Pioneer PureVision PDP-507XG - Manual (Page 39)

Useful adjustment settings 09
39
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English
We suggest you write down your password so you don't forget it.
If you forget the password
When the message "Please Input Your Password" is displayed,
press the
ENTER button on the remote control unit and hold it
down for 3 seconds or longer.
The password reverts to "1234".
PDP-507XG / PDP-427XG
Your password No.: