KENWOOD KDC419
Service Manual

KDC-419/X459
TEST MODE
1. How to enter the test mode While holding the Preset 1 and Preset 3 keys, reset the unit. 2. How to exit from the test mode Reset the unit, ACC OFF, power OFF and Panel detached. (Note) The test mode cannot be terminated by momentary power down. 3. Initial status in the test mode � Sources : ALL OFF � Display : All segments are lit. � Volume : -10dB (displayed as "30") � Loudness : OFF � CRSC : OFF regardless of the presence of switching function. � SYSTEM Q : Flat � BEEP : When pressing any keys, the buzzer generates a beep at any time. 4. Special display in Tuner mode When any of the following messages is displayed in Tuner mode, the F/E may be abnormal. � "TNE2P NG" : The EEPROM is set to the default (unstable values) because the F/E was shipped without passing through the adjustment process, etc. � "TNCON NG" : Communication with the F/E is not possible. 5. Forced switching of K3I Each press of the Preset 6 key in Tuner mode should switch K3I from AUTO Forced Wide Forced Middle Forced Narrow AUTO. The initial status is AUTO and the display shows these modes as follows. � AUTO : FMA � Forced Wide : FMW � Forced Middle : FMM � Forced Narrow : FMN 6. Test mode specifications of the CD receiver � Forced ejection is inhibited in the reset start operation. When the unit is reset while a CD is loaded in it, the CD is not recognized by resetting. � Each press of the Track Up key jumps to the following track numbers: No. 9 No. 15 No. 10 No. 11 No. 12 No. 13 No. 14 No. 9 (The cycle restarts from here.) � Each press of the Track Down key jumps to the previous track number to the track being played. � When the number of total trucks of the MP3 disc is less than 9, 1st truck is played. 7. Audio-related specifications � A short press of the Q key initiates the audio adjustment mode. � Pressing the * key on the remote initiates the audio adjustment mode. � Fader is selected to the initial item. � Continuous holding of a remote control key is inhibited. � Bass, Middle and Treble are adjusted in 3 steps of Min / Center / Max with the Track Up/Down keys. � Balance is adjusted in 3 steps of Left Max / Center / Right Max with the Track Up/Down keys. � Fader is adjusted in 3 steps of Rear Max / Center / Front Max with the Track Up/Down keys. 8. Menu-related specifications � A short press of the MENU key initiates the Menu mode. � Pressing the DNPP/SBF key on the remote initiates the Menu mode. � Continuous holding of a remote control key is inhibited. 9. Backup current measurement When the unit is reset while ACC is OFF (i.e. by turning Backup ON), the MUTE terminal goes OFF in 2 seconds in place of 15 second. (The CD mechanism is not activated at this time.) 10. Special display when the display is all on Pressing the Preset keys while the power is ALL OFF displays the following information.
[PRESET 1] Version display (8 digits, Month/Day/Hour/Minute) (Display) xxxxxxxx : System microcomputer Short press : View power ON time. (The All OFF period is not counted.) [PRESET 3] Long press/hold : Clear power ON time at the power ON time displaying. (Display) PON xxxxx Max. 65535 (hours) Short press : Display CD operation time. Long press/hold : Clear CD operation time at the CD operation [PRESET 4] time displaying. (Display) CDT xxxxx Max. 65535 (hours) Short press : Display CD ejection count. Long press/hold : Clear CD ejection count at the CD ejection [PRESET 5] count displaying. (Display) EJC xxxxx Max. 65535 (times) Short press : Display Panel open/close count. Long press/hold : Clear Panel open/close count at the Panel [PRESET 6] open/close count. (Display) PC xxxxxx Max. 655350 (times)

� Security-related information
1. Forced Power ON mode (All models) Even when the security (Mask key) is approved, resetting the unit while holding the ATT and Preset 4 keys makes it possible to turn the power ON for 30 minutes. After 30 minutes have elapsed, it is not possible to return to the previous condition unless the unit is reset again. 2. Method of registration of the security code after EEPROM (Tuner Unit Ass'y) replacement (Code security model) 1. Enter the test mode. (See 1. How to enter the test mode) 2. Press the MENU key to enter the Menu mode.

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