Mackie 408S User Manual

PPM series
Professional Powered Mixers:
406M, 408M, 808M, 408S and 808S
SERVICE MANUAL
1999, 2000 MACKIE DESIGNS, INC.
820-185-00
EFX
MON
HI
12kHz
HI
12kHz
MID
2.5kHz
MON
MID
2.5kHz
MON
HI
12kHz
MID
2.5kHz
MON
HI
12kHz
MID
2.5kHz
MON
HI
12kHz
MID
2.5kHz
MON
HI
12kHz
MID
2.5kHz
MON
HI
12kHz
MID
2.5kHz
MON
HI
12kHz
MID
2.5kHz
LOW
80Hz
PAN PAN PAN PAN PAN PAN PAN PAN
VOLUME CH. VOLUME CH. VOLUME CH. VOLUME CH. VOLUME CH. VOLUME CH. VOLUME CH. VOLUME CH.
1
EFX
LOW
80Hz
2
2
EFX
LOW
80Hz
3
3
EFX
LOW
80Hz
4
4
EFX
LOW
80Hz
5
5
EFX
LOW
80Hz
6
6
EFX
LOW
80Hz
7
8
7
EFX
LOW
80Hz
8
EFX BYPASS
EFX DRIVE
LEVEL
120
NORMAL
INPUT
LEVEL
SET
INPUT
LEVEL
SET
INPUT
LEVEL
SET
INPUT
LEVEL
SET
INPUT
LEVEL
SET
INPUT
LEVEL
SET
INPUT
LEVEL
SET
INPUT
LEVEL
SET
EFX
CLIP
PARAMETERS
100
100
REVERBS
DELAYS
CHORUS
FLANGE
DAMPING
DEPTH
PHASER
TIME
RATE
NORMAL
NORMAL
CUSTOM 32-BIT PRECISION
DIGITAL STEREO EFFECTS PROCESSING
EFX WIDE
MAIN-STEREO/MONO EQUALIZER
30
CLIP
5
5
0
10
15
20
EFX FOOT
SWITCH
RIGHT RETURNLEFT RETURN
SEND
L MIXER OUT R MIXER OUT COMPRESSOR
L POWER
AMP IN
R POWER
AMP IN
EFFECTS
(OVERRIDES INTERNAL EFX)
MONITOR
MAINS
TAPE IN
TAPE OUT
LEVEL
MIC 1 MIC 2 MIC 3 MIC 4
MIC 5 MIC 6
INSERT
INSERT INSERT INSERT INSERT
LINELINELINELINE
LINELINE
INSERT
+15
U
OO
1K50025063 125 16K
LEVEL
2K 4K 8K
MAIN
MASTER
EFX TO
MAIN
U
OO
+10
MASTER OUTPUT SECTION
LINE
U
+12dB
OO
L
R
R
L
POWER
OUT
MONITOR EQUALIZER
15-
15+
5
10
0
5
10
-15
+15
5
10
0
5
10
15-
15+
5
10
0
5
10
-15
+15
5
10
0
5
10
1K50025063 125 16K2K 4K 8K
MONITOR
MASTER
EFX TO
MON
U
OO
+10
U
+12dB
OO
75Hz RUMBLE
REDUCTION
LEFT/MONO
RIGHT
LEFT/MONO
RIGHT
MIC 7
MIC 8
75Hz RUMBLE
REDUCTION
PHANTOM
POWER CH 1-8
BREAK
(MUTES CH 1-6)
808S
POWER AMP ROUTING
STEREO
MIC/
LINE
HI-Z
STEREO
MIC/
LINE
HI-Z
SM. ROOM
MD. PLATE
LG. PLATE
LG. HALL
GATED
REVERSE
CATHEDRAL
MD. HALL
SPRING
PHASER
DELAY 4
CHORUS
DELAY 3
DELAY 1
FLANGE
DELAY 2
IN
OUT
STEREO MAINS
LEFT = MAIN
RIGHT = MONITOR
2 X 600W STEREO
LEVEL
30
CLIP
5
5
0
10
15
20
LR
U
OO
+10
U
+15-15
U
+15-15
U
+12-12
1
U
+20dB
OO
HILOW
NORMAL
U
OO
+15
U
OO
+10
U
+15-15
U
+15-15
U
+12-12
U
+20dB
OO
HILOW
NORMAL
U
OO
+15
U
OO
+10
U
+15-15
U
+15-15
U
+12-12
U
+20dB
OO
HILOW
NORMAL
U
OO
+15
U
OO
+10
U
+15-15
U
+15-15
U
+12-12
U
+20dB
OO
HILOW
NORMAL
U
OO
+15
U
OO
+10
U
+15-15
U
+15-15
U
+12-12
U
+20dB
OO
HILOW
NORMAL
U
OO
+15
U
OO
+10
U
+15-15
U
+15-15
U
+12-12
U
+20dB
OO
HILOW
NORMAL
U
OO
+15
U
OO
+10
U
+15-15
U
+15-15
U
+12-12
U
+20dB
OO
HILOW
NORMAL
U
OO
+15
U
OO
+10
U
+15-15
U
+15-15
U
+12-12
U
+20dB
OO
HILOW
NORMAL
RL RL RL
RL RL RL RL
RL
U
OO
+15

Mackie 408S Specifications

General

Type	Analog
Channels	8
Microphone Inputs	4
Line Inputs	8
Phantom Power	Yes
USB Interface	No
Mic Preamps	4
EQ	3-band
Headphone Output	1

Summary

Introduction

Service Technical Assistance

Provides contact information for technical support for authorized service centers.

808S Front Panel Layout

Block Diagram - Mono Models

Block Diagram - Stereo Models

Technical Specifications

808M/808S Power Amplifier Theory

Safety Test Procedure

Amplifier Tests: 808M/808S

Amplifier Tests: 406M/408M/408S

Power Consumption

DC Supplies

Bias Adjustment

Instructions for adjusting amplifier bias voltage for optimal performance.

Power Tests

Procedures for testing output power and clipping characteristics.

EFX Signal Flow

Block Diagrams

Visual representations of the EFX signal path.

Front Panel Controls and Adjustments

EFX Controls on Mixer Board

EFX Circuit Overview

EFX Functionality

Connector Interfaces