Mitsubishi Electronics 246 Series, 148 Series manual General TV Operation Symptom Remarks

Appendices 85

Appendix F: Troubleshooting, continued

General TV Operation

	Symptom	Remarks
1.	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.
2.	When I try to use the remote control, the	Replace the batteries.
	POWER key blinks five times.
3.	TV does not respond to the remote control or to	• Unplug the AC power cord for 10 seconds.
	control-panel buttons and TV will not power on	• Use the System Reset button.
	or off.	• 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 a device is selected from the Input Selec-	• Make sure the selected device is turned on.
	tion menu, the screen is blue or black (no signal	• Begin play of the device.
	source).
5.	You have forgotten your Lock menu pass code.	See Appendix B, “Bypassing the Parental Lock,” page 67.
6.	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.
		• Not all broadcasters send ratings. Contact your local
		broadcaster or cable provider.
7.	On-screen displays appear each time you	Normal TV operation.
	change a function.
8.	I am using CEC for my HDMI devices but control	• Turn off the TV’s CEC control. See Inputs > Name menu,
	is erratic and I wish to disable it.	page 50.
		• Disable CEC on the device itself (see the device’s instruc-
		tions),
		• If the problem persists, even after disabling the device’s
		CEC, do the following:
		1. Disconnect the device from the TV.
		2. Open the Inputs > Name menu. Highlight the device
		and select Delete to remove the device from the Input
		Selection menu.
		3. Reconnect the device to the TV and Auto Input Sensing
		will recognize the device as a non-CEC device.
TV Channels
	Symptom	Remarks
1.	The TV takes several seconds to respond to	• It is normal for digital channels to take longer to tune in.
	channel changes.	• Press ENTER after a entering channel number to avoid delays.
		• Use a 4-digit number for an over-the-air digital channel.
		• Use a 6-digit number for digital cable channels if your cable
		service is able to recognize 6-digit channel numbers.