Introduction
If the LED lights do not function after troubleshooting, you might need to change the LED Board. For this replacement you need a Phillips #2 screw driver and a metal spudger.
Tools
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            Use a metal spudger to remove the top cover. 
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            Use a Phillips #2 screwdriver to remove three 17 mm screws. 
 
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            Grip larger cable connected to LED board and pull volume wheel until both are disconnected from the cable. 
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            Pull lightly on the LED board to disconnect the smaller LED board cable from volume wheel. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.