AOC A42W64AT4 user manual Troubleshooting, No Colour,Normal Sound, Normal Colour,No Sound

Page 17

Troubleshooting

SymptomsChecks

Picture freezes in antenna mode. The TV does not react to remote controller commands.

Picture breaks up in DVI mode, especially when a set top box is connected.

The picture is jerky or is

corrupted (multiple small square

boxes seen) in ATSC mode.

Some channels are missing

/ are not found.

No Picture, No Sound

Interference,Noisy

Distorted picture,Noisy

Please ensure the antenna is properly connected.

Please switch off the mains and switch on again.

Re-install the channels if needed.

The TV is trying to read the HDCP code sent by the set top box.

Please switch off the set top box and switch on again.

The signal could be weak. Check the DTV signal via Menu --> Setup --> DTV Signal.

Adjust the direction of your antenna to improve the signal. Re-install the channels if needed.

Press the channel number to check if the channel exists, if yes, go to the Manual Channel Set Menu (Menu-->Setup--> Manual ch set), and add the channel.

Go to the Setup Menu (Menu-->Setup) and install the channels again, searching Air/Cable as appropriate.

Check the power cord and power outlet.

Check whether the TV power switch is on.

Verify the front panel LED is showing blue color.

Check connections for the selected input source.

Verify that external signal for the selected input is active.

Check Video/Audio settings.

The signal could be weak. Check the DTV signal via Menu --> Setup --> DTV Signal

Adjust the direction of your antenna to improve the signal Re-install the channels if needed.

Check antenna connection, aerial location, and direction.

Check and relocate nearby electrical appliances.

Check fluorescent lights.

Check cars/motorcycles.

Check antenna connection, aerial location, and direction Re-scan Channels.

Check whether colour setting is at minimum.

Adjust video menu picture settings or reset to default.

No Colour,Normal Sound

Check audio input connections.

Check whether TV audio is in MUTE mode.

Adjust audio volume to audible level.

Normal Colour,No Sound

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Contents USER’S Manual Content Important Safety Instructions Precautions and Reminders Precautions and Reminders Features and Function CH + VOL + Front Panel Control③- VOL + CH +Basic Installation Connection to other equipment DVI-D SUB 15 PinRemote Control Function OSD Menu Descriptions Audio Language OSD Menu DescriptionsWhite ScreenPress Enterto white screen  Ntsc TV Specification SpecificationsNormal Colour,No Sound TroubleshootingNo Colour,Normal Sound Some parts Screen do not light up After-images appear DVDTech Support