my ds500x has always fogged a little but now when i go out i can hardly see the soundings as i cant see past the condensation on the screen which covers 95%. pull it to pieces 2 days ago all seems sweet. got me buggered as i had same trouble with my new furuno and taylor marine said it cant be helped as heat exchange with all the components cause the condensation.
maybe i need to drill pinhole at top of unit to expell the heat as the small hole in the back obviously doesnt do its job and having no windsceen doesnt help ,
does any one else have this problem???????????????????????????????