Troubleshooting - LG NB4540 Owner's Manual

30

Troubleshooting

Troubleshooting
PROBLEM
The unit does not
work properly.
No Power
No sound
4
No woofer sound
No display
The remote control
does not work
properly.
The AUTO POWER
function does not
work.
LG Sound Sync does
not work.
NB5540-NE.DGBRLLF_ENG.indd 30
CAUSE & CORRECTION
y Turn off the power of this unit and the connected external device (TV, Woofer,
DVD-player, Amplifier, etc.) and turn it on again.
y Disconnect the power cord of this unit and the connected external device (TV,
Woofer, DVD-player, Amplifier, etc.) and then try connecting again.
y The power cord is unpluged.
Plug in the power cord.
y Check the condition by operating other electronic devices.
y Incorrect input source is selected.
Check the input source and select the correct input source.
y The mute function is activated.
Press MUTEi or adjust the volume level to cancel the mute function.
y When you are using connection with a external device (set top box, Bluetooth
device etc.), adjust volume level of the device.
y The power cord of the subwoofer is not connected.
Plug the power cord into the wall outlet securely.
y Pairing between the unit and the subwoofer gets disconnected.
Connect the unit and the subwoofer. (Refer to the page 12.)
y The DISPLAY OFF function is activated.
Press SLEEP repeatedly to cancel the function. (Refer to the page 21.)
y The remote control is too far from the unit.
Operate the remote control within about 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 is exhausted.
Replace the batteries with new one.
y Check connection of the external device such as TV, DVD/Blu-Ray player or
Bluetooth device.
y Check the state of SIMPLINK and turn off SIMPLINK.
y Depending on the connected device, this function may not operate.
y Check whether your LG TV supports LG Sound Sync.
y Check connection of LG Sound Sync (Optical or wireless).
y Check sound setting of your TV and this unit.
2014-07-23 11:58:24