Hi I have been having issues with my pro 96. It first started with not receiving signal. I took my scanner apart and seen that the antenna came unsoldered so I resolder it back together. I still didn't get signal so I started messing with the red screw. turned it on and it started receiving again but only white noise. After a while the screw cracked and broke. I believe it's the TPS screw. Is there a place I can buy a new screw? or is that screw not important? any help is appreciated.