Studio Color 575 'T OUT' error

I have a couple of fixtures that are displaying T OUT. I've looked it up and the manual suggests replacing the lamp or the ballast could be bad. I replaced the lamp, it gives the same error. So I'm looking at replacing the ballast. I've had this same error code a few years ago, sent it to a guy that does local repair, and he replaced the ballast as well, that is my reason for going this direction. So, I'm wanting to make this repair myself, and I've wondering the best way to go about it. I see on the parts list, there is an 'ignitor board' - is this the part I would replace? Any suggestions toward the repair are welcome and appreciated.
Thanks!
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