©1994, ©1999 Mackie Designs Inc.

All rights reserved MIC/LINE PREAMP BOARD 08 REV S 08-1

This contains all the 8Bus boards, so you can print them all out out once, if your bread is buttered that way.
08-2 MIC/LINE PREAMP BOARD 08 REV S ©1994, ©1999 Mackie Designs Inc. All rights reserved
©1994, ©1999 Mackie Designs Inc. All rights reserved MIC/LINE PREAMP BOARD 08 REV S 08-3
08-4 MIC/LINE PREAMP BOARD 08 REV S ©1994, ©1999 Mackie Designs Inc. All rights reserved
 See page 09-10
for the schematic
of the EQ module
990-016-00

©1993,©1999 Mackie Designs Inc. All rights reserved CONSOLE CHANNEL BOARD 09 REV U 09-1
 See page 09-10
for the schematic
of the EQ module
990-016-00

09-2 CONSOLE CHANNEL BOARD 09 REV U ©1993,©1999 Mackie Designs Inc. All rights reserved
©1993,©1999 Mackie Designs Inc. All rights reserved CONSOLE CHANNEL BOARD 09 REV U 09-3
09-4 CONSOLE CHANNEL BOARD 09 REV U ©1993,©1999 Mackie Designs Inc. All rights reserved
©1993,©1999 Mackie Designs Inc. All rights reserved CONSOLE CHANNEL BOARD 09 REV U 09-5
09-6 CONSOLE CHANNEL BOARD 09 REV U ©1993,©1999 Mackie Designs Inc. All rights reserved
©1993,©1999 Mackie Designs Inc. All rights reserved CONSOLE CHANNEL BOARD 09 REV U 09-7
09-8 CONSOLE CHANNEL BOARD 09 REV U ©1993,©1999 Mackie Designs Inc. All rights reserved
©1993,©1999 Mackie Designs Inc. All rights reserved CONSOLE CHANNEL BOARD 09 REV U 09-9
09-10 CONSOLE CHANNEL BOARD 09 REV U ©1993,©1999 Mackie Designs Inc. All rights reserved
©1993,©1999 Mackie Designs Inc. All rights reserved OUTPUT BOARD 10 REV U 10-1
10-2 OUTPUT BOARD 10 REV U ©1993,©1999 Mackie Designs Inc. All rights reserved
©1993,©1999 Mackie Designs Inc. All rights reserved OUTPUT BOARD 10 REV U 10-3
10-4 OUTPUT BOARD 10 REV U ©1993,©1999 Mackie Designs Inc. All rights reserved
©1993,©1999 Mackie Designs Inc. All rights reserved OUTPUT BOARD 10 REV U 10-5
10-6 OUTPUT BOARD 10 REV U ©1993,©1999 Mackie Designs Inc. All rights reserved
©1993,©1999 Mackie Designs Inc. All rights reserved OUTPUT BOARD 10 REV U 10-7
10-8 OUTPUT BOARD 10 REV U ©1993,©1999 Mackie Designs Inc. All rights reserved
©1993,©1999 Mackie Designs Inc. All rights reserved OUTPUT BOARD 10 REV U 10-9
 R-BUS
L-BUS
L-SOLO

L-MIX-B
BUS 1

AUX 1
BUS 5
BUS 3

AUX 3
AUX 5
BUS 7
METER SUB OUTS 1, 9 & 17

R-MIX-B
R-SOLO
+4/-10

AUX 6
AUX 4
BUS 8
BUS 6
BUS 4

AUX 2
BUS 2
INSERT • •
•

•
•
•

•
•
L MIX
- • •
L+R
• •
This was going to be a blank page, but I thought you •• NOTE: ALL SWITCHES SHOWN IN DISENGAGED (UP) POSITION
SUB MSTR
FADER
+ •
might enjoy coloring in this block diagram instead. ••
•• SOLO
OPTIONAL 24•E •• METER
A free box of crayons to the best entry. 24-CHANNEL MACKIE 8•BUS •• SUB OUTS 2, 10 & 18
EXPANDER CONSOLE •• INSERT
•• +4/-10

•
• ••
••
••

•
•• •
• •
•
• R MIX • •
- L+R
SUB MSTR • •• • •
MIC IN MIC/LINE INSERT +
FADER
2
•

•
0L –20dB •
1 • SOLO
3
SUB(#3
MASTER 1&2

•
• •
1-2 - 8 IDENTICAL)
• • PAN •
• EQ
PHANTOM POWER IN/OUT •
(PER 8 CHANNELS)
•
LO CUT • ••
IN/OUT 3-4 LEVEL
PARAMETRIC SHELVING
+ • • •
- • 75Hz •• EQ EQ
CHAN • • • AUX OUT
HPF HI MID LO MID HI LO • FADER • • •
• • • •
• PRE EQ MUTE • 5-6
LINE TO AUX MOD • • •
TRIM • SOLO
IN FLIP
GAIN FREQ "Q" GAIN FREQ • HI/LO EQ •
AUX SEND 3
(#4, 5, 6 IDENTICAL) •
• • TO MIX B • 7-8
SPLIT •
• •
• AUX OUT
• • • •
POST L/R LEVEL + •
• PRE • • •
TAPE + • AUX 1 • -
- • •
IN
POST
• • • •
• SOLO
+4dBU/–10dBV Select • PRE
AUX 2
SOLO
• AUX SEND 1
(#2 IDENTICAL)
•
(PER 8 CH'S) AUX 3
POST
PRE
SOURCE PFL MOD ••
• AUX 5 •
•
• POST AUX 4 •
DIRECT PRE •
OUT SHIFT AUX 6 •
•
•
• •
• •
MIX-B PAN GLOBAL OPTIONAL METER BRIDGE
INPUT SOURCE FLIP SW • • • SELECT
1 OF 16 (24) (32) • MIX-B SOURCE MOD CHANNEL LEVEL •
vu vu

TAPE IN
PHONES 1
CH. OUT SOURCE

MONITOR
• • PHONES 1
LEVEL L PHONES 1
• • L • MIX-B OUTPUT
• • • • • •
•
MIX B MIX-B OUTPUT
• MASTER • • • • AUX 3/4
1-2 • • • R
• • R • • •
• • AUX 5/6

• • •
• 3-4 •
• • • • EXTERNAL SOLO
• •
LEFT • • • • • MIX-B (DEFEATED WHEN
• 5-6 CNTRL RM SOURCE

•
(MONO) BALANCE TO IS SELECTED)
• • L/R MIX L UNBAL OUTPUT
•

•
• INSERT PHONES 2
• • • 7-8 L METER SOURCE
RIGHT LEVEL ••
• + 2
R METER
1 MONITOR
• INSERT • • • •
• - •
L/R 3
• L BAL OUTPUT • PHONES 2
• LEVEL PHONES 2
L/R L

•
R UNBAL OUTPUT • • MIX-B
• • OUTPUT
• MIX •
SOLO • •

•
FADER •
STEREO AUX RETURN 1 • INSERT • • AUX 3/4
(#2 IDENTICAL)
• R
+ 2 AUX 5/6 • •
• • 1 • •
- 3 •
R BAL OUTPUT • • • EXTERNAL SOLO
•
LEFT • • PHONES 1 • (DEFEATED WHEN
(MONO) CNTRL RM SOURCE
• IS SELECTED)

• •
• PHONES 2
••
RIGHT LEVEL
• •
L/R
• •
•
STEREO AUX RETURN 3 SOLO
•
(#4 IDENTICAL) STUDIO
SOLO LEVEL
CONTROL MONO • L
• • • • STUDIO
• •• •••• • • • OUTPUT
•
LEFT • • • • • • R
LEVEL L/R • • • STUDIO
(MONO) • • SOLO •
LEVEL OUTPUT
• TALKBACK: •
• • •
RIGHT SOLO
• • MIC LEVEL TO AUX 1
STEREO AUX RETURN 5 To on-ramp #257 TO AUX 2
• • L
CNTRL RM
(#6 IDENTICAL) of the Santa Ana Freeway MIC • L/R MIX
• • CNTRL RM OUTPUT
• TO TAPE/ • LEVEL
• SUBMASTER MIX-B • •
• • TO PHONES
2-TK IN • (AND STUDIO) • R
• •
L 2-TK • • CNTRL RM
OUTPUT
2-TK IN MONITOR
EXTERNAL
R SOURCE

EXTERNAL • •
IN L
EXTERNAL •
CONTROL ROOM
IN R PAD LOGIC

10-10 OUTPUT BOARD 10 REV U ©1993,©1999 Mackie Designs Inc. All rights reserved
©1994,©1999 Mackie Designs Inc. All rights reserved METER BOARD 11 REV J 11-1
11-2 METER BOARD 11 REV J ©1994,©1999 Mackie Designs Inc. All rights reserved
©1994,©1999 Mackie Designs Inc. All rights reserved JACK FIELD BOARD 12 REV S 12-1
12-2 JACK FIELD BOARD 12 REV S ©1994,©1999 Mackie Designs Inc. All rights reserved
©1994,©1999 Mackie Designs Inc. All rights reserved CONSOLE TAPE OUT BOARD 13 REV S 13-1
13-2 CONSOLE TAPE OUT BOARD 13 REV S ©1994,©1999 Mackie Designs Inc. All rights reserved
©1994,©1999 Mackie Designs Inc. All rights reserved CONSOLE TAPE INPUT BOARD 14 REV S 14-1
14-2 CONSOLE TAPE INPUT BOARD 14 REV S ©1994,©1999 Mackie Designs Inc. All rights reserved
 AGND

-18VDC +5VDC

+18VDC +12VDC

+48VDC DGND

BROWN = DGND
VIOLET = +5VDC
ORANGE = +12VDC
YELLOW = +48VDC
RED = +18VDC
BLACK = AGND
BLUE = -18VDC

©1994,©1999 Mackie Designs Inc. All rights reserved POWER SUPPLY BOARD 15 REV S 15-1
15-2 POWER SUPPLY BOARD 15 REV S ©1994,©1999 Mackie Designs Inc. All rights reserved
©1994,©1999 Mackie Designs Inc. All rights reserved EXPANDER BOARD 19 REV S 19-1
19-2 EXPANDER BOARD 19 REV S ©1994,©1999 Mackie Designs Inc. All rights reserved
©1994,©1999 Mackie Designs Inc. All rights reserved POWER DISTRIBUTION BOARD 20 REV C 20-1
 TOP TOP TRACES BOTTOM TRACES

20-2 POWER DISTRIBUTION BOARD 20 REV D ©1994,©1999 Mackie Designs Inc. All rights reserved
©1994,©1999 Mackie Designs Inc. All rights reserved EXPANDER OUTPUT BOARD 21 REV S 21-1
21-2 EXPANDER OUTPUT BOARD 21 REV S ©1994,©1999 Mackie Designs Inc. All rights reserved
©1994,©1999 Mackie Designs Inc. All rights reserved ANALOG METER BOARD 22 REV H 22-1
22-2 ANALOG METER BOARD 22 REV H ©1994,©1999 Mackie Designs Inc. All rights reserved
©1994,©1999 Mackie Designs Inc. All rights reserved LED METER BOARD 23 REV F 23-1
23-2 LED METER BOARD 23 REV F ©1994,©1999 Mackie Designs Inc. All rights reserved
©1994,©1999 Mackie Designs Inc. All rights reserved LED METER BOARD 23 REV F 23-3
MB•32/MB•24/MB•16/MB•E MB•16 Meter Bridge MB•24 Meter Bridge
E
A SHORT TEST-DRIVE Bridge activity on Channel 1. Whoop with TROUBLESHOOTING

8•BUS METER BRIDGES The point of this exercise is to make sure that
all the Meter Bridge channels (and all the LED's
on each channel) work properly. Better now
5.
unbridled joy.
Repeat steps 3 and 4 for each channel of
the Console. You'll probably want to stop
If a group of LED ladders doesn't respond,
there's a good chance that the corresponding
ribbon cable isn't pushed in all the way. Make
MB•32 than later. whooping after about the sixth or seventh sure that it is firmly plugged in.
4. Locate and channel.
identify the hard- 1. Power up your 8•Bus Console. Confirm If nothing responds, contact your dealer or
ware that came with that the following are alight: 6. Assign the last channel you tested to the Mackie Designs Tech Support immediately.
your Meter Bridge: MB•E Meter Bridge MB•32 Meter Bridge A. The console's power LED; L/R MIX. Turn up the L/R MIX fader.
MB•24
Engage the L/R switch in the MONITOR
■ a. Two (2) slotted screws; B. The meter bridge's VU meters (unless
section of the Console. METER BRIDGE OPERATION
■ b. Two (2) collar pieces (Note you're installing an MB•E); and
7. Confirm meter activity on both the Meter Your meter bridge's ballistics and general
that there is a small C. Either the TAPE or CHANNEL LED on
MB•16 Bridge VU meters and the console's L/R behavior is the same as the submaster LED
pin protruding from the Meter Bridge.
MAIN LED meters. Pan the channel left and ladders on the Master section of the Console.
the bottom of each If nothing lights up, F right to confirm that all meters understand For the excruciating details, read the section on
collar piece); turn the power off this sort of thing. METERING on page 11 of your 8•Bus manual.
MB•E ■ c. Two (2) Allen head screws; immediately and re-
When TAPE is selected on the Meter Bridge,
■ d. Two (2) lockwashers; check your connec-
with the console's mounting sockets. The 32•8 has five; the 24•8 has the channel meters will show you what is com-
■ e. One (1) allen wrench. tions. If all is aglow,
holes. four; the 16•8 and MB•E each have three ing out of your multitrack into your tape returns
5. Remove the plastic caps that cover proceed to the next
7. Hand-insert one collar (see epic MondoDrawing E at the top). — before any signal manipulation in the chan-
the Meter Bridge mounting holes step.
piece into each side, with 14. Remove the rubber plugs and feed them to nel (but after the +4/–10 switching circuit). The
Congratulations on adding a Meter on each side of the Console (Draw- 2. If the Meter channel meters should behave just like your
the “teeth” pointing out the afore-mentioned boa constrictor.
Bridge to your Mackie Designs 8•Bus ing A). Feed them to your boa. Bridge TAPE multitrack's meters.
(C). Occasionally, the end 13. Making sure that the plug and socket are
Console. Installation is very straightfor- LED is on,
caps of the Console will try aligned, firmly insert each ribbon cable into When CHANNEL is selected, the meters
ward and should take just a few minutes. A press the
its corresponding socket in the Console (F). “see” the channel's direct output post-EQ,
The only reason we've included so many SOURCE
Take care to make sure that the cable is not post-fader and post-mute. This is particularly
step-by-step drawings is because our art button below
C twisted 180˚ (sounds insulting to caution handy for live mixing.
department wanted something to do on it once to switch to G
a rainy day1. you against something like this, but we've CHANNEL. If the The VU meters on the MB•32, MB•24 and
pin down MB•16 “look” at the same signals as the
seen it done.) Unless your fingers are CHANNEL LED is
INSTALLATION INSTRUCTIONS microminiature, you'll probably need to use console's L/R LED meters. You will notice that
on, switch it to
1. Locate the warranty card and fill it to interfere with the eraser end of a pencil to press down on the VU meters and LED meters will not always
6. Align the Meter Bridge TAPE and back to
out. If you bought your Meter this step. Don't get the plug and make sure that it is fully agree with each other. THIS IS NORMAL. The
with the Console (B) and lower it CHANNEL, to
Bridge at the same time you pur- upset. Simply loosen the CONSOLE end seated (G). LED meters read peak activity and will show
into place. Tilt the Meter Bridge confirm that
chased an 8•Bus series console, you cap screws, install the collar and then re- every dynamic nuance. The VU meters, de-
back until it is 16. Slide the new improved, slotted rubber the switch is
don't need to answer all the ques- tighten the screws. signed in the Early Bronze Age, are slower to
at rest against B plugs (that are pre-attached to the ribbon behaving.
tions on the card that came with the 8. Turn the collars by hand until you feel the cables) down until they fit snugly into the respond and therefore show an RMS or average
the Console 3. Send a signal
Meter Bridge. Just fill in the model pin seat itself (it will stop turning). rectangular Console holes (Drawing H). signal level. This will usually be several dB less
chassis (or into the main
number of the Meter Bridge, serial 9. Slide one lockwasher onto each allen-head than the peaks shown on the LED meter.
your tangle of 17. Adjust the Meter Bridge to the desired path of
number, purchase date and dealer, screw. Final suggestion: Turn your overhead lights
patchcords). angle and tighten the screws. Console Channel 1. The –20 LED above
and your name and address. 10. Secure the collars by inserting an Allen- way down so that your Mackie system will look
Make sure 18. Make yourself a sandwich. Wash hands the fader will let you know if you have done
2. Make sure that your 8•Bus Console that the meter head screw on each side (C). Take care not so. like the Death Star from Revenge of the Jedi.
before returning to work.
power supply is turned off. bridge's to cross-thread the screws or strip the 4. After making
3. Remove the Meter Bridge from its mounting screwheads. Tighten the Allen screws sure that the
plastic bag. Save the bag. It's handy securely. D
holes line up channel is
for wrapping boa constrictors or 11. Using a hefty screw driver, install a flush not muted,
moray eels before popping them in screw almost all the way into each side turn up the
your freezer. Also, save the box. (Drawing D at right). channel
12. Raise the Meter Bridge as far forward as it fader. Con-
1
And, since every day except four or five in August are will go. firm Meter
rainy up here in the Northwest Rainforest, they had time
to do quite a nice job.
. 13. On the Console, locate the rubber plugs
that cover the Meter Bridge ribbon cable
H

23-4 METER BRIDGES ©1994,©1999 Mackie Designs Inc. All rights reserved