LG SPH4B-W - Rear Panel Connections

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Only for training and service purposes.
HIDDEN MODE KEYS
EEPROM EDIT Main unit ‘ (Volume)’ + Remote control ‘NIGHT ON’
EEPROM CLEAR (Initialize) Main unit ‘ (Volume)’ + Remote control ‘'ASC ’
VERSION CHECK Main unit ‘ (Volume)’ + Remote control ‘ (Play/Pause)’
HIDDEN KEY MODE