Channel 2 - QSC RMX Series Technical & Service Manual

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.
8
D
C201
180p-5%
^C_0805
R205
10.0K
^R_0805
NE5532
U201:1
+IN_B R200 R202
+
3
10.0K 1K
^R_0805
SEE SH 1 ^R_0805
-
2
R201 R206
-IN_B
10.0K 10.0K
^R_0805 ^R_0805
C
C204
180p-5%
SEE SH 1
^C_0805
F_30_B
SW-30 HZ
F_BYP_B
SW-FILT BYPASS
F_BYP_B
+14V-A
U10:2
LM13600M
14
+
10 12 15
13
-
B
-14V
SEE SH 1
CLIP_B
SW-GND FOR CLIP LIM
SEE SH 1
BR_RET BR MONO RETURN -- CAUTION, SENSITIVE NODE
Gray shading indicates
A
signal path
NOTES: UNLESS OTHERWISE SPECIFIED
8
RMX Series Technical Service Manual (2RU models)
TD-000098-00 rev. C
7 6
C272
.0033
R290
CHANNEL-2
2.00K
^R_0805
R277
12K-1W
J204:5 5
5
J104:5
SPEAKER BUS -- BEFORE FUSE
10
J204:10
R266
A1
10
J104:10
464K
^R_1206
C211
C206
27p-200V-COG
1
47-10NP
^C_1206 6
J204:6
R213
W 6 J104:6
R212
274
^R_0805
C212
A1
R216:
R212:
820K (up to Apr 2002) 220-25V
10K LINEAR (up to Nov 2001)
1 M (effective May 2002)
2.5K LINEAR (effective Dec 2001)
D201
RIGHT ANGLE POT +15V_B
C207
15V-1W
.22-5%
C210
27p
^C_0805
C208 C209
6
-
.15-5% .15-5% 7
5
+ U201:2
NE5532
D200
A1
-15V_B 15V-1W
R214:
A1
4.7K (up to Apr 2002)
1.2K (effective May 2002)
C213
220-25V
J104:4
4
J204:4
4
A1
R211
820K
^R_0805
4-5 MA CHARGE CURRENT
Q200
1 MA DISCHARGE.
3906
R220:
^Q_BJTP_SOT-23
390 (up to Apr 2002) Ω
348 (effective May 2002) Ω
C225
R220 R222
^R_0805 23.21K-1%-1/2W
100-16NP
R238
4.7K
A1
^R_0805
7 6
5 4
POS STEP DRIVER
^Q_BJTN_SOT-23
Q271
3904
R272
D271
R273 R274
470K
1N4148
150K 4.7K ^R_0805
U270
^D_SOT-23
^R_1206 ^R_0805
1 8
GND V+
R275
2 7
3.01K
3 6 Q272
BAL/STR
^R_0805 3906
4 5
V- BAL
^Q_BJTP_SOT-23
^LM311-SMT
R278 R279 D274
150K 4.7K 10V-1N4740A
^R_1206 ^R_0805
Q201
D212
3904 R218
R228 R229
+110_B
^Q_BJTN_SOT-23
1N4148 8.2K-5W
R225 10K 1.5K
4.7K ^D_SOT-23
^R_0805 ^R_0805 R219
^R_1206 C281
8.2K-5W
0.01 R236
D204 22-1W
Q202
3904
FP FP
^Q_BJTN_SOT-23
1N4148 P1
Q203 Q207
^D_SOT-23
2SA1943 2SA1943
SIG CH 2
D207:
J204:7 5.6V 0.25W (up to Feb 2002)
7
D207
4.7V 0.25W (effective Mar 2002)
J104:7
Q205
7
MJE15032
P1 R224
75
^R_0805
R246
3.3-1W
W
D202 D205 R239
NEG
2.2K
CURRENT
LIMIT
1N4148 1N4148
^D_SOT-23 ^D_SOT-23
POS
R240
D203 D206
R231 CURRENT
W
2.2K
LIMIT
100
R234 W
C216
1N4148 1N4148 R247
50
BIAS
.022
^D_SOT-23 ^D_SOT-23 3.3-1W
NTC
LD200
RED
CLIP CH 2 Q206
D210: MJE15033
5.6V 0.25W (up to Feb 2002) D210
P1
4.7V 0.25W (effective Mar 2002)
R227:
100 (up to Feb 2002) Ω
75 (effective Mar 2002) Ω
P1
Q204 Q208
2SC5200 2SC5200
R233
R237
22-1W
8.2K-5W
FP
R235
8.2K-5W
-110_B
C276
R283
47K
47pF-50V-5%
^R_0805
^C_0805
R285
R294 470K
R286 R287 D277
12K-1W
^R_0805
U271
150K 4.7K
1N4148
1 8
^R_1206 ^R_0805 GND V+ ^D_SOT-23
R295
2 7
2.00K
3 6 R291
BAL/STR
^R_0805
4 5
V- BAL
2.2K
^LM311-SMT
C279 R292 R293 ^R_0805
150K 4.7K
.0033
NEG STEP DRIVER
C_MYL2_AI ^R_1206 ^R_0805
7.13 RMX2450 Schematic Diagram 2 of 4

Channel 2

5 4
3 2
+110_B
C270
47pF-50V-5%
Q270
R270
^C_0805
RFZ44
47
^R_0805
C220
12000-63V
R276:
C273
12K (up to Oct 2003)
100-25V
47K (effective Nov 2003) R280
TO -VMED
5.1K-5W
+55_B
D275
MUR1520
C274
R281
1.5-2W .1-250V
D217
Q209 Q211 R265
1N4004
2SA1943 2SA1943
15K-1W
P1
D216
C221
1N4148
^D_SOT-23 12000-63V
R260
5.6-2W
R298
SEE SH 3
2.2K-5W
CT_B L200
C219 F200
P1
2uH
.022
25A-125V
R257
C224
2.2K-5W
.068-250V
R258 R261
12-5W
2.2K-5W
C222
P1
D215
12000-63V
R254
1N4148
12-5W
^D_SOT-23
P1
C226
Q210 Q212 0.068-250V
2SC5200 2SC5200 D218
1N4004
C275
R282
1.5-2W .1-250V
J204:11
11
J104:11
D276
11
MUR1520
SP_B
C223
-55_B
12000-63V
C277
47pF-50V-5%
^C_0805
Q273
3904 ^Q_BJTN_SOT-23
Q274
R289
RFZ44
Q275 47
3906 ^R_0805
^Q_BJTP_SOT-23
-110_B
3 2
1
D
DC FAULT
PROTECTION
D219
R263
G
10-1/4W
D220
2N5064
R264
2N5064
C
100-1/4W
P1
CHANNEL 2
WIRES TO
SPEAKER
SPEAKER OUTPUT
OUTPUT PCB
BR-POS
E200 JP15
J203 +
TO CH 1
SHEET 1
5-WAY
BINDING
POST
R262
CH 2
12-5W
BR-NEG
J203 -
E201 JP16
R255
12-5W
SPEAKER CONNECTORS
ON BREAKAWAY PCB
FROM SHEET ONE
B
A
SIZE FSCM NO. DWG NO. REV
SH-002451-00
D 4
SCALE CAD FILE NO. SHEET
NONE RMX2450-4.sch 3 OF 4
PLOT DATE:
1
Thu Sep 07, 2000
45