C Audio SRDRVR1 schematic

File:

D:\PROTEL\SR\SRDRVRA.SCH

Drawn By:

XLR1

L BASHAM

XLR2

REAR PANEL MOUNTED

1

2

2

1

+18V

LABEL

-18V

D19
18V

D18
18V

3

3

SMOOTHING AND
+-18V SUPPLY

JACK1

C27
100u

35V

C28
100u

35V

R49

6K8/1W

R62

6K8/1W

2

COAX2SYM

C3
47u

100V

C2
47u

100V

BLUE
RED
SCR

R56
1K

R59
1K

FRONT PANEL MOUNT

LED1
PEAK

LABELLABEL

+ RAIL

C8
100n

GND

C7
100n

LABEL

- RAIL

C31
220p

ORANGE/BLACK

RED/BROWN

R57
9K1

R58
9K1

C30
220p

R48
4K7/1W

RED

D16
1N4148

R51
330p

LABEL

N DRIVE

LABEL

GND

R52
2K7

+ RAIL

D17
1N4148

R53
82K

ORANGE

RED

R54
9k76

TL071

TR19
BF423

TR20
BF422

VR2
1K

CMRR
TRIM

7 4

1N4148

R46
1K

C25
10u/63V

D15

R61
22R

6

R55
1K

3

COAX2SYM

20K LOG

C15
100n

R26

*

C34
10p

+18

IC1

3
2

-18

R60
10K

R47
4K7

LABEL

FEEDBACK OUTPUT

VOL1

R37
2K7

R50

27K/1W

C29

10u

63V

TR18
1085

R44
100R

R45
2K7

R43
330

TR21
BF423

R42
100R

R38
2K7

TR17
1085

R41

C24
100u

25V

*

R40
22R

C21
100n

R36
47K

R39
47k

BRIDGE

FEED IN

R34
27K/1W

TR12
BF422

R31
10K

C22
33p

R32
150

TR16
BF423

TR14
BF422

R33
150R

C19
100n

TR11
BF422

C17
33p

TR13

BF422

R29
150

TR15
BF423

R28
47R

C16
10n

C18
100n

R18
4K7/1W

TR10
BF423

R24
27K/1W

R16
4K7/1W

TR8
BF422

R22
2K7

R21
2k

VR1
1K

IQ
TRIM

R25*C9

TR9
BF423

D14
9V1

D13
9V1

TR7
BF422

R23

150R

RG6RG5RG4RG3RG2RG1

C13
100n

47u

100V

TR6
BF422

C5
47u C4

100V

MOSN6MOSN5MOSN4MOSN3MOSN2MOSN1

MOSP6MOSP5MOSP4MOSP3MOSP2MOSP1

D12
1N4148

D11
6v8

D10
6v8

D9
1N4148

100n

1N4004

1N4004

D F1

D F2

Q2
2SA2238

R17
330R

R15
330R

Q3
2SA968

10R

RCHOKE

CHOKE1

R GATES
1K

GREEN

ORANGE

BLACK

PINK

C1
33n

R11
10R/2.5W

LABEL

+ RAIL

LABEL

N DRIVE

LABEL

FEEDBACK

LABEL

P DRIVE

LABEL

- RAIL

LABEL

GROUND

LABEL

YELLOW

MODEL R41 R26 IQ

SR404 1K2 220K 150mA
SR606 1K2 280K 150mA
SR707 1K 280K 150mA

LABEL

- RAIL

RG1 TO RG12 = 560R

LABEL

P DRIVE

BLACK

PINK

MOUNTED ON HEATSINK

DIAGRAM SHOWS SR404 OUTPUT STAGE. SR606 AND SR707 OUTPUT STAGES
DIFFER IN THE NUMBER OF OUTPUT DEVICES PER RAIL. THE SR606 AND
SR707 USE 8 DEVICES PER RAIL. ADDITIONAL DEVICES ARE CONFIGURED
SIMILARLY WITH 560R GATE RESISTORS AS SHOWN.

RG12RG11RG10RG9RG8RG7

Title

Number RevisionSize

A2

Date: 1-Jul-1999 Sheet of

SR DRIVER A

SRDRVR1 2

3 3

File:

D:\PROTEL\SR\SRDRVRB.SCH

Drawn By:

L BASHAM

REAR PANEL MOUNTED

JACK1

LED5

+18V

-18V

1

3

2

COAX2SYM

C8
100n

C7
100n

BLUE
RED
SCR

LABEL

+ RAIL

- RAIL

2

2

3

1

BRIDGE SWITCH

REAR PANEL MOUNTED

R LED

RED ORANGE/RED

4

COAX2SYM

RED

GND

D19
18V

D18
18V

12K/1W LABEL

SMOOTHING AND
+-18V SUPPLY

C27
100u

35V

C28
100u

35V

R49

6K8/1W

R62

6K8/1W

C3
47u

100V

C2
47u

100V

RED/BLUE

+ RAIL

LABEL

CHAN A
OUTPUT

XLR1

XLR2

FRONT PANEL

LABEL LABEL

LABEL

1K

R59
1K

FRONT PANEL MOUNT

LED1
PEAK

GND

C31
220p

RED/BLACK

R57
9K1

R58
9K1

C30
220p

R48
4K7/1W

R54
10K

TL071R56

TR19
BF423

TR20
BF422

IC1

R47
4K7

C34
10p

2

R60
10K

LABEL

VR2
1K

CMRR
TRIM

+18

7 4

-18

1N4148

R46
1K

C25
10u/63V

D15

PINK

C1
33n

R11
10R/2.5W

YELLOW

LABEL

+ RAIL

LABEL

N DRIVE

LABEL

FEEDBACK

LABEL

P DRIVE

LABEL

- RAIL

LABEL

GROUND

LABEL

OUTPUTFEEDBACK

RED

D16
1N4148

D17
1N4148

R61
22R

6

R55
1K

3

COAX2SYM

20K LOG

C15
100n

R26

*

VOL1

R37
2K7

R50

24K/.5W

GND

C29

63V

R51
330p

LABEL

N DRIVE

LABEL

R52
2K7

+ RAIL

R53
82K

ORANGE

RED

10u

R43
330

R29

R32

TR12
BF422

R31
10K

C22
33p

150

TR16
BF423

TR14
BF422

R33
150R

C19
100n

TR11
BF422

C17
33p

TR13

BF422

TR21
BF423

R44
100R

TR18
1085

R45
2K7

RG1 RG2 RG3 RG4 RG5 RG6

R42
100R

R36
47K

TR17
1085

R39
47K

R41

*

C24
100u

25V

R40
22R

C21
100n

R38
2K7

MOSN2 MOSN3 MOSN4 MOSN5 MOSN6 MOSN7

MOSP2 MOSP3 MOSP4 MOSP5 MOSP6 MOSP7

LABEL

BRIDGE
RED

R34
22K

150

TR15
BF423

R28
47R

C16
10n

C18
100n

R18
4K7/1W

TR10
BF423

R14
24K

.5W

R16
4K7/1W

TR8
BF422

R22
2K7

R21
1K5

VR1
1K

R25

*

TR9
BF423

IQ

TRIM

D13
9V1

TR7
BF422

D14
9V1

150R

C13
100n

C9
47u

100V

Q2
2SA22383

D12
1N4148

TR6
BF422

C5
47u

100V

R23

D11
9V1

D10
9V1

D9
1N4148

C4
100n

D F1

1N4004

D F2

1N4004

R17
330R

R15
330R

Q3
2SA968

R GATES
1K

CHOKE1

10R

RCHOKE

ORANGE

BLACK

GREEN

MODEL R41 R26 IQ
SR404 1K2 220K 150mA

SR606 1K2 280K 150mA
SR707 1K 280K 150mA

LABEL

- RAIL

LABEL

P DRIVE

RG7 RG8 RG9 RG10 RG11 RG12

BLACK

PINK

MOUNTED ON HEATSINK

DIAGRAM SHOWS SR404 OUTPUT STAGE. SR606 AND SR707 OUTPUT STAGES
DIFFER IN THE NUMBER OF OUTPUT DEVICES PER RAIL. THE SR606 AND
SR707 USE 8 DEVICES PER RAIL. ADDITIONAL DEVICES ARE CONFIGURED
SIMILARLY WITH 560R GATE RESISTORS AS SHOWN.

Title

Number RevisionSize

A2

Date: 1-Jul-1999 Sheet of

SR DRIVER B

2SRDRVR2

3 3