System starts to boot, get windows logo, may even make it to desktop icons, enables wireless then, whamo! black screen. ntl/alt/delete MAY bring it back for 2 mins, then black again. keyboard seems fine, caps lock works fine on/off. trued func/F7, does not switch from prez output to LCD, suspect my LCD monitor is failing or cables have become loose.
First of all, you have to check whether you can see video signal with surrounding light tilting the screen.
If you can see dim image, all you have to do is replace back-light inverter or fix it. Usually, the fuse is open and you can connect it by simple soldering.
If you can't see dim image, it is another problems.
Give it a try.
I just replaced the inverter card on my T-40. This solved the problem of the screen going black after a sortly after booting.
Sounds like the display is set to turn off after a minute, go into display properties and set the display not to turn off at all
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My T40 too... seems only to happen when the laptop is jostled or if I plug in a USB device sometimes. Screen goes black and am pretty sure the backlight is off. The laptop is otherwise working, so I shut it down and reboot and the screen comes back.
The same thing happened to my T40, it got progressively worse by the way. Getting it looked at now is the best way to do it, I found tapping or full out hitting the space to the right of the mouse helpful, but I think I may have done permanent damage that way.
unifi9230 Is this an easy in and out (of the case and motherboard) change of a board? No fine pitch solder or anything? Is this the same part you used? http://www.pchub.com/uph/laptop/43-28080... Thanks, Glenn nhpcfix at yahoo
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