Electronics > Repair
BK Precision 2120 trace issues
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bdunham7:

--- Quote from: vexatag on March 18, 2021, 10:49:27 pm ---DS212 arrived, it has built-in signal generation (square, sine, saw, from 10hz to 1mhz) and proper 10x attenuation support. I'm guessing I should hook the output channel of the 212 to the external trigger of the 2120 (dangerous potential for typos here) using a 10khz square wave, then connect the ground of channel A to the output channel ground and probe the points? Additionally, should testing be done with the 2120 on or off? It's been long enough that I don't remember how I was testing it.

--- End quote ---

Yes, that sounds correct, 2120 on, but be careful and use 10X all the time.  Also, I don't think you need to worry about connecting grounds since all the BNC shells on the 2120 are grounded.
vexatag:
In that case I should connect the 212 input probe to the chassis, yeah?
bdunham7:
I'm not familiar with the DS212.   I had a quick look and I'm not sure how it connects.  Can you use your BNC scope probes with it?  Does it need/have an adapter for those?  Or are those connectors on the DS212 actually BNC somehow?
vexatag:
The connectors aren't BNC, but they're easily adapted. I bought one adapter (should have bought two) and it came with one compatible lead.
bdunham7:

--- Quote from: vexatag on March 18, 2021, 11:44:58 pm ---The connectors aren't BNC, but they're easily adapted. I bought one adapter (should have bought two) and it came with one compatible lead.

--- End quote ---

OK, then you should be good to go.  The signal to the EXT trigger can be the compatible lead and you can probe with the BNC adapted lead set to 10X.  Just don't go near the high voltage like the other guy...
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