sysco Posted January 31, 2020 Share Posted January 31, 2020 i'm testing a set of strings 2811 and what is happening holding the probe on the 12volt side both endsi get a beep now everything is ok for that side but i made a mistake left the probe on the 12volt side and tested the ground got a beep i'm i right in saying that the string is no good Link to comment Share on other sites More sharing options...
TheDucks Posted January 31, 2020 Share Posted January 31, 2020 48 minutes ago, sysco said: i'm testing a set of strings 2811 and what is happening holding the probe on the 12volt side both endsi get a beep now everything is ok for that side but i made a mistake left the probe on the 12volt side and tested the ground got a beep i'm i right in saying that the string is no good Switch the probe positions (polarity) LEDs are diodes. the control chio is transistors. They have polarity. The Beep (is usually a diode tester) Front/back tests are common Diode tests. Link to comment Share on other sites More sharing options...
sysco Posted January 31, 2020 Author Share Posted January 31, 2020 thank you for your reply Link to comment Share on other sites More sharing options...
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