A B C D

1N4740 R30 D8
+16V C14
330 D7 R29 22 1N4002TR R20
D11 100V 2.7K +V
2K C3
1N754ARL C13 R19
D12 2 1 10V 680 C8 2W
6.8V 47 Q7
50V 1/2W 680 pF MJE-15030
1N914 50V
1 200V Q3 Q2 Q1 1
Q15 MJ15022 MJ15022 MJ15022
D6
R38 R28 MPS-A56 C7 1N914
10K R16 .0022 R10
R37 2.2M 1.5K C6
2.2K C16 470 D2
R11 R12 R3 R4 R5
2.2 Q11 .0022
R17 .33 .33 .33
50V 2 R9
MPS-A06 100V 33K 2.7K 10W 10W 10W
R27 R26 560 1N746 2
1/2W 100 L1
22 22 500
D1 3.3V 1/2W
1 CW Q9 J1
1N914 .5 uH
J5 Bias MPS-A06
Q13 Q14 AP1 R33
Line In TIP R1 C1 R21 J2
3.3
D9 MPS-A55 1N914 D4
TIP_SW 2.2K .22 C2 47K R13 1W
A56 A56 C9
SLVE_SW 1N746 S Q10 D3 R34
.001 R2 3.3V 2.7K 10
G Q16 100 pF R14 1/2W 1N746 2 TIP
SLEEVE 27K D 3.3V R8 R7 R6 2W
D10 C10 C5 .33 .33 .33 TIP_SW
2 J6
1N746
J175 33K
R15
10W 10W 10W C17 SLVE_SW
J3 2
Line Out .0022
TIP 3.3V 56 pF Q12 R18 .1
TIP_SW
100 D5 470 100V SLEEVE
1/2W 1N914 MJE-15031
1 OUTPUT
SLVE_SW R24 MJE-340 Q8 3
TIP
SLEEVE
560 MJ15023 MJ15023 MJ15023
R44 100V R22 Q6 Q5 Q4 TIP_SW
C11 22 C4
2.2K 330 100 J4
C12 SLVE_SW
35V
R23 680 pF 200V
2 -V
SLEEVE
J7 10 OUTPUT
1
R31 R32
2

3 R25 150 C15 22

+16V 35V R35 R45 R36
.022
1500 -01 ASSY ONLY .33 .33 .33
4 330
-16V C27 1 +16V 10W 10W 10W
R43 R41
5

3 6
47
5W
C24 C22 47
5W
D17
1 4 4 4
3
1500 1500 1N5353B
10per 35V D13 35V
6 D15 16V
7 1N4002 D18 1 2 3 4 5 6 7
CHASSIS C23
MOUNTED 7 1N5353B
PWR SWITCH 1500
35V R42 16V 1 ASSY P/N 07-589-01
D16
BLK
FUSE J13 D14 ASSY P/N 07-589-02
47
AC 5W -16V
J12 J11 C26
WHT
.0033 J9 -
250V
DELETED THERMAL SWITCH &
CAUTION:
T1
1 11/08/04 MTG HARDWARE N01690 REM
J8 J20 - + J19
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. 1 3 0 10/30/03 INITIAL ISSUE -
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED J14 +V
REV Date DESCRIPTION Ecr(s)/Ecn(s) Chgd By Appvd by Date
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND 4 J21 C18 C19
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. 5 R39 3300 3300 THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC
J15 CT 21-204-01 8.2K 80V 80V
J10 CHASSIS 1/2W
NOTES: 6 J22

+
Signatures: Date:
4 1) CAUTION: SHOCK HAZARD!!
2 7
MOUNTED
Drawn: TEK 10/14/02 11880 Borman Drive, St. Louis, MO 63146
4
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER J16 R40 First Used On:
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE 5 C20 C21
Checked: {Checked By}
TOUCHING INTERNAL PARTS. 8.2K Released:
-
3300 3300
J17 C25 J23 1/2W 80V 80V
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. Plot Date: Mon Nov 08, 2004 Drawing Size: B Drawing Title:
350WATT POWER AMP
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. 5 -V Plot Time: 13:39:52 Drawing Type: Schematic
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE J18 .0033 3 Tolerance: Class Code: NONE Drawing Number:
AND 10 MEGOHM DIGITAL VOLTMETER. 250V
Sheet 1 of 1 07S589

A B C D

GT3500H ©2007 LOUD Technologies Inc. All rights reserved Power Amplifier PCB Schematics PAGE 1