LG CM7420, Service Manual

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1-6
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