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If you press the OSD button and menu shows , please use [ Reset ] function to return to
the initial value of screen
Press and hold the "MENU" key and select MENU > System Setup > Restore factory
mode (Reset)> select "Yes"
Enter safe mode to adjust resolution or refresh rate which the other LCD can support
No display after turning monitor ON (not boot, black screen & no power lights)
Make sure the power button on the front panel is normal for boot
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