Carvin CX-1200 Schematic
2. ALL CAPACITORS IN MICORFARADS, EXCEPT AS NOTED.
3. ALL DIODES ARE TYPE 1N4003, EXCEPT AS NOTED.
NOTES: UNLESS OTHERWISE SPECIFIED.
4. ADDED AS SECONDARY OPERATION.
1. ALL RESISTORS IN OHMS
GEORGE DREYER
MJD340
MJD350
MJD340
MJD350
CLEAN
CLEAN
CLEAN
+15VAMP
+15VAMP
-15VAMP
-15VAMP
-15VAMP
+15VAMP
-15VAMP
+15VAMP
-15VAMP
+15VAMP
-15VAMP
+15VAMP
22W 1W1%
22W 1W1%
Diode 1N914 SMT
5550
5401
5550
5401
5401
H3A.C
H3A.B
5401
.1m
.1m
82pF
.0047m
82pF
H3A.F
H3A.D
1.5mH
1.5mH
H3A.G
H3A.H
H3A.J
.1mF
H3A.I
H3A.A
H3A.E
.1mF
.1mF
10KmF
C502
H12.1
H12.B
1000
1000
39pF
39pF
7815
7915
39pF
39pF
R130
R131
R133
C175
R135
C177
C176
R138
R176
R178
C181
D111
R134
C121
R139
R140
R141
D107
R147
R142
R143
R144
R145
R230
R231
C275
R237
R235
C277
C276
R238
R278
R279
C281
R330
Q203
Q202
R234
C221
Q205
Q204
R239
R240
R241
D207
R247
R242
R243
R244
R245
R420
R419
Q103
Q102
L100
Q105
Q104
L200
-24VDC
R179
R177
R277
R276
D206
-24V REAR
K100
K200
-24V REAR
H7.C
H7.B
H7.A
H7.D
H7.E
H7.F
H7.G
H7.H
H7.I
J202
J102
R314
R315
R322
R320
D310
D312
C317
D311
R317
R318
R323
R321
R311
R312
R325
R326
R324
C310
R331
C503
C504
C505
C506
C507
Q217
Q117
R148
R248
Hbias2.B
Hbias2.A
Hbias1.B
Hbias1.A
Q110
Q114
Q210
Q214
C313
R327
R329
Q303
SPK1
SPK2
500W
P101
500W
P201
.01
.01
47K smt 1/4w
BR1
35V
35V
VR1
VR2
1000
RED
YEL
YEL
GRN
GRN
GRN
RED
YEL
YEL
35V
63V
V+
V-
cw
V+
V-
22
cw
cw
+
+ +
+ +
+
+
+
+
2N5400
2.2K
12340 World Trade Drive
San Diego, CA 92128
(858) 487-1600
FAX 487-6629
REVISED BY:
APPROVED:
DRAWN BY:
DATE:
DATE:
ASSY.
DATE:
ARVIN
REV:
REV:
NO:
PCB
NO:
C
A17.A
2
–
3
+
1
8
4
A17.B
6
–
5
+
7
4.7K
2.2K
4.7K
1K
R137
1K
4.7K
470W
4.7K
1N914
D106
1N914
1K
1K
1K
1K
680W
150W
R169
.22W
5W
R171
.22W
5W
R150
22W
1W
R151
22W
1W
47K
10K
100K
1N914
A20.A
2
–
3
+
1
8
4
A21.A
2
–
3
+
1
8
4
2043
A18.A
2
–
3
+
1
8
4
A18.B
6
–
5
+
7
2043
A20.B
6
–
5
+
7
A21.B
6
–
5
+
7
100K
10K
5.6K
470K
1N914
4.7K
2.2K
4.7K
1K
47K
47K
1K
1N914
1N914
4.7K
1K
1K
1K
4.7K
470W
1K
680W
150W
MJE15032
Q207
MJE15033
Q211
R250
22W
1W
R251
22W
1W
R269
.22W
5W
R271
.22W
5W
10K
47K
100K
68K
1.5K
1.8K
22K
1K
100K
1K
3.3K
10K
22K
3.3K
R319
22K
R233
2.2K
47K
27K
100K
J502
SPK3
D2
D3
D8 D9
R2
150K
R4
33K
D12
D13
D14 D15
R97
33K
5550
Q9
R100
2.2K
R102
150K
5550
Q10
R101
2.2K
MJD340
Q301
CURLIM
CURLIM
RELAY+ REAR
RELAY+
CURLIM
C318
22
D17
PL1
N
E
L
F1
QC3
E2
R105
22mF 35V SMT
C71
+
K1
AC Line to transformer
SPKR GND
22W 1W1%
22W 1W1%
R182
R136
#1318#1319
.047mFC180
.047mF
C280
Q115
Q116
R162
.22W
5W
R164
.22W
5W
MJL21194 NPN
MJL21193 PNP
Q215
Q216
R262
.22W
5W
R264
.22W
5W
CLEAN
SPKR GND
7912 -12V
Q7
R335
22W
1W
R334
22W
1W
R333
22W
1W
R332
22W
1W
+
D10
1N914
D16
.1mF
C62
+
.1mF
C63
+
Diode SMB SMT1A
D108
D109
D208
SMB
D209
SMB
D506B
SMB
D505B
SMB
D504B
SMB
D503B
SMB
D502B
SMB
D501B
SMB
SMT
C186
22
+
R289
150K
R189
150k
C82
22
+
R209
3.3K
+15VAMP
+15VAMP
MJD340
Q302
+15VAMP
+15VAMP
+15VAMP
D7
1N914
SPKR GND
5550
Q2
R1
100
R3
220
R246
100
R216
100
R249
100
R219
100
R146
100
R116
100
R149
100
R119
100
CX800,CX1200
30-08734
80-08734
3 CH POWER AMP
SPKR GND
22W 1W1%
1.5mH
R5
L1
22W 1W1%
R6
SPKR GND
S1.A
S1.B
AC Neutral to transformer
H11A.A
H11A.B
H11A.D
H11A.C
clip1
clip2
H11B.A
H11B.B
H11B.D
H11B.C
RELAY+ REAR
-24V REAR
SPKR GND
-24VDC
RELAY+ REAR
SPKR GND
MJL21194
MJL21193
MJD340
MJD350
+15VAMP
-15VAMP
-15VAMP
+15VAMP
5550
5401
5401
82pF
39pF
39pF
R530
R531
C575
R537
R535
C577
C576
R538
R578
R579
C581
Q510
Q514
Q503
Q502
Q515
Q516
R534
Q505
Q504
R539
R540
R541
D507
R547
R542
R543
R544
R545
P501
R577
R576
D506
Q517
R548
Hbias3.B
Hbias3.A
500W
.01
cw
V+
V-
cw
A1.A
2
–
3
+
1
8
4
A1.B
6
–
5
+
7
2043
4.7K
2.2K
4.7K
1KW
47K
1K
1N914
1N914
4.7K
1K
1K
1K
4.7K
470W
1K
680W
150W
MJE15032
Q507
MJE15033
Q511
R550
22W
1W
R551
22W
1W
R569
.22W
5W
R562
.22W
5W
R571
.22W
5W
R564
.22W
5W
10K
47K
100K
R533
2.2K
100K
D5
D6
D11 D19
R43
33K
R31
150K
5550
Q17
R500
2.2K
CURLIM
.047mF
C580
D508
SMB
D509
SMB
R589
150K
C5
22
+
R516
100
R546
100
R519
100
R549
100
.1mF
C6
K300
-24V REAR
+
RELAY+ REAR
.1mF
C4
+
SPKR GND
-24VDC V-
V+
CLEAN
+15VAMP
-15VAMP
100W
+24VDC
+24VDC REAR
+24VDC
+24VDC REAR
Q4
R8
22K
R9
22kW
R10
n/a
QC101a
QC201a
QC501a
QCO4
QC101b
QC201b
QC501b
QCI4
OUT1
OUT2
OUT3
#372
10KmF
C501
63V
+
QCO5
INPUT1
CLIP1
INPUT2
CLIP2
INPUT3
CLIP3
PROTECT
22W 1W1%
R11
22W 1W1%
R12
22W 1W1%
R13
22W 1W1%
R14
22W 1W1%
R15
22W 1W1%
R16
J201
J101
SPK1
SPK2
J501
SPK3
22W 5W Vert.
R7
22W 5W Vert.
R17
+24VDC DSP+VDC
22W 1W1%
R18
DSP+VDC
10KmF
C501a
80V
+
22W 1W1%
R19
22W 1W1%
R20
22W 1W1%
R21
1000
1000C1C2
35V
35V
+ +
TIP31C NPN Flat
Q106
TIP31C NPN Flat
Q206
TIP31C NPN Flat
Q506
R503
150W
R203
150W
R103
150W
H10.A
H10.C
H10.D
H10.B
QCO1
RELAYGND
RELAYGND
R522
2.2K
R523
4.7K
R222
2.2K
R223
4.7K
R122
2.2K
R123
4.7K
Rev A to B
1. input ground balancing
2. earth ground relocated
3. bias transistors changed to Tip31's.
Rev B to C is first production
1. Speaker jack location moved to metal.
MJE15033
Q111
MJE15032
Q107
D
C
16 NOV2001
Rev D is first production
1. C182, C182, C184, C185 and equivalent on
locations on the other two channels were
converted to through hole caps.
560
C182
560
C184
560
C282
560
C284
560
C582
560
C584
7815
VR3
7915
VR4
.1m
C3
+
.1m
C7
+
-15V +15V
+15V
-15V
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