That is alright Ernie, we'll forgive you for posting this one question before asking the client about the contrast wheel.




But I do have something to add to it though. I notice that with my tsu2000 there are times where the batteries gets a little warm after a charge. (which I charge every 4 to 6 weeks for 30 minutes or so. I haven't seen a "low bat" in a long time) Therefor effect the contrast of the display. But not only do the heat from the batteries effect the display, also the heat from your hands.