swordz60
Newbie level 6
Hello,
I am working on a APC UPS faulty board and have run into a problem: 1N5819 diodes read 0.02V drop across them when tested using multimeter (the diodes are soldered in place). That is the same even if i switch polarities of the multimeter. When using continuity check it reads 20 ohm and beeps. :-| Are they bad or could something in the board be affecting the reading? Other diodes (like P600M, MUR4100) check out ok (voltage drop as excpected or shorted at both ends if bad). Thank you for answers.
I am working on a APC UPS faulty board and have run into a problem: 1N5819 diodes read 0.02V drop across them when tested using multimeter (the diodes are soldered in place). That is the same even if i switch polarities of the multimeter. When using continuity check it reads 20 ohm and beeps. :-| Are they bad or could something in the board be affecting the reading? Other diodes (like P600M, MUR4100) check out ok (voltage drop as excpected or shorted at both ends if bad). Thank you for answers.
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