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KDC-W4031/W4031Y/W409/W409Y
KDC-W431GY/W4531/W4531Y/WF431A
How to enter the test mode
While simultaneously press PRESET "1" key and PRESET "3"
key, press "RESET" button.
How to release the test mode
Press "RESET" button. (The release cannot be achieved in
the conditions of POWER OFF and ACC OFF.)
Initial conditions of the test mode
• The source is "STANDBY".
• The displays all lit up.
• The volume is at –10dB (The display shows "30".)
• LOUD is "OFF".
• CRSC is "OFF".
• SYSTEM Q is "NATURAL".
• BEEP is sounded at all time with the key depressed for less
than 1 second.
Special displays when all indicator lights are lighted
When "PRESET" keys are pressed while all indicators for the
STANDBY sources are lighted, the following displays will ap-
pear.
PRESET • Version display (8 digits : month, date, hour, minute)
"1" key
(Display) : x x x x x x x x
PRESET • Serial number display (8 digits)
"2" key
(Display) : x x x x x x x x
PRESET • When pressed for less than 1 second : POWER ON
"3" key
time display (STANDBY source time is not counted.)
(Display) : PON x x x x x
* The display is cleared by pressing the key for more
than 2 seconds.
PRESET • When pressed for less than 1 second : CD operation
"4" key
time display
(Display) : PLY x x x x x
* The display is cleared by pressing the key for more
than 2 seconds.
10
TEST MODE
MAX 60,000 (hours)
MAX 60,000 (hours)
PRESET • When pressed for less than 1 second : CD EJECT
"5" key
number display
(Display) : EJC x x x x x
* The display is cleared by pressing the key for more
than 2 seconds.
PRESET • When pressed for less than 1 second : Panel open/
"6" key
close number display
(Display) : PNL x x x x x
* The display is cleared by pressing the key for more
than 2 seconds.
"FM"
• ROM CORRECTION version display
key
(Display)
Effective : ROM _ Rxxx (x : number)
Not effective (When not able to read) : ROM _ R – – –
Not effective (When version is different) : ROM _ R
"AM"
• IC10 adjustment status (Refer to "ADJUSTMENT" on
key
the following page.)
(Display)
Adjustment complete : E2P _ OK _ _
Adjustment not completed : E2P _ ER _ _
Communication error : I2C _ ER _ _
* When other than "E2P _ OK _ _" , Pin No. 30 will
become "H".
"
"
• Mechanism error detection status
• Communication error → Error No. 1 → Error No. 2 →
key
Error No. 3 → Communication error (Error No. 1 is the
most recent error.)
(Display)
Communication OK : I2C _ OK _ _
Communication error : I2C _ NG _ _
Not detected : ERR _ n – – – (n : 1~3)
Detected : ERR _ n-
* The display is cleared by pressing the key for more
than 2 seconds.
MAX 60,000 (times)
MAX 600,000 (times)
(
: error code)
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