Appendix e: troubleshooting, continued – MITSUBISHI ELECTRIC 737 User Manual
Page 79
Appendices
79
Appendix E: Troubleshooting, continued
NetCommand IR Control (NetCommand-equipped models only)
Symptom
Remarks
3.
The A/V receiver is the selected audio source 
but there is no sound.
A/V Receiver Set Up for Audio-Only Switching
•
Check to see if the A/V Receiver power is turned on.
-
With A/V receiver power turned on, redisplay the Activ-
-
ity 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.
A/V Receiver Set Up for Audio and Video Switching over HDMI
•
Check to see if the A/V Receiver power is turned on.
-
If the device is connected only to the TV (e.g., on ANT
-
or a front panel input), verify that the TV’s AUDIO 
OUTPUT is connected to the A/V receiver.
The A/V receiver is not switching properly because 
-
you have not learned the IR codes for the A/V receiver 
inputs to which your devices are connected.
4.
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.
(A/V Receiver Set Up for Audio-Only Switch-
ing)
NetCommand A/V receiver setup for the DVD player or digital 
surround sound device or other device is not switching prop-
erly. See “Case 2: Automatic A/V Receiver Switching to a Sur-
round Sound Device,” page 54, and perform A/V receiver setup 
for a digital surround sound device.
5.
There is no sound or picture from the A/V 
receiver for my DVD player or other device 
connected to the A/V receiver; the A/V 
receiver should be sending video to the TV 
over an HDMI cable.
(A/V Receiver Set Up for Audio and Video 
Switching over HDMI)
The NetCommand A/V receiver setup is not switching audio 
and video inputs properly because you did not “learn” the A/V 
receiver’s IR codes for the device inputs. See “Case 3: Auto-
matic Audio and Video Switching via HDMI,” page 55.
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.
A/V Receiver Set Up for Audio-Only Switching
•
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 MORE 9 (Audio), press 
-
to show the Speakers option, then press to
select AV Receiver or TV.
A/V Receiver Set Up for Audio and Video Switching over HDMI
•
With your DVD player connected to the A/V receiver, only 
video is passed from the A/V receiver to the TV because of 
copy-protection restrictions on the HDMI signal
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.