Dim pixels when off

[2kvfr800]

Hey guys and gals,  on my mega tree I have pixels that either flash, or are steady dim blue.. 

What could cause this problem? 

ws2811 square pixels used less than one season, powered from both ends, power supplies have been checked and output is 12v..

thanks in advance 
 

[TheDucks]

Make sure all Grounds (negative) are tied together (very critical that all nodes have the same ground.

If you power inject from DIFFERENT supplies BREAK ONLY the 12V line where they meet. 2 supplies can fight

You can safely set (well in the tolerance range)the voltage to 12.6  (5% high out of 10% limit)

 

[2kvfr800]

On 12/4/2020 at 3:22 PM, TheDucks said:

Make sure all Grounds (negative) are tied together (very critical that all nodes have the same ground.

If you power inject from DIFFERENT supplies BREAK ONLY the 12V line where they meet. 2 supplies can fight

You can safely set (well in the tolerance range)the voltage to 12.6  (5% high out of 10% limit)

 

Thanks for the reply, 

all grounds are together & Injected power is from the same power supply.  1 PS runs every 4 strings.

 

[TheDucks]

3 hours ago, 2kvfr800 said:

Thanks for the reply, 

all grounds are together & Injected power is from the same power supply.  1 PS runs every 4 strings.

 

No idea, then.