20 | English
Menu system
Function of the KDC-W4531
In Standby mode
Security Code
Because authorization by the Security Code is
required when it’s removed from the vehicle,
personalizing this unit is by using the Security
Code is a help in preventing theft.
• When the Security Code function is activated, it can’t be
released.
Note, your Security Code is the 4 digit number entered in
your "Car Audio Passport" in this package.
1 Enter Standby
Press the [SRC] button.
Select the "STANDBY" display.
2 Enter Menu mode
Press the [MENU] button for at least 1 second.
When "MENU" is displayed, "SECURITY" is
displayed.
3 Enter Security Code mode
Press the Control knob for at least 2 seconds.
When "ENTER" is displayed, "CODE" is displayed.
4 Select the digits to enter
Push the Control knob to [4] or [¢].
5 Select the Security Code numbers
Push the Control knob to [FM] or [AM].
6 Repeat steps 4 and 5, and complete the
Security Code.
7 Confirm the Security Code
Press the Control knob for at least 3 seconds.
When "RE-ENTER" is displayed, "CODE" is
displayed.
8 Do the step 4 through 7 step operation, and
reenter the security code.
"APPROVED" is displayed.
The Security Code function activates.
• If you enter a Code different from your Security Code,
you have to start over from step 4.

Press the Reset button and when it’s removed

from the battery power source

1 Turn the power ON.
2 Do the step 4 through 7 step operation, and
reenter the security code.
"APPROVED" is displayed.
The unit can be used.
• If an incorrect code is input, " WAITING" is displayed,
and the input prohibited time shown below is
generated.
After the input prohibited time lapses, "CODE" is
displayed, and input can be done.
Number of times the
incorrect code was input
Input prohibited time
1—
2 5 minutes
3 1 hour
4 24 hours
In Standby mode
Touch Sensor Tone
Setting the operation check sound (beep sound)
ON/OFF.
Display Setting
"BEEP ON" Beep is heard.
"BEEP OFF" Beep canceled.
In Standby mode
Manual Clock Adjustment
• This adjustment can be done when the <Synchronize
Clock> (page 21) is set as OFF (KDC-W4531/W4031/
W409/3031A/3031G/309A/309G).
1 Select Clock Adjustment mode
Push the Control knob to [FM] or [AM].
Select the "CLK ADJ" display.
2 Enter Clock Adjust mode
Press the Control knob for at least 2 seconds.
The clock display blinks.
3 Adjust the hours
Push the Control knob to [FM] or [AM].
Adjust the minutes
Push the Control knob to [4] or [¢].
4 Exit Clock adjustment mode
Press the Control knob.