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54512b scope fails vertical self cal

Question asked by rumreich on Jan 16, 2009
Latest reply on Jan 17, 2009 by rumreich
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I just replaced the lithium battery in my 54512b and am now trying to recal.  The scope passes all the self tests and seems to work fine, but when I run the vertical self cal, I get the error messages:

FAILED A/D CAL
FAILED GAIN CAL

I get the same errors for each input channel.  The scope is in the unprotected mode for this procedure.

Thanks for any help ar advice.  
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