Question about LG Computers & Internet
Whenyou connect the power adapter into the laptop, does the power LED light up? Ifnot then - The battery adapter or the adapter's power lead or the laptop's powersocket could be faulty. Check power adapter's DCplug that connects into the laptop power socket with a multi-meter, the voltageshould be slightly higher than the voltage that is printed on the label on thebottom of the adapter. If the voltage is zero or way below the voltage that isprinted on the label then the power adapter is faulty and needs to be replaced. If the adapter is OK thenconnect it to the laptop and power it up, then look at the power/batterycharging LED light and wriggle the power plug in the laptop's powersocket. If the power/battery LED light flashes and in a certain position thisLED light stays firm, then the power socket is either faulty or it has a drysolder joint where it is connected to the motherboard. This can be repaired but itrequires the laptop to be completely dismantled to get at this power socket andrepair. If you cannot DIY then I suggest you get a quote first.
Posted on Mar 21, 2011
If you have tested your power supply cord with say a voltage meter, and it is working, then the problem lies with your motherboard. Do you have a charged laptop battery? If it powers on with the battery, then the problem is isolated to the power plug port on the motherboard.
Posted on Mar 21, 2011
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Posted on Jan 02, 2017
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If u set the lamp properly then It may cause the lamp circuit need repair.
Have you got yellow lamp indication before change the lamp? If occur then you have been late to change it. If you used it up to 2500hrs. then this problem may arise. Check those first if everything ok then may be the circuit have some problem, go to the nearest sharp authorize service center or visit website.
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