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My DSO 2090 channel 1 DC coupling is not working

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Post time 2019-8-24 16:59:39 | Show all posts |Read mode
Dear Support, my DSO 2090 channel ! DC coupling is not working correctly, AC coupling and GRD seem to work ok, but not DC coupling. It's almost like it is still AC coupled. There is a slight offset present in AC coupled. Is there anything I can do, or do you do a repair service? See attcahed image. Channel 2 is working correctly.






Many Thanks

Steve

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Post time 2019-8-28 15:08:47 | Show all posts



Sir, if you can find the component, please replace it.
U8: Relay PL-4.5



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