Hello Everyone,
new to the forum but excited to be here.
I recently purchase a Tektronix 465 oscilloscope, the price was right and it was in pretty good looking shape. when I got it home though an plugged it in, channel 2 started to give me some issues. Channel 1 is all fine and dandy but channel 2 gives me the behavior shown in the video below (its short but it gets the point across).
I have already spent an hour or two google-ing the issue. I started with "oscilloscope channel skipping" and didnt see anything similar to my results. I tried "oscilloscope channel doubling" and "oscilloscope channel flashing" also to little effect. Ive tried specifying the make / model as well to see if any other users with this machine have had similar issues and havent seen anything too promising.
I have not yet torn the machine down and given it a good cleaning (I know this is always the first step), but I got it monday night and didnt have a chance to open it yesterday or today, i probably wont really get to open and clean it really good until this weekend.
I wanted to post here and see if anyone has seen similar behavior from a machine. At this point the only thing I have on the docket to try is giving it a really good cleaning to see if its just a bad contact somewhere, but im not sure if that is really the problem. Ive never fixed an oscilloscope before but im no stranger to electrical projects. Please forgive the vimeo link, i was unable to attatch my video directly to this message, it was too big.
Link to video of my issue:
Please forgive also the stupid video name, i forgot to name it when I uploaded it.
Thank you all for the advice in advance.