LG OM7550 Service Manual

1-6
HIDDEN KEY MODE
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).

LG OM7550 Specifications

General

Brand	LG
Model	OM7550
Category	Stereo System
Power Output	1000W
Speaker Type	2-Way
Bluetooth	Yes
USB Playback	Yes
FM Radio	Yes
Playable File Formats	MP3, WMA
USB	Yes
CD Player	Yes
USB Port	Yes
AUX Input	Yes
Remote Control	Yes
Audio Input	3.5mm AUX