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APPENDIX A: Service Info
Warranty Service
Details concerning Warranty Service are
spelled out in the Warranty Card included with
your mixer. If it’s missing, please let us or your
dealer know.
If you think your DFX Mixer has a problem,
please do everything you can to confirm it be-
fore calling for service. Doing so might save
you from the deprivation of your mixer and the
associated suffering.
These may sound obvious to you, but there’s
some things you can check. Read on.
Troubleshooting
Bad Channel
• Is the channel Fader turned up?
• Is the MUTE switch on?
• On mono channels, try unplugging any
INSERT devices.
• Try the same source signal in another
channel, set up exactly like the suspect
channel.
Bad Output
• Are the MAIN MIX faders turned up?
• If it’s one of the MAIN OUTs , try unplug-
ging all the others. For example, if it’s a
TRS MAIN OUT, unplug the associated XLR
outputs. If the problem goes away, it’s not
the mixer.
• If it’s a stereo pair, try switching them
around. For example, if a left output is
presumed dead, switch the left and right
cords, at the mixer end. If the left speaker
is still dead, it’s not the mixer.
Noise
• Turn the channel Faders , AUX RETURN
and AUX SEND controls down, one by one.
If the sound disappears, it’s either that
channel or whatever is plugged into it, so
unplug whatever that is.
Power
• Our favorite question: Is the POWER switch
on? Are all the lights out in your building?
• If the POWER LED is blinking, switch the
mixer off for a few seconds, and disconnect
all connections except the linecord. Switch
it back on, and if the LED continues to
blink, the mixer may need repair.
Repair
Service for DFX mixers sold in the USA is
available at our factory, located in sunny Wood-
inville, Washington. Service for Mackie mixers
living outside the United States can be obtained
through local dealers or distributors.
If your mixer needs service, follow these
instructions:
1. Review the preceding troubleshooting
suggestions. Please.
2. Call Tech Support at 1-800-258-6883, 8am
to 5pm PST, to explain the problem and
request an RA (Return Authorization)
number. Have your mixer’s serial number
ready. You must have an RA number before
you can obtain service at the factory.
3. Keep this owner’s manual. We don’t need it
to repair the mixer.
4. Pack the mixer in its original package. This
is very important. When you call for the
RA number, please let Tech Support know
if you need new packaging. Do not use
packing “peanuts” or any small packing
pieces which could get inside the mixer.
Always wrap it in a plastic bag. Mackie is
not responsible for any damage that
occurs due to non-factory packaging.
5. Include a legible note stating your name,
shipping address (no P.O. boxes), daytime
phone number, RA number, and a detailed
description of the problem, including how
we can duplicate it.
6. Write the RA number in
BIG PRINT on
top of the box.
7. Ship the mixer to us. We suggest insurance
for all forms of cartage. Ship to this address:
Mackie Designs
SERVICE DEPARTMENT
16140 Wood-Red Rd. NE, Ste 5
Woodinville, WA 98072
8. We’ll try to fix the mixer within three to five
business days. Ask Tech Support for the
latest turn-around times when you call for
your RA number. The mixer MUST be
packaged in its original packing box, and
must have the RA number on the box. Once
it’s repaired, we’ll ship it back the same way
in which it was received. This paragraph does
not necessarily apply to non-warranty repair.