02-24-2010, 10:43 PM
Gah!
I can't seem to get anything to work lately. I was thinking tonight I would finish this off. But, I'm stumped again.
I cannot get the LED's to light. To summarize I've wired up a 700 resistor to the long lead on a 3mm LED. I tried swapping the contacts thinking I got the polarity mixed up, nothing. Putting the resistor on the other lead, I tried a lower resistor, like 465 and nadda. I tried the contacts at both ends. I even just touched the contacts of a unmolested LED to the contacts. Nothing. I double checked, triple checked and grrrrrrrrrrrrrr....
Thing is, I touch a 12v bulb to the contacts on the decoder and it lights. However, it appears as if the voltage getting to it is pretty weak. Not bright like I've seen from a 12 volt bulb usually. What is going on here? I have a feeling that the decoder is not sending enough juice to the lights. Why I don't know. It has to be something. I've scoured manuals, on-line and bah, not much going on.
Now I'm seriously stumped. I might swing by my LHS this Saturday, see if they have any ideas...I dunno. In the meantime if anyone has any suggestions I'd like to hear it.
I can't seem to get anything to work lately. I was thinking tonight I would finish this off. But, I'm stumped again.
I cannot get the LED's to light. To summarize I've wired up a 700 resistor to the long lead on a 3mm LED. I tried swapping the contacts thinking I got the polarity mixed up, nothing. Putting the resistor on the other lead, I tried a lower resistor, like 465 and nadda. I tried the contacts at both ends. I even just touched the contacts of a unmolested LED to the contacts. Nothing. I double checked, triple checked and grrrrrrrrrrrrrr....
Thing is, I touch a 12v bulb to the contacts on the decoder and it lights. However, it appears as if the voltage getting to it is pretty weak. Not bright like I've seen from a 12 volt bulb usually. What is going on here? I have a feeling that the decoder is not sending enough juice to the lights. Why I don't know. It has to be something. I've scoured manuals, on-line and bah, not much going on.
Now I'm seriously stumped. I might swing by my LHS this Saturday, see if they have any ideas...I dunno. In the meantime if anyone has any suggestions I'd like to hear it.