At first, that’s what I thought too.
But if the red light turns off when the saber is on, that would indicate that something else is going on. Could still be a blown FET though, because who knows exactly how a broken component will behave…
I had a board with one blown MOSFET and it would intermittently have the issue described above.
So, its likely a blown transistor and nothing I can do anything about software-wise?
The fact that the red is able to turn off gives some hope for a software solution. When the blade is powered down, the main chip just turns off the pins that control the FETs and rely on a series of 100k pulldown resistors to turn the transistor off. If something is wrong with the pulldown resistors, then something like this would occur. Fixing it would be as easy as keeping the outputs on at all time. The extra power draw is minimal, so it wouldn’t make much of a difference.
This is what removing the line I suggested would do.
You have to set up arduino properly to be able to program the board though. (Just modifying the config file on the SD card is not enough.) However, you probably want to do this anyways if you’re going to change the colors.
1 Like
I’m guessing there isn’t any kind of ‘Off Behavior’ programmed to the soundboard that would generate this red effect… does the red go away after x number of minutes?
Doubt anyone would willingly program that to the board (unless maybe a misunderstanding of what was requested 
) - but anyways yeah if that was the case then it would be a matter of reprogramming the soundboard and not the SD card (download the software, use the appropriate code generating platform etc.)
The answer is no, xrmy posted his config file earlier, and it has no “off” effects as far as I can tell.