dlh3 explain this "Screen is dark is corner and sides" a bit further, I am not sure what you can see. Sometimes it helps if you post some images of what your screen looks like. Use this guide iFixitでの質問に画像を追加する方法 to add images right now it could be a bad bulb, bad ballast or some bad caps on the power board. Any of that can be repaired.
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dlh3 explain this "Screen is dark is corner and sides" a bit further, I am not sure what you can see. Sometimes it helps if you post some images of what your screen looks like. Use this guide iFixitでの質問に画像を追加する方法 to add images right now it could be a bad bulb, bad ballast or some bad caps on the power board. Any of that can be repaired.
oldturkey03 さんによる