Question about Toshiba Satellite M35X-S109 Notebook

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Screen black but it powers on

Screen black on my satellite m35x-s109

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  • dobhran May 22, 2009

    Toshiba Satellite P205-S7806 laptop. Screen went black while playing a downloaded vido game. Used a flashlight and could make out some icons. Managed to change the screen background color to light orange and gave the cursor a tail to make it easier to find. Rebooted. F6 & F7 still have no effect. Ran virus scan and computer is clean. Checked and updated drivers. Hooked up to another monitor and computer is fine. Lack of LCD backlighting seems to be the problem. Though some backlighting appears for a few seconds when rebooting or other programs are loading.

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The black screen can be a result of several factors, I will try to explore some of the more common ones:

All laptops are equipped with a "fn" key on the keyboard. With this key, many of the keys on the keyboard will actually do something completely different. One of the keys (F9 on my Toshiba) will tell the computer to switch between a regular desktop monitor and the lcd screen attached to the laptop. This is the first place to look for the screen to light up.

The fn key also controls the brightness of the lcd screen. This is the second thing to adjust on your laptop. On my Toshiba, F6 makes it go dim and F7 makes it go brighter. Try these.

Lastly, it may be a hardware problem. All laptops use something called a power inverter chip to control the amount of power used by the lcd screen. It is not uncommon for this chip to need replacing. However, it may be a little tricky to install it. Usually the chip will be under the plastic trim piece around the edge of the lcd plastic bezel. This part can be found online for anywhere from 6 dollars to 60 dollars.

The other peice of hardware that may have gone bad is the lcd backlight. This component is pretty much exactly what its name implies. It lights up the back of the lcd screen. This part does not go out very often, the power inverter is more common. This part is usually more costly than the inverter as well, both in actual cost of the part and installation.

Good luck.
tony

Posted on May 19, 2009

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There are few things that could have caused your screen to go blank.
1. your screen may have gone bad. to verify this, connect your laptop to an external monitor using the RGB monitor port at the back of the laptop. if it shows, then you have a problem with your monitor else, go to number 2.

2. The memories or one of the memory cards must have gone bad. to confirm this, turn the your laptop to reveal the bottom, follow the instruction manual that came with your laptop on replacing memory (If they are not on-board), and take one memory card out and restart with the one (if you have two of them). do the same with the second one. if nothing happens, get another memory card and try it. if nothing happens, move to the next step.

3. the hard drive may have crashed or the operating system. insert your windows cd and set your bios to boot from cd. if it works, then try to run a fresh installation and see if it can detect your hard drive and the operating system installed on it. if you don't get any information about your hard drive, get another one and try to install with it. let me know what your findings are. cheers!

Posted on May 19, 2009

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SOURCE: processor upgrade in a toshiba satellite m35x-s109

A Pentium M 1.7 (SL7EP) works great and runs cooler.

Posted on Jan 31, 2011

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hi flyrech,
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http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/modelContent.jsp?ct=DL&os=&category=&moid=882437&rpn=PSA72U&modelFilter=M35X-S111&selCategory=3&selFamily=1073768663

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