LG CM4550 Owners Manual - English - Page 34

Troubleshooting, Problem, Cause & Correction

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34 Troubleshooting Troubleshooting Troubleshooting Problem Cause & Correction The unit does not work properly. yy Turn off the power of this unit and the connected external device (TV, Woofer, DVD-player, Amplifier, etc.) and turn it on again. yy Disconnect the power cord of this unit and the connected external device (TV, Woofer, DVD-player, Amplifier, etc.) and then try connecting again. yy Previous setting may not be saved when device power is shut off. No Power. yy The power cord is not plugged in. Plug in the power cord. yy Check whether electricity failed. Check the condition by operating other electronic devices. No sound. yy Check whether you select right function. Press FUNCTION and check the selected function. yy Check to see if the Speakers are connected correctly. Speaker cables connected correctly. 4 yy An unplayable disc is inserted. Insert a playable disc. The unit does not start playback. yy No disc is inserted. Insert a disc. yy The disc is dirty. Clean the disc. (Refer to page 37) yy The disc is inserted upside down. Place the disc with the label or printed side facing upwards. yy The antenna is positioned or connected poorly. Connect the antenna securely. yy The signal strength of the radio station is too weak. Tune to the station Radio stations cannot be manually. tuned in properly. yy No stations have been preset or preset stations have been cleared. (when being tuned by scanning preset channels) Preset some radio stations, see page 26 for details. yy The remote control is too far from the unit. Operate the remote control within about 23 ft (7 m). The remote control does yy There is an obstacle in the path of the remote control and the unit. Remove not work properly. the obstacle. yy The batteries in the remote control are exhausted. Replace the batteries with new ones. yy Check whether your LG TV supports LG Sound Sync. LG Sound Sync does not work. yy Check connection of LG Sound Sync. yy Check sound setting of your TV and this unit.

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Troubleshooting
34
Troubleshooting
4
Troubleshooting
Problem
Cause & Correction
The unit does not work
properly.
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
Previous setting may not be saved when device power is shut off.
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.
y
Check to see if the Speakers are connected correctly. Speaker cables
connected correctly.
The unit does not start
playback.
y
An unplayable disc is inserted. Insert a playable disc.
y
No disc is inserted. Insert a disc.
y
The disc is dirty. Clean the disc. (Refer to page 37)
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
being tuned by scanning preset channels) Preset some radio stations, see
page 26 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.
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.