Hi All,

I just picked up my first machine and it is operation thunder. My question is related to the “special” led board lights near the plunger and instructions on the lower playfield. I can’t seam to find any information on those lights. It appears that most system 3 games had them. My “p” is not lighting up but not sure if they light up in order as currently my s,e,c & I are lit. Can anyone help explain the premise behind these lights? Do they light up on all games left to right or random? If a letter is skipped is that normal? At certain times the other unlit letters will flash but the p doesn’t this my reasoning on it possibly being out. Is there any literature explaining these lights out there on any system 3’s? I have been striking out trying to google this topic, possibly I am just not using the correct terms...I am not sure

Thanks in advance

Thank you very much latenite04 & @ZEN. I appreciate the the help & feedback on my Operation: Thunder. I will take it back apart and look at it further. Any knowledge on the meaning behind the lights in how they relate to the game?