4.3 Diode pin check-up
1) Pick up 3 diodes
2) Change meter to ohm-mode put red test lead on the side that has no mark.
3) Measure resistance and write down the value
4) Swap measuring polarity and write down the value
5) Write down where are the anode and cathode (note as mark side / non-marked side)
6) Write down that the diode is normal or abnormal.
7) Discuss the reason of the errors.
Note: Be careful for digit of significance.