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NO display on laptop lcd

When i turn on the laptop, the power button is on. but there is nothing showing on the lcd. wait for a few minutes but still nothing shows up.

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Well this can be two things your LCD screen itself or the graphics card. Easy way to check is to hook the laptop to an external monitor and see if the image comes up. If it does then your lcd screen needs to be replaced,if it does not then its your graphics card.

Posted on Feb 11, 2009

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1. Immediately run PSA. (Make sure laptop is connected to AC Adapter. Leave laptop off. Press and hold on the Fn key then press power button once).

2. Just wait for about 3 to 5 minutes then you might will hear beeping sounds (no display with beeping sounds) this means that laptop is working fine but no display. This might cause by either the video card or LCD.

3. After hearing beeps turn off laptop. (Press and hold on the power button for about 3 seconds)

4. Leave laptop off. Press and hold on the D key then press power button once. If full screen colors appears this means LCD is working fine and the problem is the video card. If no display from the LCD no colors were displayed try the test again just to make sure. If still the same no full screen colors then the problem is the LCD.

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1 Answer

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1. remove all ext peripherals
2. remove battery
3. check first the ac adapter if it has led on (make sure ac adapter is not connected to the laptop)
4. try any other wall socket check if ac adapter will led stay on
5. if ac adapter stayed on then connect to laptop (without the batter)
6. after connecting the ac adapter to laptop check if the ac adapter led turned off, if yes then check ac adapter laptop pin on the side if is loose or damage.
7. if ac adapter stayed on after connecting to laptop press now the power button on the laptop just once. check if the power led on laptop will turn on (check if power led stays on or it blinks amber)
8. if it blinks amber then remove all CRUs such as dvd drive, memory, hard drive and wireless cards. put them back one at a time. make sure you turn off laptop when putting removed hardware. this will check and isolate which causing the power led to blink.
9. if the power led stays on then turn it off again then wait a couple of seconds then press and hold on Fn key then press power button. wait for about 5 minutes while the power led is steady on, until you hear beeps once you hear beeps it means that LCD has problems. try then connecting laptop to an external monitor if it shows display there. press on Fn + F8 to toggle the display from LCD laptop to the ext monitor. if no display replace the motherboard. if it has display replace LCD.

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in case it does not stars, you may have a faulty memory ram. it needs to be replaced

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1 Answer

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1. try to connect to an external monitor using an analog video cable. monitor is on. turn on laptop after a minute press and hold on Fn key then press F8 at the same time to toggle the display between LCD to Monitor, if nothing happened do step 2.
2. turn of laptop. remove video cable. press and hold D key then press power button at the same time. this will test the LCD. check if there are colors display. if yes do step 3, if no replace lcd and lcd cable.
3. make sure laptop is off. press and hold on the Fn key then press power button at the same time to run a quick test. Even no display or anything wait for about 5 minutes check if you will hear series of beeps. If yes.replace video card if it is expansion, replace motherboard if it is integrated.

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