Carvin BR-120 Schematic
INPUT
J12
D.I.PRE
10K smt 1/4w
C81
C403
H5A.A
H5A.B
H5A.C
H5A.D
1K
R296
R295
100K
R288
R184
80Hz
P8
10K
C71
.1
82pF
C6
0.01µF Film SMT
PRE AMP
1
3
.001µF
100½
R405
1M
C113
1µF
R169
360K smt 1/4w
J10
2
R409
150½
R410
100K
R275
2.2K*
Q16
+
R260
15K*
R274
10K
C72
.1
R6
4.7K smt 1/4w
220K smt 1/4w
100K
R402
R406
150½
25V FET
P9
10K
!+
H2B.A
H2B.B
H2B.C
H2B.D
H5B.A
H5B.B
input
H5B.C
a gnd
H5B.D
AGND
thru
C111
R280
1M
R221
470K*
.0033
R171
C75
39pF*
C109
500 Hz 800 Hz250Hz
P4
10K
C8
.047
C7
.0022
C74 R9
.1
R7
4.7K smt 1/4w
input
a gnd
220K smt 1/4w
H2A.A
H2A.B
H2A.C
H2A.D
22K*
R218
+15VDC
R172
3.9K smt 1/4w
!-
A9.A
+
AGND
0.033µF
C122
0.033µF
S6.B
S6.A
thru
R268
10K
P5
10K
!-
A9.B
+
C406
22µF
GND LIFT
EM FSW
H3B.A
R265
1M½
R236
365K
D18
C10
.033
C9
.0022
R175
150K smt 1/4w
C404
22µF
+15VDC
-15VDC
GEQ FSW
H3B.B
R252
6.8K*
Q19
R254
10K
C117
YEL
S3.A S3.B
P13
10K
R10
3.9K smt 1/4w
A15.B
C405
39pF
R408
10K
8
2
Ð
A15.A
1
+
3
4
-15VDC
+15VDC
H3B.C
H3B.D
+
C123
1µF
R292
4.7K
+
22µF
2K Hz
C82
.01
!-
A8.A
+
6
Ð
+7
5
R407
10K
R293
3.3K
+24FRONT
H3B.E
100K
4. ADDED AS SECONDARY OPERATION.
2. ALL CAPACITORS IN MICORFARADS, EXCEPT AS NOTED.
1. ALL RESISTORS IN OHMS
NOTES: UNLESS OTHERWISE SPECIFIED.
12340 World Trade Drive
San Diego, CA 92128
ARVIN
C
(858) 487-1600
FAX 487-6629
BR120
System Master
DRAWN BY:
GEORGE DREYER
APPROVED:
PCB
30-42120
NO:
ASSY.
80-42120
NO:
REVISED BY:
GEORGE DREYER 2ARL06
Changes from Assembly Rev (A).
Proto corrections: -15V via grounded, R257 grounded, Locational errors D11 moved up; added R11.
DATE:
DATE:
REV:
REV:
DATE:
26SEPT05
B
B
R264
6.8K
C12
560pF
.047µF
C118
R290
R14
D.I.PRE
cw
P11
B50K
AMP1-
H3B.F
C124
1µF
R267
4.7K*
10K smt 1/4w
C83
82pF
!-
A11.A
+
CLIP1
H3B.G
R266
150K
+
R258
68K
R12
4.7K smt 1/4w
!-
A8.BA11.B
+
R13
220K smt 1/4w
SEND
H3B.H
H3B.I
R257
22K*
GRAPHIC
R79
10K
RETURN
H3B.J
GRN
QC5
CHASSIS
RED
RED
R256
22K*
+
C120
1µF
Q8
C125
R259
1K
P1
B100K
R262
6.8K
R80
33K
GRAPHIC -
YEL
YEL
+
1µF
cw
R82
2
Ð
A26.A
+ 1
3
H3A.A
H3A.B
H3A.C
H3A.D
H3A.E
H3A.F
H3A.G
H3A.H
H3A.I
H3A.J
H7.B
H7.D
H7.C
H7.A
H7.E
25V FET
10K
R81
47k
R173
10K
R285
1K
DRIVE
R160
1M
R284
365K
C114
1µF
+
R283
150K
1M
R294
sec
15K
GRAPHIC +
Q5
C78
330pF
10K
R174
8
2
+15VAMP
Ð
A16.A
+
-15VAMP
3
4
MU F SW AMP
GEQ F SW AMP
-15VAMP
+15VAMP
24VJFETS
+
C186
22
CLIP AMP
SEND AMP
RETURN AMP
D501
SMB
D502
SMB
D503
SMB
D504
E4
D1
D32
D33
D34
Q18
R282
10K
R83
10K
R24
R85
47k
R159
R316
47K
C50
.01
MUTE 2
+15VAMP
R2
1
R189
150k
++
SMB
V-
V+: +43VDC
V-: -43VDC
C99
4700
+
R281
6.8K
C18
1µF
R291
2.2K
C116
1M
C52
22µF
Q1
5550
1K
Q2
5401
-15VAMP
R133
2.2K
C503B
1000µF 25V
C504B
1000µF 25V
+
C98
4700
470
R26
C134
+
22µF
.047µF
Q4
R84
33K
C51
.01
C3
39pF
15K
R21
2
Ð
A10.A
+ 1
3
R415
33K
PHONESOUT
3
+
A17.A
Ð
2
C177
82pF
R134
4.7K
R4
++
C503A
1000µF 25V
C504A
1000µF 25V
1.8K smt 1/4w
1.8K smt 1/4w
1.8K smt 1/4w
1.8K smt 1/4w
V+
R340
33K
contour
P2
B50K
cw
C134A
COMP SENS
sec
6
Ð
A16.B
+ 7
5
1
150K
VR1
7815
7915
VR2
R8
R16
R190
R191
cw
.047µF
R328
47K
MUTE 1
R138
47K
C176
82pF
CLIP AMP
R137
33K
R341
C136
39pF
6
Ð
A13.B
+ 7
5
R346
15K
R342
10K
550 Hz
C65
+
1
MASTER VOLUME
R1
22K
+15VAMP
4.7K
330
D106
1N914
D107
1N914
R141
4.7K
-15VAMP
+
+15VAMP
C1
.1µ
+
C2
.1µ
-15VAMP
-24VDC
Z11 Z12 Z13
C90
220
+
R343
sec
22K
R108
22K
B50K
C53
39pF
6
Ð
A10.B
+ 7
5
R140
470½
R144
680
OUTPUT1
R17
R18
4.7K smt 1/4w
R39
470
R38
47K
C135A
10K
.022µF
B50K
P12
R197
R19
C66
120pF
6
Ð
A4.B
+ 7
5
CLIP1
cw
P10
R142
1K
Q102
5550
R143
680
R148
560½
R15
Q103
5401
R145
1K
4.7K smt 1/4w
C520
OP1.B
R40
47K
C19
39pF
2
Ð
A13.A
+ 1
3
C135
.022µF
cw
nu
C132
+
.1
R222
100
Q104
MMBT5401 PNP
R23
0
0
R22
R147
680½
560½
Q105
MMBT5550 NPN
R224
100
R232
150K smt 1/4w
22uF
C106
R501
1000µF 35V
sec
COMP SENS
R111
33K
R306
100K
R223
100
Q21
n/u
Q106
TIP31
R225
100
1K
+
1000µF/25V
C20
22µF
R20
47K
R94
10K
AMP1-
560PC182
Q108
R1108
C180
.22½
5W
.047
R1112
.22½
5W
Q112
c184
560P
220K
+
R228
MMBT5550 NPN
9.1v9.1v
C69
Z500
5.1v
R41
10K
D25
5550
Q500
Z501 Z502
TREBLE
C22
.01µF
R95
2
A4.A
3
BDW83C
BDW84C
V-
D26
Q15
R42
2.2K
150K
Ð
+ 1
R313
D109B
SMT
220K
R227
C522
.1
cw
C22A
3.3K
D31
R226
BASS
cw
cw
cw
P6
B50K
C23
C137
82pF
1µF
R43
2.2K
.01µF
C21
.033µF
R44
100K
R11
330
MUTE 2
R120
3.3K
MUTE 1
D6
GRAPHIC +
EQ
mute
GRAPHIC -
V+
D108B
R177
10K
R176
22K
R178
100K
5401
THERMAL DIODE
270½
24VJFETS
+
22
C521
82pF
P3
B50K
D22 D23
OUTPUT1
R330
Q302
1K
R325
Q117
C181
.01
2
3
6
Ð
A3.B
+ 7
5
R198
5550
R47
10K
Ð
A3.A
+ 1
OP1.A
1K
A22.D
A22.B
A22.A
A22.C
+15VAMP
150K
+
R179
C138
C131
R3
10K
CURLIM
C110
.022µF
+
22u
R305
0
R304
COMPRESSOR
10K
R98
8
Ð
+14
9
6
Ð
+1
7
4
Ð
+2
5
10
Ð
+13
11
D17
R209
3.3K
C318
R327
22
22K
THERMAL DIODE
100K
CURLIM
R319
R287
10K
MID
P7
B50K
cw
R298
4.7K
R299
4.7K
100K
+15VDC
R186
5½ 5W Vert.
8
6
+15VAMP
Ð
A20.B
+
-15VAMP
5
4
TIP31
33K
D24D30
D11
R336
47K
Q3
D111
1K
S7.A
R122
C62
.1µF
C121R139
.1µF
7
+15VAMP
1N914
R297
C127
6
Ð
A26.B
+ 7
5
P26.B
15C50Kx2
P26.A
15C50Kx2
R117
+15VDC
POWER
-15VDC
47K
+
+
CLEAN
R324
10K
RETURN AMP
R329
3.3K
D10
10K
39pF
cw
cw
R118
3.3K
S7.B
+15VDC
-24VDC
D16
2N5400
SEND AMP
+15VAMP
1N914
R312
1.8k
R210
10
R320
10K
C317
.0047µ
C126
.01µF
25V FET
C108
22µF
D4
CLEAN
R311
47K
C313
22
R52
10K
+24FRONT
C76
22µF
C77
22µF
Q303
2
Ð
A20.A
+ 1
3
R321
5.6K
+
K100
+
C107
22µF
GRAPHIC
R116
10K
SEND
GRAPHIC
R162
R164
+
+
+
R5 10K
S5.B
S5.A
22½ 1W1%
R136
R419
22½ 1W1%
L100
1.5µH
GEQ F SW AMP
MU F SW AMP
PHONESOUT
22µF
R339
C410
C401
22µF
D310
R331
100K
+15VAMP
R323
+15VAMP
27K
8
6
Ð
A17.B
+
5
2043
4
-15VAMP
R322
470K
R58
470
7
4.7½
4.7½
GEQ FSW
C5
.1µF
CLEAN
1N914
RETURN
10K
R57
4.7K
EM FSW
H6B.A
H6B.B
H6B.C
H6B.D
H6B.E
H6B.F
H6B.G
H6B.H
H6B.I
H6B.J
+
D312
switch
switch
trans
trans
trans
trans
earth
H6A.A
H6A.B
H6A.C
H6A.D
H6A.E
H6A.F
H6A.G
H6A.H
H6A.I
H6A.J
QC4_SW
QC3_SW
QC2 BLK
QC1
QC2
120VAC 1/2
QC7
QC6
EARTH GND
R413
10½
250VAC
.047
C13
B2
240VAC
speaker
speaker
SPKR GND
FOOT SW
SPKR GND
line out /phones
SPKR GND
EFF SEND/ tuner
EFF RETURN
B1
120VAC 2/2
B3
J7
SPKR GND
J8
J13
F1
L
E
N
PL1
J9
J4
J5
SMT SCREEN HOLES
#689#690
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