34
QSC Audio Products, Inc.
Gray shading indicates
signal path
NOTES: UNLESS OTHERWISE SPECIFIED
A
B
8
7
6
5
8
6
7
5
C
D
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
C
D
1
4
3
2
REV
SH
A
1
DWG
NO.
B
2
3
4
SIZE
FSCM NO.
DWG NO.
SCALE
CAD FILE NO.
SHEET
REV
D
BR MONO RETURN -- CAUTION, SENSITIVE NODE
BR_RET
SEE SH 1
SW-GND FOR CLIP LIM
CLIP_B
SEE SH 1
4-5 MA CHARGE CURRENT
1 MA DISCHARGE.
+14V-A
-14V
R210
100
^R_0805
R208
7.50K
^R_0805
10.0K
^R_0805
R203
R209
100
^R_0805
R296
270
^R_0805
R204
150K
^R_1206
Q200
3906
^Q_BJTP_SOT-23
R211
820K
^R_0805
R207
^R_0805
39K
R215
820
^R_1206
R214
4.7K
^R_0805
A1
A1
A1
14
+
9
10
12
16
13
-
15
U10:2
LM13600M
C205
100-25V
C231
.001
C208
.15-5%
4
J204:4
4
J104:4
R220
390
^R_0805
C225
100-16NP
R222
23.21K-1%-1/2W
5
+
6
-
7
NE5532
U201:2
C213
220-25V
D200
15V-1W
LD200
RED
C209
.15-5%
8
4
P1
D202
1N4148
^D_SOT-23
D203
1N4148
^D_SOT-23
R221
24K
^R_0805
R217
24K
^R_0805
C210
27p
^C_0805
-15V_B
CLIP CH 2
NTC
BIAS
C215
0.0022u,
10%
^C_1206
D214
1N4148
^D_SOT-23
D205
1N4148
^D_SOT-23
D206
1N4148
^D_SOT-23
CW
CCW
W
R231
100
50
R234
C216
.022
D210
5.6V-.25W
D209
1N4934
CW
CCW
W
2.2K
R239
CW
CCW
W
R240
2.2K
-110_B
^D_SOT-23
1N4148
D21
1
R227
100
^R_0805
R232
820
^R_1206
P1
8.2K-5W
R233
8.2K-5W
R235
R237
22-1W
NEG STEP DRIVER
R286
150K
^R_1206
R292
150K
^R_1206
C_MYL2_AI
C279
.0033
R295
2.00K
^R_0805
R294
12K-1W
R_RES1W
C276
47pF-50V-5%
^C_0805
R293
4.7K
^R_0805
R287
4.7K
^R_0805
R283
47K
^R_0805
R285
470K
^R_0805
R238
4.7K
^R_0805
A1
2
3
4
V-
1 GND
8
V+
5
BAL
6
BAL/STR
7
^LM311-SMT
U271
3
+
2
-
1
NE5532
U201:1
10
J204:10
10
J104:10
C206
47-10NP
CW
CCW
W
R212
10K
C207
.22-5%
A1
A1
C204
180p-5%
^C_0805
C201
180p-5%
^C_0805
R213
274
^R_0805
R206
10.0K
^R_0805
R201
10.0K
^R_0805
R200
10.0K
^R_0805
R205
10.0K
^R_0805
R202
1K
^R_0805
F_BYP_B
10K LINEAR 3B
RIGHT ANGLE POT
SW-30 HZ
SW-FILT BYPASS
F_30_B
F_BYP_B
+IN_B
-IN_B
SEE SH 1
SEE SH 1
CHANNEL-2
POS STEP DRIVER
R273
150K
^R_1206
R271
5.90K
^R_0805
R274
4.7K
^R_0805
R272
470K
^R_0805
D270
3.9V
C272
.0033
D201
15V-1W
C212
220-25V
6
J204:6
6
J104:6
P1
75
^R_0805
R224
C214
^C_1206
0.0015u,
250V
5%
R216
820K
^R_1206
C211
27p-200V-COG
^C_1206
+15V_B
R277
12K-1W
YELLOW
LD201
5
J204:5
5
J104:5
R225
4.7K
^R_1206
R266
464K
^R_1206
R290
2.00K
^R_0805
SPEAKER BUS -- BEFORE FUSE
+110_B
R278
150K
^R_1206
R228
10K
^R_0805
R229
1.5K
^R_0805
Q201
3904
^Q_BJTN_SOT-23
1N4148
^D_SOT-23
D212
R279
4.7K
^R_0805
2
3
4
V-
1 GND
8
V+
5
BAL
6
BAL/STR
7
^LM311-SMT
U270
8.2K-5W
R218
8.2K-5W
R219
10V-1N4740A
D274
SIG CH 2
FP
D204
1N4148
^D_SOT-23
^Q_BJTN_SOT-23
3904
Q202
D213
1N4148
^D_SOT-23
R230
820
^R_1206
P1
7
J104:7
7
J204:7
D208
1N4934
D207
5.6V-.25W
C281
0.01
R236
22-1W
FP
D216
1N4148
^D_SOT-23
MJE15032
Q205
R248
0.22-3W
R242
0.22-3W
R252
0.22-3W
R256
0.22-3W
Q203
2SA1943
Q207
2SA1943
Q209
2SA1943
Q211
2SA1943
P1
^Q_BJTP_SOT-23
3906
Q272
C273
100-25V
R275
3.01K
^R_0805
R280
5.1K-5W
TO -VMED
+55_B
D275
MUR1520
R281
1.5-2W
C274
.1-250V
D217
1N4004
C221
12000-63V
R265
15K-1W
C229
22-25NP
+110_B
3904
Q271
^Q_BJTN_SOT-23
C270
47pF-50V-5%
^C_0805
1N4148
^D_SOT-23
D271
R270
47
^R_0805
R276
12K
^R_0805
D273
1N4148
^D_SOT-23
RFZ44
Q270
C271
10-35V
C220
12000-63V
DC FAULT
PROTECTION
MT1
MT2
G
Q213
MAC224
R264
100-1/4W
R263
10-1/4W
D219
2N5064
2N5064
D220
P1
R291
2.2K
^R_0805
1N4148
^D_SOT-23
D277
C277
47pF-50V-5%
^C_0805
R284
5.90K
^R_0805
^Q_BJTN_SOT-23
3904
Q273
C278
.1-50V-10%
^C_1206
Q275
3906
^Q_BJTP_SOT-23
-55_B
-110_B
R289
47
^R_0805
C223
12000-63V
D278
12V-1W-1N4742A
RFZ44
Q274
R288
5.1K-5W
C280
100-25V
R259
0.22-3W
R243
0.22-3W
R249
0.22-3W
R253
0.22-3W
Q204
2SC5200
Q208
2SC5200
Q210
2SC5200
Q212
2SC5200
FP
NEG
CURRENT
LIMIT
POS
CURRENT
LIMIT
R246
3.3-1W
R_RES1W
R247
3.3-1W
R_RES1W
D215
1N4148
^D_SOT-23
P1
MJE15033
Q206
C219
.022
R298
2.2K-5W
R257
2.2K-5W
R258
2.2K-5W
CT_B
SEE SH 3
C222
12000-63V
R260
5.6-2W
L200
2uH
C224
.068-250V
R261
12-5W
R254
12-5W
F200
25A-125V
P1
SP_B
D218
1N4004
R282
1.5-2W
.1-250V
C275
D276
MUR1520
P1
0.068-250V
C226
11
J104:11
11
J204:11
SPEAKER OUTPUT
BR-POS
WIRES TO
SPEAKER
OUTPUT PCB
BR-NEG
SPEAKER CONNECTORS
ON BREAKAWAY PCB
FROM SHEET ONE
J203 -
J203 +
5-WAY
BINDING
POST
CH 2
CHANNEL 2
TO CH 1
SHEET 1
E200
E201
2+
1+
2-
1-
J200
SPEAKON
R262
12-5W
R255
12-5W
JP16
JP15
PLOT DATE:
NONE
SH-002451-00
OF
SH-002451-00
4
3
4
4
3
RMX2450-4.sch
Thu Sep 07, 2000
7.10 RMX 2450 Schematic Diagram 2 of 3
Channel 2
