Troubleshooting - JL Audio MicroSub+ Owner's Manual

TROUBLESHOOTING

Problem
How to properly set
input sensitivity
Faulty fuse
Poor connection
Amplifier doesn't
integrity
turn on
Insufficient "Remote"
input
Intermittent output,
Poor connection
fluctuates when I tap
integrity
on it or hit a bump
Output shuts off after Overheating condition
a while (Thermal Protection)
MicroSub+ / PowerWedge+ with DCD™ Amplifier Technology
Possible Cause
Please refer to Appendix A to set the input sensitivity for
maximum, low-distortion output.
Remove fuse and check with continuity meter. Replace if
necessary.
Check "+12 VDC", "GND", and "Remote" leads for pinched
wires; ensure tight connections.
Make sure there is a sufficient +12V supply at the "Remote"
connection; if not, a relay may be required.
Make sure wiring insulation has been properly stripped back
at connection points for good contact area.
Make sure the signal input connections (low-level or high-
level) are making good contact.
Make sure enclosure is positioned allowing the amplifier
adequate space for ventilation and heat dissipation.
Solution
7