Mitsubishi Electronics 148 Series manual TV Power On/Off Symptom Remarks, Picture Symptom Remarks

86Appendices

Appendix F: Troubleshooting, continued

TV Channels

Symptom	Remarks
2. You cannot access a channel.	• Use number keys instead of CH  /  .

•Be sure the channel you want to view is in memory. See Setup >

Scan on page 44.

•Check that the TV is switched to the correct device or antenna for that channel by pressing the INPUT key.

•Make sure Channel Lock is off.

•Make sure the Lock > Parent menu lock is set to off.

•If you cannot tune to a virtual digital channel even though the

TV has already memorized digital channels, tune to the physical channel number used by the broadcaster. The virtual channel will then be automatically added to memory.

3. Name options are not available for some		You can name only memorized analog channels and memorized
	channels.	digital channels not named by the broadcaster.
4. When ChannelView list is displayed, informa-		• Available information is sent from the broadcaster or cable
	tion appears incomplete	provider. No other data is available.
		• Make sure the TV clock is set correctly.
TV Power On/Off
	Symptom	Remarks
1.	TV takes an excessively long time to power	• When switched on, the TV needs time to boot up, just as a
	on.	computer does.
		• TV Energy Mode is set to Low Power. Change TV Energy
		Mode to Fast Power On in the Setup menu.
2.	You cannot program the TV to turn on auto-	• The TV may be locked.
	matically (Timer function)	• The clock may not be set.
		• TV Energy Mode is set to Low Power. Change to Fast
		Power On in Setup menu.
3.	The TV will not turn on after being plugged in.	If light on front panel is blinking, wait at least one and a half
		minutes for the light to turn off, then press POWER again.
4.	TV turned itself off and the light on the front	• Momentary power fluctuation or unusual digital signal
	panel started to blink.	caused the TV to turn off to prevent damage. Wait for the
		green light to stop flashing and turn the TV on again.
		• If the TV does not stay on, use the System Reset button on
		the control panel. If this happens frequently, obtain an AC
		line power conditioner/surge protector.
5.	TV turned itself off and the STATUS light is a	The TV has overheated. Clear blocked air vents and ensure at
	steady red.	least four inches of clearance on all sides of the TV.
6.	TV will not power off.	Use the System Reset button.
Picture
	Symptom	Remarks
1.	Picture does not look like a high-definition	Not all signals are high-definition signals. To receive high-defini-
	picture.	tion programming from your cable or satellite provider, you must
		subscribe to the provider’s high-definition service. Some over-
		the-air broadcasts are in high-definition and can be received with
		a high-quality antenna suited to your location.
2.	There is a large black or gray rectangle on	The TV’s analog closed captioning has been set to text mode in
	the screen.	the Captions menu. Turn off text mode because there is no text
		information being broadcast.