LG 42LK450 业主指南

An image displays in black and 

white or the colour quality is poor.

y

y

y

y

Keep a sufficient distance between this product and other electronic products.

y

y

Scroll to other channels. There may a problem with the broadcast.

Horizontal or vertical bars appears 

or images blur

y

y

Check if there are local interferences such as an electrical appliance or power 

tool.

Lines or streaks appear on images

y

y

Check the antenna or aim the antenna to the proper direction.

Afterimages (ghosts) appear when 

the product turns off

y

y

Pixels may have been damaged from a fixed image displayed for a long time 

(image burn). Use a screen saver to prevent the pixel damage on the screen.

The power is on but the screen 

appears extremely dark.

y

y

“No Signal” appears on the screen.

y

y

Check if the signal cable is connected between the TV and products properly.

y

y

Check the selected input source by pressing 

INPUT.

Black spots appear on the screen.

y

y

Several pixels in red, green, white, or black may appear on the screen that can 

attribute to the characteristics of the panel. 

This is normal.

The display offset is wrong.

y

y

y

y

Check if the video card resolution and frequency are supported by the product. 

If the frequency is out of range, set to the recommended resolution using the 

display settings on the external device.

Thin lines appear in the background 

of the screen.

y

y

Check the video cable connections.

Horizontal noises appear or 

characters blur.

y

y

Adjust the Phase setting in the Picture menu.

The reception on some channels is 

poor

y

y

Scroll to other channels. There may a problem with the broadcast.

y

y

The station signal may be weak. Aim the antenna to the proper direction.

y

y

Check if there is local interference such as an electrical appliance or power tool.