Question about Syntax LT30HV 30 in. HD-Ready LCD Television

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Have power sound,but no picture - Syntax LT30HV 30 in. HD-Ready LCD Television

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  • davis4844 Apr 25, 2010

    seem to have a dull glow,then when the ligt hit look as doe i can see some shadow like move ment not sure

  • davis4844 Apr 25, 2010

    i cant decide i accept what i can see

  • davis4844 Apr 25, 2010

    what is my soulution i am still not sure what is the problem

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Sounds like you have the inevitable backlight inverter/t-con board failure. Turn on the set and darken the room
1) See if you notice a dull glow on the screen If you see a glow then the backlight inverter is functional and t-con board, also known as video driver board is dead
2)If there is no glow then take a torch light. Flash it on the screen from a close distance such that the light travels down the screen Try it from different angles and see if you notice a dull picture. If you see the picture then the t-con board is functional but the backlight inverter board is dead.

Please post back with your observations so that we can proceed accordingly.

Sai.

Posted on Apr 25, 2010

  • eagle338
    eagle338 Apr 25, 2010

    If you can see the glow then it is confirmed that the backlight is functional. We have to find the t-con board for your set. Hope its not integrated in the panel which some manufacturers do. Take off the back cover and the metal plates at the center. The see if you can find a board that looks like this one

  • eagle338
    eagle338 Apr 25, 2010

    If the t-con is functional then you will see a clean image for the backlight is functional. So I am sure its the t-con board Read my last post for instructions on finding it.



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Hi again


yes 3x its lamp cover no doubt. ballast supply will give different error on this unit. this should help hdtv man

Diagnostic Item
Description
Number of times
STANDBY or LAMP LED
lamp flashes
Probable Cause Detected Symptoms
Lamp cover error 3 times - Lamp cover is not fastened securely - No picture/No sound
Fan error 4 times
- Fan1-4 Power is not supplied.(G2 board)
- Fan connector is not seated securely
- Fan caught wires or harnesses
- No picture/No sound
Temp error 4 times
- Internal temperature is too high
- IIC-E line connector is not seated properly
(WE:H3 board, WF/XS:H4 board)
- No picture/No sound
Lamp driver error 5 times - Lamp driver defect - No picture/No sound
Low B error 6 times -No "DD 6V " output (G1 board) - No picture/No sound
Audio error 7 times
- Short-circuit of Audio power supply line
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D-OVP error 8 times
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ATSC-OVP error 10 times
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Lamp error LAMP-LED is ON. - Lamp is dead - No picture/No sound

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