Bryston 9BSST2 Schematic
1
2
3
4
5
6
7
8
9
10
BREAKER
GND
JPWR
G
N
RG1
POWER INLET
A A
120 VAC-12A
240 VAC-6.3A
RED WIRE
BLK WIRE
R1
221K
C1
L
L
BTB 24800B
Q3
.1uF/250V
470R 3W
R9
CS
IC3 MOC3052
.1uF/250v
46
SAFETY CRITICAL PARTS
B B
12
RU5
499R
Vdd
C C
D D
JICSP
1
2
3
4
5
ICSP HEADER
RST
POS2
POS1
GND
TRD
RST
10K
R12
PWR
REM
LOC
S1
ZCD
LOCAL-REMOTE SW
REM
5
GND
GRN1
RED1
MOC8100
C19
DC FILTER
BR2
N2
C20
+
F1
22R1
JTEST
T1
3FD-212
7S
9S
1N4004
1N4004
1N4004
D1
D2
D3
78L05
IC2
C3
100u 16V
IC1 PIC16F818
1
RA2
2
RA3
3
RA4
4
RA5
5
Vss
6
RBO INT
7
RB1
8
RB2
910
RB3 RB4
IC5
C2
1000u 25v
18
RA
17
RA
16
RA
15
RA
14
Vdd
13
RB7
12
RB6
11
RB5
1
24
EXT PWR DETECTOR
1K0
CU1
100n
R4
MUT
MON
LAT
TRIG
POS2
POS1
VS2
VS1
+
1N4004
D4
1P
Vrel
LM317LZ
2
49K9
IC4
2K0
R11
1
120V
120V
CNY17-4
R5
JA
240V
IC6
ZCD
VR1 1KO
RT
4K99
CT
22u/25
3
2u2
STANDBY POWER
VOLTAGE SELECT
R2
1N4004
12
5
MOM SW OPT
+
CA
30K 2W
4
ZERO CROSS
THRESHOLDTURN ON
C4 100p
DT
T
1N5228
+
JP3
JP2
JP1
DA
1N4004
DB
1N4004
DC
1N4004
DD
1N4004
R3
30K 2W
D5
1K0
R6
TT
Q1
PN100
DRL
Vrel
XX
240V
X
UNIT VOLTAGE
240V
1N4004
220V
9BSST MICRO SSB R3 PCB
SAFETY CRITICAL PARTS
120V
WIRE
JUMPERS
JBUS
Vdd
MUTE CONTROL
100K
RMB
RM
Z
120V
X
Q2PN100
MM
499R
111316
RL2
HANDOFF
14 68
100V
4
3
OUT
2
IN
1
JREM
EXT12V
100R
BLK
120V
SAFETY CRITICAL PARTS
ORG
0V
VIO
120V
43 VAC
BRN
BLU
WHT
CT
0V
RED
43 VAC
AC
-
AC
+
SAFETY CRITICAL PARTS
UNIT VOLTA GE SELECT
PS
18U
T
N2
17
S
16
15
R
14
Q
13
P
12
N
11
M
10
L
9
K
8
J
7
H
MUTE
LEDG
PWR
6
F
5
E
4
D
3
C
2
B
1
A
LEDG
PS BUS
U
18
T
17
S
16
R
15
Q
14
13
P
12
N
11
M
10
L
9
K
8
J
7
H
6
F
5
E
4
D
3
C
2
B
1
A
WG
0V
0V
L2
PWR
GND
GND
MUTE
P1 BUS
15
R
14
Q
13
P
12
N
11
M
10
L
K
J
H
F
E
D
C
B
A
P1 CH1
15
R
14
Q
13
P
12
N
11
M
10
9
8
7
6
5
4
3
2
1
L
9
K
8
J
7
H
6
F
5
E
4
D
3
C
2
B
1
A
9BSST-MB-R5 PCB
CHANNEL 1
CHANNEL 2 IDENTICAL
MUTE
REDGN1R1G
TF 9BSST-7
F1
F2
RGG1
GY WIRE
CHANNEL 3 IDENTICAL
9
CHASSIS
CHANNEL 4 IDENTICAL
CHANNEL 5 IDENTICAL
SAFETY CRITIC AL PARTS
PWR SWITCH
J1
CH1
R G
CH2
R G
CH3
R G
CH4
R G
CH5
R G
9BSST-LED-R2 PCB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
254PW14E
P1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
1G
4
1R
5
2G
6
2R
7
8
3G
9
3R
10
4G
11
4R
12
5G
13
5R
14
P5 BUS
MUTE
9BSST BUS R4 PCB
P1 CH5
15
R
14
Q
13
P
12
N
11
M
10
L
9
K
8
J
7
H
6
F
5
E
4
D
3
C
1R1G
2
B
1
A
9BSST-MB-R5 PCB
MUTE
REDGN
TF 9BSST-7
F1
F2
RGG5
100R
BLK
120V
ORG
0V
VIO
120V
43 VAC
BRN
BLU
WHT
CT
0V
RED
43 VAC
AC
-
AC
+
ST
LTD
9
10
E E
1
2
3
FOR AUDIO SCHEMATIC SEE
9BSST2 CHANNEL SCHEMATIC
4
5
Title :
File :
6
Date :
P.O. BOX 2170, 677 NEAL DR. PETERBOROUGH, ON. CANADA K9J 7Y4
PHONE (705) 742-5325 FAX (705) 742-0882 WWW.BRYSTON.CA
9B SST2 PWR OVERVIEW SCParts
Sheet : of Rev :
1
1003
7
Drawn :
8
1
2
3
4
5
6
7
8
9
10
SST-2RCA PCB
JS1
SST-XLR-3 PCB
INPUT BUFFER (6dB)
A A
ONLY
C3A
470p
C4A
470p
29dB
23dB
17dB
J5
POLARITY
GAIN
SW2
SST2-SWITCH R3 PCB
BAL
INPUT
SE
B B
RG4
475R
SW1
C1A
+
C2A
+
VR1
+
+
1K0
R1A
R3A
100R
100R
PRO
RG2
1K0
3K01
RG3
SG
-180
0
SW3
R2B
123
C3B
47p
123
P5
R1B
20K0
20K0
R2C
R2D
20K0
20K0
J1
3
2
1
R1D
20K0
R1C
20K0
C3A
47p
P1
J2
P2
3
3
2
2
1
1
J3
P3
3
3
2
2
1
1
J1X
D2
BUF OUT
PWR IN
1+
1-
914
12
3
D1
914
PN200
Q3
R5
R2
R3
15K
100K
PN100
Q1
PN200
R4
15K
100K
+28V
PN200
Q2
Q4
PN100
-28V
R1
C6
150R
100N
Q5
SG
JE182
Q7
R8
D5
914
914
C5100N
SG
D3
PREO
914
Q8
JE172
C4
100N
68R
D4
68R
R9
R7
150R
914
D6
Q6
R6
150R
FLEX
J4
5
4
3
2
1
P4
SG
INPUT - POL ARITY - G AIN SWITCHES
1N4004
QR34
LM337M
15000uf
R85
C47
+
47u
C48
+
47u
R86
15000uf
QR33
LM317M
D17
1N4004
REGULATORS
D18
WIRE
W3
4K75
4K75
D19
1N4004
R84
221R
C50
C49
1N4004
D16
221R
R87
-28v
+28V
+60V
+
330u
330u
+
IN-
29K4
3
R63
2
13
R64
29K4
-28v
12
1N4742
IN+
+16V
D13
U1A
U1D
100K
100K
11
MUTE
BUFF
BUFF
R97
R98
1
10K0
R78
TL064
10K0
R79
14
-16v
C38
+
2u2
Q37
R96
100K
C C
SAFET Y C R IT ICAL PA RT S
P1 CH
R
Q
P
N
M
L
K
J
H
F
E
D
D D
C
B
A
EARTH/CHASSIS
PWR TRANSFORMER
15
14
13
12
11
10
F2A-250V
9
F1
8
7
F2A-250V
6
F2
5
4
3
MUTE
2
RLEDGLED
1
WIRE
120V
ORG
BRN
WHT
BLK
120V
0V
0V
TF 9BSST-7
VIO
43 VAC
BLU
CT
RED
43 VAC
RG97
100R
C60 100N
AC
GND ISO
+
AC
-
-60V
C44
10N
C45
10N
AC
AC
C42 10N
C43 10N
+
W2
WIRE
C41
-
+
+
C46
SG
OFFSET
R62
49K9
-33V
-28V
+28V
INPUT
COAX
R19
499R
SG
WB1
C15
2200u
RF23
CLIP INDICATOR
6
U1B
5
R80
10K0
2N700
100K
R95
MUTE CONTROL
VR3
LOOP
7K15
10K0
10K
R90
C13
220p
+
499R
R22
DIFF
R21
2K21
R77
CF1
7
Q36
100p
750R
2N700
9BSST-MB-R5 PCB
R59
49K9
R24
R61
PN100
Q9
+
R29
PN200
Q11
R34
10K0
R76
C39
2u2
475K
1K21
4K75
4K75
R92
Q34
PN100
15K0
R25
15K0
C36 220p
10
9
R75
100K
+33V
C18
100p
R23
PN100
PN200
Q12
C20
100p
D41
-33V
U1C
1N4004
SG
DM26
1N4004
C23
22p
D40
914
100K
Q10
R33
100K
914
C21
22p
COMP
8
4
D14
1N4742
D28
D27
1N5238
Q35
PN100
SW4
THERMAL LIMIT
R42
4K75
RR30
+28V
T
R30
Q14
PN200
MUTE
RL1B
PN100
Q15
914
D12
R93
1N5236
R94
200K
C19
100N
1K21
D7
2K21
2K21
+16V
MUTE RLY
1N4752
SG
4K75
R32
1K82
1K0
D9
1N4752
10K0
R73
D26
D22
1N4004
1N4004
RL1C
1K65
C16
1u5
+
C24
47p
R55
MJE182
Q22
R56
4K75
914
PN100
BIAS
VR2
R31
3K32
SG
C17
+
1u5
R27
1K65
Q33
PN100
200
D6
Q13
R70
D10
1N4004
R72
604R
R90
10K
1K21
R71
1K0
R26
Q17
C22
47p
PN100
D21
R60
340K
R54
1K82
Q18
PN100
Q23
R40
2K0
R39
2K0
Q16
200
POWER AMPLIFIER (23dB)
C31
22R1
+
R53
301R
R52
1K5
R50
Q20
PN200
R36
1K0
C26
SG
470p
470p
PN100
Q26
C27
1K0
R37
R67
1K5
R65
301R
R57
C32
+
22R1
Q32
PN100
VR4
1K0
Q31
PN100
+60V
R46
1K0
1K0
R49
301R
R83
22R1
R69
150R
C34
220p
R66
RLED
GLED
R51
150R
PN100
C30
220p
MJE15031
Q19
R58
R48
Q21
R47
MJE15030
MUTE
PR3
0R22
22R1
Q27
MJL21193
MJL21194
Q28
22R1
Q24
Q30
MJL21193
Q29
MJL21194
22R1
0R22
RL1A
SG
BLK WIRE RED WIRE
PR2
PR4
PR5
2uH
C12
100N
OUTPUT
PR6
+60V
BIAS TP
+60V
-60V
J10
D8
4004
0R22
0R22
4004
D5
-60V
L1
PR1
4R7
100R
OUT
BP REDBP BLK
E E
Title :
1
2
3
4
5
6
Date : Sheet : Rev :Drawn :
P.O. BOX 2170, 677 NEAL DR. PETERBOROUGH, ON. CANADA K9J 7Y4
PHONE (705) 742-5325 FAX (705) 742-0882 W WW.BRYSTON.CA
9BSST2 CHANNEL SCHEMATIC
1003
ST 1 1
7
8
LTD
9
10
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