LEDs not lighting or turning off after a few seconds

If the LEDs don't turn on or turn off quickly after turning on your unit, something is tripping the fuses F1 and F2. Please check the following:

1. Check for solder bridges causing a short between two pads
2. Check the orientation of all ICs and transistors
3. Remove all the socketed ICs and power the unit up.
   1. If the LEDs work now, replace the ICs one-by-one, powering down every time before placing a new IC.
   2. If one or more of the ICs are bad, please contact us for a replaceent