Hi everyone. Hopefully someone can solve this problem. I have 2 mermaids gold machines. One has a short top, the other has a taller top and more glass. When I turn the shorter one on, I immediately hear the BONG, followed by a reel one tilt error. I switched reels 1&2, but the error stayed at reel 1. Fine. My bigger machine worked perfectly, the went to turn it on, and it's dead. There's 5 LED lights on the board, but only the 2 end ones come on. Thinking I have a power problem, I removed the power supply (A in pictures) from the shorter machine, and put it into the bigger machine. Powered up, all the LED lights came on th board, no BONG, and the hopper was spinning. I put the original power supply back into the big machine (power supply B) . It's a bit confusing. In short, power supply A works in both machines and all LEDs are lit. The short machine bongs and has a tilt reel 1, and the big machine doesn't bong, and shoots out quarters. Not sure what to try. I also noticed that the 2 power supplies have different boards. Is this important? I don't know anything about power supplies