JVC AV-21SX17 CRT Television User Manual


 
17
REFERENCE
Troubleshooting
If a problem occurs when you are using the TV, check the below
troubleshooting guide before calling for repair.
Problem Cause / Solution Page
No picture, no sound • Deactivate the BLUE BACK function if it is
turned on.
• Choose the appropriate sound system. Refer
to “SOUND SYSTEM”.
9
12
Snowy picture • Check the aerial cable and TV connections. 4
Stripes appear on the
picture
• Interference caused by devices such as an
amplifier, personal computer, or a hair drier.
Move it away from your TV.
Double-pictures
(ghosting) occur
• Interference occurs caused by signal reflecting
from mountains or building. Try to adjust the
aerialʼs direction or use another antenna.
Poor picture • Choose the appropriate colour system. Refer
to “COLOUR SYSTEM”.
• Adjust the COLOUR or BRIGHT setting. Refer
to “PICTURE SETTING”.
9
9
White and bright still
image look as if it was
coloured
• Inevitable phenomenon due to the nature of
the picture tube. This is not a malfunction.
Top of the image from
software products or
video tape is distorted
• Due to the condition of the video signal, the
image was not properly recorded. This is not
a malfunction.
Poor sound • Adjust the sound frequency properly. Refer to
“SOUND SYSTEM”.
12
Stereo or bilingual
sound is unclear
• TV channel reception is poor. Change the
stereo/bilingual mode to mono sound.
12
Cannot operate the
remote control
• The batteries may be exhausted. Replace with
new batteries.
• Ensure that you are operating the remote
control at less than seven meters from the
front of your TV.
6
Cannot operate the
menus
• Press TV/VIDEO button to return to TV mode
and try operating the menus.
Cannot operate the
front control buttons
• Deactivate the CHILD LOCK function if it is
turned on.
14
Problem Cause / Solution Page
Colour patches appear
at the corner of the
screen
• This maybe due to magnetized device such
as a speaker placed near to your TV. Move it
away from your TV. Alternatively, you can also
use the magnetic shielded speaker.
Picture is tilted • This maybe due to the earth magnetism. Refer
to “PICTURE TILT” to correct the tilt.
10
Image takes a short
period to be displayed
• Image required time to stabilize before display.
This is not a malfunction.
TV may emit crackling
sound
• 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.
Feel a slight electric
shock when touching
the TV screen
• This is due to the static electricity of the
picture tube and it will not harm the human
body. This is not a malfunction.
AUTO SIGNAL DETECT
does not work
• Set the AUTO SIGNAL DETECT function to
ON.
• Turn the VCR or DVD Player off and on again.
• Check that the video cable connection on
VIDEO-2 is properly connected.
13
Suddenly, the TV input
changes to VIDEO-2
• Check whether the AUTO SIGNAL DETECT
function is on or off.
• AUTO SIGNAL DETECT function may work
when you operate the VCR or DVD player
even if you do not make it to playback.
13
AUTO SIGNAL DETECT
does not work correctly
• Check the video cable connection.
• Some VCR or DVD player may output the
video signal discontinuously. If this happens,
AUTO SIGNAL DETECT function cannot work
correctly.
“PLEASE DISCONNECT
VIDEO-1 CABLE!”
appears on the screen.
• Please disconnect either S-VIDEO cable or
video input cable from video-1 input.