Are the mixer, equalizers, amplifiers, and all other equipment
plugged in and turned on?
Are the microphones and instruments connected to the mixer
Check all mixer controls for proper settings: channel trim
pot, pad switch, line/mike switch, sub-group select, left/right
pan, channel on/mute, channel fader, sub-group on/mute, sub group
left/right pan, sub-group fader, main on/mute, main
Are both ends of the snake connected correctly?
Is the mixer output connected to the equalizer
Is the equalizer output connected to the power amplifier
Is the power amplifier output connected to the
Is the power amplifier gain control set
Are the pilot lights lit on all equipment?
Are there any blow fuses?
When you speak into a mike, does it indicate on the mixer's
meter? Can it be heard on the headphones when the PFL switch is
Does anything work as a starting point?
Can the trouble be isolated to one microphone, instrument, or
Try replacing microphone, cross-connect, or speaker cables (in
case there is a broken wire)