anh kiem tra duong tu anten vao trung tan co thong mach ko?cap len may cap dong xem thu kim dong nhip ra sao?ap cap cho song thu co khong?trung tan con dung duoc ko?noi chung la benh nao cung vaychung ta nen di tu don don gian den phuc tap anh ah.(xin loi may dang dau ko duoc)