CTX S501A Troubleshoot Key Lock

So I can’t turn the monitor on or off. There is a Key Lock display when you plug the AC cord in. The internet is less than helpful. All I can find is some forum post reply that says push two buttons or hold down ESC and ENTER when powering the monitor on…yeah, THAT sounds like a good idea. So let’s push random combinations of buttons on the monitor until somethig happens…


Volume Up key + Auto key = Key Lock toggle on/off

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