My wife's radio, specifically the fm reception, has been working sporatically the last week or so. It will work fine one minute, but the next all you get is static and nothing will come in. If you give it a good whack, it will work fine again. I suspect it must be a short in one of the hundreds of soldered joints in the radio circuitboard. Has anyone else had this problem and if so, is their anything that can be done to fix it short of having circuitboard resoldered. Thanks in advance.