I have very limited electric knowledge, so I appreciate your patience! I was tasked with fixing a shuffleboard scoreboard. Picture attached. The original ic was damaged and not replaceable from the company. So, I used an arduino and lots of wires and reused the board/lights to 'remake' the board. I worked with a guy that did the programming. They're 7 segment numbers. Each number shares common positive. The guy I worked with had me solder resistors in before each number, brown black black purple gold. The problem, the lights are much to dim. With out the resistor the lights are plenty bright. Not knowing much about electronics though, with no resistor will that burn out the lights is my question and if so what should I use as a resistor to make sure that the lights are bright enough?
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