Troubleshooting

Please check for causes of problems in accordance with the following chart before contacting any maintenance personnel.

DISPLAY TROUBLESHOOTING

Symptom

Causes and Correction

 

 

 

Check whether power cord is correctly connected, and

Black screen, power

whether this unit is in power on.

 

indicator light off

Check whether the signal cord of input device is correctly

 

connected.

 

Check whether input device is in power on mode.

 

 

 

Check whether the input device signal is in this unit's

 

specification

 

 

Image display flicker,

Check computer output mode: control panel-display-setup

If the setup does not accord with this unit's specification,

unstable

please change the display setup

 

 

 

 

Hor scanning frequency: 30kHz ~ 75kHz

 

Ver scanning frequency: 50 Hz~75Hz

 

 

SOUND AND TV TROUBLESHOOTING

Symptom

Causes and Correction

 

 

Cannot power on

Please make sure the power cord is connected correctly.

 

 

 

Please make sure the audio cord is connected correctly.

No sound

 

Check volume.

 

 

 

 

Make sure there is nothing plugged into the headphone jack.

 

 

 

Check volume.

Volume too low

 

If volume is still too low when adjusting volume to maximum,

 

 

please check whether the input device is correctly set.

Snowy picture

Input antenna damaged or not correctly connected.

 

Check whether remote control batteries are functioning.

 

Check the battery installation is correct.

Remote control failure

Check whether an obstacle is between the remote control and the

 

unit's receiving window.

 

Check whether the receiving window has a strong light.

 

 

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24" HD Ready 1080p DVD LCD TV User Guide

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Technika LCD24-620 manual Display Troubleshooting, Sound and TV Troubleshooting