tell me more about the table.For instance,where are the ball returns,are there 2 returns or one.If there is only one ball return than your table has a belly.The belly is probably stapled or tacked to the table.Remove the belly to access the ball drop.Then,use a hammer and wood chisel to dis-lodge the braces.If there is no belly,then see if there is a panel under the ball drops.Remove the panels and see if you can dis-lodge the braces.Take care not to bend the belly too much as it will brake.Re-install the belly/or panels