Mitsubishi Electronics WD-73835 manual Appendix D Troubleshooting, continued, Appendices, Service

74Appendices

Appendix D: Troubleshooting, continued

Reset Name	When to Use	How to Use	Resulting Action
System Reset	If the TV does not turn on	Press the SYSTEM RESET button on the	The TV will turn off and the green LED
	or off, does not respond	control panel.	will flash quickly for about one minute.
	to the remote control or		When the green LED stops flashing,
	control-panel buttons, or		you may turn on the TV. The changes
	has audio but no video.		you made most recently, before using
			SYSTEM RESET, may be lost. Changes
			you made previously, however, are
			not lost.
TV Reset	To reset all consumer-	1. While viewing the TV, press MENU to	The TV will start the initialization
IMPORTANT:	accessible settings	display the TV Main menu.	process. The TV will then turn off
Use this reset	and all memories to the	2. With the Main menu displayed,	and the front green LED will start
only if all other	original factory defaults.		flashing. When the LED stops
		press number keys 1 2 3 to display
resets have been	CAUTION: All owner-	the Reset menu.	flashing, you can turn the TV on
unsuccessful.			again. The Parental Lock Pass code
	performed setups and	3. READ THE ON-SCREEN
			will remain unaffected, but all other
	adjustments will be
		WARNING AND INSTRUCTIONS.	memories and settings outlined in
	erased.
		• If you do not wish to use this	this Owner’s Guide will need to be
		reset, press EXIT or MENU to	set again.
		back out.
		• If you do wish to use the
		reset, press ENTER to erase all
		memories and settings.

Appendices 75

Appendix D: Troubleshooting, continued

General TV Operation

	Symptom	Remarks
1.	A fan is running even while the TV is powered	The room is too warm. When the TV is off, internal components
	off.	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	Replace the batteries.
	POWER key blinks five times.
5.	TV does not respond to the remote control or	•	Unplug the AC power cord for 10 seconds.
	to control-panel buttons and TV will not power	•	Use the System Reset button.
	on or off.
6.	When a device is selected from the Input Selec-	• Make sure the selected device is turned on.
	tion menu, the screen is purple or black (no	• Begin play of the device.
	signal source).
7.	You have forgotten your Lock menu pass code.	See Appendix B, “Bypassing the Parental Lock,” page 63.
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 restrictions
			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	Normal TV operation.
	change a function.
10.	A warning message appeared on screen	•	Room temperature has exceeded proper levels. Cool the room.
	stating, “TV will shut down in a few seconds.	•	The TV has overheated. Clear blocked air vents and ensure at
	Please check if the air flow is blocked.”		least four inches of clearance on all sides of the TV.
		•	Clean the air filter on the lamp cartridge See page 80.
TV Channels

Service and Customer Support

Service

If you are unable to correct a problem with your TV, consult your Mitsubishi dealer or Mitsubishi Con- sumer Relations at (800) 332-2119.

•DO NOT adjust any controls other than those described in this Owner’s Guide.

•DO NOT remove the protective back cover of your

TV.

Customer Support

•To order replacement or additional remote controls, lamp cartridges, or Owner’s Guides,

visit our website at www.mitsuparts.com or call

(800) 553-7278.

•For questions:

Call Consumer Relations at 800-332-2119. E-mail: MDEAservice@mdea.com Website: www.mitsubishi-tv.com

Important

All lamps replaced under warranty must be returned to Mitsubishi where they will be inspected for defect verification.

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.

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 42.

•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.