Mitsubishi Electronics LT-3280, LT-3780 manual Troubleshooting, Problem Possible Solution

Chapter 7: Troubleshooting and Support

Troubleshooting

	Problem	Possible Solution
1.	When the HDTV is turned on for the first time,	• Check to make sure the media center and the display are connected
	the NetCommand WELCOME screen does not	using both MonitorLink™ cables (A/V and Control).
	appear (see figure 1, page 36).	• See Essential MonitorLink™ Connections in Chapter 2 for complete
		instructions.
2.	The HDTV remote control does not work.	• Check that the batteries are installed correctly.
		• Check that the selected switch is set to CABLE/DBS/DTV.
		• Be within 20 feet of the media center when using the remote control.
		• Program the remote control to operate the media center (Appendix H).
3	The media center takes several seconds to	• It is normal for digital channels to take longer to tune in.
	respond.	• Press ENTER after a channel number to avoid delays.
		• Use a 4 digit number for an over-the-air digital channel
		• Use a 6 digit number for cable digital channels
4.	Cable provider needs information to start	• On the remote control, press TV MENU and then enter the numbers
	CableCARD™ service.	999 to display the Host ID and CableCARD™ ID information.
5.	You cannot access a channel.	• Use number keys instead of CHANNEL up/down.
		• Be sure the channel you want to view is in memory. See page 69.
		• Check that the media center is turned to the correct device or antenna
		for that channel, by pressing the DEVICE button.
		• Make sure the V-Chip lock is off.
		• If unable to tune to a digital channel, tune to the physical channel
		first.
6.	On-screen displays appear each time you	• This is part of normal TV operation.
	change a function.
7.	You cannot program the media center to turn on	• The media center may be locked.
	automatically (timer function)	• The clock may not be set.
8.	There is no sound even when the volume is	• Check audio source in Device Menu.
	turned up.	• Check to see if the MUTE button is on.
		• The media center’s “Listen to:” setting may be set to SAP.
		• If you are listening through a DVI device, check that the analog audio
		has been connected to the media center and your DVI device.
9.	NetCommand unable to learn specific device	• Device does not use IR format for remote control signal. ITT and
	keys.	RF formats cannot be learned.
		• Room lighting may affect the signal. Have the remote very close
		(6 inches or less) to the display during Learning. See page 10 for the
		location of the Learning IR sensor.
		• If using a Mitsubishi remote control, make sure the slide switch is not
		set to the CABLE/DBS/DTV position.
		• Some, but not all, device key functions can be learned by
		NetCommand. For example, POWER and PLAY may be learned,
		but other functions may not.
		• The signal from the remote control may not be strong
		enough. Insert fresh batteries and try Learning again.
10.	You have forgotten your V-Chip passcode.	• See Appendix C, Bypassing the V-Chip Lock.
11.	PIP does not display a picture.	• Make sure the V-Chip lock is off.
		• Not all inputs can be displayed as a PIP.
12.	Digital channels do not appear in PIP/POP.	• Normal PIP/POP operation.
13.	You cannot see a picture when playing a VHS	• Open the Review screen and verify that the input for the current VCR
	tape.	as listed in NetCommand is the same as the physical connection.
		• Display the Device Selection menu and select the correct VCR.
		• Check your VCRs owner’s guide for further trouble shooting.

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