Rmx 850 Schematic Diagram 3 Of 3 Power Supply - QSC RMX 850 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.
D 8
AC VOLTAGE
PROGRAMMING
TERMINALS
!
R21
1 OHM 30A
AC INPUT, HIGH (ALL)
QUICK
100V 120V 240V
CONNECT
PC-MTD
TRANSFORMER PRI LEADS TABS
BRN BRN BRN J2A
J3A
GRY GRY -
BLK BLU BLU J4A
C
- - BLK J5A
J6A
- - GRY
J7A
WHT RED RED
BLU BLK - J8A
J9A
RED WHT WHT
AC INPUT, LOW (ALL)
!
CIRCUIT BREAKER
!
USA: 10A-125V
EUROPE: 5A-250V
JSW JP12
IEC AC INLET
TO POWER SWITCH
LINE 1
JP10
2
NEUT
GND 3
20 VAC TO FAN POWER RECTIFIER
B
A
NOTES: UNLESS OTHERWISE SPECIFIED
8
RMX Series Technical Service Manual
7 6
RECTIFIERS BR100, 200 AND C127–227 ARE
LOCATED OFF THE MAIN PCB, MOUNTED
TO CHASSIS.
J21:3
U-I CORE POWER TRANSFORMER 3
NOTE SPLIT SECONDARY WIRING
FROM EACH LEG TO EACH CHANNEL
E13
F100
E1
10A-125V BR100
400V-25A
E2
120V
C127 E14
BRN E3
1 4
+ -
0.22-200V
E4
20V
BLU
E15
F200
0V
E5
BLK
BR200
10A-125V
400V-25A
E6
COIL ONE
E16
E7
C227 1 4
+ -
0.22-200V
COIL TWO
E8
120V
GRY
20V
RED
0V
WHT
MAINTAIN FULL
PRI-SEC CREEPAGE
R1
1.1 AMP
7.5 RMX 850 Schematic Diagram 3 of 3
Power Supply
7 6
5 4
MUTING AND THERMAL PROTECTION.
J157:3
3
D1
+VCC_A
E9
1N4004
LD1
GRN
PILOT
R27
LED
220K
E10
^R_1206
-VCC_A R2
15K-2W
R3 R6
+VCC_B 1.0M 1.0M
E11
Q1
^R_1206 ^R_1206
D4
300V-.2A
R5
1N4148
15K-2W
E12
D5
R26
220K
-VCC_B 1N4148
^R_0805
D7
1N4148
D6
J157:2
2
D2 D3
1N4148
J21:2
1N4148 1N4148 2
!
J104:8
8
2500V
J204:8
HI-POT
8
R4 R7
60C 100 OHM 60C 100 OHM
ATTACH TO HS-2 ATTACH TO HS-1
TH_A
J21:1
J204:9
9 1
SEE SH 1
BR1
J104:9
J157:1
9
200V-1A
3 4 1
AC1 AC2
28V PRI-SIDE DC FAN SUPPLY
C6
1000-35V
5 4
3 2
+14V
+15V_B
D8
D13
R10 R18
150K 220K 1N4004
15V +15V_A
^R_1206 ^R_1206
2
J204:2
C8
2
47-50V J104:2
D12
Q4 P1
P1
1N4004
3906
Q5
C11
MPSW05
.1-5OV
D11
D14
1N4004
1N4148
J104:1
C7
1
4.7-250V J204:1
1
-15V_A
D10
R15 D9
1N4004
470K -14V
1N4148 -15V_B
P1
^R_1206
MAINTAIN FULL
PRI-SEC CREEPAGE
J18:1
1
+
TO DC FAN
J18:2
-
2
U2
4N29
Q3
R17
TIP31C
120-2W
3 2
1 D
BR_CUT
Q9 Q8
3904 J104:3
3904 3
J204:3
3
R25
P1
BR_CUT
47
Q7
^R_0805
Q6
3906
3906
C
B
A
SIZE FSCM NO. DWG NO. REV
D
SH-000850-00 3
SCALE CAD FILE NO. SHEET
NONE RMX850-3.sch 3 OF 3
PLOT DATE:
1
Thu Sep 07, 2000
29