LG M2450D 用户手册

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页码 78
ENGLISH
58
TROUBLESHOOTING
TROUBLESHOOTING
General
The TV does not operate normally.
Problem
Resolution
The remote control doesn’t work
 
y Check to see if there is any object between the product and the 
remote control causing obstruction. Ensure you are pointing the 
remote control
 
y Ensure that the batteries are installed with correct polarity (  to  ,   
to  ).
 
y Ensure that the correct remote operating mode is set: TV, VCR, etc.
 
y Install new batteries.
Power is suddenly turned off
 
y Is the sleep timer set?
 
y Check the power control settings. Power interrupted.
 
y If the TV is switched on and there is no input signal, it will switch off 
automatically after 15 minutes to save the power consumption.
 
y When a broken file was played in the USB mode, the TV may turn off. 
Please check the file in your usb storage.
 
y Except the screen off mode of the energy saving menu.
Video Problems
Problem
Resolution
No picture & No sound
 
y Check whether the product is turned on.
 
y Try another channel. The problem may be with the broadcast.
 
y Is the power cord inserted into wall power outlet?
 
y Check your antenna direction and/or location.
 
y Test the wall power outlet, plug another product’s power cord into 
the outlet where the product’s power cord was plugged in.
Picture appears slowly after 
switching on
 
y This is normal, the image is muted during the product startup process. 
Please contact your service centre, if the picture has not appeared 
after five minutes.
No Color, poor color, or poor picture
 
y Adjust Color in menu option.
 
y Keep a sufficient distance between the product and the VCR.
 
y Try another channel. The problem may be with the broadcast.
 
y Are the video cables installed properly?
 
y Activate any function to restore the brightness of the picture.
Horizontal / vertical bars or picture 
shaking
 
y Check for local interference such as an electrical appliance or power 
tool.
Poor reception on some channels
 
y Station or cable product experiencing problems, tune to another 
station.
 
y Station signal is weak, reorient antenna to receive weaker station.
 
y Check for sources of possible interference.
Lines or streaks in pictures
 
y Check antenna (Change the direction of the antenna).