Einleitung
Due to the number of questions that sound something like, "My Wii is not displaying any video" on the iFixit forum, I've decided to create this guide. I am compiling a step-by-step guide of things to try should something like this happen to you. None of the repair methods here are guaranteed, but they will hopefully give you some things to try before you go and take the entire console apart, and, with any luck, they might help. If any of these steps fix your Wii, please leave a comment on whichever step did the trick! That would help me to order them so that more commonly used solutions would appear at the top of the list. The catch? Please mark this guide as "Done" if any of the solutions work (sorry, I had to add that)! (Disclaimer: The main photo is just an example of what a failure of this nature could look like. Not all issues of this nature will result in the exact outcome depicted.)
Was du brauchst
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If your Wii isn't outputting any video, the last thing you'd want to do is take it apart when the problem turns out to be that you forgot to turn on your TV! Therefore, to rule that out, I suggest that you ensure that your console and your TV are both powered on, and your TV is set to the correct source.
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If you have a Wii Mini (Red and black, toploading), check to be sure that you're using an A/V cable (Red, white, and yellow plugs) and not a Component cable (Two red plugs, one white plug, one green plug, and one blue plug). The Wii Mini is incompatible with component cables. Skip this step if you aren't fixing a Wii Mini.
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Yeah, yeah, we've all seen it before. You turn off your Wii and your Samsung TV (If you don't have a Samsung TV, just go with it) displays, "Check cable connections". But this time, you actually might need to do that! It's at least worth trying before you resort to dismantling your Wii, anyway. Be sure all the cables are in and reconnect if needed.
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This may sound crazy, but it actually helps sometimes, especially if your TV's ports are... finicky. Twist 'em a little... pull 'em out... put 'em back in... whatever you think falls under "Fiddling"! Okay, maybe not ANYTHING. Just do whatever sort of thing you think would help make a better connection. Don't hold back (too much)!
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If you happen to have an extra A/V cable handy, test it to rule out the current cable as a problem. If that doesn't work, see if you can get your hands on another one, just to be certain it's not the cable.
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For people who happen to have more than one compatible TV, you may find it useful to know whether or not it's the TV by testing your Wii on a different one. This is optional, but it's recommended if you have more than one TV and are unsure if your TV is causing the problem.
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Okay... some of you are, perhaps, wondering how one might do this while unable to see anything on the screen. It's simple, really: By holding DOWN on the Wii remote's D-pad (while holding the Wii remote in vertical position) and RESET on the console while it's booting up, the resolution setting is reset to 480i. See? Simple!
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And how do you do that? Well, you unplug the console from the AC adapter, then wait a few seconds (as a rule of thumb, I would say that anywhere from 15 seconds to a minute should do the trick), then plug it back in.
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If your TV has a settings menu, check it! Be sure there aren't any odd zoom or pan settings active, and if they are, turn them off. Some TVs also allow you to reset settings to factory defaults, so try this if all else fails.
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Still no video? There may be a problem with the console itself. You may wish to re-test some of the above methods before coming to this conclusion. Otherwise, it is likely a hardware issue and your solution will be found elsewhere.
