not easy to trouble shoot mechanical problem in cassette player.
you can find better and much condition player from thrift shop and pawnshop at considerably low low price.  go for made in japan...i got my pioneer and sansui player from thrift shop. you must clean/dust the inside.
bring your player to a repair shop.  you can still save it.
good luck,  dan
                
 dan
                
 December 2005