MITSUBISHI ELECTRIC 148 Series - Manual (Page 86)

86 Appendices
Picture
Symptom Remarks
1. Picture does not look like a high-definition
picture. 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.
2. There is a large black or gray rectangle on
the screen. The TV’s analog closed captioning has been set to text mode in
the
Captions menu. Turn off text mode because there is no text
information being broadcast.
TV Power On/Off
Symptom Remarks
1. TV takes an excessively long time to power
on. • When switched on, the TV needs time to boot up, just as a
computer does.
• TV Energy Mode is set to Low Power. Change TV Energy
Mode to Fast Power On in the Setup menu.
2. You cannot program the TV to turn on auto-
matically (Timer function) • The TV may be locked.
• The clock may not be set.
• TV Energy Mode is set to Low Power. Change to Fast
Power On in Setup menu.
3. The TV will not turn on after being plugged in. If light on front panel is blinking, wait at least one and a half
minutes for the light to turn off, then press POWER again.
4. TV turned itself off and the light on the front
panel started to blink. • Momentary power fluctuation or unusual digital signal
caused 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, use the System Reset button on
the control panel. If this happens frequently, obtain an AC
line power conditioner/surge protector.
5. TV turned itself off and the STATUS light is a
steady red. The TV has overheated. Clear blocked air vents and ensure at
least four inches of clearance on all sides of the TV.
6. TV will not power off. Use the System Reset button.
TV Channels
Symptom Remarks
2. You cannot access a channel. • Use number keys instead of CH / .
• Be sure the channel you want to view is in memory. See Setup >
Scan on page 44.
• Check that the TV is switched to the correct device or antenna for
that channel by pressing the INPUT key.
• Make sure Channel Lock is off.
• Make sure the Lock > Parent menu lock is set to off.
• If you cannot tune to a virtual digital channel even though the
TV has already memorized digital channels, tune to the physical
channel number used by the broadcaster. The virtual channel will
then be automatically added to memory.
3. Name options are not available for some
channels. You can name only memorized analog channels and memorized
digital channels not named by the broadcaster.
4. When ChannelView list is displayed, informa-
tion appears incomplete • Available information is sent from the broadcaster or cable
provider. No other data is available.
• Make sure the TV clock is set correctly.
Appendix F: Troubleshooting, continued