60 inch LG Plasma, did have to push the power button 5 to 7 times to get the TV to power up. Now it will not come on at all

The tv before,the tv power supply board already have problems and was slowly dying,that why it require u to pushes 5 to 7 times for the tv power supply board to be able to sustance and hold power for the tv.Now the tv power supply board it is alot weaker or already dead.That why the tv dose not power on anymore.The tv power supply board that the board where the tv power a/c cord plug into it.Try website like Ebay.com to buy a whole new refurbish tv power supply board for the replacement.

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It sounds like the power supply capacitors have failed and need to be replaced. This is the most likely cause for the problem you describe. Its a failry easy DIY fix and you can get capacitor kits from sites such as www.TvRepairKits.com You can also follow this fixya page for tips on how to repair this yourself. http://www.fixya.com/support/r9434516-lcd_plasma_power_supply_repair