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Hello Sorry you're having problems. The Input 2 is greyed out because older Panasonic sets require you to "Label" the Input before you can use it in the TV MENU. In order to find you specific instructions on how to do this, I need the FULL model number off of the back of the TV (the number you posted is not related to model in any way). A Panasonic model number will be something like: TC-P50P2U or similar. Please get that and I can then pull up instructions for you.
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