JVC AV 20420 - Manual (Page 38)

Troubleshooting
38
There is no power
There is no picture
or sound
You cannot select a
certain channel
The power turns off
by itself
The clock is wrong
The color quality
is poor
The On Timer is
blinking
There are lines
across the picture
The picture is spotted
There are double
pictures (ghosts)
Picture is snowy
(image noise)
Screen is 80% black
Stereo or bilingual
programs can't be
heard
There is no sound
from the TV's speakers
Static electricity
You hear occasional
crackling sounds
Remote control is not
operating properly or
at all
• See if the power cord became unplugged.
• Check for a blown fuse or circuit breaker or a power outage.
• The antenna could be disconnected.
• The input mode could be set improperly. See page 35.
• The tuner (Auto Tuner Setup) could be set improperly. See page 17.
• The TV station may be having difficulties. Check to see if other stations are working.
• Check to see that the batteries are still working and properly installed.
• Make sure the remote has a clear sight path to the TV.
• You may be too far from the TV. You must be within 23 feet (7 meters).
• Make sure the channels have been programmed. See "Channel Summary", page 18.
• Check to see if the channel is locked. See "Channel Summary - Lock" page 18.
• Make sure the set did not become unplugged.
• Perhaps the On/Off Timer is set. See page 32.
• Check to see if the Sleep Timer was set. See page 36.
• The power was interrupted and the clock was not reset. See page 31.
• There is a problem with the TV. Unplug the set and call for service.
• Tint and Color may be improperly adjusted. See page 27.
• The Video Status mode may be turned to the wrong setting. See page 28.
• There could be interference from another electrical appliance, such as a computer,
another TV or VCR. Move any such appliances further away from the TV.
• There could be interference from a high-wattage appliance, like a hairdryer or vacuum,
operating nearby. Move the antenna away from the appliance or change to a coaxial
cable connection which is less prone to interference.
• A building or passing airplane can reflect the original signal and produce a second,
slightly delayed one. Adjust your antenna position.
• Your antenna may be damaged, disconnected or turned. Check the antenna
connection. If the antenna is damaged, replace it.
• The Closed Caption Text mode is on. Turn it off in the Closed Caption Menu, page 33.
• Make sure the MTS settings are correct. See "MTS" on page 29.
• The TV Speaker option may be turned off. See page 30.
• 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.
PROBLEMS CHECK
AV-20420,421 English OK 2/11/03, 9:34 AM 38