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1.检查屏幕右下方蓝灯是否是常亮状态
2.按屏幕右下方的Menu键，看到屏幕设置的窗口后，用Menu右边的方向键选择到Input选项，并确认是选择了HDMI
3.若上述情况都正常，请通过方向键进入Other选项，用Menu键进去并选择Reset，即可重置屏幕的参数，过10-15秒，若屏幕没有硬件问题，就会正常显示
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