Hello,
I just finished assembling my scope. It ran fine for about an hour. Now when I power it up, it works well for a few minutes but then the begins to flicker and then goes black. I measuring voltage across pins 16 and 18, I get a stable 2.8v while the screen works properly. Once the flickering stops, the voltage drops in sync with the flicker and the drops to 0 when the screen goes black. I reflowed all the connections but that didn't help.
Any ideas?
Thanks!