lee_retzkin
New Member
I recently acquired a tek 2235 oscilloscope that shows only a flat line. Both channels give a good flat line trace. Focus and intensity are good. Both traces can be moved up and down/side to side. I've set the unit up per the manual's instructions. All of the low voltages are there. The output of the vertical amp has the correct voltages. Any ideas on where to look next would be welcome. I know I can fix this, I'm just inexperienced with scopes. Thanks.
Lee
Lee