Rmx 2450 Schematic Diagram 1 Of 3 Channel 1 - QSC RMX 850 Technical & Service Manual

8
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.
D
26-LINE RIBBON CABLE
CONNECTS BREAKAWAY
INPUT PCB TO MAIN PCB
2
J101 3
J1:1
1
GND 1
RING R
J1:2
J102 TIP +IN A 2
T
S
J5:5
5
CH1_+IN
J1:3
J5:4
4 -IN A 3
CH1_-IN
J5:3 J1:4
4
3
GND
CHASSIS_GND
J5:2
2
CH2_-IN
J5:1
1
CH2_+IN
C
RING R
J202 TIP T
S
2
J1:5
J201 3 CLIP-LIM A 5
J1:6
1
GND 6
J1:7
FILT-CAP A 7
SW1:1 J1:8
1 11 FILT-SEND A 8
CLIP LIM A (1)
J1:9
FILT-BYP A 9
SW1:2
J1:10
2 12
FILTER 30 HZ (2)
GND 10
J1:11
SW1:3
11
3 13
J1:12
FILTER BYPASS A (3)
GND 12
SW1:4
4 14
J1:13
PARALLEL
INPUTS 13
SW1:5
(4, 5)
5
15
J1:14
BR M SEND (HI-SIG A) GND 14
SW1:6
6 16 BR MONO FEED
J1:15
15
SW1:7 J1:16
7 17 16
BRIDGE
B J1:17
MONO
(6, 7) 17
J1:18
FILT BYP B 18
SW1:8 J1:19
FILTER BYPASS B (8)
8 18 FILT SEND B (POT) 19
J1:20
FILT CAP B 20
SW1:9
J1:21
FILTER 30 HZ (9) 9
19
GND 21
SW1:10
J1:22
CLIP LIM B
10 20 22
CLIP LIM B (10)
J1:23
GND 23
J1:24
-IN B 24
J1:25
+IN B 25
J1:26
GND 26
Gray shading indicates
A
signal path
NOTES: UNLESS OTHERWISE SPECIFIED
8
RMX Series Technical Service Manual
7 6
CHANNEL-1
ROUTE THIS GROUND
ROUTE THIS GROUND TO "P" GND AT
TO "A" GND AT HEAT SINK COMMON
JI-2 INPUT CABLE R20 BETWEEN CH A AND CH B
C101
3.3-1W
A1 P1
R_RES1W
180p-5%
^C_0805
J2:1 R105
1
10.0K
A1
J2:2 R100
^R_0805
2
10.0K NE5532
^R_0805 U101:1
R102
C106
+
3
1K
J2:3 R101
1
^R_0805 CHANNEL 1 GAIN
3 47-10NP
-
2
10.0K
R113
^R_0805
R106 W
R112
274
J2:4 10.0K 10K
^R_0805
4
^R_0805
A1
C103
A1
180p-5%
10K LINEAR 3B
RIGHT ANGLE POT
^C_0805
FILT-CAP A
.22-5%
FILT-SEND A
FILT-BYP A
J2:5
C108
5 SW TO GND FOR CLIP LIM
J2:6
.15-5%
6 +14V
C102
J2:7
7
P1 .1-50V-10%
J2:8
8 ^C_1206
J2:9 A1
9
A1
J2:10
10
U10:1
J2:11
LM13600M
BR MONO FEED
11 3
+
J2:12
7 5 2
12
4
-
BR_RET
J2:13
13
C132
47P-50V
Q100
J2:14
^C_1206 A1
14 A1
3906
^Q_BJTP_SOT-23
R111
J2:15
BR_BAL
15
820
J2:16
BR_CUT
^R_0805
16
C130
R197
J2:17
17
100p-50V 100
A1
^C_1206 ^R_0805
J2:18
F_BYP_B
18
-14V
J2:19
F_SND_B
19
J2:20
F_30_B
20
J2:21
21
J2:22
CLIP_B
22
J2:23
23 A1
J2:24
-IN_B
24
J2:25
+IN_B
25
J2:26
26
7.9 RMX 2450 Schematic Diagram 1 of 3
Channel 1
7 6
5 4
C172 R173 R174
.0033 150K 4.7K ^R_0805
^R_1206 ^R_0805
R190
2.00K
^R_0805 R177
12K-1W
R178 R179 D174
10V-1N4740A
150K 4.7K
^R_1206 ^R_0805
.36W at full clip
SPEAKER BUS -- BEFORE FUSE
Q101
3904 R128 R129
^Q_BJTN_SOT-23
10K 1.5K
R125
R166
47K ^R_0805
^R_0805
C181
^R_1206
464K
^R_1206
0.01
C111 D104
27p-200V-COG
1N4148 P1
Q102
+15V_A
^C_1206 ^D_SOT-23 3904
^Q_BJTN_SOT-23
R130
820
^R_1206
D107
D101
C107
P1
15V-1W
C110
27p
D102 D105
^C_0805
C109
6
-
1N4148 1N4148
.15-5%
7
^D_SOT-23 ^D_SOT-23
5 U101:2
+ R131
W
D103 D106
NE5532
100
C116
D100 1N4148 1N4148 BIAS .022
^D_SOT-23 ^D_SOT-23
15V-1W
LD100
RED
D110
CLIP CH 1
P1
-15V_A
C125
R120
390
100-16NP
^R_0805
R138 R122 SPEAKER BUS -- AFTER FUSE
4.7K
23.2K-1%-1/2W
^R_0805
A1
R123
R183
23.2K-1%-1/2W
47K
R126 R194 ^R_0805
R167
12K-1W
1K 464K
^R_0805
^R_1206
R186 R187
150K 4.7K
^R_1206 ^R_0805
R195
2.00K
^R_0805
C179 R192 R193
.0033 150K 4.7K
^R_1206 ^R_0805
5 4
2
3
POS STEP DRIVER
C170
47pF-50V-5%
Q170
^Q_BJTN_SOT-23
R170
^C_0805
RFZ44
Q171 47
R172
D171
3904
^R_0805
470K
1N4148
U170
^D_SOT-23
1 8
GND ^U_LM311 V+
R175
2 7
3.01K
3 6 Q172
BAL/STR
^R_0805 3906
4 5
V- BAL
^Q_BJTP_SOT-23 C173
^LM311-SMT 100-25V
TO -VMED
+110_A
R118
8.2K-5W
R119
8.2K-5W
R181
R136
22-1W
1.5-2W
FP
LD101
YELLOW
Q103 Q107 Q109 Q111 D117
SIG CH 1 2SA1943 2SA1943 2SA1943 2SA1943 1N4004
P1
D116
1N4148
5.6V-.25W
Q105
^D_SOT-23
MJE15032
R146
W
R139
R198
NEG 3.3-1W
2.2K
CURRENT
LIMIT C119 2.2K-5W
P1
.022
POS
R157
R140
CURRENT
2.2K
LIMIT
W R147
R134 2.2K-5W
3.3-1W
50
NTC R158
2.2K-5W
Q106
MJE15033
D115
5.6V-.25W
1N4148
^D_SOT-23
P1
Q104 Q108 Q110 Q112
2SC5200 2SC5200 2SC5200 2SC5200 D118
1N4004
R182
R133
R137
22-1W 1.5-2W
8.2K-5W
FP
R135
8.2K-5W
-110_A
C176
47pF-50V-5%
C177
^C_0805
47pF-50V-5%
R185
^C_0805
470K Q173
D177 3904 ^Q_BJTN_SOT-23
^R_0805
U171
1N4148
Q174
1 8
GND ^U_LM311 V+ ^D_SOT-23
R189
2 7 RFZ44
Q175
47
3 6 R191
BAL/STR 3906
^R_0805
4 5
V- BAL
2.2K
^Q_BJTP_SOT-23
^LM311-SMT
^R_0805
NEG STEP DRIVER
3 2
1
+110_A
C120
12000-63V
D
R180
5.1K-5W
+55_A
D175
DC FAULT
MUR1520
PROTECTION
C174
0.1-250V
D119
R165 R163
G
15K-1W 10-1/4W
D120
2N5064
R164
2N5064
100-1/4W
C121
P1
12000-63V
C
SPEAKER CONNECTORS
ON BREAK-AWAY PCB.
R160 CONTINUED, SHEET 2
CHANNEL 1
SEE SH 3 5.6-2W
SPEAKER OUTPUT PCB
CT_A
F100 L100 E100
JP14 BR-POS
2uH J103 +
25A-125V
C124
0.068-250V
5-WAY
BINDING
POST
R161 R162
CH 1
C122
12-5W 12-5W
BR-NEG
E101
12000-63V JP13 J103 -
P1
WIRES TO
R154 R155 BREAK-AWAY
SPEAKER
12-5W 12-5W
OUTPUT PCB
C126
0.068-250V
C175
.1-250V
D176
B
MUR1520
R24
BR_BAL
3.01K
P1
^R_0805
-55_A
SP_B
C123
12000-63V
-110_A
A
SIZE FSCM NO. DWG NO. REV
SH-002451-00
D 4
SCALE CAD FILE NO. SHEET
NONE 2 OF 4
P:GPE
PLOT DATE:
PRODUCTS\PRMX-SERIESQSC245
1
0 Thu Sep 07, 2000
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