Re: A 2465 teaser...
The 2465 is not a digital scope. It is analog, but hastoggle quoted messageShow quoted text
a digital microprocessor controlling all of the circuitry.
On the 2465, hybrids handle much of the circuitry. In the
case of the readout, the channel selecting switch is a
hybrid that has 5 identical input channels. 1-4 are CH1
through CH4, CH5 is uniquely for the display input.
The CH5 display is always selected, but CH1 through CH4 can
be individually selected by VS1-VS4.
The Channel Switch hybrid is just a multiplexor. The blanking
signals don't go to the Channel Switch hybrid at all.
So, if it is blanking timing, it should affect all channels
equally, but it doesn't. I can see the ugly stuff in the
CH1 and CH2 slots, directly at the output of the Channel Switch.
The truth is out there...
Harvey White madyn@... [TekScopes] wrote:
On Fri, 10 Nov 2017 01:37:50 -0500, you wrote: