Mitsubishi Electric 738 Series Owner's Manual page 93

Appendix E: Troubleshooting, continued
TV Power On/Off
Symptom
1.
TV takes an excessively long time to power
on.
2.
You cannot program the TV to turn on auto-
matically (Timer function)
3.
TV turned itself off and the light on the front
panel started to flash.
4.
TV will not power off.
Picture
Symptom
1. Picture does not look like a high-definition
picture.
2.
TV has sound but no picture.
3. Picture has become dimmer.
4. You cannot view a picture when playing a
VHS tape.
5. VCR or DVD player's on-screen menus jitter
up and down.
6. When viewing a stopped VCR, white lines
are rolling on the screen.
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Appendices
Remarks
When powered on, the TV needs time to boot up, just as a com-
puter does.
• The TV may be locked.
• The clock may not be set.
• Momentary power fluctuation can cause the TV to turn off
to prevent damage. Wait for the green light to stop flashing
and turn the TV on again.
• If the TV does not stay on, press the
control panel for ten seconds to perform System Reset. If
this happens frequently, obtain an AC line power condi-
tioner/surge protector.
• An unusual digital signal may have been received, triggering a
protection circuit. Wait for the light to stop flashing and turn TV
on.
Press the POWER button on the control panel for ten seconds to
perform System Reset.
Remarks
Compare the picture to the TV's test picture (Picture > Picture+
> Test Picture) to check if the source signal is supplying a
lesser-quality image.
Not all signals are high-definition signals. To receive high-defini-
tion programming from your cable or satellite provider, you must
subscribe to the provider's high-definition service. Some over-
the-air broadcasts are in high-definition and can be received with
a high-quality antenna suited to your location.
MENU on the remote control. If the menu displays,
• Press
then there is a problem with the incoming signal.
• Check that all video inputs are plugged in firmly to the
correct input jacks.
POWER button on the control panel for ten
• Press and hold the
seconds to perform System Reset.
• The lamp is nearing the end of its life. Order a new lamp.
• Adjust picture brightness and contrast to maximum levels.
• Change Lamp Energy from Standard to Bright.
Check your VCR's owner's guide for further troubleshooting.
Stop playback. Possible cause: Many VCRs and DVD players
provide on-screen menus at only half-resolution that may
appear to jitter up and down.
• Turn off video mute for the VCR.
• Begin playing the tape.
• Change the VCR input from Line 1 to the VCR antenna input.
For assistance call 1(800) 332-2119
93
POWER button on the