bluestang65c,
An LCD screen cannot produce light by itself.
http://solutions.3m.com/wps/portal/3M/en_US/Vikuiti1/BrandProducts/secondary/optics101/It needs an additional light source. The additional light source is a Backlight.
A Backlight can be a CCFL, or a series of LED's used as lights.
Your Toshiba Satellite L505-S6959 Notebook PC, uses a single CCFL as a Backlight,
http://www.laptopscreen.com/English/model/Toshiba/SATELLITE~L505-S6959/A CCFL is a Cold Cathode Fluorescent Lamp. Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.
(Average size is 2mm Thick. Length is almost as long, as the LCD screen is in height. 2mm is a little larger than 1/16th of an Inch )
A screen Inverter is used to convert the power from the laptop, for the Backlight, and LCD screen.
Your screen Inverter is going bad.
One example of a screen Inverter for your laptop,
http://nylaptopparts.com/index.php?main_page=product_info&cPath=98_101&products_id=779The plastic 'frame' in front of your LCD screen, is the LCD Bezel Assembly. (Toshiba)
Behind it, and mounted at the bottom of the LCD Screen Frame, is the screen Inverter.
Pictorial guide in replacing,
http://www.irisvista.com/tech/laptops/Toshiba-Satellite-L500-L505/remove-lcd-screen-inverter-1.htm[ Remove ALL power from the laptop. Remove the AC adapter (Charger) and Battery. Follow Anti-Static Precautions ]
This is a link to a free Service Manual,
http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-toshibaDrop down to the subheading - Satellite A10 (A10 in blue)
Go to the 3rd line in this 'paragraph', (L350D), scroll across, and left-click on L500. (The L505 is part of the L500 series)
Ignore if you are aware of the following;
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 (L500) it may take up to 30 seconds, before the first page comes up.
(Page 170 in the PDF file header. LCD Bezel Assembly )
For additional questions post in a Comment.
Regards,
joecoolvette
×