Replacment Screen Problem

HTB

A friend asked me to replace a screen on his Toshiba Equium.

Simple enough, 15.4" Glossy screen. Got a screen for him and installed it in the laptop. Fitted no problem.

The bad bit is that the screen appears very dark. You can see everything but only if you look at it with the light in the right direction.

Ok so I think the invertor is gone as well. I put another invertor in and still the same. The original screen did work before I replaced it. you could only see the top half above the crack but you could see it.

So I put the original screen back in and it too is now dark.

Im stumped at this stage.

Any ideas folks.

Allyall

Try the LCD inverter cable.

The Toshiba Equium has a few display problems, and the A100 series problem is in the Cable (most of the time). They are on Ebay, and has to be the exact model, cannot be one that fits, or looks the same.

The problem is well known, and affects them all the same way, but it isn't always the same cause.
Also, some of the Toshiba's that were made around the same time, have problem with power seeping in, too much power, causing them to shut down.

But there has still been no single cause for the problems being pinpointed to, or admitted to.

Can you give the model number, also if the LCD cable works, Could you reply, stating whether or not it does? Thanks..

HTB

Thank you very much Allyall for the comprehensive reply.

The model is A100-338.

The LCD cable does work in so far as it does display an image on the screen. Its just that its dark, like the invertor is gone but as I said I swapped a few similar invertors with it and no joy.

Allyall

i think THIS is what you need. They do know about it, as do some suppliers, hence the price is €34.36 + whatever P+P is. You may find it somewhere else cheaper, but it won't be a big difference.

Assuming it's all related to the power seeping into the Laptop, causing problems with the power management in the laptop, here is a fix that many in the Toshiba forums have said work for them.

Because the problem affects so many models, different fixes work for different people.
One fix (That a most people say worked for them) is to take the battery out and take the ac adapter out, so there is no power going into the laptop at all, and then hold down the power button for 30 seconds. Once you have done that, reconnect the power, and try it.

HTB

I found that one too Allyall after your first post. Ouch, expensive as you say they know they can charge that for them.

Is the power seepage issue related to what happens to the screens.

Allyall

As far as i know, the power problem affects a broad range of the Toshiba's in many different ways, but may not be the problem with your one.
I first heard of it last summer (2010), and still very little information about it. I have rang Toshiba more then once, and got very little help from them.

I posted that, because it was one possible solution, out of the thousand's i have seen, and while it never actually worked for me, i have seen posts by other people, who say it does work.

The LCD harness/cable has worked for me.

Some other "Fixes" are, to search for the screen sensor, that allows the laptop determine whether or not the lid is closed, and make sure that it is not pressed in.

Others say that using THIS on the contacts for the Inverter board worked as well. But didn't do much for me.

HTB

I have been looking at the laptop this morning trying to find the close lid sensor. Havent found it yet.

Done alot of reading online last night about these problems and as you say there is no clear solution.

I managed to get an LCD cable so we will see what happens.

Thanks again.