Chapter 7: Troubleshooting And Support; Troubleshooting - Mitsubishi Electric LT-3280 Owner's Manual

Chapter 7: Troubleshooting and Support

Troubleshooting

1. When the HDTV is turned on for the first time,
the NetCommand WELCOME screen does not
appear (see figure 1, page 36).
2. The HDTV remote control does not work.
3 The media center takes several seconds to
respond.
4. Cable provider needs information to start
CableCARD™ service.
5. You cannot access a channel.
6. On-screen displays appear each time you
change a function.
7. You cannot program the media center to turn on
automatically (timer function)
8. There is no sound even when the volume is
turned up.
9. NetCommand unable to learn specific device
keys.
10. You have forgotten your V-Chip passcode.
11. PIP does not display a picture.
12. Digital channels do not appear in PIP/POP.
13. You cannot see a picture when playing a VHS
tape.
88
Problem Possible Solution
• Check to make sure the media center and the display are connected
using both MonitorLink™ cables (A/V and Control).
• See Essential MonitorLink™ Connections in Chapter 2 for complete
instructions.
• 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).
• It is normal for digital channels to take longer to tune in.
• 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
• On the remote control, press TV MENU and then enter the numbers
999 to display the Host ID and CableCARD™ ID information.
• 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.
• This is part of normal TV operation.
• The media center may be locked.
• The clock may not be set.
• Check audio source in Device Menu.
• 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.
• Device does not use IR format for remote control signal. ITT and
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.
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.
• See Appendix C, Bypassing the V-Chip Lock.
• Make sure the V-Chip lock is off.
• Not all inputs can be displayed as a PIP.
• Normal PIP/POP operation.
• Open the Review screen and verify that the input for the current VCR
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.
See page 10 for the