This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily.To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit and on the remotecontrol for more than a the standard time in the appropriate condition. (See below chart.)VOL. DOWN(Minimum)Initialization of factory TV data.TV mode 1 2 sec. NOTE: If you set factory initialization, the memories are reset suchas the channel setting, and the POWER ON total hours.DVD mode VOL. DOWN(No disc) (Minimum)POWER ON total hours are displayed on the screen.ALL mode 6 2 sec. Can be checked of the INITIAL DATA of MEMORY IC.Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".VOL. DOWN Check of the SUM DATA and MICON VERSION on the screen.(Minimum) Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".Display of the Adjustment MENU on the screen.ALL mode 9 2 sec. Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen DisplayAdjustment).Check of the firmware version.1 2 sec. Refer to the "RE-WRITE FOR DVD FIRMWARE".NOTE: Do not use this for normal servicing.DVD mode Releasing of PARENTAL LOCK.(No disc) Refer to the "PARENTAL CONTROL - RATING LEVEL".STOP 7 2 sec.VOL. DOWN(Minimum)TV mode 8 2 sec.VOL. DOWN(Minimum)DVD mode(No disc) STOPTV mode 0 2 sec. Releasing of V-CHIP PASSWORD.VOL. DOWN(Minimum)4 2 sec. Initialization of factory DVD data.SERVICE MODE LISTSetCondition Set Key RemoconKeyStandardTime OperationsC-1