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Video Blog 104 - 3rd HP 34401A 6.5 digit Multimeter Repair

DISCLAIMER: This video is educational only, so if you decide to do the same yourself then you are on your own, I can't be held responsible for any problems/issues/damage/injury that may occur if you decide to follow this blog and try it yourself.


This is the 3rd 34401A I have attempted repair on, this one reports an error 621 on TEST so lets see if it can be fixed.

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