20
TROUBLESHOOTING
Symptom Check Point Remedy
No Soud Is the amplier power LED
illuminated?
1. Check fuses in amplier
2. Check turn-on lead
3. Check signal lead
4. Check gain control
5. Check source unit volume
6. Clean contacts on fuse holders
Is the amplier overload LED
illuminated?
Check speaker for short or
amplier for overheating
Check impedance with Ohm
meter
If no reading, replace speaker
Check that the speaker moves
freely
If speaker won’t move, replace
speaker
Speaker is making a
rattling noise
Check that speaker is secured
properly and tightened with
screws
Tighten mounting screws
Check enclosure construction Check that the enclosure is
debris free
Check speaker polarity Correct polarity
No sound from one
coil
Check speaker leads 1. Inspect for short circuits
2. Check for open connections
Reverse left and right speaker
leads to determine if it is
occuring before the speaker
Speaker is distorting
at high volume levels
Check speaker load impedance
capabilities for the amplier
Conrm that the speaker load
impedance recommendations
are followed. Check the wiring
conguration of the speaker. (To
verify proper load impedance,
use an OHM meter to measure
the total load for each channel of
the amplier.
Verify that amplier and/or
crossover settings are correct
Select low-pass setting