Can anyone do this?

[2point0T]

I have an old school projection tv, about 60''. It's roughly 15-20 years old, but not bad for having it given to me. My problem is that the (light) guns are not properly aligned so there is red and green drop shadow in the upper left corner.

I am looking for someone that knows how to fix this, I think if you know what you are doing it's very easy. I would be willing to exchange something. Its a Pioneer, I believe the guns are accessible through the front behind the speaker covers.

If anyone can do this please let me know! TIA