Troubleshooting
Problem Cause & Solution
The unit does not work
properly.
y
Turn o the power of this unit and the connected external device (TV, Woofer,
DVD-player, Amplier, etc.) and turn it on again.
y
Disconnect the power cord of this unit and the connected external device (TV,
Woofer, DVD-player, Amplier, etc.) and then try connecting again.
y
Previous setting may not be saved when device power is shut o.
No Power.
y
The power cord is not plugged in. Plug in the power cord.
y
Check whether electricity failed.
Check the condition by operating other electronic devices.
No sound.
y
Check whether you select right function.
Press FUNCTION and check the selected function.
The unit does not start
playback.
y
An unplayable disc is inserted. Check the playable disc.
y
No disc is inserted. Insert a disc.
y
The disc is dirty. Clean the disc. (Refer to page 41)
y
The disc is inserted upside down.
Place the disc with the label or printed side facing upwards.
Radio stations cannot be
tuned in properly.
y
The antenna is positioned or connected poorly.
Connect the antenna securely.
y
The signal strength of the radio station is too weak.
Tune to the station manually.
y
No stations have been preset or preset stations have been cleared (when
tuning by scanning preset channels).
Preset some radio stations, see page 30 for details.
The remote control does
not work properly.
y
The remote control is too far from the unit.
Operate the remote control within about 23 ft (7 m).
y
There is an obstacle in the path of the remote control and the unit.
Remove the obstacle.
y
The batteries in the remote control are exhausted.
Replace the batteries with new ones.
No speaker light
y
Check the speaker light eects by pressing LIGHTING.
LG Sound Sync does not
work.
y
Check whether your LG TV supports LG Sound Sync.
y
Check connection of LG Sound Sync.
y
Check sound setting of your TV and this unit.
OM7550-FB.DUSALLK_FULL BOOK_ENG_MFL69001813.indd 40 2015-08-31 4:05:41
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