JVC AV-21MT16 CRT Television User Manual


 
20
Troubleshooting
If a problem occurs when you are using the TV, check the below
troubleshooting guide before calling for repair.
• No picture,
no sound
• Deactivate the BLUE BACK function if it is turned on.
• Snowy picture
• Check the aerial cable and its connection with the TV.
• Stripes appear on the
picture
• Interference occurs caused by other devices such
as an ampli er, personal computer, or a hair drier.
Move such devices away from your TV.
• Double-pictures
(ghosting) occur
• Interference occurs caused by signal re ecting
from mountains or building. Try to adjust the aerial’s
direction or use a better directionality antenna.
• Poor picture • Choose the appropriate color system. Refer to
“COLOR SYSTEM” on page 9.
• Adjust the COLOR or BRIGHT setting. Refer to
“PICTURE SETTING” on page 10.
• White and bright still
image look as if it were
colored
• 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
• This is due to the condition of the video signal
whereby the image was not recorded properly. This
is not a malfunction.
• Poor sound • Adjust the sound frequency properly. Refer to
“EQUALIZER” on page 13.
• Stereo or SAP sound
is unclear
• TV channel reception is poor. Change the stereo/
SAP mode to mono sound (see page 13).
• Cannot operate the
remote control
• The batteries may be exhausted. Replace with new
batteries (see page 7).
• Ensure that you are operating the remote less than
seven meters from the front of your TV.
• 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 (see page 15).
• Color patches appear
at the corner of the
screen
• This may due to the magnetized device such as a
speaker near to your TV. Keep the device apart from
your TV. Alternately, you can also use the magnetic-
shielded speaker.
• Picture is tilted
• This may due to the earth magnetism. Refer to
“PICTURE TILT” on page 11 to correct the tilt.
• Image takes a short
period to be displayed
• Image required time to stabilize before display. This
is not a malfunction.
• TV may emitted
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.
• After you connect the
signal to VIDEO-2 and
playback VCR or DVD
Player, the Auto Detect
does not work.
• Please check that the AUTO SIGNAL DETECT
function is on or off.
• Press button (VCR or DVD Player) to turn the
machine off and turn it on again; do not turn the
machine off and on suddenly.
• Inspect the video cable connection on VIDEO-2 that
they are connected properly.
• When you are watching
another channel that
is not VIDEO-2, AUTO
SIGNAL DETECT
works while VCR or
DVD Player was on.
• Inspect the video cable connection on VIDEO-2 that
they are connected properly.
• In a certain VCR or DVD Player, the function might
operate by the discontinuity of the signal.
While you are
watching TV on the
other channels, AUTO
SIGNAL DETECT
works when you press
1, 7, 3, ¡ or 8
on the front panel of
VCR or DVD Player.
• In a certain VCR or DVD Player, the function might
operate by the discontinuity of the signal.
• After TV was on,
AUTO SIGNAL
DETECT works.
• Video signal from VCR or DVD Player cause the
function runs properly to indicate that there are video
signal on VIDEO-2 channel.
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