laptop screen died, any clues or fixes?

Rod924

LE
Kit Reviewer
#1
My screen started to go strange shades prior to going black. I have removed battery, then re started. The Toshiba front page opened together with black and white windows prompt for starting options from forced shut down. But that's all. Screen remains blank. Not even offering braille. Other than sticking a photo to the screen, anyone got any ideas how to fix this? Thanks
 
#2
Do you mean the screen is blank or the computer itself is not continueing past this point?

Attach it to a monitor via the monitor output, and turn on. This may show tha tthe computer is indeed starting up correctly but the monitor is dieing. Or it may show a fault on the computer.

If the screen has gone, you can purchase replacement screens. But in all fairness, it is probably cheaper to just buy a new laptop. If you get a similar one to your current machine, you may be able to just insert the HDD in the new one. Hey presto, a new laptop with no fuss.
 
B

Boozy

Guest
#3
this happened to me once...had to plug it into a monitor - the computer was still working it was just the screen had gone kaput.... the advice given to me then by computery types was that I should just get a new one which I did.

I seem to go through laptops at a serious pace...this is my 3rd now.
 

Rod924

LE
Kit Reviewer
#4
The pc is fine as I can use the old desktop monitor. But that defeats the object of a 'laptop'.
 
#5
Maybe relevant, maybe not...

I've got an Ericsson MC218 that died in the way that you describe. In it's case, it was the flat cable that linked the wotsit* to the screen that had fatigued to death. Your laptop probably won't have a similar connector, but the conductors in the hinges may be at fault and may well be significantly cheaper to replace than a screen.

*I don't know what you call it - it's the half with the keyboard on.
 
#6
next stage is to back up everything
& then look for disassebly instructions on the internet
if you are lucky the internal monitor cable may have become disconnected & can be reconnected
 
#7
this happened to mine and the local computer repair shop put in a new motherboard for £180. Probably better to get a new one if it's an old lappy
 
#8
how old is the laptop?
 
#9
I had a toshiba "satellite" laptop that did this, after a quick google I was sure it was the "backlighter" which is a bulb type thing that illuminates the screen, I took it to a toshiba specialist local to me who reckoned it was the motherboard and it would cost over £400 to repair, I stuck with the external monitor until I killed it off be knocking can of lager over it!
 
#10
My screen started to go strange shades prior to going black. I have removed battery, then re started. The Toshiba front page opened together with black and white windows prompt for starting options from forced shut down. But that's all. Screen remains blank. Not even offering braille. Other than sticking a photo to the screen, anyone got any ideas how to fix this? Thanks
Had a similar problem, tried all the diagnostics and fixes advised on here with no luck, repair shop said h/drive and invertor £200+
bought a new one, the brother in law loves to take things to bits, he found that a cable located in/on the hinge was faulty £10 !!!!
Do the manufacturers preload faults do you think, set to go at different periods of use, 6. 12 .18 mths or is it just me being unlucky.
 

jarrod248

LE
Gallery Guru
#11
I'd never get another toshiba laptop the dead screen, exploding batteries and dead keyboard oh and replacement fan. I had two of them, never again.
 
#12
I've been fixing computers etc for longer than I care to remember, so here's a tip for a possible quick fix. Open the laptop, and turn it on. Wait a few seconds and grasp the "base" ie, the bit with the keys on it. Now, grab the top of the screen and pull it down (not all the way so that the screen latches on the base) and flap it back and forward kind of briskly but not too hard about 10 times. While you're doing this, keep an eye on the screen for signs of life. You'd be surprised how often this works.

Also, make sure you haven't turned the built in screen off. This is usually achieved by pressing the "Fn" key along with one of the "F" keys (the ones along the top labelled F1, F2 etc) There will be secondary functions on these which are activated by pressing and holding the Fn key along with one of these, which will have a pic of a laptop and monitor on it, or possibly a lightbulb or projector.

Looking at one of my Toshiba laptops, the key sequence appears to be Fn+F2
 
#13
+1 to Saucedoctor's ideas - I can vouch for this; it's really just a crude test to see whether there's something wrong with either the inverter or CCFL tube.
Neither of these parts should be expensive (compared to a new machine at least) and a good PC repair chap should be able to do it. Generally, good repairmen in cases like this will have glasses, beards and soldering irons on show, rather than be 17 and working in high street shops :-D

Here's a few pages devoted to replacing these parts - they may come in handy so you can sound like you know a bit about what you're talking about:
  1. Laptop Backlight Test - Testing A CCFL LCD Backlight Tube
  2. Toshiba Laptop Screen Repair - Illustrated how to replace a laptop backlight and inverter
  3. How to replace CCFL tube (backlight lamp) in Sony laptop LCD screen >> Inside my laptop
 

Rod924

LE
Kit Reviewer
#14
I've been fixing computers etc for longer than I care to remember, so here's a tip for a possible quick fix. Open the laptop, and turn it on. Wait a few seconds and grasp the "base" ie, the bit with the keys on it. Now, grab the top of the screen and pull it down (not all the way so that the screen latches on the base) and flap it back and forward kind of briskly but not too hard about 10 times. While you're doing this, keep an eye on the screen for signs of life. You'd be surprised how often this works.

/QUOTE]

ok,thanks for the above. It showed life, albeit brief and poor in colour and brightness, but was able to see the box requesting password to the laptop. So, what now??? Btw, many mucho mayo for all advice given to date
 
#15
I suspect it means that you have a dirty/dodgy connection or that the insulation on the fine wires leading from the base to the lid has worn, causing a short circuit. Moving the lid has either cleaned a bit of the muck away or has moved the wires into a position where they're less in contact.

The other thing it means is that when you take the laptop to be fixed and are told that it's going to cost you several hundred quid for a motherboard or a screen, you can show them two fingers and announce loudly in front of any other customers that they're a bunch of rip-off merchants.


Then again, does chardy's 3rd link apply:

Backlight failure symptoms:
1. Your laptop starts with a reddish tint on the screen and after a while the image returns to normal. Most likely this is CCFL tube failure.
2. White color on the screen has a red tone. After a while the backlight turns off. You still can see the image on the screen, but it’s very faint. Most likely this is CCFL tube failure.
3. The backlight randomly turns on and off without any pattern. This could be inverter failure or CCFL tube failure.
4. Your laptop starts without backlight. Everything works fine with an external monitor, but the image on the laptop screen is barely visible. This could be inverter failure or CCFL tube failure.
5. Your laptop starts without backlight. You can light up the screen for a while if you tap on the lid close switch. This could be inverter failure or CCFL tube failure.
 
#16
Like Puttees says (among other things) it may just be a duff connection. I fyou post the exact model number I may have a schematic and/or a photo of the connections.

The benefits of over a decade of collecting crap and not throwing much away!

SD
 

Rod924

LE
Kit Reviewer
#17
Like Puttees says (among other things) it may just be a duff connection. I fyou post the exact model number I may have a schematic and/or a photo of the connections.

The benefits of over a decade of collecting crap and not throwing much away!

SD
this is an equium a200. I have connected it to external monitor and the picture is fine; so not the mother board or graphics card. I have removed the 4 screws to access screen. Top is black wire, right and white wire, left; the solders are intact. At the base there is a long Green component; white and pink wire with a plug in to this on the right.on the left is a grey covered thickish covered nylon/fabric cable coming from laptop to screen on the left. What is this bigger held in by two screws??
 
#18
on the left is a grey covered thickish covered nylon/fabric cable coming from laptop to screen on the left.
If I were you, I'd switch the laptop on and see what happens to the display while I jiggled this wire about, pushing it, pulling it, pushing the ends together, pulling the ends apart, twisting it and bending it in every direction.

But I'm not you and take no responsibility for anything that may happen to you or to your laptop (or house and occupants, for that matter).
 
D

Deleted 20555

Guest
#19
Sounds like the inverter - find a small local computer repair shop and they will be able to fix it for about £80 or so - stay as far away from PC World as possible.
 
#20
Sounds like the inverter - find a small local computer repair shop and they will be able to fix it for about £80 or so - stay as far away from PC World as possible.

Wrong having been bitten by Pc World, everyone should visit with petrol and matches. Staff should be locked in before applying the match.
 

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