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APPENDICES •
TROUBLESHOOTING
17
Troubleshooting
Problem
No sound
Low 70V audio
Low 8Ω audio
8Ω speaker low frequency audio is
low or absent
8Ω speaker audio is excessively
distorted at high volume
Possible Causes
Amp not connected to AC power
Power switch is OFF
Gain control(s) adjusted too low
Channel input(s) incorrectly wired
Speaker(s) not connected
Mismatch between channel input and output connections
Circuit breaker for power switch is tripped (turn the switch off, then
on again to reset circuit breaker)
Molex plug not connected to either the 8Ω or 70V receptacle of a
given channel.
Molex plug is in the 8Ω receptacle rather than the 70V receptacle.
Molex plug is in the 70V receptacle rather than the 8Ω receptacle.
Molex plug is in the 70V receptacle rather than the 8Ω receptacle.
Molex plug is in the 70V receptacle rather than the 8Ω receptacle.
Molex plugs are in both the 70V and 8Ω receptacles of a given
channel.
