Question about LG 42LC2D 42 in. LCD HDTV

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LCD LG42LC55 TV switching OFF

I have the fault of it switching off every 20-30 minutes, and I have swapped the power assembly board EAY34797001, but the fault remains.
Any ideas?

The TV is a LG 42LC55

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THIS IS CAUSED BY THE MAINBOARD AND NEEDED TO BE REPLACED.

Posted on Nov 30, 2008

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Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

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Standby Indicator flashing SONY KD-32NX100UWhen I turn the TV on the TV goes straight into standby red light, I press the on button on the remote and the TV comes on for about twenty seconds then it...


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Ensure also that the fault is not coming from a faulty receiver box sending
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Try first leaving the TV power cord unplugged for some times, let say one hour or so.

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All: Appliance parts, electronics parts & more from PartStore.com

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On LCD Payparticular attention at inverter and power board, power board can beinspected looking for bulged or leaking capacitors, then tested with amultimeter. The inverter is more difficult to test , there is need toread voltages, should be done by a tech. Also the LCD controller board can cause same problem

On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.

On Rear Projection : check lamp, lamp ballast, power board, and convergence.

On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.

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