Sony Boom Box With CD Player & Cassette Recorder,CFD-S01CD Radio/Cassette/CD Boombox "tape won play" Questions

...won't play CD This Koss CD/Tape/radio no longer plays the CD, but sometimes the CD spindle will spin. I am guessing the lazer lens is worn out. Can this be replaced at home? Are such parts ...

...tape that eventually would time out and reset the command. If it won't do fast transport motions that eliminates the capstan/pinch roller. If it CAN FF and REW then the capstan, pinch roller, ...