Hi, I am looking to repair a Tek DPO7254C that fails SPC, but the diagnosis and everything else passes and works well. Tektronix and some third parties charge an arm and a leg to repair and I cannot afford that. From discussions online and with people who have repaired them, it seems like it is likely something with the acquisition board. I plan to open it soon and look for leaking capacitors or anything obvious but does anyone have experience with possibly these scopes and common failures? I see some videos with relay replacement on the TDS series but I'm not sure if that may also possibly be the issue for this oscope.