Niles Audio SYSTEMS INTEGRATION AMPLIFIER SI-275 - Manual (Page 18)

17
TROUBLESHOOTING GUIDE (continued)
SYMPTOM
Hum from the speakers
Amp will not turn on
Bass sound is weak and
the stereo image is
"phasey" or "blurry"
sounding in one room
POSSIBLE CAUSES AND TEST PROCEDURE
Check for faulty cables, faulty source material, an
ungrounded phono system or a defective component.
AC power cord must be plugged into a working outlet.
Master power switch must be on.
The loudspeakers are wired out of phase. Reverse
the connections at the back of one speaker.
TROUBLESHOOTING GUIDE