I own a J.C.Penney MCS

Question

I own a J.C.Penney MCS Series stereo system purchased in 1997. The internal antenna (I've been told) has gone out. I can now only receive the lower frequencies. Also the there is no LED on the station numbers, so difficult to tune (this went out during move). My question: is is fixable, can I replace only the tuner, or should I invest in a whole new system?Comments and/or recommendations would be welcomeA!Thanks,Carol