I recently pulled apart an Apple PSU and was going to start checking capacitors when I performed a self-test with my Blue ESR meter.
Instead of the correct .8.8 result I got an FA error.
The manual seems to suggest that a FA error would normally be accompanied by the meter "behaving strangely" and lists possible causes for some problems, but as far as I can see, the meter is still working just fine - or at least zeroing works, the calibration resistors measure correctly, there is no garbled display, the meter turns on and off correctly and the low battery warning feature operates.
Therefore, I am not really sure where to start, considering the only apparent fault is the FA error itself.
Trust me to get the weirdest problem!
Instead of the correct .8.8 result I got an FA error.
The manual seems to suggest that a FA error would normally be accompanied by the meter "behaving strangely" and lists possible causes for some problems, but as far as I can see, the meter is still working just fine - or at least zeroing works, the calibration resistors measure correctly, there is no garbled display, the meter turns on and off correctly and the low battery warning feature operates.
Therefore, I am not really sure where to start, considering the only apparent fault is the FA error itself.
Trust me to get the weirdest problem!
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