NO POWER
CAN'T START.
ABNORMAL DISPLAY
NO DISPLAY
SOUND PROBLEM
REMOTE CONTROL MALFUNCTION
OSD CAN'T WORK NORMALLY
No Power
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Power LED off
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Check Ac power input and the power is On?
|
No
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Power ON
|
Yes
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||
Power board output = 5V?
|
No
|
Replace the power board.
|
Yes
|
||
Check the IR board
|
||
Repalce the IR board
|
||
No
|
||
Replace Main Board.
|
Can’t start. LED
Red.
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Power board output = 24V?
|
No
|
Replace power board
|
Yes
|
||
Check the Power Key under the control.
|
Yes
|
Replace key board.
|
No
|
||
Check IR receiver is normal?
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||
No
|
||
Replace main board.
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||
No
|
||
Replace the Power Board.
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||
Abnormal display
|
||
Check the source
|
No
|
Reset the source.
|
Yes
|
||
Enter factory mode to do ‘EEPROM’ initial & Reset.
|
||
No
|
||
Check the main board.
|
No
|
Replace the main board.
|
Yes
|
||
Check the LVDS cable.
|
No
|
Replace the LVDS cable.
|
Yes
|
||
Check the panel
|
||
No
|
||
Replace the panel.
|
||
No display. [LED blue]
|
|||||
Check TV is under control and power On/Off by remote
control and power key?
|
No
|
Replace main board.
|
|||
Yes
|
|||||
Check the back light is ON?
|
|||||
Yes
|
No
|
||||
Check LVDS cable.
|
No
|
Check the B/L signal is available?
|
No
|
Replace Main board
|
|
Reinsert or replace the LVDS cable.
|
Yes
|
||||
Yes
|
Power board output = 24V?
|
||||
Panel Vcc 5V?
|
No
|
No
|
Replace the power board.
|
||
Replace main board.
|
Yes
|
||||
Yes
|
Replace the Panel.
|
||||
Replace the Panel
|
No sound or sound abnormal.
|
||
Check the audio source connection and the TV system are
correct?
|
No
|
Reinstall the audio cable of change the TV system
|
Yes
|
||
Check the TV is muted, adjust the volume of enter the menu
rest?
|
||
No
|
||
Enter Factory Mode to do Reset.
|
||
No
|
||
Check the cable between the speakers and main board is OK?
|
No
|
Replace the cable
|
Yes
|
||
Check the speaker resistance value is in spec.
|
No
|
Replace speaker
|
Yes
|
||
Replace main board.
|
Remote control
malfunction
|
||
Check the remote control battery is not properly placed or
no power?
|
Yes
|
Replace battery
|
No
|
||
Use the other remote controls.
|
Yes
|
Replace remote control.
|
No
|
||
Whether the IR board is abnormal?
|
Yes
|
Replace the IR board.
|
No
|
||
Replace the main board.
|
||
OSD is unstable or can’t work
normally
|
||
Key board connected properly?
|
No
|
Reconnect the key board.
|
Yes
|
||
Buttons are OK?
|
No
|
Replace the button function.
|
Yes
|
||
Keyboard is OK?
|
No
|
Replace the key board.
|
Yes
|
||
Enter factory mode to do Reset.
|
||
No
|
||
Replace the main board.
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