Sony CFD-S50 boombox CD player not work

The CD player on my Sony CFD-S50 will only play a little over a minute, then it starts flashing and starting over on its own.  I tried the troubleshooting on the Sony website, but it keeps doing this.  Is it simply broken already?  It's only 4 years old.  The cassette player still works on it, but can the CD player part be repaired?  Is it even worth repairing?  Thank you.