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76 Appendices
Appendix E: Troubleshooting, continued
NetCommand (Y and 734 series only)
Symptom Remarks
1. Cannot see the menu from the A/V Receiver.
The A/V Receiver is not connected to any video input of the TV.
To check the A/V Receiver menu, temporarily plug into an unused
input of the TV, such as Input 3. Exit the Auto Input Sensing screen
and select Input 3 from the Input Selection menu. Press MENU.
2. NetCommand unable to learn specific device
keys.
• 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 remotes very
close (6 inches or less) to the TV during Learning.
• If learning a Mitsubishi remote control, make sure slide
switch is not set to TV 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.
3. The A/V Receiver is the selected audio
source but there is no sound.
• Check to see if the A/V Receiver power is turned on.
• With the power turned on, redisplay the Input Selection
menu and press ENTER to allow NetCommand to correctly
select the A/V Receiver input.
• Incorrect setup in the Inputs > AVR menu. Check the
device connection assigned in the AVR menu.
4. There is no sound when I switch to the A/V
receiver using the Speaker setting in the
AV menu, even though I have physically
connected the TV to the A/V receiver and
learned IR codes for the receiver inputs.
Wrong input or no input was assigned in the AV Receiver Learn
screen. All audio should go to the A/V receiver as audio output
from the TV unless the device’s audio is connected directly to
the A/V receiver. See chapter 6, “NetCommand,” and perform
the procedure to select the correct A/V receiver input.
5. There is no sound from the A/V receiver
for my DVD player or other surround sound
device even though I learned the IR code for
the A/V receiver’s DVD input or other input.
NetCommand A/V receiver setup for the DVD player or digital
surround sound device or other device is not switching prop-
erly. See chapter 6, “NetCommand,” and perform A/V receiver
setup for a digital surround sound device.
6. I’ve selected my DVD player or other sur-
round sound device in combination with the
TV speakers but hear no sound from the TV
speakers.
If you have only an audio connection from the device to the A/V
receiver, a physical audio connection from the device to the TV
is also required.
• Connect the left and right audio output from the device to the
appropriate TV audio input. Now you can hear audio from
the device through either the TV speakers or the A/V receiver.
• To switch audio sources, press AUDIO, press to show the
Speakers option, then press to select AV Receiver or TV.
7. I “learned” the RECORD key for my VCR/
DVR but when I pressed the RECORD key,
the VCR/DVR did not record anything.
Check that the VCR or DVR is receiving a signal directly from
your cable box or satellite receiver.
Indicators
Symptom Remarks
4. STATUS indicator light is a steady/flash-
ing red.
• Unplug set from AC power. Plug back in an wait one minute for
blinking to stop.
• Press SYSTEM RESET button and wait for blinking to stop.
• If blinking continues, service is required. Contact your dealer or
a Mitsubishi Authorized Service Center to arrange for a service
evaluation. Listings of Mitsubishi Authorized Service locations
can be obtained from our web site, www.mitsubishi-tv.com or
by calling 1-800-332-2119.