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DMX-512 LED Controller with LED Display

Step 7Plug It All In & Test

First Look the whole circuit over, check for solder bridges, loose wires, or wrong connections.

Insert ICs and Test:

The end with the dot on the IC lines up with the notch on the end of each socket.
Line up the pins and press in firmly.
Check it over
Once the chips are inserted and its looked over, go ahead and apply power. Remember if no 7805 has been installed 5 volt is the maximum input voltage, if the 7805 was installed, minimum 7 volts are required, up to 32 volts, which could be further increased with a different 7805 and heat sink.
The display should light up and respond to button commands.
Once the display has been tested and working, it is a good idea to hot glue the ribbon cable to the PCBs, otherwise the wires could break or come undone while handling.
Optional: connect to a DMX signal, it should switch from stand-alone to DMX mode, and display the address.