ARRAY 1500 - JBL Audio Service Manual (repair manual). Page 8

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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
1500 
Array 
Subwoofer 
           
 
 
 
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