Hello All,

I am working on a TDS3044B that just has a white screen. Nothing else
comes up on the display. The controls seem to respond, that is, the
lights go on and off and there are relay clicks when I hit the Auto Set
button. The service manual is not much help. The manual also does not
tell you what the test points do. I don't want to buy a new display
unless necessary. Anybody got advice on where to start?

Tom Bryan