Hqi repair

[pirate]

So I bought a used hqi fixture and the 250 hqi does not light up. I opened it up to have a look and see if I could find something obviously wrong with it, but no luck.
So I opened the ballast box up and there is a M80 ballast( if I remember correctly) and cap inside of it, and in the fixture there is a ignitor. How do I go about trouble shooting it?
I it helps it's a coralife 250 hqi with with 2 65 watts pc and LEDs. I bought it and was gonna turn it into parts, but plans have changed.
Thanks