Troubleshooting - Infinity COMPOSITIONS P-FR Owner's Manual

SYMPTOM
Bass sounds
distorted
Distortion with
volume control
near minimum
Distortion on music
peaks or sound
effects (e.g., pops
or rapping noise)
Buzz, hum, or
crackle when
connecting wires
Buzz or hum when
amplifier is on
No sound from
subwoofer
TROUBLESHOOTING
CAUSE
Bass reinforcement
in room
Subwoofer amplifier
has reached maximum
output
Receiver tone controls
are set too high
Receiver clips when
using high-level inputs
Defective receiver or
preamplifier; shorted
speaker wires
Dynamic soundtrack
(e.g., explosions)
causes subwoofer
to "bottom" out
Tone controls
are set too high
Connecting wires
with power on causes
transient signal spikes
Grounding problem
or ground loop
Power switch is set
to OFF
Blown fuse
SOLUTION
Move speakers away
from walls
Slide BASS switch to 2
or 3 to reduce bass
(see page 11)
Turn down volume
control on receiver
or preamplifier
Set bass and treble flat;
use controls sparingly
Lower receiver level
Repair defective
receiver or
preamplifier
Turn down master
volume control to
lower overall range
Set bass and treble flat;
use controls sparingly
Connect wires only
when audio system
power is off
Slide GROUND switch
to 2 or 3 (see page 11)
Slide POWER switch to
ON (see page 11)
Check or replace fuse
(see page 11)