Troubleshooting guide

2
Distorted Sound or No Sound
Distorted noise from speakers with
HDMI, Component, AV connection.
- Check cable connection. Make sure that a video cable is not connected
to an audio input. For example, component cables have a red audio
connection and a red video connection so make sure that the two red
connections are connected to the correct A/V outputs and inputs.
- Connect another device to the same input on your TV using the same
connection cables. If there is also noise with this device, replace the
cables.
Distorted noise from speakers with
RF (Antenna) connection.
- Change to another channel. If the noise stops, the problem is cause by
the broadcast, not the TV.
- Check the signal strength and SNR of the digital channel by going to
"Menu>Support>Self Diagnosis>Signal Information". Low signal strength
can cause sound distortion.(Activates at digital channel only)
Background audio is loud and
voices are low.
- Turn off sound effects like SRS and Virtual Surround. Go to
Menu>Sound.
- Try different sound modes or perform sound reset.
Purple/green rolling horizontal bars
with a buzzing noise from the TV
speakers.
- Remove the left and right audio connections from the set-top box. If
buzzing noise stops, this indicates that the set-top box has a grounding
issue.
- Replace component video cable connection with HDMI cable connection.
No Picture, No Video
1. TV won't turn on
. Make sure the AC power cord is plugged in securely to the wall outlet and
the TV.
. Make sure the wall outlet is working.
Securely insert the power cord
. Try pressing the Power button on the TV to make sure the remote is
working properly
If the TV turns on, it may be caused by Remote Control.
To fix the Remote problem, refer to "Remote control does not work"
below
2. TV turns off automatically . Check if the Sleep Timer is set to On in the Setup menu
. If connected the TV to your PC, check your PC power settings
. Make sure the AC power cord is plugged in securely to the wall outlet and
the TV.
. If there is no signal for about 10 ~ 15 minutes with Antenna/Cable
connection, the TV will turn off.
3. No picture/Video
. Check cable connections.(remove and reconnect all cables of TV and
external devices)
. Set your external device's (Cable/Sat Box, DVD, Blu-ray etc) video output
to match the connections to the TV input. For example, external device's
output : HDMI , TV's input : HDMI
. Make sure your connected device is powered on
. Make sure to select the TV's correct source by pressing the SOURCE
button on the TV remote
. Reboot the connected device by reconnecting the device's power cable