Niles SI-1230 Series 2 Installation Manual page 28

TROUBLE-ShOOTING GUIdE
Symptom
Sound is distorted
on one or all of the
channels at normal
volumes
normal volume cannot
be reached
bass sound is weak
and the stereo image is
"phasey" sounding in
one room
a speaker connected
to a bridged pair of
amplifier channels
sounds weak
28
possible Causes and Test procedure
busmatrix™ DiP switches are not in the correct positions.
check your configuration worksheet and verify all settings.
one of the internal amplifier fuses is blown. (return the amplifier to your dealer for service).
check that the bridging switch is "off". if two adjacent channels are connected normally but
the bridging switch is set to the "bridged" position, the two speakers will play out of phase
with each other.
The loudspeakers are wired out of phase. reverse the connections at the back of one speaker.
check that the bridging switch is "on".
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