So I bought my first arcade. I’m not knowledgeable at all about these things. The screen fires up but only lights up white. There is also no sound. I have opened the coin box and attempted to enter test mode but nothing happens. I changed all fuses and also tried adjusting all picture nobs that I can find from using the owners manual. Any help would be greatly appreciated and dumb it down for me if possible. I’m far from educated on this kind of stuff! Thanks in advance.

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