Author Topic: sencore sc61  (Read 309 times)

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Offline pete g

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sencore sc61
« on: October 22, 2018, 12:21:30 pm »
hi all, I have a sencore scope that has started acting up. when I hook up a probe to either chanel a or b I get a 160mvpp signal at 2.4khz. have tried different probes, even just a straight wire, with the same results.this occurs with no connection to anything. can someone help. have checked filters in power supply. are o.k. I have another scope to use for troubleshooting. it seems like the probe wire is acting like an antenna. help plz.
 

Offline mzacharias

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Re: sencore sc61
« Reply #1 on: October 24, 2018, 09:52:07 pm »
Does it behave this way using a probe (direct or x10) on a circuit under test? Or connecting to the probe compensation tab on the front?

Open probes ARE like an antenna - they pick up all sorts of crap.
 

Offline pete g

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Re: sencore sc61
« Reply #2 on: October 25, 2018, 04:01:42 am »
hi, and thanks for replying. I think I fixed it. I changed every electrolytic I could see. it seems to be working. I really like this scope, and hope its fixed.
 

Offline mzacharias

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Re: sencore sc61
« Reply #3 on: October 25, 2018, 04:50:58 am »
Glad that worked out for you. I grind my teeth when I hear "re-capping" so damn much, but sometimes it does work.
 

Offline pete g

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Re: sencore sc61
« Reply #4 on: October 25, 2018, 05:04:33 am »
yes, well I figured on a 30 year old scope, it probably was the thing to do. time will tell. thanks.
 


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