Laptop screen gone black.

tightbarsteward

Used my laptop this morning & it was fine. Now when I switch it on the screen remains black. Although if you look at it very closely, you can just make out windows going thru POST to the login screen.

Anyone any idea's? I have managed to fix the keyboard on it before which was a loose connection so hopefully with a bit of guidence from someone I could have a crack at sorting the screen too.

albertross_2

lcd backlight probably

Browntoa

yes, LCD backlight or inverter, means taking the thing to bits

Browntoa

http://www.laptoprepair.co.uk/how-to-repair-backlight-inverter.htm

niccy

hi, i've got the same problem,although it seems an intermitant fault

However does anyone know how to pinpoint problem i.e. is it the inverter or backlight ?

tightbarsteward, i think it is fixable,although if you ask a shop to do it ,they might charge £100 +

d.i.y. maybe £30

mine is a dell inspiron 8600

libra10

tightbarsteward wrote: »

Used my laptop this morning & it was fine. Now when I switch it on the screen remains black. Although if you look at it very closely, you can just make out windows going thru POST to the login screen.

Anyone any idea's? I have managed to fix the keyboard on it before which was a loose connection so hopefully with a bit of guidence from someone I could have a crack at sorting the screen too.

We had exactly the same problem earlier today after OH decided to vacuum clean and blast with air compressor, hoping to quieten down a noisy fan.

Not recommended!

We checked the battery and hard drive were secure - they seemed fine so don't think that was the problem. Then we powered up laptop in safe mode (by pressing F8 key repeatedly), then managed to do a restore. Start, Programmes, System Tools, Restore. Restored to an earlier date and screen back to normal.

Hope this helps a litte, good luck

niccy

tried system restore on mine , no luck.
so does anyone know how to diagnose either backlight or inverter

unrich

You can confirm it is the backlight that has failed. (or the inverter that powers it).

Get a torch, prefereably with a dark/metal body.
Hold it right up against the screen, switched on.

Whilst the laptop is booting or doing stuff look for the screen changing in the light reflected off the TFT/LCD surface.

You should be able to make out text changes whan the laptop is booting or see the start menu appear when you press the windows button.

Its a little tricky but knowing the problem may help reduce quotes or allow you to have a go yourself.