Question about Toshiba 15.0" TFT Laptop LCD Screen

1 Answer

Laptop monitor blacks out, but when you hit the toggle....

My laptop monitor blacks out (you can faintly see the desktop), but when you hit the toggle that makes it think you shut the lid and opened it, it turns back on. Sometimes it stays on for only a second, sometimes for hours. I notice that the more you open the lid, the longer it stays on. Very wierd!!! I recently bought a new power supply. Also, the battery is dead. I can only run the computer plugged in. It's a great computer otherwise and I hate to waste it for something that seems repairable. Any suggestions? It is a Toshiba 1805-s204 Thanks!!!

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 432 Answers
Re: Laptop monitor blacks out, but when you hit the...

Sounds like you need a new Switch. Oxidation has probably built up in the switch. It can be fixed. Probably shop around for a certified tech who can replace it. The switch is cheap, Labor is starting around $65 - $90. You said you can faintly see the desktop. This is the invertor board inside the LCD assembly that causes this. Again if it needs to be replaced, the invertor is fairly inexpensive, labor isn't. The technician that ckecks out the laptop can determine what it needs. Yea, your right, it is a good laptop and it is worth fixing. Just a heads up, if the tech says you need a new motherboard, he's lying, find another tech.

Posted on Jul 03, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Can only faintly see black screen

inverter is bad..
if screen has a little white 2 pin jack, which plugs into a little board
then its that little board is bad .if it has one gold jack
alone and plugs in at bottom of screen , then its screen bulb bad
new screen !!!

Jan 19, 2014 | HP PAVILION G7-1219WM Laptop Screen 17.3...

1 Answer

My toshiba l355d black screen all fans and lights are working

There are several reasons that your Toshiba laptop screen may not come on, even if the laptop appears to be running, and several options you may try to get your screen back up and running without an expensive service call.

Common causes for a blank screen include a backlight that is turned off, a display toggled to an external monitor and improper shutdown errors.

To avoid blank screen errors after your current error is fixed, make sure to follow all instructions in your user's guide to care for your Toshiba computer.

Shine a flashlight directly at your screen and look for an image.

If you see one, this means the backlight on your laptop is off but the screen is still working. This backlight normally turns off only when your screen is closed.

Look for a small metal or plastic pin near one of the screen hinges.

The screen pushes this pin in when it is closed, so if the pin is stuck in the screen closed position, the backlight will remain off.

Tap the pin several times to release it.

You may need to use a small object, such as a pencil tip or straightened paper clip, to reach it on some models.

Monitor Toggle

Press and hold down the "Fn" key if you do not see an image when you use the flashlight.

Tap the "F5" key several times while the "Fn" key is pressed.

This will cycle your screen through the various options that toggle the display to an external monitor.

Attach an external monitor, restart the computer and try this method again if no image appears on the laptop screen.

Click "Start," "Control panel," "Hardware and sound," then "Device manager" using the external monitor if you get an image there but cannot toggle the image back to your LCD.

Select the "Monitor" option to expand your selection and select your LCD monitor from the device list.

Click the "Driver" tab and select "Update" to update the driver, as this error is likely caused by a software driver error.

Force Restart

Press and hold the power button until the computer shuts down completely.

Check the indicator lights at the edge of your laptop to see if the computer is truly off or if it has simply gone into hibernation mode.

If it is off, all lights will be off except the battery-related lights if you have a charger plugged in. In hibernation mode, the power light will blink slowly.

Press the power button to restart the computer again after leaving it off for 15 to 20 seconds. This may fix the problem.

If the blank screen returns or you get a flash of images and then a blank screen, move on to the next step.

Force Power Down

Unplug your laptop from the power source.

Remove the battery by pressing outward on the battery latch and pulling the battery unit completely out of the computer.

Press the power button several times to completely discharge the computer.

Replace the battery and plug the computer back in after about 30 seconds.

Press the power button to turn on the computer.

If you get an error screen upon startup, choose to restart Windows normally.

This error is caused by improper shutdown procedures.

Hope this helps

Nov 03, 2012 | Toshiba Satellite L355D-S7901 Series...

1 Answer

How to connect an external monitor when your screen stay whiteMy screen stop working and i don`t see to configure external display!

Connecting an External Monitor or Data Projector
You can switch to an external monitor or data projector by two methods. 1. Connect the external monitor to the laptop's video port, power up the external monitor first and the laptop. The video information will automatically switch to the external monitor. 2. If you power up the laptop first then you can switch the video output to the external monitor by pressing the Fn key and one of the Function keys, depending upon your make and model laptop. You can also toggle between the external monitor or both LCD screen plus the external monitor or back to LCD screen only by pressing the Fn key plus one of the function key. Here is a list of key combinations for some of the laptops :- IBM ThinkPad = Fn + F7 HP and Compaq = Fn + F4 Toshiba = Fn + F5 Dell = Fn + F8

Sep 05, 2012 | ASUS M51SN-A1 LAPTOP LCD SCREEN 15.4" WXGA...

1 Answer

My laptop is installed in my port replicator; I also have a Dell monitor plugged in to the port replicator. For some reason, after having to re-boot my computer, the output is appearing on my laptop screen...

Press Fn+F10 to toggle the display back and forth on the laptop screen and external monitor. Pressing the keys a third time would close the display on both displays. Thanks, Abhishek.

Mar 09, 2010 | Toshiba Advanced Port Replicator III...

1 Answer

Black screen

take a flashlight and look at the LCD screen and see if there is a faint picture to it. if there is, its a bad backlight.

if no picture you can hook an external monitor to it and switch the mon out to the external. usually this requires a FN key + monitor select function key pressed at the same time.

Aug 06, 2009 | UltraLast FOR HP PAVILION ZE 4000/5000...

2 Answers

Laptop to pc monitor

Connecting the laptop to an external monitor hooked uip to the VGA connector at the back of the laptop cannot damage the laptop, even if the monitor is connected to a different power supply, as on the VGA port and cable there is not high voltage being carried.

Apr 05, 2009 | Laptop Parts & Accessories

1 Answer

Power on no display

look at the keyboard for a fn key and another key that looks like a monitor. hit them together to make sure it hasn't been toggled to the external monitor

Mar 13, 2009 | HP Laptop Parts & Accessories

1 Answer

Laptop screen does not work when plugged into projector

If you connect a laptop projector or external monitor before you boot up your laptop, the video most likely will go directly to that external device. To have both the laptop LCD and projector you will need to press the Function key that has the monitor/laptop symbole (this key will be a dual function key and you will need to press the Fn key first and then the Function key with the monitor/laptop symbole. This Function can be any key between F3 and F12, it depends on the brand of the laptop.
When you press this key it will toggle between
LCD only
External monitor/projector only
or both LCD and external monitor/projector

Nov 27, 2008 | Laptop Parts & Accessories

1 Answer

No display on laptop screen

Have you tried presseing your function key and F2? This will toggle your displays on and off. It is generally used for when you have an external monitor and would like to switch video between the monitors.

Feb 09, 2008 | Sharp 12.1 in. XGA TFT Active Matrix...

Not finding what you are looking for?
Laptop Parts & Accessories Logo

Related Topics:

272 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Laptop Parts & Accessories Experts


Level 3 Expert

18258 Answers

Prashant  Sharma
Prashant Sharma

Level 3 Expert

1127 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Toshiba Laptop Part and Accessory Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides