When You Have Trouble; Troubleshooting - JVC LT-26DR7BJ Service Manual

When you
have trouble

Troubleshooting

Severe noise or
snow
 Is the TV connected correctly to
the aerial?
 Change the direction of the aerial.
 Is the aerial or its cable
damaged?
Consult your retailer

Patterns, stripes
or noise
 Is the aerial receiving interference
from high-voltage power lines or
wireless transmitters?
Consult your retailer

 Are connected devices too close
to the TV?
Insert the minimum distance

between the aerial and the
cause of interference until no
interference
Ghosting
(Doubling of images)
 Are you receiving interference
from signals reflected off
mountains or buildings?
Adjust the direction of your

aerial, or change to a
good-quality directional aerial
44
I can't turn it on!
 Is the power cord connected to the AC outlet
correctly?
The remote
control doesn't
work!
 Are the batteries flat?
 Are you more than 7 meters away
from the TV?
 Is the "MODE (TV, VDR/DVR, DVD, HC)" set to "TV"?
 When viewing teletext, the TV menu bar does not appear.
Depending on the stability of the signal, there may be a time

lag when changing channels.
Problem
Is the ATV reception poor, too?

Following the instructions in "Severe noise or snow"

can solve this problem.
Is there a DTV transmission tower nearby?

Not displayed
Turn "Attenuator" to "On", since the radio waves

(black screen)
are too strong.
There may be problems at the antenna, radio waves,

or the area you live in, where reception is bad.
Consult your retailer.
Remote control
Unplug TV, several minutes later plug it in again.

stops working
 Hold down "
DTV screen is frozen
simultaneously to restart.
Some functions
It is not a malfunction. Some functions (dark background)

do not work
in the menu do not work depending on the situation.
Aspect ratio changes
Press " " to return to your settings.

unintentionally
PC screen alignment
Adjust the "PC Position".

is off
Unnatural colour >>> Adjust "Colour" and "Bright-1".

Noise >>> Set to the following functions.

Picture Mode :
Poor picture quality
Super DigiPure : Max
Dull picture >>> Set to the following functions.

Picture Mode :
Super DigiPure : Min
If you connected S-Video output device, check the "S-IN" setting.

If the top of the image is distorted, check the video signal

Strange picture
quality itself.
when using an external
 If movement appears unnatural when receiving a signal
device
from a DVD player, etc. with 625p (progressive-scanning),
change the output setting of the external device to 625i
(interlace-scanning).
Adjust the "Bass" and "Treble".

Poor sound
If receiving a poor signal in "Stereo / t·u", switch to "Mono".

No sound from the
Audio signals received from EXT-5 cannot be sent to the

audio component
"AUDIO OUT" terminal.
Actions page
44
35
–
–
–
" and " " on the TV
–
20
26
35
42
Check your "Colour System".
35
Standard
42
34
Bright
42
27
–
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35
35
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45