Alpine DVI-9990 User Guide
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[ Changing the password ]
1) Press ENTER after selecting “Change Password” in step 2 of “Setting of the
rating level (Parental Lock)”.
2) Enter a 4 digit password by pressing 0 to 9.
3) Press ENTER to confirm the entered password.
4) When setting is complete, press and hold MENU/SETUP for at least 3
seconds. The mode returns to normal mode.
Supplement
See page 80-81 for supplementary information.