LG Electronics 37LP645H, 39LP645H manual Troubleshooting, General, Audio, Video, Problem Solution

Page 23

TROUBLESHOOTING 23

TROUBLESHOOTING

General

Problem

Solution

 

 

 

 

Cannot control the TV with the remote

yyCheck the remote control sensor on the product and try again.

 

control.

yyCheck if there is any obstacle between the product and the remote control.

 

yyCheck if the batteries are still working and properly installed ( to ,

to ).

 

 

 

No image display and no sound is

yyCheck if the product is turned on.

 

produced.

yyCheck if the power cord is connected to a wall outlet.

 

 

yyCheck if there is a problem in the wall outlet by connecting other products.

Image appears slowly when the TV

yyThe image is muted during the product startup process. This is normal. If the image does not

turns on.

appear in a few minutes, unplug the TV for 30 seconds and try again. If the image still does

 

not appear, contact the authorized service center in your local area.

 

 

 

 

Cannot connect external devices.

yyRefer to the “Connection Overview” and connect an external device.

 

 

 

 

The TV turns off suddenly.

yyCheck the power control settings. The power supply may be interrupted.

 

 

yyCheck if the Auto sleep feature is activated in the Time settings.

 

 

Refer to the “Sleep Timer”.

 

Audio

Problem

Solution

 

 

No sound is produced while images are

yyPress VOL + or - button.

displaying.

yyCheck if the sound is muted by pressing MUTE.

 

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

 

yyCheck if the TV Speaker feature is activated in the menu option.

 

 

No output from one of the speakers

yyAdjust Balance in the menu option.

 

 

Unusual sound from inside the TV is

yyA change in ambient humidity or temperature may result in an unusual noise when the

produced.

product turns on or off. There is no problem with your product.

 

 

Video

Problem

Solution

 

 

An image displays in black and white or

yyAdjust the color setting in the menu option.

the color quality is poor.

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

 

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

 

 

Horizontal or vertical bars appears or

yyCheck if there are local interferences such as an electrical appliance or power tool.

images blur

 

 

 

Lines or streaks appear on images

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

 

 

Afterimages (ghosts) appear when the

yyPixels may have been damaged from a fixed image displayed for a long time (image burn).

product turns off

Use a screen saver to prevent the pixel damage on the screen.

 

 

The power is on but the screen appears

yyAdjust the brightness and contrast in the menu option.

extremely dark.

 

 

 

“No Signal” appears on the screen.

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

 

yyCheck the selected input source by pressing INPUT.

Black spots appear on the screen.

yySeveral pixels in red, green, white, or black may appear on the screen that can attribute to

 

the characteristics of the panel.

 

yyThis is normal.

 

 

The display offset is wrong.

yyAdjust the position setting in the Picture menu.

 

yyCheck 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

yyCheck the video cable connections.

the screen.

 

 

 

The reception on some channels is

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

poor

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

 

yyCheck if there is local interferences such as an electrical appliance or power tool.

ENGLISH

Image 23
Contents LED TV English Important Safety InstructionsEnglish YyGrounding Screen Preventing Image burn or Burn-in on your TVOpen Source Software Notice LicensesTable of Contents Unpacking Assembling and PreparingSee p EA, M6 xInput Parts and buttonsGame Controll Button DescriptionRear Connection Panel Lifting and moving the TV Attaching the stand Setting up the TVMounting on a table Using the Kensington security system optional90˚90˚ LSW430B Mounting on a wallSecuring the TV to a wall optional 32/37/39/42LP620H, 32/42LP621H Tidying cablesExternal speaker out For 32/37/39/42LP645HRemote Control Guide MENU/SETTINGSPortal InfoModels Specifications60LP645H 42LP645H 42LP620H 42LP621H47LP645H 55LP645HResolution Horizontal Vertical Frequency KHz Frequency Hz Hdmi DTV supported modeRGB PC, Hdmi PC supported mode Resolution Horizontal Vertical Frequency Frequency kHzAudio TroubleshootingProblem Solution GeneralLG Customer Information Center