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TROUBLESHOOTING
Symptom
No Sound
Speaker is making a
rattling noise
No sound from one
coil
Speaker is distorting
at high volume levels
Check Point
Is the amplifier power LED
illuminated?
Is the amplifier overload LED
illuminated?
Check impedance with Ohm
meter
Check that the speaker moves
freely
Check that speaker is secured
properly and tightened with
screws
Check enclosure construction
Check speaker polarity
Check speaker leads
Check speaker load impedance
capabilities for the amplifier
Verify that amplifier and/or
crossover settings are correct
Remedy
1. Check fuses in amplifier
2. Check turn-on lead
3. Check signal lead
4. Check gain control
5. Check source unit volume
6. Clean contacts on fuse holders
Check speaker for short or
amplifier for overheating
If no reading, replace speaker
If speaker won't move, replace
speaker
Tighten mounting screws
Check that the enclosure is
debris free
Correct polarity
1. Inspect for short circuits
2. Check for open connections
Reverse left and right speaker
leads to determine if it is
occurring before the speaker
Confirm that the speaker load
impedance recommendations
are followed. Check the wiring
configuration of the speaker. (To
verify proper load impedance,
use an OHM meter to measure
the total load for each channel of
the amplifier.
Select low-pass setting
28
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