i have a realistic pro2023 scanner that lost frequency range 137-174 when lighting struck in the area.the unit still plays all the rest of frequency ranges and i can program frequency in the 137-174 but it will not stop on a active channel to listen to.i have a old handheld scanner i thank i can get parts, but i dont know which part to get to help me.please post any ideas to help me with this problem.also i did a system restore with no luck on back of unit.