How do I repair a CD player?

Pioneer Corporation (パイオニア株式会社, Paionia Kabushiki-gaisha?) (TYO: 6773 ) is a Japanese multinational corporation that specializes in digital entertainment products, based in Tokyo, Japan. The company was founded in 1938 in Tokyo as a radio and speaker repair shop. Today, Pioneer is recognized as a leader in technology advancements in the consumer electronics industry.