Справочник Пользователя для Mitsubishi Electronics 838 SERIES

1.  NetCommand unable to learn specific device 

keys.

•  A/V 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.

•  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.

•  The key was “learned” correctly but can be accessed only 

from the 

Tools menu.

2.  The A/V receiver is the selected audio source 

but there is no sound.

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 

OUTPUT is connected to the A/V receiver and the 
correct key has been “learned.”

 

-

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.

3.  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 “Automatic 
Audio/Video Switching Over an HDMI Connection,” page 72.

4.  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 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

5.  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.

1. 

I cannot connect the TV to the 
network.

Go to the 

Setup > Network menu.  Obtain the TV MAC address and 

provide it to the router.

2.  I plugged in a wireless USB adapter, 

but the wireless connection is not 
working.

The network may be locked.  Go to 

Setup > Network.  Highlight the 

network name and supply the pass code.

3.  The INTERNET key only goes to VUDU. Normal operation.  The TV receives all internet services through VUDU 

Apps.  The TV does not provide full internet access as does a web 
browser on a computer.