Acer PD126D series - Manual (Page 33)

... English 31
If administrator forgot “Administrator Password”, do
the following to retrieve the “Administrator Password”:
1. Press “Menu” for more than 4 seconds when any
of “Enter Password” or “Enter Administrator
Password” dialogue is currently displayed.
2. Write down the “Unlock ID” and contact with
Acer service center. They will give you new
Administrator Password according to the Unlock ID.
3. Once the new “Administrator Password”
retrieved from Acer has been logged into the
projector, old “Administrator Password” will be
replaced by the new password.
Reset
Press the and then choose “Yes” to return the display parameters
on all menus to the factory default settings.
Management
(Computer / Video
Mode)
User Controls