Problem with MK194 kit

I built a new FM-radio with the Velleman MK194N kit using a MM100 FM-module. It worked well, but unfortunately the antenna got in touch with the positive pole of the power supply and since then only a noise can be heard, however the loudness of the noise can be set with the appropriate keys. Do I need to replace the MM100 module or even the the IC PIC181503-IP or can the problem be fixed in an other way? Is there no capacitator between the antenna entrance and the antenna?