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View Full Version : Need some DIY Bridgelux Aquastyle Troubleshooting Help

jctse
08/20/2012, 11:27 AM
If you have experience with diy LED's can you give me some advice on how to find a probable short?

40 Leds on 2 drivers (LPF-60D-48 one for the blue and the other for the white), each controlling 2 strings of 10. 4 fuses.

When I try it the 20 white work fine but one of the blue strings of 10 does not light.

Before turning it on (and after) I tested from wire to wire each Led-they still appear to be good. The tester is basically 2 AA batteries. I have an older multimeter that can test Amps, Volts, and contunuity but not many other bells and whistles. I switched the fuses around as well thinking it might be a bad fuse.

I have a picture of the led and heatsink, multimeter, and tester.

With what I have can I test for a short or do I need a better multimeter?

Many thanks....

http://i46.*******.com/2ic9kc5.jpg
http://i47.*******.com/2h56tky.jpg
http://i50.*******.com/2lnhm9y.jpg
http://i48.*******.com/23uo0ll.jpg
cfredallen
08/20/2012, 12:13 PM
set to continuity test and test from ground to each pad on each led. Also see if you can find a meter with diode test and make sure the leds are all soldered in correct polarity. Have heard of leds be soldered to the star incorrectly and +- are backward. Diode test will catch that.
MADtanks
08/20/2012, 01:14 PM
set to continuity test and test from ground to each pad on each led. Also see if you can find a meter with diode test and make sure the leds are all soldered in correct polarity. Have heard of leds be soldered to the star incorrectly and +- are backward. Diode test will catch that.

This....

Start there and report back, for further trouble shooting.
jctse
08/21/2012, 09:54 AM
Got it. The fuse holder they sent me was bad. One end wasn't passing current- but oddly enough they sent me an extra one to begin with (go figure). Threw me for a loop cause I suspected the fuse early on and tested for that. Well atleast I learned that my multimeter has a diode/continuity mode(s) that will light up an led. I was testing from led to led like you wouldn't believe.

Thanks All...
MADtanks
08/21/2012, 09:56 AM
Awesome man, glad you got it working and was not a fault with wiring :). now post up some pics over the tank! :)
jctse
08/22/2012, 12:29 PM
It's a little "blah" right now. I'll update when there's something to update :-)
Thanks again.

http://i49.*******.com/j5gfp4.jpg
MADtanks
08/22/2012, 09:27 PM
nice man, in time all looks nice! :) no worries.