32 QSC Audio Products, Inc.
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NOTES: UNLESS OTHERWISE SPECIFIED
A
B
8
7
6
5
8 67 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
D1432
REV
SH
A
1
DWG NO.
B
2
3
4
SIZE FSCM NO. DWG NO.
SCALE CAD FILE NO. SHEET
REV
D
JP12
-
RED
BLU
WHT
BLK
WHT
AC INPUT, LOW (ALL)
TO POWER SWITCH
CIRCUIT BREAKER
USA: 15A-125V
EUROPE: 7.5A-250V
0V
WHT
J8A
J9A
20 VAC TO FAN POWER RECTIFIER
3
1
2
LINE
NEUT
GND
IEC AC INLET
JSW
JP10
ATTACH TO HS-1
60C 100 OHM
R7
60C 100 OHM
R4
28V PRI-SIDE DC FAN SUPPLY
1.1 AMP
R1
3
AC1
1
+
2
-
4
AC2
BR1
200V-1A
C6
1000-35V
MAINTAIN FULL
PRI-SEC CREEPAGE
9
J204:9
8
J204:8
8
J104:8
D3
1N4148
D2
1N4148
9
J104:9
TH_A
SEE SH 1
ATTACH TO HS-2
TRANSFORMER PRI LEADS
-
-
--
RED
BLK
BRN
GRY
GRY
RED
BRN
GRY
BLK
WHT
BLU BLU
-
BRN
100V 120V 240V
AC INPUT, HIGH (ALL)
AC VOLTAGE
PROGRAMMING
TERMINALS
1 OHM 30A
R21
U-I CORE POWER TRANSFORMER
NOTE SPLIT SECONDARY WIRING
FROM EACH LEG TO EACH CHANNEL
BRN
120V
20V
J3A
J7A
J5A
J4A
J2A
J6A
COIL TWO
COIL ONE
BLU
BLK
GRY
RED
0V
20V
120V
QUICK
CONNECT
PC-MTD
TABS
E5
E6
E7
E8
E15
E16
2
AC1
1
+
4
-
3
AC2
BR200
400V-25A
0.22-200V
C227
F200
12A-125V
E1
E2
E3
E4
E13
E14
2
AC1
1
+
4
-
3
AC2
BR100
400V-25A
RECTIFIERS BR100, 200 AND C127-227 ARE
LOCATED OFF THE MAIN PCB, MOUNTED
TO CHASSIS.
F100
12A-125V
0.22-200V
C127
3
J21:3
+VCC_A
E10
E9
-VCC_A
MUTING AND THERMAL PROTECTION.
15K-2W
R2
LD1
GRN
PILOT
LED
D1
1N4004
3
J157:3
+VCC_B
-VCC_B
E11
E12
1.0M
^R_1206
R3
1.0M
^R_1206
R6
R5
15K-2W
R26
220K
^R_0805
D15
15V
C7
4.7-250V
R8
2.0K
^R_0805
Q1
300V-.2A
D4
1N4148
D5
1N4148
D7
1N4148
D14
1N4148
R15
470K
^R_1206
MAINTAIN FULL
PRI-SEC CREEPAGE
R10
150K
^R_1206
C8
47-50V
P1
D8
15V
R27
220K
^R_1206
P1
MPSW05
Q5
Q4
3906
D12
1N4004
+14V
2
J204:2
2
J104:2
R18
220K
^R_1206
+15V_B
D13
1N4004
1
J18:1
+
P1
R19
6.81K
^R_1206
D10
1N4004
D9
1N4148
1
J204:1
1
J104:1
-14V
-15V_B
D11
1N4004
P1
BR_CUT
3904
Q9
Q8
3904
3906
Q6
Q7
3906
3
J104:3
-15V_A
+15V_A
R25
47
^R_0805
BR_CUT
3
J204:3
.1-5OV
C11
R17
120-2W
Q3
TIP31C
R14
6.81K
^R_1206
R9
6.81K
^R_1206
R13
2.0K
^R_0805
1
5
4
2
6
3
4N29
U2
2
J157:2
2
J21:2
1
J157:1
1
J21:1
-
2
J18:2
TO DC FAN
D6
1N4148
3
PLOT DATE:
SH-001451-00
SH-001451-00
OF
NONE
R12
470K
^R_1206
4
4
2500V
HI-POT
RMX1450-4.sch
33
Thu Sep 07, 2000
7.8 RMX 1450 Schematic Diagram 3 of 3
Power Supply
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