Hello all, last weekend I did some footage of my Curch's event. It was nice and sunny, I looked at my camera and it looked filthy. had dust in crevices and the black parts looked dingy. What are good techniques to use? what kind of sprays or solvents? thank you very much

Check pages 66-67 of the manual.
Solvents can cause problems.
Keyboard vac an gentile application compressed air might remove some dust, but be careful of the heads and mechanism.

The XL1 is over 10 years old, and more than 7 years out of production, thus factory service is problematic.