Laptop display on briefly

[Tony D]

Toshiba laptop. The Toshiba logo comes on when booted. Then screen goes black. Computer continues to boot.

Using a flashlight to shed some light onto the screen, I can see that the graphics are working. I can see that there was a problem and Windows is trying to repair it.

I pulled the hard drive. Again, the Toshiba logo comes up and then the backlight just quits. I can see the BIOS text on the screen if I shine a flashlight onto the screen.

So it looks like the backlight is working during the POST and then it shuts down. Can this be a board problem?

btw: it's fluorescent, not LED. Maybe it's the inverter.

 

[allheart55 (Cindy E)]

If it's too faint to see, then it sure sounds like the inverter to me.
Have you tried connecting the laptop to an external monitor, Tony?

 

[Tony D]

Yes, I did try an external display. It wouldn't "wake up".

I know I have an inverter around here somewhere. Just gotta find it.

 

[Tony D]

Didn't find the inverter, but did find a display with a fluorescent backlight. Connected it to the inverter in the laptop and it's shinning brightly. Looks like a bad fluorescent tube in the display. Tried only once to replace just the tube. It didn't go well because I broke the tube. Didn't know how fragile they were. I may try again, but be more careful this time.

 

[allheart55 (Cindy E)]

Let us know how you fare, Tony.

 

[Tony D]

I now have a display on order.

 

[IceMan37]

Indeed that can be one of the downsides of laptop ownership Tony. However it helps you have the technical skills to mitigate any problem. Good luck with the new display

 

[Tony D]

New display was installed. Works well.

 

[IceMan37]

Awesome! Luckily on my two laptops (both HP Elite Books) no display issues yet. I did have an issue getting the track pad working correctly with Windows 10 though initially, but after some playing around got it working.

 

[AWS]

Now I know who to send my laptop to if the display goes bad.

 

[Mommalina]

Now I know who to send my laptop to if the display goes bad.

I see a new movie on the horizon entitled, Tony, the Laptop Guy.
Even Brad Pitt would not be right for the lead. Spread the word --
there may be a new career ahead for Tony!

 

[Tony D]

I've replaced a number of laptop display. I'm sure other techs here have done the same.
I think display replacements are only second to DC jack replacements when it comes to laptop repair.

 

[Mommalina]

Tony, your humility doesn't surprise me; you never "toot your own horn."
You are the exemplary forum moderator/member. Again, well done!