Operation Manual

82 Appendices
General TV Operation
Symptom Remarks
1. A fan is running even while the TV is powered
off.
The room is too warm. When the TV is off, internal components
continue to draw power and must be cooled by the fan.
2.
The fan gets louder after the TV is shut off. Normal operation. The fan speeds up to cool the lamp quickly
after the TV has been shut off.
3.
The TV remote control does not work. Check that the batteries are fresh and installed correctly.•
Check that the slide switch on the remote is set to TV.•
Be no more than 20 feet from the TV when using the remote control.•
Program the remote control to operate the TV or other device.•
Reset the remote control.•
If you have a custom home theater controller but prefer to use •
the TV’s remote control, unplug the controller cable from the
TV’s IR—NetCommand® Output/External Controller Input.
4. When I try to use the remote control, the
POWER key blinks five times.
Replace the batteries.
5. TV does not respond to the remote control or
to control-panel buttons and TV will not power
on or off.
Unplug the AC power cord for 10 seconds.•
Use the System Reset button.•
6.
When a device is selected from the Input Selec-
tion menu, the screen is blue or black (no signal
source).
• Makesuretheselecteddeviceisturnedon.
• Beginplayofthedevice.
7. You have forgotten your Lock menu pass code. See Appendix B, “Bypassing the Parental Lock,” page 65.
8. Rating restrictions are not working. Open the Parental Lock menu and:
• VerifythattheU.S.RatingsorOtherRatingssettingisOn.
• ChecktheLockTime/UnlockTimetocheckifratingrestric-
tions are disabled.
• RatingrestrictionsapplyonlytocontentonANT1andANT2,
and VIDEO composite video jacks.
9. On-screen displays appear each time you
change a function.
Normal TV operation.
10. A warning message appeared on screen
stating, “TV will shut down in a few seconds.
Please check if the air flow is blocked.”
• Roomtemperaturehasexceededproperlevels.Coolthe
room.
• TheTVhasoverheated.Clearblockedairventsandensure
at least four inches of clearance on all sides of the TV.
• CleantheairfilteronthelampcartridgeSeepage75.
11.
I have turned on CEC for my HDMI devices but
control is erratic and I wish to disable it.
Turn off all NetCommand HDMI control signals from the TV. Open the •
Inputs > NetCommand HDMI Control menu and set to Off (page 48).
Turn off the TV’s NetCommand HDMI control for the specific •
device. Open the Inputs > Name menu, select the device, select
Control Off (page 48).
Disable CEC on the device itself. See the device’s instructions.•
If the problem persists, do the following:•
Disconnect the device from the TV.1.
Open the Inputs > Name menu. Highlight the device and 2.
select Delete to remove the device from the Input Selection
menu.
Reconnect the device to the TV and Auto Input Sensing will 3.
recognize the device as a non-CEC device.
Appendix F: Troubleshooting, continued