

TOP

C12B

100uF

R15B

220R

C11B

4p7

RV1B

R14B

6k2

C10B

10p

C9B

33p

C8B

33p

C7B

82p

R13B

3k3

R11B

3k3

R12B

10k

R9B

3k3

R10B

3k3

SCN

BLUE

RED

GT1B

R25B

1k5

R24B

4k7

R26B

4k7

C19B

100uF

- MT

R80B

36k

BRIDGE

C52B

47p

C16B

100u

C54B

C55B

R19B

330k

R16B

330k

R82B

33k

R81B

33k

C53B

680n

RV3B

220k

FEEDBACK

C1048

LMB

STAGE

+ MT

- MT

CHANNEL B DRIVER

Title

Number RevisionSize

Date: 1-Jul-1999 Sheet of

File:

D:\PROTEL\ST\ST1000\C1048.S05

Drawn By:

DRAWING OF OUTPUT STAGE

COMPONENT REFERENCES SHOULD

BE SUFFIXED WITH A OR B

FOR RESPECTIVE CHANNELS

R77

2k2

R75

2k2

R47

560R

R44

560R R45

560R R46

560R

R40

560R R41

560R R42

560R R43

560R

R36

560R R37

560R R38

560R R39

560R

R32

560R R33

560R R34

560R R35

560R

TR13

J162

TR14

J162

TR15

J162

TR16

J162

TR9

J162

TR10

J162

TR11

J162

TR12

J162

TR5

K1058 TR6

K1058 TR7

K1058 TR8

K1058

TR1

K1058 TR2

K1058 TR3

K1058 TR4

K1058

C46

10P C47

10P C48

10P C49

10P

C42

10P C43

10P C44

10P C45

10P

C38

10P C39

10P C40

10P C41

10P

C34

10P C35

10P C36

10P C37

10P

D15

BYT30P400

D16

BYT30P400

R74

2K2

R76

2K2

R78

3R3

R79

3R3

C50

100n

C51

100n

C- MT

C- HT

CON

C+ HT

C+ MT

GT2

GT3

SC1

SC2

GT1

GT4

5 5

LMB

C1048

OUTPUT STAGE A/B

2.5W

4WCmod2Cmod1

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