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Troubleshooting
General Troubleshooting (Some Quick and Easy Tips for Resolving Problems)
Software Problems
Cannot direct enter
channel number or “No
Signal” appears.
Channel not included in channel line-
up in TV controller (PTC).
After 2-5-5 + MENU (Commercial Mode Setup) or Express Script,
only channels included in PTC will appear. If channel is available,
it can be added to channel lineup. If it is not available, the “No
Signal” message appears on the TV screen.
No channels present
after setup.
Auto Tuning (channel search) not
run.
Refer to Commercial Mode Setup or Express Script procedure,
as appropriate. Auto Tuning must be run in order for the channel
lineup to be populated. Note for Express Script: You must select
“Execute Auto Search” in the Auto Search screen to run the
search (see page 17). To reinitiate the Express Script, set
Installer Menu item 117 FACT DEFAULT to 001.
Power
No power. See troubleshooting flow chart on following page.
Display Panel Picture
No picture. Display panel is turned off. • Turn TV ON.
• Power failure?
Antenna/cable not connected. Connect antenna/cable signal to TV.
Connections incorrect. Check connections on TV.
MPI not connected. If applicable, connect MPI cable to MPI device.
Encrypted program. Try another channel.
Wrong tuning band. Adjust Installer Menu settings.
Erratic Operation
Installer Menu setup. Wrong Installer Menu settings. Adjust Installer Menu settings as required.
Installer Remote
Remote doesn’t work. Remote not in TV Mode. Use MODE key to select “TV”; puts remote into TV Mode.
Not aimed at IR remote sensor. Point remote at TV’s IR receiver on TV.
Remote too far from IR sensor. Move remote closer to TV’s IR receiver or darken room.
MPI not connected. If applicable, connect MPI cable to MPI device.
IR path to TV’s receiver obstructed. Remove obstructions.
Weak batteries. Replace batteries.
Wrong battery polarity. Check that “+” and “-” match in battery compartment.
Too much light in room. Dim room light.
Bed Switch set to wrong bed. Set Bed Switch or update Installer Menu, as necessary.
Wrong Installer Remote. Requires compatible Installer Remote. Contact your LG dealer.
Picture Reception
Normal picture,
poor or no sound.
Audio muted. Press MUTE or use Volume Up key to increase sound level.
Broadcast problem. Try a different channel.
Pillow Speaker Switch setting. Check Pillow Speaker Switch setting. If set to Normal, sound will
be heard on TV speakers. If set to Pillow, sound will be heard on
pillow speaker.
Note: For other problems not caused by the TV, refer to the other devices’ operating guide(s).
Symptom Possible Cause(s) Possible Solution(s)