JVC PD-42V475 Service Manual page 188

Troubleshooting
PROBLEMS
There is no sound
from the TV's
speaker
Static electricity
You hear occasional
crackling sounds
The AUTO DEMO
finished automatically
The following are not malfunctions.
• The television may make a creaking sound if the temperature of the room or the
temperature of the inside of the television changes. If there is no problem with the screen or
sound, then there is no need to worry.
• Although the picture may be temporarily disturbed and noise may be seen on the screen if
the power is turned on immediately after it has been turned off, this is not a malfunction.
• If the television is used at a location above 2,000 m, a buzzing noise and image distortion
may occur. This phenomenon is peculiar to PDP (Plasma Display Panel), and could occur
with any television using PDP. It is not a malfunction.
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• The Center CH Input may be turned on. See page 49.
• The TV Speaker option may be turned off. See page 47.
• It is normal to feel static electricity if you brush or touch the screen.
• It is normal for the TV to make crackling sounds when first turned on or off. Unless
the sound or picture become abnormal, this is fine.
• The TV recieved a signal from the AV CompuLink
• The On Timer that you programmed has started.
• The channel that the AUTO DEMO is using is a channel that is blocked by V-Chip.
• The Auto Shut Off that you programed has occured.
CHECK