Ive got a kenwood hi-fi

Question

Ive got a kenwood hi-fi and had it for approximately 15yrs. Its a system where each part is seperate, just recently my cd's have started to jump, ive tried cleaning discs to clean the laser but they do no good. Its a kenwood compact disc player DP-470. I would love to get it repaired as it is still a cracking hi-fi..hope you can help. cheers!!