Question about Gateway MT6451 Notebook

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New laptop lcd display not working

I just bought a Gateway MT6451 with a broken lcd. Ordered a new one, installed it and nothing. So I put the old one back in and that works. So I decide to test the inverter and backlight, both work. I then unlug the broken display backlight but leave the video cable hooked to the bad display, hook the new display's backlight to the inverter. power up... backlight works...so while the laptop is on I unplug the broken lcd video cable and plug it into the new one...it worked. But only till I reboot. I did it like 6 time and it worked that way each time. Oh and the vga and svideo ports work also. Anyone know why its not turning my new lcd on?

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  • arj1231 Feb 18, 2009

    I tried the function keys no video at all, no image on screen. I even did the flashlight thing.

    As far a s the model numbers they are suppose to be compatible. both are LTN154X3, but my original read LTN154X3-L03 and the new one is LTN154X3-L0D. I cant figure it out so I ordered a new screen again, but this time I ordered the same serial#, just to be on the safe side. I'll keep trying till my new one arrives. thanks

  • Chris Hingee
    Chris Hingee May 11, 2010

    Boy have you got a strange one.

    Have you tried using the function key that switches between the LCD and the video output?

    Do you see a slight video image on the new LCD when you boot up (ie the backlight didn't switch on)?

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Check all usb connections i just fixed a emachine that seemed to boot up but no display would show lcd or ext. so i got to looking and one off the usb ports was broke and bent downt into the opening and shorting out when i removed it and turned back on it started booting up as normal

Posted on Apr 01, 2011

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Check the panel to make sure the panels are the same model number there are more then one part number for gateway lcds for your model and if your laptop uses the xga screen and your not replacing with the correct panel then you will get the problem you are seeing now.even thought the inverter and back light are the same the panel are very differant.

Posted on Feb 18, 2009

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