SoundCraft Spirit FX16, User Manual

Page: 9 / 24

Troubleshooting
Note: It is normal for the right-hand side of the mixer to become warm in
normal use..
No Power
l Is the mains supply present? Check that mains voltage
selection is correct for your country.
l Is the power lead firmly connected?
l Check the mains fusing
l If you have checked all the points above and the power
indicator is still not illuminated, consult your Spirit dealer
Condenser Mic Not Working
l Is the 48V turned on?
l Is the mic plugged into the Mic input?
l Is the mic cable a balanced 3-wire type?
Meters not showing any signal
l Has the input gain been set correctly? (see above.)
l Is the source connected to the appropriate input socket for
the level of signal?
l Do you have something connected on the Inserts, and is
that external device switched on?
l Are the Master faders set at max., are input faders set high
enough and is the channel routed to the output being
monitored?
l Is the MUTE switch released on the relevant channels?
l Is the appropriate monitor select switch pressed?
l Is there a SOLO or AFL pressed on another channel?
No Mix output
l Check that the Mix Master Fader is up.
l Do you have something connected on the Mix Inserts, and
is that external device switched on?
No Monitor output
l Is the Monitor control set high enough?
l Is the appropriate monitor select switch pressed?
Headphones Distorting
l Are the headphones less than 200 W impedance?
l Is the Phones level set too high?
Lexicon Effects Level too high
l Ensure that the Input to the Lexicon processor is setup
correctly. If the input is too high the signal will distort. If
the level is too low the level of noise may be excessive.
Use the Lex FX AFL button to monitor the input level to
the Lexicon processor in the same way as you set up input
channel gain levels (see ‘Initial Set Up’), adjusting the LEX
FX level until the meters are just reaching the amber
sections.
l Once the Lexicon input level has been set correctly the
LEXICON RET controls can be used to set the required
effects level.
Setting Up & Troubleshooting
Initial Set Up
Once you have connected up your system (see the sections on
connection and wiring earlier in this manual for guidance) you are ready
to set initial positions for the controls on your mixer.
The front panel drawing on page 20 shows typical initial control
positions which may serve as a useful guide to setting up the
mixer for the first time.
Set up individual input channels as follows:
l Connect your sources (microphone, keyboard etc.) to the required
inputs and release the MUTE switches. Note: Phantom powered
mics should be connected before the 48V is switched on.
l Set Master faders at 0, input faders at 0, route the channels to MIX
and set power amplifier level to suit the application. Select MIX as
the monitor source on the Master section.
l Provide a typical performance level signal and press the SOLO
button on the first channel, monitoring the level on the bargraph
meters (make sure that PFL Mode is selected on the Master
section).
l Adjust the input gain until the meter display is in the amber section,
with occasional peaks to the first red LED at a typical maximum
source level. This allows sufficient headroom to accommodate
peaks and establishes the maximum level for normal operation (but
see note below).
l Release the SOLO button.
l Repeat this procedure on other channels as required.
l Listen carefully for the characteristic sound of ‘feedback’. If you
cannot achieve satisfactory input level setting without feedback,
check microphone and speaker placement and repeat the exercise.
If feedback persists, it may be necessary to use a Graphic Equaliser
to reduce the system response at particular resonant frequencies.
Note: The initial settings should only be regarded as a starting point for your
mix. It is important to remember that many factors affect the sound during
a live performance, for instance the channel EQ settings or even the size of
the audience!
You are now ready to start building the mix and this should be done
progressively, listening carefully for each component in the mix and
watching the meters for any hint of overload. If this occurs, back off the
appropriate Channel Fader slightly until the level is out of the red
segments, or adjust the Mix Master Faders. This procedure will ensure
that the mixer is set up correctly, with adequate headroom. If more
amplification is needed, adjust the power amplifier level controls.
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