Electronics > Repair

Rigol DS1102E not triggering correctly.

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CharlieD:
Hello everyone.

I have a Rigol DS1102E wich I haven't use in a couple of months, I was working on a device and when measured the clock signal, te signal looks untriggered, so I put the probe in the compensation pin, the 1khz signal should look like stable and steady, but I looks untriggered.(See gif and pic below)





If anyone can help with this, I have no idea how the trigger section of this or any scope works, so any help explaining this is welcome, and a hint where or what section of the PCB to look .

Some other details:

-The measurements works fine.
-The knob varies the level and I put it between the signal in edge mode, but within ot not the signal there is no difference.

If any other detail is important please post it and I answer it. Thanks.

BlownUpCapacitor:
You can try factory resetting the scope. That would eliminate the potential factor of incorrect settings.

wasedadoc:
Try pushing the 'Auto' button.

Xena E:
Period jitter on the clock pulse  that you're trying to look at? Try a lower frequency timebase setting and look for repetitive patterns.

(When the scope grows up it wants to be an HP 😁)

X

wasedadoc:

--- Quote from: Xena E on October 05, 2024, 04:17:19 am ---Period jitter on the clock pulse  that you're trying to look at? Try a lower frequency timebase setting and look for repetitive patterns.

(When the scope grows up it wants to be an HP 😁)

X

--- End quote ---
AIUI the photos are of the waveform from the scope's probe cal output. Typically those are stable 1kHz.

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