Text preview for : Bryston 14B R8 sch.pdf part of Bryston 14B 14B amplifier
Back to : Bryston 14B R8 sch.pdf | Home
WG3
REVISION 8 FEB 14, 2001 14B-MB PCB - CHANGED R50 - R51 TO 1K00 14B-MB PCB - CHANGED R48 TO 523R 14B-PWR PCB- CHANGED R3,R5,R6,R10 TO 49R9
U1,U2,U3 +16V C103 .1u .1u C105
14B-MB
1N4750
14B-PWR
F2 RXE010 22P C18 R44 4K75 2K21 R40
+33V +43V
1,2 J2 7 J3 A RXE010 6 J2 F2 2N 5400 Q17 470/16 C6 300R R34 R9 22R R3
J1 J1
D103
S +43 15 F GA 6 GND
3K0 2w 301R R102
1N4752
INPUT, MAIN + POWER PCB'S
SCHEMATIC DIAGRAM 14BSCHR8 5 Nov 2001 ST 9
14B-MB PCB R10 - CHANGED REGULATOR CIRCUITS ADDED F2 & F3 REV 9 NOV 5, 01-ADD R25 TO INPUT SWITCH BOARD D101
+
A
D39
1u5/35
C39
+
3,4 J2 0R20 5W 0R20 5W 49R9 L 10
1N4752
R39
R19
C101 1u5/35
D7
1K65 Q22 2N 5400
R20
J1
1K0 R24
A
68p 1K5 R32 C27 10 2N 5550 9 J3 J3 D3 R37 2K0 2N 5550 Q12 Q16 J3
220p
C2 Q18 MJE 15031
Q2
MJL Q1 21193
MJL 21193 MJL 21194 Q5
100K
Q27
2N 5400
150R R22
R42
Q6
MJL 21194
J1
M,N,P 11,12,13
+60
100P C12
6
0R20 5W
0R20 5W
10K0
1M0
R17
1K0
R7
Q26
R25
PN 100A
PN 100A
D2 -IN C6
Q25
MJE 182 R38 4K75 1K0 R28 Q19 68P C22
R5 1K0 R30 R16 300R
R14 R15
D1
1N4004
49R9
C7
47p
J2
2
1
3
4
6
5
7
8 10K0
R51
D1
1K0 C18
R49 2K21 15K R47 R46 15K
470p
A 7K15 R48 536R 100N R39 8 D3 RXE010 R57 1K74 J3 A R29 1K0 C8 5 J3
C13
R12 10R 3W 4R7 5W R11 L1 2uH J1
H,J,K 7,8,9
1K0
R27
J2
2 C A
1 1
3 2
4 3
6 C C
5 1
7 2
8 3
RCA JK
R18
1K0 R50
Q1
Q3 415 BC
15K
R9 R12
413 BC
R10
15K 100K
R13
2200u/10v C17
O OUT
220p
1K0
R26
470p
14B-RCA5 INPUT SEL BAL/BAL+6/UNBAL
150R
S1 R23
100K
47pf P5 C3 R8 Q5 200A PN 413 BC Q2 Q4 C4 415 BC 47pf
47K5 B C J3 2 1 1 2 3 3 4 5 6 7 8 150R
C1 47pf C22 R22
29K4
Q6 R11
Q24
PN 200A
PN 200A
Q23
BIAS Q20 1K TRIM 4K42 R58 2N 5550 VR2
F1
SECTION 'A'
300R R36 TP1 49R9 R10 0R20 5W 0R20 5W R13 R16
R25 1K0
C14
R52 4K75
R125 47p 29K4 R124 100P C11
100R 3W
150R
C5 100N
100A PN
150R
47pf C2
4K99
J3
R6
A
C15
2
1
3
4
5
6
7
8
C11 .1u Q7 182 MJE R15
R15 4 J3 2N 5400 Q14
100K
R43
Q8 R16 172 MJE
C10 .1u
Q21 2N 5550
Q28 68p C28
2N 5400 3 J3
68R
68R
Q10
2N 5550
Q9 R21 150R C1 220p MJE 15030 Q8 MJL 21194 Q7
Q3
MJL 21193
Q4
MJL 21193
D2
1N4004
4K99
+33V
-33V D8
MJL 21194 SW1
67F075
J1
C,D,E 3,4,5
-60
1K5
R31
1K65
4K99
3K32
C3
1K0 R23
22R1
VR1 475R
C1
1K
R19
WG3
GRN/YEL
G5V-2-H1-24V
R45 4K7 C19 22P 2K21
470u
MUTE RLY RL1 +
2880
P4
R20
R41
2N 5550 F1 RXE010
Q11
R33 200R 0R20 5W 0R20 5W C5 470/16 R8 22R R6 R17 R18 49R9 TP2
T 4K99
C2
2
R 3
S 1
JUMPER REG
J1 1
GND1
J1 1 2 3 4 5 1M0 R126
-33V
6
J4
T
XLR-1/4" JK.
J1
2
2 3
U2 = TLO62CN
R111 R136 750R 100K R135 +16 +16 68R1 R110 4K99 R108 1K0 C101 2u2 R109 10K A
1 2 6 5 5 2 1
1N4004 G5V-2-H1-24V
J3 J3 J1 B
MUTE
C21
100R
CH1
OUT
13 12
14
U3
R131 10K
R132 10K
4 5
14B BALIN
CHASSIS LINK
4 9
U3
R0
CHASSIS
8
D100
U2
7
5
J2 J4 J3 J3 F2 RXE010 470/16 Q17 2N 5400 C6 200R R34 1K5 R9 22R 0R20 5W 0R20 5W SW1 R20
67F075
T
J1
14 R 2 B
T
6 100R
CH2
U3 = TLO64
R130 10K
6 5
U3
7 11
1K0 R133
10
J1
CLIP
OUT
7 8 CH2 A
C21
220p R134 C119 100K
J1
XLR-1/4" JK.
GND2
9 10
2 3
1M0 R127
U3
1 4
-16 10K R129
J1
4K99
C2
2 T
3 R
P4
1 S
470u
REG JUMPER
+16
+33V
MUTE RLY RL2 +
2880
D2
49R9
C1
475R
R20
A 22R1
+43V R19
22P 301R
R27
+
R40
R52 4K75
R144 1K0
R3
R19
2K21
1K65
3K32
4K99
C18 4K75
1N4752
1K0 R24
C3
VR1 4K99
1K
D27
6
J2 R32
Q2 C2 220p MJE 15030 MJL 21193 Q1 MJL 21193 Q6 MJL 21194 Q5
J1
M,N,P 11,12,13
+60
R44
C27
1u5/35
+33V
MJE 182 .1u Q7
-33V 68R
R15
D7 Q22 2N 5400 68p C27 10 Q27 2N 5550 9 J3 J3 2N 5550 Q12 Q16 2N 5400
68R
R16
MJE 172 .1u
150R R22
Q18
MJL 21194
1N4004
D1
R53 90K9
4K99
R6
C11
Q8 D3 D4
C10
INVERTER
+33V 47pf C11 C1 .1u
100K
J2
2
1
3
4
5
6
7
8
J3
C1 47pf PN 200A Q5 C3
R42
0R20 5W
0R20 5W
100N C5
100K
150R
15K
49R9
47pf PN 100A D6 C4 Q6
C2
R2
R5
R1 Q5 22pf
10K OFFSET VR1
J2
2 C B
1 1
3 2
4 3
5
6
7
8
J3
150R
R8
150R
D5 R14
150R
R11
A
Q7
R54 475K
100P C16
R5
R15
R14
6
J3 D3 R37 2K0
PN 200A
R16 300R
R55 90K9
14B-RCA5 INPUT SEL BAL/BAL+6/UNBAL
C22
R22
P5 47pf BC 413
Q2
Q4 BC 415
C3
47K5
S1 R23
47pf
R56
MJE 182
Q26
BC 413 Q1 D2
BC 413 Q2 D1 D3 R8
PN 100A
PN 100A
47p Q25 C13 B
MJE 182 R38 4K75 Q19 68P C22
C7 470p
1K0
R30
10K0
150R A C J3 2 1 1 2 3 3 4 C 6 C
RCA JK
100K
R12 R9
R13
R47 R51 1K0 R49 2K2 220p 1K0 C21 C17 2200u/10v
R46
R28 5 8 D3 J3
R27
SECTION 'B'
300R R36 49R9 TP1 R10 Q14 Q3 Q10 2N 5550 Q9 R21 150R C1 R23 220p 1K0 MJE 15031 Q8 MJL 21194 Q7 MJL 21194
L1
2uH
R12 10R 3W 4R7 5W R11
J1 H,J,K 7,8,9
1K0
68R
1K0
15K
15K
100K
BC 413 Q1 Q3 D1 C6 -IN D2 BC 415
1 5
2 7
3 8 J2
-IN
15K
R18
15K
R10 Q3 BC 415 BC 415 C4 Q4
R7
C5 100N R9 D4
7K15 R39 R48 536R 100N C14 1K8 R57
O OUT
150R
1K0
J3
B
R26
470p
68R
10K0
D2
0R20 5W
0R20 5W
Q8 MJE 172
J3
2
1
3
4
6
5
7
8 J2 10K0
R50
R29
C8 1K0 R25 2N 5400
R13 R16
1K0
1M0
1K0
22pf R25
R17
R7
R57
Q6
PN 100A C72 47P
Q24
PN 200A
PN 200A
Q23 47p C17 100P C15 B 100K
1K TRIM VR2
Q20
2N 5550
D2
1N4004
Q4 MJL 21193 MJL 21193
47pf C2 -33V
C11
.1u
R3
R6
R4
R58 3K3
10K0
1K0 A
J1
C,D,E 3,4,5
-60
100K
150R
15K
A
R72
4 Q21 2N 5550 C28 68p D8 Q28 2N 5400 3
J3
1K5
R31
R43
TRANSISTORS
CASE 221A-02 CASE 340G-02 T0-3PBL
3 D
MJE182 MJE172
J3
CASE TO-126 77-04
CASE T092
2N 5550
Q11
R33 200R 0R20 5W 0R20 5W C5 R8 22R F IN 6 GND TP2 49R9
1N4752
301R R102 301R
1N4752
A
2 G 1 S 2N7000 TFET 2N7000 S G D PN100A PN200A E B C 2N5550 2N5400 E B C U1,U2 +16V C103
D102
1u5/35 + C102
1K65
1N4752
6
J4
RXE010 F1 470/16
R6
R18
R17
R45 4K7
R28
+
R40
+
MJL21193 MJL21194
B C E
D28
1N4750
C28
1u5/35 -33V
C19 22P
D40
2K21 R41
C40
1u5/35
D103 1 2 3 1 2 3 1 2 3 .1u .1u C105
ECB BCE
3K0 2w
F3 RXE010
7
J3 A
L PS 10 GND A -43 1
A 1,2 3,4 J4 J4
14B-MB
14B-PWR
Page 1 of 2
WG3
GRN/YEL
14B-PSB
D1 J1 J1 A 1 F 6 +43 IN GND
+
14B-REM
REMOTE INPUT 12V AC/DC
PART OF 14B-RCA PCB
R33
WG3
GRN/YEL
RL1
3R1
D2 221R
LM317 Q1
JP5
G
WG1
P9
BREAKER
475R 18K2 LOCAL-REMOTE POWER
R30 1 U1 2 MOC8100 S3 S2
PN100
WG2
P9 18K2
Q9 R32
R3
JP2
N
POWER INLET CHASSIS
WG3 WW1 WB1
L
+
2880
14B-LOGIC
J7 4 2 1 3
TURN ON PSW ON EXT PWR UP
C5 J1 L 10 PS GND
1000u
100R
R34 R31
PN100 10K
Q8 5 4
22u
50V 100N CN
230V ONLY 100N CL R19
JP4 WB2
1u5
C15
49K9
C17
C16
R39
R38
221K
WB3 WB4 CH2 AC HI
D5
200R
200R
+
J1
M,N,P 11,12,13
+60
27,000u 63V BR1 2 X 33,000u/6.3V BR1
KBPC352
C3
JP3
R42
1
+ C2 2u2
4K75
C20
+
C21
JP1
WW3 WW2
CH2 AC LO
14B-SSB
INTERNAL FUSE
ABC-15A
F2 J1 H,J,K 11,12,13
0 OUT C2 100N
WB6
JP2
15K0
4K99
R26
R22
120V
5
F3 RXE010
Q5 C12
D15
R28
1
1
1
1
PN100A
2
Q7
10R
BLK
1K0
PR5 2W D10
FT2984
1
U4B
120V PRIMARY WIRING
PR4 2W
D9
230V
TXL
SOFT START
510R
J5
1
D14
YEL
BRN
JP4 6 U2 2
4 1K0
R9 IL4108 4 2
TURN ON2
4
4
4
JP8
R6
4
1
15K0
1 JP6
BLU
TXC
JP3
NC D5
3 1K21 R51 J5 5
TURN ON1
3 J5
3 J6 5
3 J6 5
PN100A RL1B
Q1 6 U4 1
RED
TXN
WHT
5V
100K
3,4,5
63V
27,000u
C43 -60V 10N BR2 KBPC352
10N +60V
ORN
WW2
R3
C2
R4
D23
R23
100K
J1
C,D,E
-60
C1
+
10N
C42
JP7
JP1
5
C3 50N
D2
R6
R7
C13
D24
1 1
10N
22u D12
C44 J1 2
U1 10N
TDA 1085C
12K1 1 2 3
R2 R1
Q9
8VAC
470u
C9
C10 470u
6 6 7 8
D3 R11
6
6
6
4 200K
D1
5
J1
B
MUTE
J1 14 J1 J1 J1 R 2 B
200K
T
C1
47u
D4 Q14 2N7000 2 CH1 MUTE 1
J8
CLIP
R14
2 5 4 3 1
R15
MUTE PWR R17
267R
R18
C6
100u/35V 100u/35V
R8 C5 2U2 R13
3
100K
CH1
75R
NC
TEMP CLIP
C7
PWR ON
18K2
D8 R16 G5V-H1-24V
100K
R5 R12 Q2 PN100A
10K
Q4 2N7000 D5 R18 R17
GRN
10K
CHASSIS
6 7 8 9 10
D13
RL1 RL1A
R21 D12
PWR TENP CH2
M,N,P 11,12,13
IL4108
U3 1 6 2 4
D6 R16
100K 10K J8 1
GND CH1 MUTE PWR TENP CLIP R21 TEMP
10K
Q5 2N7000 1 2 3
301R
C10
100u/35V
J1
+60
CLIP MUTE
+
27,000u 63V
CH1
GND
11 J8 240V PRIMARY WIRING
CH2 AC HI WB4 JP2
2 5 4
R20
63K4
R19
CLIP
3K65
12 Q6 2N7000
C10
10K
15K0 R1
YEL
IL4108 SSB ON CH2 JP4
BLK
6
U4
1
R51 1K21
3
TXL
PWR ON
JP8
4
2
R13'
WHT BLU
JP3
JP6
TXC
BRN
CH 2 SOFT START IDENTICAL TO CH1
240V
1
TX2 CH2
5
10K
F3 RXE010
Q4' 2N7000 D5' R18' R17'
6
CHASSIS
100K
R16'
10K
Q5' 2N7000 2
C9
J1 H,J,K 11,12,13
100N
JP7
RED
WHT ORN
JP1
120V
2
0 OUT
25VAC WW3
3 4
7
7 8
CH2
PWR TENP CLIP MUTE GND CH2
10K
TEMP R21'
TXN
CH2 AC LO
FT2984
R20'
9 10 11 J8
63K4
R19'
CLIP
3K65
Q6' 2N7000 12
10K
RED WR1 J1 C,D,E 3,4,5
BLK WB6
MUTE CH2
-60
C8 63V
+
27,000u
+ OUT OUT1"
GROUND SYMBOLS
A INPUT GROUND
J1
F IN 6 GND 7K32
22u C6 +
R5
22u C7 50V +
B
POWER GROUND J9 LED 6 5 2 3 4 7 1
50V
D3 221R R4 Q2 D4 LM337
J1
L PS 10 GND A -43 1
J1
3R1
FILE:
14B-PSB
BRYSTON POWER AMP SCHEMATIC 14B-SCHR8 PART No: DWG BY:
PSB-SSB-LOGIC
REV: 8
1
LOGIC GND (CHASSIS)
1
LOGIC GROUND CH 1
2
LOGIC GROUND CH 2 14B-LED CHASSIS GROUND J10 PSW 2 1
DATE: FEB 14, 2001
Page 2 of 2
+
C45
16
15
14
13
12
11
10
9 7 7 7 7
+
+
MAC 2213A10FP
8VAC
1MEG
499K
R42
GS3 PR1
2
2
2
2
C11 D11 470u 470u C12
25VAC
3
R37 Q6 D9
604R
C4
.1u
475R
+
+
D1
D2
D4
D3
2u2
2u2
R35
+
T3
+
+
50V
C4
R2
J7
J7 4 2 1 3 5
REM TRIG 2N7000 Q8 R38 R44
7K32
1K0
C8
100N
3
5 6 7
DLY RLY 8V
6 7
U3 1MEG
1 2
R41
2M21
4 C5 100N
1
PART OF 14B-PSB
R45
9
8
13 D10
12
U3
5 6
1
U4C
10
U4D
11
4
TX1 CH1
7
5V
10K MJE182
SW LATCH
R39
+
LM 2931A
D21
R24
VR1 10K
C1 R27 2u2
+ 5 6
36K5
8K25
1
4
MUTE
750VA 750VA 750VA 750VA
Q10 2N7000
30K
30K
33R
22R
R14
R13
3R
PR2
PR3
R15
2N7000 Q12
1
R42
R40
36K5 +
Q13
2N7000
301K
267K
475K
475R
LED'S
LM 2931A
5V
LED'S
+ +
49K9
+
+ 18K2
R7
10K
12 11
4K99
R2
13
D2
9 10 VR2 100R
390R
221R
4K99
8
R3
R5 R6
U2-4081
8 10 11 D3 1N914 9 Q2
+
13
2N 5550
150R
Q3
R1
4K99
U1-4011
D4
R4 Q1
2N 5550
100K
R8
1
R7'
10K
12 11
4K99
13 D2' 9
R2'
VR2 100R
390R
221R
4K99
10 3 8 8
R3'
R5'
R6' R1'
1
150R
13 11 1N914
D3' 10 9
Q2'
2N 5550
Q3'
4K99
U1-4011 U2-4081
D4'
R4'
2N 5550
Q1'
2N7000 Q11
R8'
100K
1
J9 LED
6
5
2
3
4
7
1
CH2
COM
PWR SW
RED
GRN
RED
GRN
CH1
PC00-022-3-0
J9