Panasonic PT-RZ770 Operating Instructions Manual page 148

4) Press asqw to select [OK], and press the <ENTER> button.
f To cancel, select [CANCEL].
Attention
f The initial password is "AAAA" as the factory default or when the [PROJECTOR SETUP] menu → [INITIALIZE] → [ALL USER DATA] is
executed.
f Change the password periodically that is hard to guess.
148 - ENGLISH
Chapter 4 Settings — [SECURITY] menu