Troubleshooting - LG 47LV3550-ZB Owner's Manual

TROUBLESHOOTING

Problem
Cannot control the TV with the
remote control.
No image display and no sound is
produced.
Image appears slowly when the TV
turns on.
Cannot connect external devices.
The TV turns off suddenly.
Problem
No sound is produced while images
are displaying.
One of the speakers produce noises
or does not produce sound.
Problem
An image displays in black and
white or the colour quality is poor.
Horizontal or vertical bars appears
or images blur
Lines or streaks appear on images
Afterimages (ghosts) appear when
the product turns off
The power is on but the screen
appears extremely dark.
"No Signal" appears on the screen.
Black spots appear on the screen.
The display offset is wrong.
Thin lines appear in the background
of the screen.
Horizontal noises appear or
characters blur.
The reception on some channels is
poor
y Check the remote control sensor on the product and try again.
y Check if there is any obstacle between the product and the remote control.
y Check if the batteries are still working and properly installed (
y Check if the appropriate input mode such as TV or VCR is set for using the
remote control.
y Check if the product is turned on.
y Check if the power cord is connected to a wall outlet.
y Check if there is a problem in the wall outlet by connecting other products.
y The image is muted during the product startup process. This is normal. If the
image does not 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.
y Refer to the "Connection overview" and connect an external device.
y Check the power control settings. The power supply may be interrupted.
y Check if the Auto sleep feature is activated in the Time settings.
Refer to the "Sleep Timer".
y If there is no signal while the TV is on, the TV will turn off automatically after
15 minutes of inactivity.(Except for 22/26/32LK335C, 32/37/42LK455C,
19/22/26/32LV255C, 32/37/42/47LV355C)
y Press + or - button.
y Check if the sound is muted by pressing MUTE.
y Scroll to other channels. There may a problem with the broadcast.
y Check if the audio cables are connected properly.
y A change in ambient humidity or temperature may result in an unusual noise
when the product turns on or off.
y There is no problem with your product.
y Adjust the colour setting in the PICTURE menu.
y Keep a sufficient distance between this product and other electronic products.
y Scroll to other channels. There may a problem with the broadcast.
y Check if there are local interferences such as an electrical appliance or power
tool.
y Check the antenna or aim the antenna to the proper direction.
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.
y Adjust the brightness and contrast in the PICTURE menu.
y Check if the signal cable is connected between the TV and products properly.
y Check the selected input source by pressing INPUT.
y Several pixels in red, green, white, or black may appear on the screen that can
attribute to the characteristics of the LCD panel.
y This is normal.
y Adjust the position setting in the PICTURE menu.
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.
y Check the video cable connections.
y Adjust the Phase setting in the PICTURE menu. Refer to the "SCREEN".
y Scroll to other channels. There may a problem with the broadcast.
y The station signal may be weak. Aim the antenna to the proper direction.
y Check if there is local interference such as an electrical appliance or power
tool.
TROUBLESHOOTING
Resolution
to
Resolution
Resolution
15
, to ).