Question about Toshiba Satellite P105-S9722 Notebook

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My lcd screen does not come on when I start my laptop.

I have aToshiba P105-S9722 and when I turn the computer on it won't light up the lcd screen. Do I need a new monitor or can it be repaired?

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  • lukeyluke Nov 27, 2008

    Same computer, same model. previous to the screen blackout, my laptop screen was going white because it was too hot. Now, the blue light indicators in the front turn on when i boot up, but there is no sound and the screen is black. I have tried removing the battery. No luck.

  • hherro Apr 13, 2009

    i have the same problem, i think it something to do with the vga card overheating,since sometimes it works sometimes it doesn't.



  • Edwin Njuguna
    Edwin Njuguna Dec 09, 2013

    i have the same issue with my laptop when i use its charger 15v-8A, it shows black screen but all lights are on, i tried testing with a different charger it showd white screen i wonder if my charger could be bad

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  • 237 Answers

What I am hearing is that your computer turnjs on but the lcd screen is black? Can you make sure all the status lights are on? (battery, adapter, and on your laptop system.) If all the lights are on, check your lcd screen's resolution setting...Press the buttons that brightens the screen. One, two or three times should get it going. If the contrast buttons do not turn your lcd on, it could be the monitor itself. (One other thing...check for any Visible damages on the screen, ie. cracks or missing pixels (if you can see)...

Posted on Nov 17, 2008

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1 Answer

Toshiba Satellite P105-S9722 white screen on stat up


Don't assume. Diagnose.

Problem could be graphics chipset, Video Cable, screen Inverter, or LCD screen.

Graphics chipset:

1) Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port, on the laptop.
(Back of laptop - Blue)

Example of a VGA Cable, and a VGA connector, (Port on laptop),

http://en.wikipedia.org/wiki/VGA_connector

If you have a CRT type of monitor (Looks like a small TV), you can use it, or a flat LCD screen monitor with a VGA cable.

The Toshiba Satellite P105-S9722 Notebook PC, also has a DVI connector on the back of the laptop. (Next to the blue VGA port)
You can connect a flat LCD screen monitor with a DVI cable.

Example of a DVI Cable, and DVI connector,

http://en.wikipedia.org/wiki/Digital_Visual_Interface

2) Turn the monitor on. If a CRT type allow it to warm up.
Turn the laptop on.
By factory default the display should be on the external monitor.

If not;
Press, and hold down on the Fn key, (Bottom left), and tap once on the F5 key.
The F5 key is the Display Toggle-Over key.

You will see a list. It 'hot cycles' through the list, until you come to the external monitor device you are using.

http://shop.mcccomputers.com/network-modem-cards/6037-toshiba-satellite-p100-p105-p105-s6104-p105-s9722-video-board-256mb-ts15082.html

External monitor display shows no white screen?
Your graphics chipset is good.
Go on with the diagnoses.

Problem is with the Video Cable, or in the Display Assembly.
(Screen Inverter or LCD screen)

Video Cable:
The Video Cable attaches to the motherboard under the Switch Cover, and about at the F2 and F3 keys.
It then routes under the left Hinge, and up into the Display Assembly.

From there it connects to the screen Inverter, and back of LCD screen,

http://www.irisvista.com/tech/laptops/toshiba-satellite-p105/big/toshiba-satellite-p105-11.jpg


From;

http://www.irisvista.com/tech/laptops/toshiba-satellite-p105/take-apart-1.htm

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-P105-P100/remove-lcd-screen-inverter-1.htm

Due to normal opening, and closing of the laptop, the Video Cable may become pinched, and pulled on.
This can lead to a simple loose connection of the Video Cable TO the motherboard, or TO the back of the LCD screen.

(The screen Inverter connection should also be checked)

Visual inspection will NOT do. You need to physically see if you can plug the motherboard connection, and LCD screen connection in.
It could be just loose enough you won't be able to see it, but will affect the display.

Sheath of Video Cable needs to be visually inspected for signs of damage. Signs of damage to the sheath, may also mean damage to the tiny wires inside the sheath of the Video Cable.
(Stretched/Broken)

Assurance that the Video Cable is not the problem, means checking out, or have checked out, with a multimeter set to OHM's, to run a continuity check of all the wires.
('Mom and Pop' computer store. See if they will check it)

Or simply replace the Video Cable. (After you fire up the laptop, and see if loose connections was, or was not the problem)

http://www.batterysupport.com/toshiba-satellite-p105-s9722-cable-p-377633.html


(Left side connects to LCD screen. Right/Top connector goes to motherboard. Right/Bottom connector goes to screen Inverter)

Video Cable checks out OK?
Go on to screen Inverter.

http://www.ebay.com/itm/TOSHIBA-Satellite-P105-S9722-laptop-lcd-Screen-Inverter-/250759700669


The plastic thin frame in front of the LCD screen, is the Display Bezel.
The screen Inverter is behind the Display Bezel, and mounted at a location towards the bottom of the LCD screen frame.

A screen Inverter is tested with a sensitive multimeter. Read fairly expensive,

http://www.fonerbooks.com/test.htm

It is for this reason that those who do not have access to a sensitive multimeter, usually just replace the screen Inverter.
(Also low cost, and ease of access to replace)

Screen Inverter checks out OK?
Problem is the LCD screen,

http://www.amazon.com/SATELLITE-P105-S6084-P105-S9722-P200-140-REPLACEMENT/dp/B007QEEYGE


For additional questions please post in a Comment.

Regards,
joecoolvette

[ Bet it's the video cable, or screen Inverter, that is the problem ]

[ Primer:
An LCD screen cannot produce light by itself. It needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL, (Or two of them), or a series of LED's.
(Light Emitting Diode)

The Toshiba Satellite P105-S9722 Notebook PC, uses One CCFL for a Backlight.

A CCFL is a Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

Average thickness is 2mm. That is a little larger than 1/16th of an Inch.
Average length is almost as long, as the LCD screen is in height,

General example,

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

A CCFL contains -> Mercury, just like Fluorescent lighting used in homes, and businesses.

A screen Inverter is used to convert the power from the laptop, for the Backlight, and LCD screen.
90 Percent of the Time the fault is a bad screen Inverter.

Primer over.

Oct 16, 2012 | Toshiba Satellite P105-S9722 Notebook

1 Answer

MY THOSHIBA 105 S9722 POWER ON BUT THE SCREEN IS ALL BLACK


Try plugging it into a regular desktop monitor and see if it boots up.
http://www.sendnfix.com

Feb 03, 2011 | Toshiba Satellite P105-S9722 Notebook

1 Answer

I've installed Windows 7 on my Toshiba Satellite P105-S9722 Laptop - and I keep getting white screen. I updated the BIOS to 4.8 and installed 4 gb of memory. I've tried different video drivers but keep...


This laptop came with either XP or Vista on it and if you wish to use Win7 32 or 64bit you must install all of the drivers and preferably make a fresh install. There is only one video driver that will work!
To gain access to the correct drivers, go to Toshiba.com and log your laptop in. The web site will advise you on which drivers you require.
I feel sure that that is the only problem you have that is giving you this headache.
Don't forget unless you load 64bit Win7 you may not be able to utilize more that 2048 Mb of memory.

Dec 22, 2010 | Toshiba Satellite P105-S9722 Notebook

1 Answer

How to boot with flash drive in p105-s9722 Toshiba laptop


It is a long method which is being very accurately defined in this site follow it and it will create you a bootable flash drive. http://www.howtogeek.com/howto/16822/boot-from-a-usb-drive-even-if-your-bios-wont-let-you/
This is being checked by me and its good working. Site here provided is not for advertisment but for gaining you a more accurate details along with screen shot.

May 31, 2010 | Toshiba Satellite P105-S9722 Notebook

1 Answer

My monitor started showing vertical lines, first a few then half the screen. Now, half the screen is black.


Your Laptop screen has either too much of Moisture in it or the display circuit at the laptop folding place is creating issue. Please take the machine to Toshiba Service Centre and they will do the needful. Any attempts to fix the problem by yourself will worsen the problem and respond quick.

Nov 16, 2009 | Toshiba Satellite P105-S9722 Notebook

1 Answer

Toshiba Satellite P105-S9722. monitor will not


Hi,
The problem is the inverter cable or the inverter itself.

If you have any warranty left on the laptop then i recommend you take advantage of that and send it in for repair, or you can deal with this 2 ways.
Fix the problem yourself.
Remove the screen bezel (plastic screen surround), this will reveal the whole screen. At the bottom of the screen you will see an elongated piece of circuit board with wires coming from either end covered by frosted plastic.
That is the inverter, check the connections on the inverter and power the laptop up to check the display, to remove it gently pull the plugs from each end and remove the screw from the middle and pull the board away.
Look at the inverter for a copper coil, if you re-solder the solder points around the coil you may find it works again as components that suffer from extreme heat the solder joints dry causing bad connections, re-floating the solder solves the problem in 90% of cases.

Take the laptop for repair.
In this case all you have to do is source a reputable PC repair store and take it in for them to fix. (it should be fairly inexpensive).



Good luck.

Sep 02, 2009 | Toshiba Satellite P105-S9722 Notebook

1 Answer

My screen does not come on


Sounds like a bad video card or your ram has gone bad.Chances are its the video card or possibly both together.

Jul 27, 2009 | Toshiba Satellite P105-S9722 Notebook

1 Answer

How can i recover my laptop to factory settings?



Applicable Models: Satellite L15-S104, L15-S1041, L20-S310TD, L20-SP231, L25-S119, L25-S1194, L25-S1217, L25-S1213, L25-S1215, L25-S1216, L25-S1196, L25-S1211, L25-S1214, L25-S1212, L25-S121, L25-S1193, L25-S1192, L25-S1195, L35-SP1011, L35-S2366, L35-S2316, L35-S2206, L35-S2194, L35-S2174, L35-S2171, L35-S2161, L35-S2151, L35-S1054, P100-ST7111, P100-ST9212, P100-ST9712, P100-ST9742, P100-ST9772, P100-ST9762, P100-ST9752, P100-ST1072, P100-ST9732, P100-ST1071, P100-ST9412, P100-ST9612, P100-ST9012, P100-ST7211, P105-S921, P105-S931, P105-S9339, P105-S9337, P105-S6227, P105-S6217, P105-S6134, P105-S6124, P105-S6114, P105-S6104, P105-S6102, P105-S9722, P105-S6062, P105-S6022, P105-S6084, P105-S6064, P105-S6034, P105-S6024, P105-S6158, P105-S6148, P105-S6207, P105-S6197, P105-S6187, P105-S6177, P105-S6167, P105-S6157, P105-S6147, P105-S6074, P105-S6054, P105-S9312, P105-S6014, P105-S6002, P105-S6004, P105-S6012 << hideThe printed instructions included with the Recovery and Applications/Drivers Media disc are correct for most computer models. For some models, however -- including those listed above -- booting from the Recovery disc requires pressing the F12 key, rather than the 'C' key. The instructions below are correct for these models.
CAUTION: The Recovery process reformats the computer's hard disk drive, which completely erases its contents -- including all applications, all documents, and all other data stored on the drive. Be sure to back up your documents and other data before following the instructions below.
Follow these steps to erase the current contents of the hard disk drive and to re-install all of the software that was installed on the computer when it was manufactured:
1. With the computer on, insert the first Recovery disc into the optical drive.
2. Shut down the computer (click the Start button, click Shut Down, select Shut Down, click OK).
3. Press the computer's power button to turn the computer on, and then immediately press and hold the F12 key. Release the F12 key when the menu of boot options appears.
4. Use the arrow keys to navigate to the CD/DVD option. Press the Enter key to select it.
The computer will restart, and will boot from the Recovery disc.
5. Follow the instructions on the screen to start the Recovery process.
CAUTION: Once the Recovery process has begun, do not interrupt it.

The computer's hard drive will be formatted, erasing its contents. All of the software that was installed on the computer when it was manufactured will then be re-installed.
6. Once the Recovery process is complete, remove the Recovery disc, and press any key to restart the computer.
- mc/wa

Jan 27, 2009 | Toshiba Satellite P105-S6207 Laptop

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