irs21844s help..

[Perry Babin]

Now post one with the other probe alone. Then one with both probes on that point.

 

[mixalos spl]

two pictures...

 

[Perry Babin]

Two problems, maybe 3.

You're using a 1x probe and a 10x probe. Do you have 2 switchable probes?

Your second channel doesn't appear to be inverting.

You are still displaying 2 traces.

 

[mixalos spl]

now i invert the second channel...both probes are 1x...

 

[Perry Babin]

One probe is switchable Most of these come in pairs. Do you have the second one?

 

[mixalos spl]

oh my god....my knowlege is so poor

 

[Perry Babin]

The green trace may be what you want. Can you turn the others off, leaving the green?

 

[mixalos spl]

and this is green trace...

 

[Perry Babin]

What about with the other probe?

 

[mixalos spl]

it has the same wave....no need to upload photo ....

 

[Perry Babin]

Are you sure? Was the 'ground' in the same place? It should have moved to the top.

 

[mixalos spl]

one more lose....i didnt noticed the ground...it moved to top

 

[Perry Babin]

And if you put both probes on the drain? (photo if it's not too much trouble)

 

[mixalos spl]

this one?sorry im a little tired and litlle mess..

 

[mixalos spl]

photo

 

[Perry Babin]

No. There is no lone green trace.

 

[mixalos spl]

aaaahhh forget it...i can not find green line or 2 probes together....i dont know whats wrong....is there another way with one probe one channel?

 

[Perry Babin]

It's sad that this scope is making things so difficult. This is SO useful and with most scopes, it takes only a couple of settings to be changed. After it's set up, you can use one probe as normal and when you need to go to differential, you simply have to use the second probe. It makes it SO much easier to see drive signals.

 

[mixalos spl]

im sure that i lose it somehow......its not the scope i think.....i have one more analog....a hameg one.....maybe we can try to this one?

 

[mixalos spl]

monday again hopefully....see you