On Sun, 30 Sep 2018 14:29:06 -0700, you wrote:
I have a Tek 7104 1GHz scope. There is a slide switch inside on the right side on the A13 Logic circuit board and I believe it is labeled S4488. There is no writing next to it, and the manual does not show its purpose. Does anyone know what this switch is used for?
S4488 XY Z axis selector
Switch position closest to board edge: XY timebase controlled Z axis
position furthest from board edge, XY DC controlled Z axis.
Timebase controlled seems to allow the timebase to blank/unblank the
beam, and DC controlled allows the external Z axis input to operate.
Likely, unless you want an external input, you'd likely want the XY
timebase controlled input.
Harvey
