https://blog.model-train-help.com/2022/11/led-light-circuit.html?utm_source=rss&utm_medium=rss&utm_campaign=led-light-circuit Model railroads and model trains Wed, 07 Dec 2022 02:18:26 +0000 hourly 1 https://wordpress.org/?v=6.9.4 https://blog.model-train-help.com/2022/11/led-light-circuit.html#comment-60643 Wed, 07 Dec 2022 02:18:26 +0000 http://blog.model-train-help.com/?p=6580#comment-60643 If your system is 3V, the LEDs are all wired in parallel. The symptoms you describe suggest that the 2nd LED has either become disconnected from one of its feed wires, or failed. (Disconnected is most likely, so apply 3V to the ends of the LED itself to test it.) 
 
 Possibly the wire on one side of the circuit has an intermittent fault, test for this by wiggling various bits to see if it makes a difference.

]]> https://blog.model-train-help.com/2022/11/led-light-circuit.html#comment-60568 Wed, 30 Nov 2022 11:54:03 +0000 http://blog.model-train-help.com/?p=6580#comment-60568 Hi Bob
How did you wire the leds, in Parallel or series, it make a difference as to how they work.

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