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Additional preparation, Troubleshooting – JVC AV-20NN14 User Manual

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Additional preparation

The illustrations shown in this section are for AV-21YN14 only, which are used for explanation purposes.
Your TV may not look exactly the same as the illustration.

Before connecting
• Read the manuals provided with the devices

for the proper connection.

• Turn off all the devices including the TV.
• Note that connecting cables are not supplied.

OK

MENU

CHAN

VIDEO AUDIO

IN (VIDEO-2)

VIDEO-1

INPUT

VIDEO

AUDIO

OUTPUT

Front of the TV

Rear of the TV

VCR (for playing)
DVD player
(Composite signals)

Headphones

VCR (for recording)

Camcorder or TV game

Troubleshooting

If a problem occurs when you are using the TV, check the following troubleshooting guide before
calling for repair.

No picture,
no sound

Snowy picture

Stripes appear
on the picture

Double-pictures
(ghosting) occur

Poor picture

White and bright
still image look as
if it were colored

Top of the image
from software
products or video
tape is distorted

• Deactivate the BLUE BACK function

if it is turned on.

• Check the antenna cable and its

connection with the TV.

• Interference occurs caused by other

devices such as an amplifier,
personal computer, or a hair drier.
Move such devices away from your
TV.

• Interference occurs caused by

signal reflecting from mountains or
building. Try to adjust the antenna
direction or use a better directional-
ity antenna.

• Choose the appropriate color

system. Refer to “COLOR SYSTEM”
on page 8.

• Adjust the COLOR or BRIGHT

setting. Refer to “Adjusting the
picture - USER” on page 8.

• Inevitable phenomenon due to the

nature of the picture tube. This is
not a malfunction.

• This is due to the condition of the

video signal whereby the image
was not recorded properly.
This is not a malfunction.

Cannot operate the
remote control

Cannot operate the
menus

Cannot operate the
front control
buttons

TV turns off
suddenly

Color patches
appear at the
corner of the
screen

Image takes a
short period to be
displayed

TV emits a
crackling sound

Feel a slight
electric shock
when touching the
TV screen

• The batteries may be exhausted.

Replace with new batteries (see
page 6).

• Ensure that you are operating the

remote less than seven meters from
the front of your TV.

• Press TV/VIDEO button to return to

TV mode and try operating the
menus.

• Deactivate the CHILD LOCK

function if it is turned on (see page
11).

• This may due to the AUTO SHUT

OFF function is activated. Press the
POWER button to turn on the TV.

• This may due to a magnetized

device such as a speaker near to
your TV. Keep the device apart
from your TV. Alternately, you can
also use the magnetically shielded
speaker.

• A short periode of time is required

to stabilize the image.
This is not a malfunction.

• This is due to a sudden change in

temperature and it is not a
malfunction. If the crackling sound
is too frequent, request your service
technician for inspection.

• This is due to the static electricity

of the picture tube and it will not
harm the human body. This is not a
malfunction.

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