Advance OS250 oscilloscope X-shift issue
Hi,
I just picked up this "golden oldie".
The only thing not working well is the horizontal or X-shift. The trace cannot be shifted to the right enough to fill the right most 25% of the screen.
So my guess is that the Timebase / X amplifier circuit has an issue.
Only thing so far I checked are the 170V and the +- 20V rails, which are ok.
Any ideas anyone, please?