MSD Total Loss LED not working

hello,,,, I have an MSD total Loss for 1000 cc Scream engine. I just both the ski, trying to find if the timing is correct?
I have sparks from sparks plugs... Unfortunately when I am trying to set up my static timing the LED light seems to be damage ..........
I followed all the instructions from MSD,,,,, Switch 4 on/off....... nothing
I want to set up my static timing at 31,,,,,,
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