Please read R_G_B
This thread is hard work and I don't know why.
You'll see the images in the OP have been looked at 100's of times and this thread is getting plenty of views for the short time it's been active.
Your replies have been....well what can I say.....short.
For those following along at home or for any that stumble upon this thread in the future it's going to be hard work too as finer detail for fault analysis is required.
I hate seeing good equipment broken and while I may not have all the skills to offer the fixes I'll do my best to the point when another member with better skills picks up the challenge but we need more to go on.
So please give us more to go on, use the Quote button so your reply is in context and doesn't have us guessing.
You might be frustrated by your broken scope, I'm just as much by lack of detail in replies.
Re-read the thread and edit for those following and those that find the thread in the future.
BTW my signature has nothing to do with my willingness to help or suggested replacement preference, it is required by the moderators.