Ignition Control Module problem

Thanks guys, I sanded real good under where the screws go and I got a new ballast resistor today and when I left the parts store battery was dead! Luckily I had a jumper pack in the trunk because it had been slowly taking a little longer to start and seemed like the battery was getting weak. Once I got it fired up my ALT gauge was showing discharge so I went home and dug out another alternator and its still showing discharge on the gauge. What else could it be causing the discharge?