LG CM4750 Manuel d'utilisateur télécharger pdf (Page 32)

4 Troubleshooting

Troubleshooting32

Troubleshooting

Problem Cause & Correction

The unit does not work

properly.

y Turn o the power of this unit and the connected external device (TV, Woofer,

DVD-player, Amplier, etc.) and turn it on again.

y Disconnect the power cord of this unit and the connected external device

(TV, Woofer, DVD-player, Amplier, 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.

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 35)

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 24 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.

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LG CM4750 Manuel d'utilisateur Page 32

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