That tells me the motherboard and video card works properly. In your case the screen lights up and is bright. However, later the same day it seems the CCFL went out all together because the screen on the laptop is very dim but you can still make out icons and wallpaper. If external video is fine, you might have a problem with the laptop screen. If you still have the same bad video, then you might have a bad screen.

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So I have a similar story to what a bunch of toshiba satellite m55-s135 wireless have posted here. I doubt that your second problem is related to the inverter board. When you have a broken screen the only way to fix it would be installing a new LCD toshiba satellite m55-s135 wireless. I cannot tell what is wrong without looking at the laptop. After that,nothing happens and any key combination toshiba satellite m55-s135 wireless does not even give the usual beeps after.

Could be bad backlight lamp or faulty inverter board. Picture was fine on top. With a bad cable you can get distortion on the screen but it would not divide the screen into 4 images.

I think that this might be a problem with my system fan, because when I use high power apps, the glitches reappear and the computer freezes.

Is there any functional difference in Inverter boards. This random fading as opposed to permanent fading has put me into total confusion. I changed the inverter and cable and no difference. It functioned for maybe 1 hour befor ethis happended.

Then I connected a cracked old screen and see dim picture. Not likely, but possible. Glyn, Make sure to install a correct video driver. Any thoughts please please please??? Toshiba satellite m55-s135 wireless, Start laptop troubleshooting with connecting an external monitor. And again, I cannot tell which one is failing. I have tried with an external screen and the banding effect does not occur. I am sure this must be possible but i am inexperienced in testing electronic components. Sounds like you have LCD screen dimmer enabled.

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There is nothing live threatening. Please also recommend a site to order the toshiba satellite m55-s135 wireless from. At the same time a thin vertical line wireldss toward the middle of the screen. Before you replace anything, try reconnecting the video toshiba satellite m55-s135 wireless connector on the motherboard.

Working on a Presario V Did you buy it from a reputable seller? Could be the motherboard failure. I also hook my laptop to an external monitor and the image was good so i know is not the Video Card. Can any plz give me the ditails of hp compaq tc lcd satrllite how to test it with voltameter?

How to test screen inverter

Let me know the model satellihe number, different models have different screens. Do you know toshiba satellite m55-s135 wireless this laptop has shared memory — part of the main memory is used for the video card? Winston, If you experience a problem with the video output on the laptop LCD screen but not on the external monitor, then in most cases it would indicate a display related issue.

Hello My question is Toshiba satellite m55-s135 wireless have a toshiba satellite laptop. Stacy, Quality is not very good, hard to see what is going on with the screen. There are two different types of backlight connector, you can see them on the picture below.

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An one more wire has 3v voltage is this Ok or my motherboard toshiba satellite m55-s135 wireless damaged. One interesting thing that I did not note before, is, when first turned on the fan comes off, then shuts off with the notebook. If one part satelite the screen is perfectly fine and the second part is not, most likely this problem is not related to the video cable.

Is there an inexpensive fix? I hope someone can tell me which inverter compatible with this series. But this one looks like a heat related issue. In this situation test the memory module toshiba satellite m55-s135 wireless I described in the situation2. The laptop is about 18 months old. Would it most likely be the inverter or the screen?

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