Hidden Key Mode - LG CMS4750F Service Manual

Push both Front key and RCU key to activate it for 5 seconds.
1. Disc Lock On/Off (CD Function Only Active)
 Front Key : STOP
 RCU Key : STOP
2. Check Version and Option code
 Front Key : STOP
 RCU Key : PLAY/PAUSE
 You can change [Audio MCU Version <-> CD Controller Version <-> EEPROM Option] by SKIP+/-.
3. Clear EEPROM
 Front Key : STOP
 RCU Key : SKIP-
4. Edit EEPROM
 Front Key : STOP
 RCU Key : SKIP+
 You can change the digit of option by SKIP+/-.
 You can edit 0~f by REPEAT or PLAY/PAUSE key.
5. Bluetooth DUT
 Front Key : STOP
 RCU Key : PROGRAM
 Bluetooth model only
6. Power Disc Lock On/Off (CD Function Only Active)
 Front Key : STOP
 RCU Key : EQ
7. Amp Clip On/Off
 Front Key : STOP
 RCU Key : Mute
Amp Clip Mode Change (Amp Clip On --> Amp Clip Off --> Level Down display).

HIDDEN KEY MODE

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