Basic Troubleshooting - JBL Project Array 1500 Service Manual

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1500 Array Subwoofer

BASIC TROUBLESHOOTING

If there is low (or no) bass output
Make sure the connections to the left and right "Speaker
Inputs" have the correct polarity (+ and –).
Make sure the subwoofer is plugged into an active electrical
outlet.
Make sure the Power Switch is on.
In Dolby Digital or DTS modes, make sure your
receiver/processor is configured so that the subwoofer
and LFE output are enabled.
Adjust the Subwoofer Level Control
7

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