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Toshiba Satellite A10-S1291 broken monitor on hinges.

Monitor when open doesn't hold it's positionand falling back.

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Video on my toshiba L455=s5009 comes on for a few seconds then blacks out


From your brief diagnoses stated, it sounds like a bad Video Cable.

The Video Cable routes from the motherboard, across one edge of the Fan Assembly, and under the left Hinge assembly,

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-Pro-L450-L455/big-body/laptop-disassembly-19.jpg

With just the usual opening, and closing of the laptop, the Video Cable's sheath may be damaged. This means the tiny wires inside the sheath may be damaged.
(Stretched/Broken)

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-Pro-L450-L455/laptop-disassembly-1.htm

http://www.laptoprepairparts.com/html/details.asp?ref=1860&category=cables

Or it may be the screen Inverter that is damaged, or going out,

http://mcccomputers.com/shop/lcd-inverters/3666-new-toshiba-satellite-l455-s5009-l455-s5045-lcd-inverter-pk070006t20-k000087330.html

Or the LCD screen assembly.

Could be the graphics chipset.

Diagnose.

1) Laptop OFF, monitor OFF, connect an external VGA monitor to the laptop's VGA connector, on the back of the laptop.

[ RBG (Monitor) port ]

You can use a CRT monitor (Looks like a small TV), or a flat LCD screen monitor if it has a VGA cable, for the external VGA monitor.

[ Example of a VGA cable, and a VGA port (Connector),

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

Turn the external VGA monitor on. If a CRT type allow it to warm up.
Turn the laptop on.

By default the external monitor should show the display, also.
IF not;
1) Press, and hold down on the Fn key, and simultaneously tap on the F5 key. (The F5 key is the Display toggle-over key)

Not showing on the external VGA monitor? Perform the above procedure again.
There are several display options.

External VGA monitor also show the same symptoms?
Bad graphics chipset. Replacing the motherboard is the most cost effective method, and easiest method.

External VGA monitor does Not show these symptoms?
Problem is the Video Cable, or screen Inverter, or LCD screen.

Due to movement of the LCD screen, which means movement of the Video Cable, my money is on a bad Video Cable.

(A Video Cable can be unplugged partially, real easy, on the back of the LCD screen.
It MAY look plugged in tightly, but may not be.

It can also be unplugged real easy when assembling the Display Assembly, to reinstall back on the laptop )

Check the Video Cable's wires with a multimeter. Perform a continuity check of all wires in the cable. (Multimeter set to Ohms)

Have an assistant also gently wiggle the cable, as you are testing. See if there is an intermittent break, due to a stretched/broken wire.

Or just buy a replacement Video Cable, and use it.

For additional questions please post in a Comment.

Regards,
joecoolvette

Feb 04, 2012 | Toshiba Satellite L455-S5009 laptop

1 Answer

My toshiba laptop will boot when I power up but the screen stays black


Jeff, connect an external monitor for a diagnostic test.

Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port on the back of the laptop,
(RGB/Monitor connector,

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

The external/VGA monitor can be a CRT type (Looks like a small TV), or a flat LCD screen that has a VGA cable.

Turn the external monitor on. If a CRT type allow it to warm up.
Turn the laptop on.

By default the display should show on the external monitor. If not press, and hold down on the Fn key, and tap the F5 key. (One of the Hot Key's)

If the display still does not show, hold down on the Fn key, and tap the F5 key again.
There are three display options;

1) Internal monitor of laptop ONLY
2) Internal monitor of laptop AND external monitor
3) External monitor ONLY

If graphics show on the external monitor, you have a problem in the Display Assembly, and/or the Video Cable.

If graphics do Not show on the external monitor, you have a problem with the graphics chipset on the motherboard.
(ATI Radeon 3100)

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-Pro-L450-L455/laptop-disassembly-1.htm

Video Cable
1) Could be the connections. The connection of the video cable TO the motherboard, and the other end of the video cable TO the back of the LCD screen. (In the Display Assembly)

2) Could be damage to the video cable. Check the sheath of the cable for obvious signs of damage. If so, the thin tiny wires inside may be damaged also.

Cable should be checked for continuity of each wire in the cable. (Ohm's with a multimeter)

Video Cable condition, and tightness of connections check out, it's on to the screen Inverter.

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

A Backlight is a CCFL, or a series of LED lights.

The Toshiba Satellite L455D-S5976 Notebook PC, uses 1 single CCFL for a Backlight.
Cold Cathode Fluorescent Lamp.

Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

A screen Inverter is used to convert the power (Electricity) from the laptop, for the LCD screen, and Backlight.

90 PERCENT OF THE TIME the fault is the Inverter.

The screen Inverter is a small rectangular circuit board, and is located behind the Display Bezel, an at the bottom of the LCD screen,

Example of screen Inverter,

http://www.battery-stores.co.uk/laptop-inverter.php/toshiba_Satellite+L455D-S5976_205_5226.htm

Link to a free Service Manual for the Toshiba Satellite L455D series of Notebook PC's,

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-toshiba

Under the main Toshiba heading go down to the subheading -
Satellite A10. (A10 is in blue)
In this 'paragraph' go down to the third line, and scroll across to -
L450D, in blue.
Click on L450D.

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on the file name { L450D } it may take up to 30 seconds before the first page comes up.

Would appreciate it if you would post back in a Comment with your findings.
Regards,
joecoolvette

Jan 15, 2012 | Toshiba Satellite L455D-S5976 Notebook

3 Answers

Where can I find Hinges for my Laptop Toshiba Satellite A10-S330


Hello
For Toshiba Spares there is no other to contact the Toshiba Service/Customer Service. So find the nearest Toshiba Service Using link provided below:-
http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/gaspLocator.jsp?subs=tais
Good Luck

Jan 10, 2011 | Toshiba Satellite A10 Notebook

1 Answer

The display screen does not sit any viewing angle.


More than likely both hinges are broken (the screen pivots to the hinges). Nothing to do but to replace both L and R hinges.

Dec 24, 2009 | Toshiba (SD-R2412) for Satellite A10, A15,...

1 Answer

Intermittant monitor clarity, resolution. On start up, Monitor resolution degrades and seems to be related to hinge position. Should it go in to service or Can ir be fixed easily with new driver. Satellite...


Hi,
This is a common problem with inverter cables working loose at the hinge end but could be a problem with the inverter itself or just loose hinges.
Downloading new drivers won't resolve the problem.
Either way the case has to be split to check certain components so opening it up will void what warranty you have left.
I recommend the you take advantage of the warranty and send it in for Toshiba to repair as when the laptop comes back it will be OEM repaired and should work great for a good while.



Regards.

Aug 17, 2009 | Toshiba Satellite A105-S4004 Notebook

2 Answers

Monitor dark; hinges broken


He may have damaged the inverter or left the cables disconnected from the backlights. The inverter supplies the required voltage to the LCD Back lights.

Mar 31, 2008 | Toshiba Satellite A25-S207 Notebook

1 Answer

Monitor mechanical problem


What i belive is that the hinges of the screen are loose.I would suggest to cointact there tech support and get them replaced.

Dec 25, 2007 | Toshiba Satellite Satellite 5200 Series 15...

1 Answer

Installing an external monitor to a Toshiba A10 computer


press the FN and F4 keys similtaneously. That will switch the monitor from the LCD to the external monitor. But look on your keyboard it will indicate which buttons to do this for your model. The indication is hughlighted by the blue icons on the keyboard?

Sep 10, 2007 | Toshiba Satellite A10 Notebook

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