MACKIE M1400/M1400i - Manual (Page 27)

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• Is the SHORT LED lit? If so, you’ve got
a dead short somewhere in your speaker
setup, or the total impedance of the load is
too low. Turn the amp off and rectify that
right away.
Something’s missing in the mid and high
frequencies!
• If you’re using horns with compression
drivers, please read
CONSTANT
DIRECTIVITY .
It hurts when I touch my arm, or my leg, or
even my head!
• You have a broken finger.
Bad sound!
• Is it loud and distorted? Turn down the signal
coming from the mixer or signal source.
• Is the input connector plugged completely
into the jack? Check the speaker connec-
tions and verify that all connections are
tight and that there are no stray strands of
wire shorting across the speaker terminals.
• If possible, listen to the signal source with
headphones plugged into the console. If it
sounds bad there, the problem’s not in the
amplifier.
Noise/Hum
• Check the signal cable between the mixer
and the amplifier. Make sure all connections
are good and sound.
• Make sure the signal cable is not routed
near AC cables, power transformers, or
other EMI-inducing device.
• Is there a light dimmer or other SCR-based
device on the same AC circuit as the
monitor? Use an AC line filter or plug the
amplifier into a different AC circuit.
• If possible, listen to the signal source with
headphones plugged into the console. If it
sounds noisy there, the problem’s not in the
amplifier.
For additional up-to-date information
please visit our website at www.mackie.com .
REPAIR
Service for the M•1400/M•1400i amplifiers
purchased in the USA is available only from
one of our authorized domestic service sta-
tions. It is also available at the factory, located
in sunny Woodinville, Washington. (Service for
Mackie amplifiers living outside the United
States can be obtained through local dealers or
distributors.) If your amplifier needs service,
and it lives in the United States, 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 amplifier’s serial
number ready.
You must have an RA
number before you can obtain service at
the factory or an authorized service center.
3. Keep this owner’s manual. We don’t need it
to repair the amplifier.
4. Pack the amplifier in its original package,
including endcaps and box. This is very
important. When you call for the RA
number, please let Tech Support know if
you need new packaging.
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 amplifier 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 amplifier within five
business days. Ask Tech Support for
current turn-around times when you call
for your RA number. We normally send
everything back prepaid using UPS
ORANGE (three-day air). However, if you
rush your amplifier to us by Next Day Air,
we’ll ship it back to you UPS RED (Next
Day Air). This paragraph does not necessarily
apply to non-warranty service.