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Appendix b: troubleshooting, continued – MITSUBISHI ELECTRIC 3D DLP HOME-CINEMA TELEVISION SERIES 742 User Manual

Page 45

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Appendices

45

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Appendix B: Troubleshooting, continued

General TV Operation

Symptom

Remarks

9. I have turned on CEC for my HDMI devices

but control is erratic and I wish to disable it.

• First turn off the TV’s HDMI control for the specific device.

Open the

Inputs > HDMI Control menu, select the device,

select

Off.

• Disable CEC on the device itself. See the device’s instruc-

tions.

• If the problem persists, do the following:

1. Disconnect the device from the TV.
2. Open the Inputs > Name menu and select Delete for

the device.

3. Reconnect the device to the TV and Auto Input Sensing

will recognize the device with CEC disabled.

TV Channels

Symptom

Remarks

1. The TV takes several seconds to respond to

channel changes.

• It is normal for digital channels to take longer to tune in.
• Press

ENTER after entering a channel number to minimize

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.
• Check that the TV is switched to the correct device or

antenna for that channel by pressing the

INPUT key.

• Make sure the

Lock > Parental 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.

• You may be trying to tune to an analog channel that is no

longer broadcasting.