Service manual

3-7
3. ELECTRICAL TROUBLESHOOTING GUIDE
1) INITIAL
No
Yes
Yes
No
Yes
No
No
Yes
No
Yes
No
Yes
Yes
Front Power LED is
red?
Turn on the power switch
or Turn on the power switch
of the remote control
Check the display format LED
at the front and the output
selection switch at the rear
Check whether the cable
is correctly connected to
the monitor
Check whether the antenna
cable is connected to the
antenna input terminal at the rear.
Check whether the sound
output cable at the rear is
correctly connected.
Volume by the remote control
for the variable sound
Check whether the battery is
correctly inserted into the
remote control
Check whether the
external input terminal
of TV or monitor is
correctly selected
Power LED
Is flashing green
repeatedly for a
specific time
Channel
number is
displayed on the
screen.
Normal
screen is displayed.
The normal
sound is heard.
Change
the channel by the
remote control/You can
control the
volume
DTV section
Normally operated
Check whether the
power cord is connected
Power LED
Lights red
Check whether the battery is
correctly inserted into the
remote control