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How to turn on the LED backlight display on Toshiba Satellite A665 computer?

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If your laptop appears to boot up and the hard disk LEDflashes, then the problem is probably a back light fault. This can be a faultyinverter or a faulty CCFL lamp. Please click on this link and follow myinstructions to identify the fault and possible fix :- http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

Posted on Mar 19, 2011

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Posted on Jan 02, 2017

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Are the display bands compatible?


1) Toshiba Satellite P300-13j LCD screen example,

http://www.screentekinc.com/Toshiba_Satellite_P300D-13J--17-inch--1440x900-wxgaplus-laptop-lcd-screen.shtml

Thin Film Transistor (TFT) Active Matrix LCD screen, that is WXGA, and uses one CCFL for a Backlight.

2) http://www.lcds4less.com/ToshibaLaptop__Toshiba_Satellite_P300D-12L__laptop-screens.html

Thin Film Transistor (TFT) Active Matrix LCD screen, that is WXGA, and has 1 CCFL for a Backlight.

There is a pretty good chance. The screen Inverter and LCD screen are a matched unit. I would remove the screen Inverter from the P300-12L, and use it also.

Looks like this,

http://www.lcd-inverter-shop.com/Toshiba/Toshiba-Satellite-P300D.html

If I may ask;
1) Is there obvious damage to the LCD screen?

2) If there is not obvious damage to the LCD screen, have you used an external VGA monitor with the laptop?

To see if the problem is the graphics chipset, or the video cable, or inside the Display Assembly.

A) http://www.irisvista.com/tech/laptops/Toshiba-Satellite-P305/take-apart-notebook-1.htm

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


Post back in a Comment.
Regards,
joecoolvette

[Primer:
An LCD screen cannot produce light by itself,
(Click on the monitor icon,

http://solutions.3m.com/wps/portal/3M/en_US/NA_Optical/Systems/BehindTheScenes/Optics101/ )

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.

LED stands for Light Emitting Diode

CCFL stands for 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.

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

Observe the last 8 photos especially. This article shows you that the LCD screen is an assembly. It is composed of layers. Just like the 3M company's tutorial. Also shows general instructions for replacing a Backlight.

A screen Inverter is used to convert the power from the laptop, for the LCD screen, and Backlight.
It is a small circuit board, and is usually mounted towards the bottom of the LCD screen, and behind the Display Bezel.

A CCFL, (Or two of them), uses a screen Inverter.
LED backlighting however, may or may not use a screen Inverter.

Using LED's for backlighting is relatively new, when discussing backlighting technology.
Some of the first designs of LED backlighting does use a screen Inverter.
Newer designs do not seem to.

90 PERCENT OF THE TIME the problem can be attributed to a bad screen Inverter.

Aug 21, 2012 | Toshiba Satellite Computers & Internet

1 Answer

Recovery disc for toshiba A665-S6054


You must contact Toshiba customer support for this recovery disk set, there will be a charge for the discs.

Jul 12, 2012 | Toshiba Satellite PSAW0U-01K001 A665-S6054...

1 Answer

A665-s6057 screen compatabilty issue


Hello
If you can see the image on the screen with a flashlight then it's a problem with the inverter.

Good Luck

Feb 13, 2012 | Toshiba Computers & Internet

1 Answer

A665 Toshiba satellite when i switched on no dispaly after a while it's turn off the fan is noisy


Please remove the battery and ac power adapter. hold power on button for 1-2 minutes. Then try to power on laptop with ac power adapter without battery. check the display of laptop.
If not check the dc voltage of the ac adapter. is it the same voltage as written on the ac power adpater. if not same please try with another adapter.
If not remove the hard disk and ram. clean the fan,ram. Reinsert ram and power on with ac adapter. check the display.
Please check with external display if laptop is turned on but no display.

Jul 01, 2011 | Toshiba Satellite A665-S6086 Laptop

1 Answer

I need driver software for lab top toshiba satellite a665/s6086


all toshiba satellite A665-s6086 drivers: --->click here<----
and watch the video

May 19, 2011 | Toshiba Satellite A665-S6086 Laptop

3 Answers

How and where to download all drivers for toshiba a665-s6093 after reinstall the os with windows 7 64 bit some of fitur like hot key and etc not working properly....pls need help asap !! thanks


Hi
Go the website of the manufacture, choose your laptop model (
Satellite A665-S6093), and the operating system ( 7-64bit),
and download the software utility for the keyboard

Please tell us your results
Good Luck

May 16, 2011 | Toshiba Satellite A665-S6093 Laptop

1 Answer

I cannot get the keyboard to backlight. ??? LED Backlit, it lights in a couple places but not behind the keys. Please help.


The keyboard does NOT have back-lights. The display does have led back-light so you can read the screen.

Apr 14, 2011 | Toshiba Satellite A665-S6070 Notebook

1 Answer

Toshiba Satellite Laptop A665-S6086 came with 4GB of 2x2GB DDR3. Upgraded today to 8GB of 2x4GB DDR3 and went to turn it on, but the lights are on it beeps and then shuts off. Took out battery and AC for...


There is a chance that you ESD and ruined the motherboard. Take all the RAM out and try to boot it and see. Then put one in and boot and then the other. This checks the memory. See if you can get to CMOS setup screen in the bios.

May 20, 2017 | Toshiba Satellite A665-S6086 Laptop

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Jul 05, 2018 | Toshiba Computers & Internet

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