Mitsubishi Electric 738 Series Owner's Manual page 94

94
Appendices
Appendix E: Troubleshooting, continued
7.
A color program appears as a black and
white image, or the colors are dim, or the
screen is black.
8. Picture from an HDMI input is noisy (poor
quality).
9. The image from a computer appears dis-
torted when viewed on the TV.
Sound
Symptom
1. There is no sound even when the
volume is turned up.
2. The sound does not match the screen
picture.
3. The sound from my A/V receiver does
not match the screen picture (I should
hear the correct audio from my A/V
receiver).
4. Cannot select an audio-only device; it
does not appear in the Input Selection
menu.
5. . Sound is coming from the TV speakers
instead of the A/V receiver.
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• If using component video, check that the red, green, and
blue input cables are correctly connected to the red, green,
and blue component video jacks.
• If using composite video, check that the incoming cable is
connected the TV's green Y/VIDEO jack.
• 838 Series. The PerfectColor color balance has been incor-
rectly set. Reset the PerfectColor balance.
• C ompare the picture to the TV's test picture (Picture >
Picture+ > Test Picture) to check if the noise is internal or
external to the TV.
• Upgrade a Category 1 (unmarked) HDMI cable to a newer
type of high-speed HDMI cable.
• Normal TV operation. The TV does not correct distortion in
the picture from a computer because the correction process
may cut off the edges of the image.
• The aspect ratio may be wrong for the image. Press
to change.
Remarks
• Check if the MUTE key is on.
• The TV's analog Listen to setting may be set to SAP (analog
program from the ANT input) but no SAP is being broadcast.
• Check that the Sound > Audio > TV Speakers option is set to On
to hear sound from the TV speakers. Possibly the TV Speakers
option is Off or set to Center but there is no A/V receiver con-
nected.
• If using an A/V receiver, check that the Sound > Audio > TV
Speakers option is set to Off to hear sound from the A/V receiver
speakers.
Press and hold the POWER button on the control panel for 10
•
seconds to perform System Reset.
The language selected in the Setup > Antenna Digital Audio
•
menu is not being broadcast for the current program.
The TV's analog Listen to setting may be set to SAP (analog program
from the ANT input).
• Check that DIGITAL AUDIO OUTPUT and/or AUDIO/SURROUND
OUTPUT on TV's connection panel is connected to the A/V
receiver.
Without this connection, devices connected only to the TV (and
not the A/V receiver) can be heard only from the TV speakers.
Note that this includes the ANT input, a device (such as a
camcorder) connected to the TV, and any other device sending
audio to the TV only.
• If using a NetCommand-controlled A/V receiver, NetCommand
may be selecting the wrong A/V receiver audio input. Check the
A/V receiver's NetCommand setup in the Inputs > AVR menu.
Plug an unused video plug into the Y/VIDEO jack to activate Auto
Input Sensing. Assign the name CD/Audio or MP3 to make the
audio device selectable in the Input Selection menu.
• Connect the TV's AUDIO OUT to the A/V receiver.
• Change TV Speakers setting to Off or Center.
FORMAT