Troubleshooting - JVC LT-20BW7BJ Instructions Manual

Jvc wide lcd panel tv instructions
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Troubleshooting

If a problem arises while you are using the TV, please read this troubleshooting guide carefully
before you ask to have the TV repaired. You may be able to fix it easily by yourself. For example,
if the mains plug is disconnected from the mains outlet, or the TV aerial has problems, you may
think there is a problem with the TV itself.
Important:
• This troubleshooting guide only covers problems whose causes are not easy to decide. If you
have a question when you are operating a function, read the page(s) for that function carefully,
not this troubleshooting guide.
• If you follow the advice in this troubleshooting guide without any success, unplug the mains
plug and ask for your TV to be repaired. Do not attempt to repair the TV by yourself or to
remove the rear cover of the TV.
If you cannot turn on the TV
• Is the mains plug connected to the mains
outlet?
• Is the power lamp lit? If not, press the
button on the TV.
No picture or no sound
• Have you chosen a TV channel with very
poor reception? If so, the Blue Back
function will be activated: the entire
screen becomes blue, and the sound is
muted. If you still want to view the TV
channel, follow the description "Blue
Back" on page 27 to change the Blue
Back function setting to Off.
• If the Sound System setting for a TV
channel is incorrect, it may prevent the
sound from being issued. Follow the
description "Manual Program" on page 23
to use the Manual Program function to try
to change the Sound System setting.
Poor picture
• If noise (snow) totally blocks out the
picture, there may be a problem with the
aerial or aerial cable. Check the following
to try to solve the problem:
– Have the TV and aerial been connected
properly?
– Has the aerial cable been damaged?
– Is the aerial pointing in the right
direction?
– Is the aerial itself faulty?
• If the TV or aerial suffers interference
from other equipment, stripes or noise
may appear in the picture. Move any
equipment such as an amplifier, personal
computer, or a hair drier, that can cause
interference away from your TV. Or try
moving the TV. If the aerial suffers
interference from a radio tower or high-
voltage wire, please contact your local
dealer.
• If the TV suffers interference from signals
reflecting from mountains or buildings,
double-pictures (ghosting) will occur. Try
to change the aerial's direction or replace
it with one with better directionality.
• Are your Colour System settings correct?
Follow the description "Colour System"
on page 26 to try to solve the trouble.
• Have the Colour and Bright-1 settings
been adjusted properly? Follow the
description "Colour" and "Bright-1" on
page 20 to try to adjust them properly.
• Videotaping teletext is not recommended
because it may not record correctly.
• When viewing images from commercially
available video software products, or
videos from videotapes which have been
recorded improperly, the top of the image
may be distorted. This is due to the
condition of the video signal. There is
nothing wrong with the TV.
Poor sound
• Have you adjusted Bass or Treble
properly? If not, follow the description
"Bass" or "Treble" on page 22.
• When TV channel reception is poor, it can
be hard to hear stereo or bilingual sound.
In this case, follow the description
"Sound Mode" on page 22 to hear the
sound more easily by changing it to a
mono sound.
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