Analog cable tuner

I have a 50" zenith plasma.There was hdmi satallite hooked up and my cable was hooked up to the coaxle. There is no box for the cable. I was disconecting my satallite and had to rewire my cable box outside so the cable got disconnected and then reconnected. When i reconnected the cable my wife was inside and said she smelt like something was burrning. my cable hasn't worked since. just a few fuzzy cable channels. All the dtv channels come in fine it just the cable.the cable company came out and said the cable is fine. I had two other tv s hooked up at the same time and they are both fine along with my computer. The cable guy suggested it was the cable analog transmiter that went out. Doe's that sound right and how much is it gonna cost.