Cisco D9887B - Unlocking

Chapter 4 Using the Front Panel to Configure the D9887B HDTV Modular Receiver
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2 To lock the front panel, use the Up and Down buttons to move the cursor to
"Lock Panel," and press the Enter button.
Unlocking
1 Press the Menu button.
2 Use the Up and Down buttons to move the cursor to "Unlock Panel," then press
the Enter button.
3 Use the Up and Down buttons to change the character and then the Left and
Right buttons to move to the next character.
4 Press the Enter button to unlock the front panel.