my ipod touch backlight went out can i fix iy my self?

I don't know. Can you?

Try the following to rule out a software problem:

- A reset. Nothing is lost

Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at

least ten seconds, until the Apple logo appears.

- Restore from backup

- Restore to factory settings/new iPod.

If you still have the problem that indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order

Apple will exchange your iPod for a refurbished for this price:

Apple - Support - iPod - Repair pricing

A third-party place like the following may be less expensive. Google for more places.

iPhone Repair, Service & Parts: iPod Touch, iPad, MacBook Pro Screens

To fix it yourself :

iPod Touch Repair – iFixit