Bryston 7BSST2 Schematic
1
2
3
4
5
6
7
8
9
10
DC FILTER
A A
SST Micro Soft Start R6
PCB
Vdd Vrel
IC2
+
B B
100/16
78L05
C3
C2
1000/25
D1
1N4004
D2
D3
D4
1N4004
1N4004
1N4004
+
TX3
9S
7S
C19
+
TX3 POWER SELECT
N2
3P
2P
1P
BR2
JA
GND
RU5
499R
Vdd
ZCD
C C
R12
Vdd
10K
CU1
100n
R5
2K0
VR1
1KO
MON
D D
C4
100p
S2
LOC
E E
(local = open)
LOC/REM SW
1K0
R6
IC1 PIC16F818
TRD
1
2
3
RST
4
5
PWR
6
REM
7
LOC
8
ZCD
910
RA
RA2
RA
RA3
RA
RA4
RA
RA5
Vss
Vdd
RBO INT
RB7
RB1
RB6
RB2
RB5
RB3 RB4
Vdd
RST
POS2
IC5
REM
5
4
MOC8100
1
2
POS1
TRIG
18
17
16
15
14
13
12
11
MON
LAT
TRIG
POS2
POS1
VS2
VS1
49K9
JP3
R11
MUT
JP2
JP1
J5
ICSP HEADER
RT
20K0
R4
1K0
+
22u/10v
2
LM317LZ
DT
1N5228
CT
IC4
1
Q1
PN100
3
GND
1
2
3
4
SAFETY CRITICAL PARTS
C20
+
N2
120v
240v
120v
CNY17-4
CNY17-4
A/C OPERATING
VOLTAGE SELECTOR
100V
X = JUMPER
Vrel
DRL
E1
+
CA
2u2
MOC3052
IC3
IC6
IC7
XX
120V
220V
1N4004
Z
DA
1N4004
DB
1N4004
DC
1N4004
1N4004
C1
221K
R1
F2
BTB 24800B
Q3
RG1
22R
30K 2W
D5
1N4004
R3
30K 2W
D5a
240V
XX
RL2
1468
DD
5
.22uF/250V
0.1uF/250v
CS
R2
30K 2W
R2a
1N4004
30K 2W
R3a
RM
MUT
499R
100K
RMA
9111316
HANDOFF RELAY
R10
R9
GND
GND
499K
475R
6
N1
PPR
CHAS2
MRLY
LEDGND
PWR
WR1
WB1
JAC
X1
Y1
J4B7B
J3B
JEXT
T1
T2
T3
N
G
L
2
1
9
8
7
6
5
4
3
2
1
POWER INLET
grn/yel 5"
RED WIRE
BLK WIRE
CHASSIS
BREAKER
100V
120V
220V
240V
240V SHOWN
MUTE RELAY
LED GROUND
PWR SW
MUTE RELAY
LED GROUND
PWR SW
OUT
EXT12V ON
IN
7
15A
12A
B1
6.3A
6.3A
ORG
GRY
BRN
WHT
YEL
BLK
4B/7B UNITS ONLY
3B UNITS ONLY
TF 7BSST2-6 PL ITRON
JAC VOLTAGE SELECT
YEL
ORG
BRN
WH
GRY
NC
BLK
PIN
9
8
7
6
5
4
3
2
ORG
WH
YEL
NCNCNC
GRY
BRN
BLK
TX1
RED
BLU
VIO
4B-65VAC
3B-45VAC
CT
4B-65VAC
3B-45VAC
TO BRIDGE
ORG
NC NC
YEL
BRN
WHT
GRY
NC
BLK
FOR AUDIO SECTION SEE
7B SST2 CHANNEL SCHEMATIC
P.O. BOX 2170, 677 NEAL DR. PETERBOROUGH, ON. CANADA K9J 7Y4
PHONE (705) 742-5325 FA X (705) 742-08 82 WWW.BRY STON.CA
7B SST2 PWR OVERVIEW SCParts
Title :
Date : Sheet : Rev :Drawn :
8
1003
ST
9
1
100V120V220V240V
YEL
GRY
ORG
WH
BRN
BLK
NC
TX1
LTD
1
10
1
7BSST2 INPU TS R2 PCB
A A
-30B
+30B
G2
SIG 1
+30A
G1
-30A
B B
SHIELDED CABLE SHIELDED CABLE
C C
-30A
J5
G1
+30A
SIG 1
LOOP
PART OF
+RLY
4B-7B SST PSB R10 PCB
D D
MUTE
GLED
RLED
J3
7BSST-LED-4
LED1
IN4004
IN4004
D4
D3
E E
J2
123
TO J4B7B
SST SSB R6 PCB
TO J6 PSB
SECTION B
1
J3
P3
8
7
6
5
4
3
2
1
P5 CH1
J 3
J3
11
11
+15
10
10
9
+30B
8
7
6
5
4
3
2
-30B
1
-15
J6
123
123
R G
J1 7B
J4
+30B
-30B
G2
SIG 2
SIG 1
+30A
G1
-30A
SERIES UNITS PO2 R0 - NOT USED
SST-MB-R4 PCB
SECTION A
GREEN LED BRIGHTNESS
9
8
7
GRN
6
RED
5
4
3
2
1
G1
GAIN SWITCH
R0
P02
PARALLEL UNITS
USE PO2 - RO
R05 not used
R04 not used
RO2=475R
RO1=R0
604R
R61
1K0
VR3
Q61
2N700
R60
100K
Q62
2N700
2N700
*
100K
D66
914
Q60
BS107A
SECTION A
FLEX 1
2
-30A
G2
R08
475R
1K0
VR1B
PRO ONLY
RO7 REG ONLY
23dB
29dB
R05
2K94
R04
953R
R02
2K94
G1
R01
SW2
953R
R03
475R
R06
1K0
VR1A
1K00
PRO ONLY
U1C
10
BUFF
9
4
C105220p
TL064
13
BUFF
12
11
-15
D61
1N914
R106
2K21
Q63
2N700
C10
220p
G1
D60
R102
10K
R105
VR1
90K9
R54
1K21
Q64
1K21
R55
-33V
29K4
R124
29K4
R50
R125
2K21
R49
1N914
R103
150K
348K
-33V
G1
PSW
1
2
SECTION A SHOWN - CHANNEL SECTION B IDENTICAL
2
3
PARALLEL UNITS DOA68B NOT POPULATED
CB11
CMB
100N
RB11
G2
QB6
QB8
100
172
R07
DB4
914
68R1
1K00
RB13
CB3
RB12
100N
68R1
DB3
914
QB7
182
RB9
G2
CPB
+30A
100N
CMA
100N
RA11
G1
QA6
100
QA8
172
DA4
914
REG ONLY
68R1
RA13
CA3
RA12
100N
68R1
DA3
914
QA7
QA5
182
200
G1
RA9
CPA
100N
8
+15
R132
10K0
6
R130
5
10K0
U1D
14
R35
10K0
G1
U2A
U2B
90K9
R53
15K0
4K75
R44
G1
R46
475K
Q26
Q25
100
100
Q24
Q23
200
200
R45
R47
15K0
4K75
C1
100N
G1
22p
150R
DB2
914
RB10
150R
DB1
914
QB5
200
CB9
22p
150R
CA11
150R
22p
DA2
914
RA10
150R
914
DA1
CA9
150R
22p
R131
10K0
U1B
7
DIFF
R136
475R
R103
49K9
+15
C2
+33V
100N
D7
914
R42
100K
C12
100p
C11
100p
100K
R43
D8
914
C19
22p
RB8
100K
QB4
QB3
200
200
QB1
QB2
100
100
RB6
100K
RA7
RA8
100K
QA4
QA3
200
200
QA1
QA2
100
100
RA5
100K
RA6
CLIPPING INDICATOR
R133
10K0
3
COMP
2
R135
100K
+15
348K
U2D
150K
R100
C18
R40
2K21
22p
Q22
5400
C13
47p
C14
100N
47p
C15
R52
G1
5550
Q21
R41
2K21
G1
3
4
GND
20K0*
RB7
15K
D1B
RB5
15K
15K
D1A
15K
G2
R7B
R6B
20K0*
R5B
C4
20K0*
68u
RB1
3K48
D2B
914
914
20K0*
R4B
C3 68u
RF4
20K0*
CB4
RF3
22p
20K0*
-30B
G1
20K0*
R7A
R6A
20K0*
20K0*
R5A
C1 68u
3K48
RA1
D2A
914
914
R4A
C2
20K0*
68u
RF2
20K0*
CA4
RF1
22p
20K0*
+
+
+
+
G1
GY WIRE
100R
R2A
C2F
470p
470p
C1F
R1A
100R
61
JS1
7
2
8
3
9
4
10
5
+30A
U1A
D100
1
914
R108
C119
R101
RL1
R15
1K0
220p
C105
+
R66
2u2
100K
U2C
SG
J2
J 2
10
P3
C27
100P
5550
Q27
C22 68p
R39
7K15*
Q28
R48
5400
C28
4K75
532R
5550
100P
Q20
+
C17
3K32
2200u
R58
G1
+RLY
2K0
VR2
DRL
914
OUT1
100R
9
P4
8
RB1
7
G1
6
P1
5
OUT1
4
M4
3
M3
2
RY2
1
RY1
914
D3
R57
1K74
4
5
GY WIRE 11"
GY2
GY1
RGS
CGS
100N
GY WIRE 9"
100R
+30B
-30B
4B-7B SST PSB R10 PCB
BAL
INPUT SWITCH
SE
-
SW1
+
SE
J1
P1
1
1
2
2
3
3
SST COMBO R1 PCB
SST PWR525-R4 PCB
SECTION A
BIAS TEST POINTS
J3
RS1
RS2
RS3
RS4
10K0
10K0
10K0
P1
P3
B1
B2
M3
M1
T2
T1
SW1
10K0
6E6E-65V9E
SG
T
SECTION A
SG
R25
470p
C7
1N914
470p
D3
R37
1K50
C8
Q19
R29
JE182
R38
4K75
SG
5
G2
R28
1K0
2K0
2K0
1K0
P5
12345
PART OF
MUTE
GLED
RLED
Q12
5550
Q16
301R
R26
5550
Q10
R36
301R
5400
Q14
6
7
8
9
10
SECTION B
J5
SST-MB-R4 PCB
SST PWR525-R4 PCB
SIG 2
J 1
J2
J3
11
J 3
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
J6
123
TO J3 LED PSB
J 2
10
9
8
7
6
5
4
3
2
1
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SST OUTRIGGER-R3 PCB
MJL21193QPMJL21194
QN
RN
1
3
2
JC1
C6470u
+
5400
Q17
301R
R34
R32
1K5
R24
1K0
R22
150R
C2 220p
5400
MJE15031
R16
220p
C1
R21
150R
R23
9E
1K0
R31
R33
1K5
R6
5550
301R
Q11
+
22R1
C5 470u
0R20
R9
22R1
0R20
R3
49R9
R19
Q2
Q18
MJL21193
R5
49R9
R10
49R9
MJE15030
Q9
MJL21194
Q4
R18
0R20
49R9
R8
RP
0R20
QP
MJL21194
SST OUTRIGGER-R3 PCB
6
0R20
RP
W3W2W1W4
PART OF 4B-7B SST PSB R10 PCB
D6
3K9 2W
R5
MJL21194
Q1
0R20
1N4004
R15
D1
D2
R17
0R20
1N4004
Q3
MJL21193
W4
W1W2
RN
0R20
QN
MJL21193
P1
+65v
14
13
12
L1 2uH
11
10
10R 3W
9
R12
8
R11
7
10R 3W
6
5
4
3
-65v
2
1
W3
7
68R 2W
R6
+RLY
R1
J 1
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DF
914
1K65 2W
CP1
CP2+CP3
+
+
10,000u
100N
C7
10,000u
+
+
CM1
CM2+CM3
C1
100N
R3
3K9 2W
R2
68R 2W
SECTION A
P.O. BOX 2170, 677 NEAL DR. PETERBOROUGH, ONTARIO CANADA K9J 7Y4
PHONE (705) 742-5325 FAX (705) 742-0882 WWW.BRYSTON.CA
Title :
7B SST2 CHANNEL SCHEMATIC
Date :
1003
PART OF
4B-7BSST PSB R10 PCB
J 1
14
13
12
11
10
9
8
7
6
5
4
3
2
1
J6
123
+65v
GND
-65v
BLACK WIRE
SECTION A
C6
1N4754
100N
+
Q3
100R 2W
MJE15030
D5
+40v
1N4737D41N4737
+30B +30A
CP4
+
10,000u
10,000u
+
CM4
RBM
OUT
D1
C3
+
1N4754
330/50
Q1
100R 2W
MJE15031
-40
DB
914
1N4737
1N4737
D3
D2
Drawn : Sheet
8
C4
330/50
Q4
R7
7815
DE
914
RBP
+65v
20K
GND
20K
-65v
C2
GND
33/35
Q2
R4
7915
DA
914
-30A-30B
LTD
ST 1
+15
33/35
+
C5
DG
DC
+
J2
PART OF SST-OUT PCB
BP BLK
WB1
RED WIRE
BLUE WIRE
VIOLET WIRE
914
J2
RED WIRE
WR1
914
INVERTED OUTPUT
7BSST BRIDGE R 2 P C B
+65v
+_AC
-65V
PART OF SST-OUT PCB
BP RED
NON-INVERTED OUTPUT
C1 10N
C2 10N
BR1
C3 10N
C4 10N
SPK -
TF 7Bsst2 - R6
120V
BLK
TO J3 ON SOFT START PCB
100VGRY
65 VAC
RED
0V
WHT
BLU
120V
BRN
CT
100VYEL
VIO
65 VAC
ORG
0V
AC
SPK +
TX RED
TX BLUTX BLU
TX VIO
-15
Size :
B
Rev :
9
10
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