HP 3456A Repair

[@cerglabs3646]

Great video on a great meter! I have one with the same error on my bench. Keep up the good work!

[@josevaldes5002]

Thanks! Same issue with pins not making contact...! Had error -3 ..Works great now..

[@mri6913]

The problem is with the + 33 to 48 volt power supply being to low in voltage. Mine was 24 volts. I replaced C8 100uf 50 volt cap. This corrected the low voltage that was causing a -400000 test error. Now the meter works perfectly.

[@ovalwingnut]

👍😁 Thank you. ✔Subscribed

[@thxepsilon8292]

Oh no...you were so busy listening to cool jazz tunes that you neglected to follow the warnings on the inside cover, exposing the board to solaronite! The machine is useless now, might as well send it to me for proper disposal.

[@nse_labs]

Ha! Turns out solaronite actually improves the accuracy of the unit. I guess HP didn't want you to know that, hence the warnings.

[@ksbs2036]

A friend just gave me one of these meters. I hope it is an easy fix like yours. Thanks for the video