Niles Audio SI-275 Car Amplifier User Manual


 
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 out-
let. Master power switch must be on.
The loudspeakers are wired out of phase. Reverse
the connections at the back of one speaker.
TROUBLESHOOTING GUIDE