JVC GGT0079-001A-H, AV-20NN15 specifications Troubleshooting

Models: GGT0079-001A-H AV-20NN15

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Troubleshooting

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

• No picture,

• Deactivate the BLUE BACK function if it is turned

no sound

on.

Snowy picture • Check the aerial cable and its connection with the TV.

Stripes appear on • Interference occurs caused by other devices such

the picture

as an amplifier, personal computer, or a hair drier.

 

Move such devices away from your TV.

Double-pictures • Interference occurs caused by signal reflecting

(ghosting) occur

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 “Adjusting the picture - USER” on page 10.

White and bright still • Inevitable phenomenon due to the nature of the

image look as if it

picture tube. This is not a malfunction.

were colored

 

Top of the image • This is due to the condition of the video signal

from software

whereby the image was not recorded properly.

products or video

This is not a malfunction.

tape is distorted

 

 

 

• Poor sound

• Adjust the sound frequency properly. Refer to

 

“EQUALIZER” on page 13.

Stereo or bilingual • TV channel reception is poor. Change the stereo/

sound is unclear

bilingual mode to mono sound (see page 13).

Cannot operate the • The batteries may be exhausted. Replace with

remote control

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 • Press TV/VIDEO button to return to TV mode and

menus

try operating the menus.

Cannot operate the • Deactivate the CHILD LOCK function if it is turned

front control buttons on (see page 15).

TV is turned off • This may due to the AUTO SHUTOFF function is

suddenly

activated. Press the POWER button to turn on the

 

TV.

Color patches • This may due to the magnetized device such as a

appear at the corner

speaker near to your TV. Keep the device apart

of the screen

from your TV. Alternately, you can also use the

 

magnetic-shielded speaker.

Image takes a short • Image required time to stabilize before display.

period to be

This is not a malfunction.

displayed

 

 

 

TV may emitted • This is due to a sudden change in temperature

crackling sound and it is not a malfunction. If the crackling sound

is too frequent, request your service technician for inspection.

Feel a slight electric • This is due to the static electricity of the picture

shock when

tube and it will not harm the human body. This is

touching the TV

not a malfunction.

screen

 

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JVC GGT0079-001A-H, AV-20NN15 specifications Troubleshooting