SUB-WOOFER IS NOT WORKING, REST TWO SPEAKER IS WORKING. I AM NOT ABLE TO ACCESS THE CIRCUITS EVEN AFTER UNSCREWING ALL THE SCREW OF SUB-WOOFER, HOW TO OPEN THE WOODEN BOX AS THE PRINTED CKT BOARD IS NOT COMING OUT OF BOX.
KINDLY LET ME KNOW IF THERE'S ANY SOLUTION. THANK YOU