Mackie LM-3204 User manual

LM3204
32 INPUT, 2+2 BUS MIXER
SERVICE MANUAL

1995, 1999MACKIEDESIGNS,INC.
820-174-00
Page 3 is interactive

2

3
INTRODUCTION
This manual contains basic service information. It is essential that you have a
copy of the user’s manual as this contains the complete operating instructions.
TECHNICAL SUPPORT
Mackie Designs Technical Support Department is available 8AM - 5PM PST,
Monday-Fridayat1-800-258-6883. Feel free to call withanyquestions and to
speak with a carefully-calibrated technician.
DISCLAIMER
The information contained in this manual is proprietary to Mackie Designs, Inc. The entire
manual is protected under copyright and may not be reproduced by any means without
express written permission from Mackie Designs, Inc.
SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY
EXPERIENCED REPAIR TECHNICIANS ONLY
CONTENTS
INTRODUCTION.................................................................................3
Technical Support........................................................................3
Disclaimer.......................................................................................3
BLOCK DIAGRAM.............................................................................4
QUICK PARTS..................................................................................5-6
FOLD-OUT SECTIONS:
Front Board Schematics and PCB Layout..........................17-1
Rear Board Schematics and PCB Layout...........................18-1
Meter Board Schematics and PCB Layout.........................24-1
Power Supply Schematics and PCB Layout.......................25-1
ALL BOARDS

4
BLOCK DIAGRAM

5
QUICK PARTS
AUXSends (red cap)
knob 760-016-00
50Kpot 130-012-00
EQ (blue cap)
knob 760-017-00
50Kpot 130-011-00
PAN (black cap)
knob 760-018-00
50Kpot 130-012-00
Gain (white cap)
knob 760-023-00
50Kpot 130-012-00
Solo
button 760-108-00
switch 500-012-00
Faders
gnob 760-037-01
10KDpot 130-024-00
Tape/Monitor
button 760-003-00
switch 500-012-00
PhonesGain(white cap)
knob 760-023-00
50Kpot 130-012-00
SoloGain(white cap)
knob 760-023-00
50K pot 130-012- 00
Aux Returns (white cap)
knob 760-023-00
50Kpot 130-012-00
Assign toControl Room
button 760-003-00
switch 500-018-00
Power Switch
500-013-00
IEC Recept. w/fuse
holder
110V fuse
220V fuse
100V fuse
...More Stuff...
LEDs
Rudelite
304-002-00
Red 304-001-00
Yellow 304-003-00
Green 304-004-00
LineCord 6’ IEC
10A
640-001-00
XLRFemale Jack
400-002-01
1/4"Female Jack
jack 400-214-00
nut 705-003-00
washer 710-002- 00
Trim Control
knob 760-007-00
5KZDpot 130-020-00
OwnersManual
820-009-00
Phantom Switch
button
extender
switch
RCAQuad
400-022-00
Headphone Jack
Shift3-4
button760-108-00
switch 500-012-00
Mute ALT3/4
button 760-002-00
switch 500-018-00
Source Alt3/4
button 760-003-00
switch 500-018-00
05/99
400-009-00
510-001-00
510-002-00
510-001-00
760-003-00
760-015-00
500-018-00

6
QUICK SCREWS
700-028-00
700-011-00
(front surface screws)
(Side
View)
701-005-01
700-029-00
(Back
View)
700-028-00
700-028-00
Version 1.0