Please check for causes of problems in accordance with the following chart before contacting
any maintenance personnel.
Cannot power on
Please make sure the well connecting of power cord
No sound
Please make sure the well connecting of audio cord
Check volume
Volume too low
Check volume
If volume is still too low when adjusting volume to maximum,
please check whether the input device is well set
Input antenna damaged or not well connected
Remote control failure
Check whether remote control battery used up
Whether battery installation is correct
Whether obstacles exists between remote control and the
unit's receiving window
Check whether receiving window has strong light
Symptom
Causes and Correction
Symptom
Causes and Correction
Black screen, power
indicator light off
Check whether power cord is well connected, and whether
this unit is power on
Check whether the signal cord of input device is well
connected
Check whether input device is power on
Check whether the input device signal is in this unit's
specification
Check computer output mode: control panel-display-setup
If the setup does not accord with this unit's specification,
please change the display setup
Hor scanning frequency: 30
K
Hz 75
K
Hz
Image display flicker,
unstable
~
Ver scanning frequency: 50 Hz 75Hz
~
DISPLAY TROUBLESHOOTING
SOUND AND TV TROUBLESHOOTING
Snowy picture
Make sure there is nothing plugged in the headphone jack
5
1
TROUBLESHOOTING
Summary of Contents for 22LED3305TD
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