Samsung UA40JU6400 E-Manual page 174

The problem
Unwanted Powering
Off
Problems Powering On
Unable to find a
Channel
The TV image does
not look as good as it
did in the store.
If your Samsung TV appears to turn off by itself, try disabling some of the TV's
energy efficiency functions. See if
Time Sleep Timer) has been enabled. The
TV off after a specified period of time. If the Sleep Timer has not been enabled,
see if No Signal Power Off
No Signal Power Off) or
Solution Auto Power
When the TV is turned on, the remote control receiver flashes 5 times before the
screen turns on.
If you are having problems powering on your Samsung television, there are a
number of things to check before calling the service department. Confirm that the
TV's power cord is connected correctly at both ends and that the remote control
is operating normally. Make sure that the antenna cable or cable TV cable is firmly
connected. If you have a cable/satellite box confirm that it is plugged in and turned
on.
If your TV is not connected to a cable box or satellite box, run
MENU System
Store displays are all tuned to digital, HD (high definition) channels.
If you have an analogue cable/set top box, upgrade to a digital set top box. Use
HDMI or Component cables to deliver HD (high definition) picture quality.
Many HD channels are upscaled from SD (Standard Definition) content. Look for a
channel that is broadcasting true HD content.
● Cable/Satellite Subscribers: Try HD channels from the channel lineup.
● Terrestrial/Cable Antenna Connection: Try HD channels after running the Auto
Tuning function.
Adjust the cable/satellite box's video output resolution to 1080i or 720p.
Try this!
Sleep Timer
((MENU/123) MENU
Auto Power Off ((MENU/123)
Off) has been enabled and disable them.
Setup) or Auto Tuning (Broadcasting
((MENU/123) MENU
Sleep Timer automatically turns the
System Eco Solution
MENU System
Setup ((MENU/123)
Auto Tuning).
System
Eco