Question about LG Computers & Internet
1. Take the battery out of the laptop & try to turn on the laptop using power adapter only. If the computer turns on, then the battery is defective & needs to be replaced.
2. Make sure the power adapter is not defective. Test the output voltage of the power adapter using a voltmeter. Compare the voltmeter reading to the nominal value written on the adapter or the laptop.
3. Make sure the DC jack is not loose or broken. A loose DC jack will need to be re-soldered. A broken one will need to be replaced
4. If you have another processor which is compatible with your laptop's model, try swapping processors & test to see if the laptop will work.
5. The power button could be bad.
6. The motherboard could be defective & needs to be replaced.
Posted on Sep 18, 2010
Have the same problem checked every think by the check list above
the last two part would be better to buy new simple laptop
more accurete description of the problem...
1) when I turn on the kaptop the power button lites up and the power led turns orange and the barty stayes lit orange but the wifi led turns on also orange
2) can here the cpu fan starts for a couple of seconds then stops
I checked all inter parts seems ok ... maybe circutes are fried dont know...
.... I tried disconecting the small iner battry for the bios but still no use
I need to check if the charger voltage is ok ...
one more thing ... thsi is importang i fixed some laptops with this state by changing the keyboard somtimes the customer spil liquids wich couses the system to shorten simple check just disconect the keyboard and try booting..
havent tried that yet :) I try and give you an answer... with my next post...
Posted on Aug 07, 2014
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Posted on Jan 02, 2017
You could have a faulty inverter or a CCFL lamp, To determine if you have a LCD screen, inverter or video card problem, read this and follow these instructions.
Defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp.
Connect an external monitor to your laptop and power the monitor up first then the laptop, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
for parts, repair service and DIY info.
Posted on Jun 28, 2009
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