Bryston 875-B Schematic

10987654321

E

D

J1

17

PGND

16
15
14

POUT

13
12

MUTE

11

PREO

10

PWRIN

9

-IN

8

SGND

7

+IN

6

C

TEMP2

5

RLY+

4

RLY-

3

RLYB

2

RLYA

1

B

PGND

POUT

PWRIN

PREO

-IN

+IN

SGND

RLYA

RLYB

RLY+

TEMP2
RLY-

CB1
47p

WR1

RB14

49R9

RB2

10K0

RB1

4K99

CB2
220p

SW1

67L080

R14

LED's

+48V

PGND

SGND

LGND

-48V

RLY-

RED

GRN

+33V

-33V

RED
GRN
RLY­LGND

-33V
SGND
+33V
MUTE

+48V

-48V

PGND

J2

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

BUFFER INPUT DOA-68

33p

DB1

RB10

DB2

33p

RB9

150R

QB5
200

914

150R

914

QB6
100

RB11

150R

CB3

100N

914
DB3

914

JE182

DB4

QB7

RB12

68R

RB13

68R

QB8
JE172

R31

29K4

RB5

R45

R44

15K

QB1

QB3

RB7

15K

150K

150K

RB8

100K

RB6

100K

QB2

QB4

100

200

+24V B

CB4

CB5

R46

49K9

R47

49K9

-24V B

RB3

10K

100

200

RB4

1MEG

MUTEMUTE

0R

T

3
2

13
12

VR1

-24V A

RIN

1K0

BUFF

BUFF

10K

RM1

49K9

CIN
220p

TUNING LOOP

29K4

U1A

TL084

U1D

TL084

11

RP1

R32

49K9

ROF

R20

2K21

WB1

1

14

R33

R34

10K0

10K0

475K

200
C17
22p

R35

R7

100

2200u/10v

R24

6
5

10K0

4K75

Q8

CF2

Q9

4K75

R12

+

R36

DIFF

10K0

R13

15K0

15K0

Q10

U1B

TL084

+

470u/16V

R4

D42

Q4
100

1K0

1K0

Q12
200

R15

R22

914

100R

R3

C5
470p

C6
470p

R28

100R

R29

22R1

22R1

R43

MJE15031

R16

267R

R23

267R

MJE15030

1K21

Q3

11

1

47p

C13

1K5

Q5
200

914

Q11
100

1K5

R6

Q6
JE172

D3

R25

12
13

RF1
14K70

CF1 47p

C11 220p

U2D

TEMP

4011

C8
47p

C4

R9

2K21

VR3

2K0

R10

5K6

47p

200

100

Q14

220p

R8

100K

R21

100K

C9

47p

D7

914

RMU

4K75

100N

D8

914

C10

+24V A

C14

Q7

100

RF2

1K000

200

C15

220p

-24V A

2

U2C

8

MUTE

4

U1C

TL084

9

4011

914

R40

D40

8

C30 220p

R37

7

10

10K0

R39

475R

COMP

9

R38

100K

1K0

U2B

5

10

6

4011

C31
220N

-24V A

-24V B

C3

R2

475R

R26

475R

+

C7470u/16V

U2A
4011

4

+24V A
+24V B

CM3

100N

147

R1

100R

Q2

L2 2uH

Q13

0R

R11

R27

100R

CM1

100N

0R15

Q1
MJL21193

RL1

10R

MJL21194

D41

3

VR2

CM2

100N

PR1

R5

PR2

914

1K0

Q15

0R

0R15

CP1

100N

WR1

D1

4004

COUT

100N

D2

4004

R42

604R

R41

499R

CP2

100N

CP3

100N

RT2

10K0

RT3

10K0

CP4

100N

RT1

10K0

RT4

10K0

DP4

DP1

DP2

DP3

DM1

DM2

DM3

J3

1
2
3
4
5

BCS105

5248

5239

5239

5248

5239

5239

5248

TP1

TP2

E

D

C

B

A

11531B4B 11531B4B 11531B4B 11531B4B 11531B4B

1 2 3 4 5 6 7 8 9 10

REV 2 - CHANGES
RB3 - CHANGE TO 10K
RB4 - CHANGE TO 1MEG
REMOVE DB3A IN BIAS CHAIN

Drawn :

LTD

Rev :

D.M.

P.O. BOX 2170, 677 NEAL DR. PETERBOROUGH, ONTARIO CANADA K9J 7Y4
PHONE [phone] FAX [phone] WWW.BRYSTON.CA

Title :

875 LEFT CHANNEL R2

File : Left channel R2.sch Sheet : 1 of 1
Date :

11-Sep-2003

Size :

R1

A

B

10987654321

E

D

J1

17

PGND

16
15
14

POUT

13
12

MUTE

11

PREO

10

PWRIN

9

-IN

8

SGND

7

+IN

6

C

TEMP1

5

RLY+

4

RLY-

3

RLYB

2

RLYA

1

B

PGND

POUT

PWRIN

PREO

-IN

+IN

SGND

RLYA

RLYB

TEMP1

RLY+
RLY-

CB1
47p

WR1

RB14

49R9

RB2

10K0

RB1

4K99

CB2
220p

SW1

67L080

LED's

+48V

PGND

SGND

LGND

-48V

RLY++

RED

GRN

+33V

-33V

RED
GRN
RLY++
LGND

-33V
SGND
+33V
MUTE

+48V

-48V

PGND

J2

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

BUFFER INPUT DOA-68

RB5

RB3

10K0

15K

QB1

100

200

QB3

RB7

RB4

15K

1MEG

R5

MUTEMUTE

0R

RB8

100K

RB6

100K

QB2

QB4

100

200

+24V B

CB4

CB5

-24V B

33p

DB1

RB10

DB2

33p

RB9

150R

QB5
200

914

150R

914

QB6
100

RB11

150R

CB3

100N

914
DB3

914

JE182

DB4

QB7

RB12

68R

RB13

68R

QB8
JE172

R31

29K4

VR1

RIN

1K0

-24V A

RP1

49K9

10K

ROF

RM1

49K9

R20

2K21
CIN
220p

WB1

TUNING LOOP

R32

29K4

475K

200
C17
22p

R24

R7

4K75

Q8

100

CF2

2200u/10v

Q9

4K75

+

470u/16V

R4

Q4
100

1K0

1K0

Q12
200

R15

R22

100R

R3

C5
470p

C6
470p

R28

100R

R29

22R1

MJE15031

R16

267R

R23

267R

MJE15030

22R1

Q3

47p

C13

1K5

Q5
200

914

Q11
100

1K5

R6

Q6
JE172

D3

R25

RF1
14K70

CF1 47p

C11 220p

C8
47p

C4

R9

2K21

VR3

2K0

R10

5K6

47p

200

100

Q14

220p

R8

100K

R21

100K

C9

47p

D7

914

RMU

4K75

100N

D8

914

C10

R13

15K0

Q10

+24V A

C14

Q7

100

RF2

1K000

200

C15

220p

-24V A

R12

+

15K0

C3

R2

475R

R26

475R

+

C7470u/16V

R1

100R

Q2

L2 2uH

Q13

R27

100R

RL1

10R

PR1

0R15

Q1
MJL21193

Q15
MJL21194

PR2

0R15

WR1

D1

4004

COUT

100N

D2

4004

RT2

10K0

RT3

10K0

RT1

10K0

RT4

10K0

J3

1
2
3
4
5

BCS105

TP1

TP2

RLY++

T

R45

R44

150K

150K

R46

R47

49K9

49K9

BUFF

BUFF

U1A

TL084

U1D

TL084

1

R33

10K0

10K0

R34

R35

14

R36

10K0

10K0

DIFF

U1B

TL084

R37

7

10K0

R39

6
5

475R

10

9

C30 220p

COMP

4

R38

100K

U1C

TL084

3
2

13
12

11

U2D

12

TEMP

13

4011

U2C

8

MUTE

9

4011

D40

8

914

R40

1K0

D42

11

10

R43

147

1K21

914

1

U2A
4011

2

U2B

5
6

4011

4

+24V A

D41

3

+24V B

C31
220N

-24V A

-24V B

CM3

CM1

100N

CM2

100N

100N

VR2

914

1K0

CP1

100N

R42

R41

604R

499R

CP2

100N

CP3

100N

CP4

100N

DP4

DP1

DP2

DP3

DM1

DM2

DM3

5248

5239

5239

5248

5239

5239

5248

E

D

C

B

A

11531B4B 11531B4B 11531B4B 11531B4B 11531B4B

1 2 3 4 5 6 7 8 9 10

REV 2 - CHANGES
RB3 - CHANGE TO 10K0
RB4 - CHANGE TO 1MEG
REMOVED DB3A IN BIAS CHAIN

Drawn :

LTD

Rev :

D.M.

P.O. BOX 2170, 677 NEAL DR. PETERBOROUGH, ONTARIO CANADA K9J 7Y4
PHONE [phone] FAX [phone] WWW.BRYSTON.CA

Title :

875 RIGHT CHANNEL R2

File : Right channel R2.sch Sheet : 1 of 1
Date :

11-Sep-2003

Size :

R2

A

B

54321

TO FUSE PCB
& POWER SW

J

WS2

J9 J8

1 2 12

RW10RRW2

WB1

AC HI

WS1

AC LO

WW1

33000uF/6.3V

33000uF/6.3V

+

0R

C20

GSIB2540

BR1

I

H

C2

10n

G

F

1N4004

D13

30K/2W

30K/2W

PR3

1N4004

DM

PR2

D9

1N4004

E

D

C

U1

R3

301K

R1

200K

R17
1K5/2w

100V
120V

J1

OPT 'A'

D7
1N4758

100V
120V

9 11 13

RD

40K0

RC

40K0

RB

40K0

RA

40K0

100V 220V

U3

IL4108

B

1

OPT 'C'

+C21

3R

R14

R4

267K

2 3 4

R17A

1K5/2w

220V

240V

D6
1N4758

OPT 'B'

J2

RL1

J3

240V120V

.22uF/250V

R30

221K

JPWR

33R

R13

1N4737

D5

1N4004

C3

50n

TDA 1085C

R2

200K

1N4004

D8
1N4762

220V
240V

16

1468

D10A

R19

2K0

R27

C30

GN L

22R

R15

R6

475KR7475R

D2

5 6 7 8

D1

267R

R18

R16

100K

100uF/160V
D11
1N4759

D10

1N4004

1N4004

475R

18K2

F1

R9

475R

Chassis

F3

IL4108

U2

910111213141516

1N4740

D3

+

C1
47uF/35V

+

C6

100uF/35V

+

C7

100uF/35V

R5

100K

+

C8
D12
1N4759

16

1N4004

1 4 6 8

DA

PN100

R26

Q5

18K2

DC

100R

R23

R25

+

10K0

R28

Q4

PN100

499K

R10

0.1uF/250v

BTB 24800B

Q3

R24

1K0

PN100

Q1

12K1

R11

1u5

C5

+

91113

1N4004

1N4004

49K9

R22

1u5+C10 2u2

C9

C11

C4

F2

LED1

DLED

1N4004

D4

49K9

R8

18K2

R12

Q2 PN100

RL2

F4

1N4004

DD

200R

200R

2u2

+

J

I

H

G

F

E

JMUTE

1
2
3

JREM

4

OUT

3
2

IN

1

12V TRIGGER

DB

D

C

R20

R21

B

Rev :

Size :

A

R2

A

P.O. BOX 2170, 677 NEAL DR. PETERBOROUGH, ONTARIO CANADA K9J 7Y4

A

1 2 3 4 5

J5

1650-2J61650-2J71650-2

File : 875 Soft Start R3.Sch Sheet : 1 of 1
Date :

PHONE [phone] FAX [phone] WWW.BRYSTON.CA

Title :

875 SOFT START

12-Dec-2003

LTD

Drawn :

10987654321

E

JXLR

1
2
3

IND / BRIDGE

S2

A

B

D

C

D

E

R4

1K0

BP4

F

62-D02-6G

BP3

R5

10K00

J1R

RLYA

C

RLYB
RLY­RLY+
TEMP1
+IN
SGND

-IN
PWRIN
PREO

POUT

PGND

B

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17

EDAC 345.034

1K0R3475R

VR2

R7

1K00

BAL / SE

BP2

S1

A

B

C

D

E

F

62-D02-6G

BP1

P4

R1

4K99

R1A

4K99

R2

4K99

R2A

P3

R6

475R

VR1

4K99

1K0

4
5
6
7
8
9
10
11
12

CES-112-01-S-S

J1L

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

EDAC 345.034

RLYA
RLYB
RLY­SGND

-IN
+IN
+IN

-IN
SGND
RLY+
RLYB
RLYA

RLYA
RLYB
RLY­RLY+
TEMP2
+IN
SGND

-IN
PWRIN
PREO

POUT

PGND

RIGHT CHANNEL

LEFT CHANNEL

E

D

C

B

-

- +

FC159802

FC159801

+

FC159801

FC159802

OUTPUT LEFTOUTPUT RIGHT

Size :

A

1 2 3 4 5 6 7 8 9 10

P.O. BOX 2170, 677 NEAL DR. PETERBOROUGH, ONTARIO CANADA K9J 7Y4
PHONE [phone] FAX [phone] WWW.BRYSTON.CA

Title :

875HT IN-OUT PCB

File : HT_IN-OUT R2.Sch Sheet : 1 of 1
Date :

8-Oct-2003

LTD

Rev :

Drawn : D.M.

A

A

10987654321

E

D

JPS2

C

SSW-109-01-S-D

JLED2

1

RED8

2

GRN8

3

RED7

4

GRN7

5

RED6

6

GRN6

7

RED5

8

GRN5

9

COM

TSW-109-07-G-S

JCH8/4R

1

R18

100R

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18

LGND_Z34

-33V_Z34
SGND_Z34
+33V_Z34
+48V_Z34

-48V_Z34
PGND_Z34

2
3

RLY++

4
5
6
7

+33V +33V +33V +33V +33V +33V +33V +33V

8
9
10

+48V +48V +48V +48V +48V +48V +48V +48V

11
12
13
14
15
16

PGND PGND PGND PGND PGND PGND PGND PGND

17

EDAC 345.034

JCH7/4L

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

EDAC 345.034

R5

100R

JCH6/3R

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

EDAC 345.034

JCH5/3L

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

EDAC 345.034

R7

100R

JLED1

1

COM

2

RED4

3

GRN4

4

RED3

5

GRN3

6

RED2

7

GRN2

8

RED1

9

GRN1

TSW-109-07-G-S

JCH4/2R

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

EDAC 345.034

JCH3/2L

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

EDAC 345.034

E

JCH2/1R

1

RED2RED3RED4RED5RED6RED7RED8

2

R8

100R

3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

EDAC 345.034

GRN2GRN3GRN4GRN5GRN6GRN7GRN8
RLY++RLY++RLY++

ZONE 1ZONE 2ZONE 3ZONE 4

JCH1/1L

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

EDAC 345.034

RED1
GRN1
RLY-RLY-RLY-RLY­LGNDLGNDLGNDLGNDLGNDLGNDLGNDLGND

-33V-33V-33V-33V-33V-33V-33V-33V
SGNDSGNDSGNDSGNDSGNDSGNDSGNDSGND

MT1MT2

-48V-48V-48V-48V-48V-48V-48V-48V

LGND_Z12

-33V_Z12
SGND_Z12
+33V_Z12
+48V_Z12

-48V_Z12
PGND_Z12

CHASSISCHASSIS

JPS1

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

SSW-109-01-S-D

D

C

2

BR2 BRIDGE

B

WRP

WBM

TXCT

1

1

1

1

4

R9

100R

C5 100N C6 100N

10R

R14

3

D6

1N973

C4

33u/35V

R16

1K0

Q4

+

D8

4004

MJE15030

33u/35V

+

1N973

D5

R13

10R

C2

Q5

1K0

R15

0R

R19

D7

4004

MJE15031

RM4

100K

QM4

2N5550

RM3

100K

R12

QM3

2N5550

RM2

499R

33u/35V

C3

+

1N973

D3

R4

10R

JPRSW

1

MUTE

2

LGND

3

COM LED

TSW-103-07-G-S

Q2

1K0

100K

QM1
2N5550

D10

Q3
2N5550

zener

QM2
2N5550

RM1

100K

R6

100K

D9

1N970

C7

+

2u2/35V

0R

R20

D4

4004

MJE15031

R3

10R

R2

D1

1N973

C1

33u/35V

R1

1K0

Q1

+

D2

4004

MJE15030

R11

R10

10R

10R

A

M1
BRYSTON LOGO

P.O. BOX 2170, 677 NEAL DR. PETERBOROUGH, ONTARIO CANADA K9J 7Y4
PHONE [phone] FAX [phone] WWW.BRYSTON.CA

Title :

File : Bus Power R1.Sch Sheet : 1 of 1
Date :

1 2 3 4 5 6 7 8 9 10

11-Sep-2003

2

BR1 BRIDGE

1

R17

TSW-104-07-G-S

100R

JPWR

3

4

1
2
3
4

875 BUS POWER

1

1

1

LTD

Drawn :R1D.M.

WRP

WBM

TXCT

Rev :

Size :

B

B

A