MITSUBISHI ELECTRIC WD-73837 - Manual (Page 21)

Troubleshooting 21
TV Power On/Off
Symptom Remarks
1. TV takes an excessively long time to power
on. When powered on, the TV needs time to boot up, just as a com-
puter does. Also, the TV’s lamp requires a few moments to heat
up to full brightness.
2. You cannot program the TV to turn on auto-
matically (Timer function). • The TV may be locked.
• The clock may not be set.
3. TV turned itself off and the light on the front
panel started to blink. • Momentary power fluctuation caused the TV to turn off to
prevent damage. Power on the TV and wait for the lamp to
illuminate.
• If the TV does not stay on, press the POWER button on 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. Power on the TV.
4. TV will not power off. Press the POWER button on the control panel for about ten
seconds to perform System Reset.
TV Channels
Symptom Remarks
1. The TV takes several seconds to respond to
channel changes. • It is normal for digital channels to take longer to tune in.
• Press ENTER after entering a channel number to avoid
delays.
• Use a 4-digit number for an over-the-air digital channel.
• Use a 6-digit number for digital cable channels if your cable
service is able to recognize 6-digit channel numbers.
2. You cannot access a channel. • Use number keys instead of CHANNEL Up/Down.
• Be sure the channel you want to view is in memory.
• Check that the TV is switched to the correct device or
antenna for that channel by pressing the ACTIVITY key.
• 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.
• You may be trying to tune to an analog channel that is no
longer broadcasting.
3. When ChannelView list is displayed, informa-
tion appears incomplete • Program information is displayed only for channels tuned
during the most recent power-on.
• Available information is sent from the broadcaster or cable
provider. No other data is available.
• Make sure the TV clock is set correctly.
• Press INFO to update the display.