CD players have skipping issues. It's part of their normal operation!
Start from sticking vaccum cleaner tube into the CD-tray hole.
Than you can use lens-cleaning CD with brush.
If two above wouldn't help, you'll need to access your transport mechanizm and clean lens manually with damp cloth and cleaning solution or alcohol
If apperently you find that mechanizm is clean, you should contact manufacturer(hopefully the unit's still on warranty) WTF. CD-players can skip because of DAC failures as well(but substantially more rare).
Start from sticking vaccum cleaner tube into the CD-tray hole.
Than you can use lens-cleaning CD with brush.
If two above wouldn't help, you'll need to access your transport mechanizm and clean lens manually with damp cloth and cleaning solution or alcohol
If apperently you find that mechanizm is clean, you should contact manufacturer(hopefully the unit's still on warranty) WTF. CD-players can skip because of DAC failures as well(but substantially more rare).