CF V7.5 Wiring Check

[Forgetful Jedi Knight]

So I wired everything up just like the diagram, and it works! Only problem was, the blue and green LEDs popped after a few seconds. Took the LED module out and tested it by briefly touching a spare battery pack to the LEDs. Unfortunately, only the red is still working.
Should I up the resistors on the negatives of the blue and green dies? Pretty sure I did the math correctly so I'm not sure what else to try.

You didn't have resistors on them to start with??

[ColdVizjerei]

I did; I started with 0.47Ohm 0.5Watt resistors on the negatives of the blue and green dies...which should be enough if I calculated correctly

[Forgetful Jedi Knight]

I did; I started with 0.47Ohm 0.5Watt resistors on the negatives of the blue and green dies...which should be enough if I calculated correctly

Those would be correct - if you are doing 3.7V. Which battery are you using??

[ColdVizjerei]

Yup, I'm using a 3.7V battery

[ColdVizjerei]

Looking at page 39 of the CFv7.5 manual, it says: "If the current involved in the additional dice of the blade LED is above 350 mA, external power (2 - 4 W) resistor will be needed, just like when powering a stunt off a battery pack with no electronics"

Does this mean that I'll be needing a resistor on each of those dies with 2-4Watts? Since the ones I used before were only 0.5Watts, is that what caused them to pop/die?

[Forgetful Jedi Knight]

Looking at page 39 of the CFv7.5 manual, it says: "If the current involved in the additional dice of the blade LED is above 350 mA, external power (2 - 4 W) resistor will be needed, just like when powering a stunt off a battery pack with no electronics"

Does this mean that I'll be needing a resistor on each of those dies with 2-4Watts? Since the ones I used before were only 0.5Watts, is that what caused them to pop/die?

No, that passage assumes you are using 7.4V (which would require resistors that size). I'm a little surprised, Tri-Crees are usually pretty robust. The only way i managed to pop one was an accident with my benchtop power unit when I was doing some testing.

[ColdVizjerei]

oh whoops, I thought it was applicable since it was under the psuedo color mixing part, & pseudo color mixing is usually done on a single cell. My bad.

In that case, would you happen to have any other suggestions? The only thing I can think of trying is higher wattage and/or higher ohm resistors when I wire it up again.

[Forgetful Jedi Knight]

Well, I would use say 1 Ohm, 2W resistors to be safe. But your existing LEDs are probably fried.

[ColdVizjerei]

Yeahhh, unfortunately those LEDs are dead. Ordered another R/G/rB Tri Cree so I'll try using 1Ohm 2Watts resistors on those when it comes in.
Thanks for your input FJK!