Hi all, I am new to this forum, so please redirect me if I post this in the wrong group.
I have a lecroy waverunner 6202 4 channel scope. All inputs work correctly when I attach a blockwave through a BNC cable and they work fine at 50 Ohms, at 1 MOhm DC as wel as AC settings of input coupling.
However, if I attach the signal via the original lecroy probes, only channel 2 has a defect that I do not understand at all. The probes are 1x 500MHz types I think.
In that case, channel 2 always sees a flatliner at 0 V. I confirmed that the probes are OK by swapping between channels and between different probes of the same type.
So: all probes and channels are OK, except channel 2 which works well with BNC cable but flatliner with any of my probes,
How can this be? the connection is merely a BNC, isn't it, how can it not see the probe signal that is clearly visible on the other channels? Any help much appreciated.
Kees