welp - smoked one of the 6. Anyone have a good how-to on replacing just one emitter on a 3 up board?
I was wondering how programing worked if you over due the amps.
Sucks it toasted one. Hows the driver otherwise? Im itching to try one out
I was using a Hbflex - but the TaskLED user interface is the same across most models that have the bike programming.
Simple to use, once you've done it a time or 3. Make sure you have the manual printed out and the options you want to program highlighted - a cheatsheet might help.
For short periods - a couple of seconds, a 1.5A led can take 3A. Unfortunately I had a brain fart, and set the driver to 3A drive current, thinking I was working with XM-L's. XP-G2's are rated at 1.5A max. I set it to high and was evaluating something else when I noticed smoke. then the array flickered, and came back then went out. Woops.
I found the dead LED and bypassed that particular 3-up board so I could keep playing with it. The driver seems to operate as it did before.
Easiest way to get an emitter off without professional gear, is to heat the whole board (on a stove or with a heat gun) up until the solder just starts to melt. take it off the heat and quickly slide (flick!) the dead LED off before it cools. Then place a new LED on and reheat until it just starts to move. Take off the heat and let it cool. You may not even need extra solder paste if there's still some solder left on the board. If you don't have paste, then a tiny blob of solder will work. Add flux if you can and keep the blob flat so that you can put the new LED in place.
Yes you're reflowing the other LEDs each time, but if you're quick and gentle, it won't hurt them (much).
Or you can use a heat gun from the top side and use aluminium foil to keep the heat away from the good two.