HP LT4700 Guide De L'utilisateur page 64

Symptom
There is no power.
The unit cannot be operated.
The color is strange, faded, or
misaligned.
The power suddenly turned off.
54
HP HDTV User's Guide
Remedy (Continued)
Press the Power button on the remote control.
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If the Power light on the TV is on (blue), press the Power button on
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the TV.
Is the AC power cord disconnected? Make sure that both ends of the
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power cord are plugged in.
Is there power coming from the outlet? Plug a functional lamp or other
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electrical device into the same outlet as the TV to make sure that there
is power coming from the outlet.
If you are using a power strip, make sure that it is turned on.
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External influences such as lightning and static electricity may cause
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improper operation. In this case, operate the unit after first turning on
the power of the TV, or after unplugging the AC power cord and
plugging it back in after 1 or 2 minutes.
Adjust the picture tone.
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Is the room too bright? The picture may look dark in a room that is too
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bright.
Check the input signal setting.
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If you are watching a component device, make sure that the red, blue,
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and green cables are fully inserted into the proper connectors at both
ends.
Is the sleep timer set?
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The internal temperature of the TV has increased. Remove any objects
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that are blocking the vent, or clean the vent.