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C00
SCHEMATIC,
POWER SUPPLY/AMP
MG300+300W
RJ
2013
LOUD
TECH
NOLOGIES
INC.
2038306-XX
3
1
3
4
5
6
7
8
D
C
B
A
7
8
6
5
4
C
ALL RIGHTS
RES
ERVED
THE INFORMA
TION CONTA
INED
HEREIN
IS PROPRIETARY AND
CONFIDENTIAL
PROPERTY OF LOUD
TECHNOLOGIES
INC.
3
APPROVAL
S
D
ATE
D
RAWN:
CHECKED
:
NP
ENG:
MATERIAL:
MFG:
MFG
ENG:
IS
SUED
:
D
S
IZE
D
WG FILE:
2
NONE
S
CA
LE:
D
WG.
NO.
S
HEET
1
1
OF
REV
.
A
B
C
D
2
Technologies Inc.
16220 WOOD
-RED
RD NE
WOODINVILLE, WA 98072
2038306-XX-C00.sch
AD
D
PER
ASSY
D
WG
330 Volts
LIMIT
5.1V
+9V Typ.
CURRENT
100-120VAC
or
220-240VAC INPUT
POWER SWITCH
B
RN
B
LU
L
N
E
CHASSIS GND
STUD
B
RN
B
LU
GRN-YEL
*HS
P/N 2038494
ASSY
2038493
P/N 0030476
8/22/2012
(MOUNTED
TO Q3,Q4 HS)
D
C
0FF
HVGOOD
Fosc=95KHz
Fres=110KHz
CUT
JUMPER
FOR
220-240V
-02
IS
DUAL
AMP;
-03
IS
BRIDGE
AMP
AD
D
PER
ASSY
D
WG
POWER_SUPPLY
Z4
SCH1
SCHEMATIC
POWER SUPPLY/AMP MG300+30
0W
2038306-XX
RTV1
2034504 SILICONE RTV NON-FLOWA
BLE PA
STE
PCB1
PCB
FAB
POWER
SUPPLY/AMP
MG300+300W
2038305-02
R40 68K 1W
R41 68K 1W
C
8
2200PF
250V
1
-IN
2
+IN
9
COMP
3
S
YNC
6
RT
5
CT
7
D
SCH
10
SH
DN
8
S
FST
16
V
REF
11
OUTA
14
OUTB
4
O
SC
15
VC
C
13
VC
12
GND
U1
SG3525A
1
3
2
4
6
5
T1-A
16
14
15
13
12
11
T1-B
10
9
T1-C
2
3
1
Q3
FDA28
N50
2
3
1
Q4
FDA28
N50
D
10
ER1002F
D
11
ER1002F
D
12
ER1002F
D
13
ER1002F
L3
3uH
L4
3uH
C17 680UF 100V
C23 680UF 100V
C25 680UF 100V
C18 680UF 100V
C24 680UF 100V
C26 680UF 100V
R43 5.1K 2W
R46 5.1K 2W
R47 22
R48 10K0
R49
1K
1
2
3
Q5
MMBT4403
1
2
3
Q6
MMBT4403
D
15
ES1D
R50 22
R51 10K0
R52
1K
D
16
ES1D
1
4
T2-A
6
5
T2-B
8
7
T2-C
4
3
1
2
T3
1:100
R38
100
R34 100K
R36 20K
D
24
1N4
148
C30 100uF 25V
C33 470PF
C34 10uF 50V
R60 100
R61
13K3
C35
470PF
C36
0.1uF
C44
0.1uF
C46 0.1uF
7
+
6
-
1
U2-A
LM33
9
5
+
4
-
2
U2-B LM33
9
11
+
10
-
13
U2-C
LM339
9
+
8
-
14
U2-D
LM33
9
3
VC
C
12
GN
D
U2-E LM339
C47
0.1uF
C49 0.22UF
R63
390K
R65
100
R66
390K
R67
47K
C50 0.1uF
C51 0.22UF
R68 27K
R70
39K
R71
470K
R72
470K
R73 470K
R74 470K
D
30
GS
1G
1
D
IS1
2
TH1
3
CONT1
4
RES
T1
5
OUT1
6
TR1
U5-A NE556
7
GN
D
8
TR2
9
OUT2
10
RES
T2
11
CONT2
12
TH2
13
D
IS2
14
VC
C
U5-B
NE556
R75 100
C54 10uF 25V
R77 100K
C55
0.1uF
R55 4.7K
C56
0.1uF
R45
47K
C57 10uF 25V
C59
0.1uF
R56
4.7K
C63 0.1uF 200V
C64 0.1uF 200V
R64 3.32K
D
33
1N4148
R39
100
FC1
FUS
E
CLIP PCMT 5MM
D
IA
400-060-00
WL3
WIRE FOR L3
0025312
WL4
WIRE FOR L4
0025312
FC2
FUS
E
CLIP
PCMT
5MM D
IA
400-060-00
C6
1500UF
200V
C7
1500UF
200V
C9 3300pF 440V
AC
D
23
RED
R44 3.3K
R32 4.7K
C14 0.1uF
R37 100K
R33 15K
3
IN
1
AD
J
2
OUT
U6
LM317P
D
25
ES
1D
R62 22
C99
1000PF
100V
L14 20UH
C106 0.1uF
C107
0.1uF
C110 470UF 25V
R35
1K
R69 100
F1
T
10A
H
250V
T
TH1
2.5 OHM
9A
R1 300K 1W
C4 1UF 275V
C3 2200PF 250V
C2
2200PF
250V
VR1 470V
AC
C5 0.47UF 275V
T
TH2
2.5 OHM
9A
4
3
2
1
D
1
15A 600V
2
1
3
4
L2
12MH
2
1
4
3
L1 6MH
J1-1
J1-2
C10
0.47UF
400V
R31 27K
C52
0.1UF 630V
1
2
3
Q2
MMBT4401
R184 47K
1
2
3
4
U3
LTV-817M-CN
1
2
3
Q26
MCR100-6
1
2
3
D
19
B
AV99
C139 0.1UF 630V
1
2
3
D
20
B
AV99
1
2
3
D
21
B
AV99
1
2
3
D
22
B
AV99
D
26
RED
C53
0.1uF
D
28
GRN
R76 3.3K
C150 4.7uF 25V
D
29
S1B
1
2
3
Q7
MMBT4401
R188 4.7K
C58
0.1uF
1
2
3
Q22
MMBT4403
T
1
2
R2
R53 4.7K
R189
47K
R54 6.49K
D
34
5.6V
C11
0.1uF
C1 0.47UF 275V
J3
Z9
Z7
J11-1
J11-2
J12-1
J12-2
C160 100p
F
200V
R198 22
R226
22
R227 22
R228
22
C161 100p
F
200V
C162 100p
F
200V
C163 100p
F
200V
FTP1 FTP2
FTP3 FTP4
FTP5 FTP6
FTP11
FTP13
FTP12
FTP50
LBL1
LBL
IEC
POWER
RATING
10
0-120V~/
220-240V~
50-60
Hz
150
W
0017668
-13
LBL2
LBL SERIAL
NUMBER
GENERIC 35mm X 9.5mm UL
0032856
L21
2043109
L22 2043109
RTV2
2040887 SILICONE RTV NON-FLOWA
BLE PA
STE HI-TEMP (200C)
MISC1
HEA
TS
HRINK
TUBE 2:1
V
W-1 .750ID
0005458-08
J4
FTP7
FTP8
FTP9
FTP10
FTP15
+15V
[1,2]
VCC
[1,2]
VD
C_H
[1]
VAC
[1,2]
VD
C_H
[1,2]
VCC
[1,2]
VCC
[3]
-60V
[2,3]
+60V
[3]
PGND
[2]
D
C_OFF
[3]
VCC-AMP
[1]
VAC
[1,2]
VCC
VREF
Page 41 of 50
THUMP18S SER
VICE MANUAL
2038306-01 SCHEMATIC POWER SUPPLY/AMP
POWER SUPPLY