jackwg

Hey guys, this is my first post, any help would be appreciated

I drive a 92 240 sx le coupe that has heads up display. I bought it about six months ago. For the first five months the heads up speedometer only worked once. But in the last month it has all of a sudden started to work pretty much everyday, usually in the morning when I first start it up. The problem is that it never last more than a few minutes--or for a few seconds for that matter--it just fades away. (everything else works fine, including the odometer and the tac).

Does anyone know what's happening? How I could get it to work constantly? At first I thought it might be a loose connection, but I don't think so now. Could it be a fuse? Or something else?

A answer or a link would greatly appreciated

Thanks,

Jack