[Test-Equipment] Scope help needed!!!!

[J. Forster]

> John:
>
> Thanks for the reply!
>
>
> Where on the screen is the vertical line? Left? Center? Right?
> **I can move it from extreme left to extreme right and up and down.
>
> What are the readouts doing? Are they displaying as lines of text or just
> short vertical lines at the top and bottom of the screen?
> **Readouts are ok.

The mainframe is likely OK then.

> **The problem seems to be that I can not "expand" the vertical line
> horizontally; Like on a TV when you have a straight horizontal line, there
> is no vertical deflection. I think my scope has no horizontal deflection.

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More likely, the sweep is not triggered. Is there a green "Triggered" LED
on the panel? Is that on?

Are you in AUTO sweep mode? Check you are not in "Single Sweep" or a
"Delayed" mode.

Another thing you can do is put your 7A18 into the H slot and see if you
can get H deflection with that.

-John

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