Question about Gateway MT3705 Notebook

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My Gateway went black screen no lights what happened

I bought my refurbised Gateway 7 months ago, it went out no lights, acts like no power. Check the battery full charged, power cord has power at the end My Gateway is a MT6428 If I cut my system off or it gets locked up: I turn it back on and see all the blue lights do it's thing, the dvd, the moder makes it's normal noice, but the screen is back. It not just the back screen but the system seems not to really be on. I can put a cd in the player and it does nothing. I put another monitor to it and they both were black. I don't know what I did to get it on. I have been trying for days. I did pray and ask to please help me He did because it came up both screens. I can't turn it off. Can a system be half on and half off. What can I do? to fix this. I can take it apart but what am I look for and what do I need to replace? Thanks

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  • meteshadow May 11, 2010

    it looks like mainboard issue.



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I don't know exactly what's going on, but I'm going to give you some basic guidelines to help you troubleshoot this.

First of all, it may be of little use in this situation, but here is the basic component replacement manual: 8512061 - Component Replacement Manual . Keep this PDF handy for reference purposes. Other documentation for your model can be found on the Gateway site as well.
I suspect that this is due to one of two things: either video or power.
While I find it unlikely, you could have a bad video controller (built onto the mobo), a bad cable connector, or a bad FL inverter. The best online guide for fixing your own video problems is here:

One post on the same site refers to a similar Gateway model and implicates either the power jack or the mobo: See if the power jack (where you plug in your AC adapter) seems loose. If so, you could have a bad power jack connection, which would explain the off again/on again nature of all this, though typically you would eventually end up with a depleted battery.

This link illustrates a Toshiba model, but the principle is still the same:

I it IS your mobo and if you are comfortable doing it yourself you can probably find a replacement mobo online.

Good Luck!

Posted on May 29, 2009

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It might be the issue with RAM so please refix it or replace.

Posted on May 29, 2009


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Inverters are relatively inexpensive ,and easy to replace. You could ven do it yourself if you have a little skill at disassembly / re-assembly. Tell me the model number of your laptop and I can help you more

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Hi flady_98,

You don't specify model, so what follows is fairly generic. If you can provide more details, perhaps I can too.

If it's booting (start-up chimes/sounds), then I'd suspect the display (either the back-light, or perhaps the inverter/controller circuit board). Backlights require (in my experience) replacement of the display, likely more than the value of the laptop if it was a refurb (~$500 and up in my exp.). Inverter boards are less spendy, but you have to get the right one, and get it installed (how tech-savvy are you?)

If it's not booting at all, (don't hear the hard drive spooling up, etc), then we start looking at power supply issues and go from there. But I really need more details.

If I can be of further assistance, let me know, and include as much detail as possible (you should be able to load digital pictures onto this space using the toolbar above).

If this solves the issue, please rate it accordingly.

Thanks in-advance for using,


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