It sounds more like it could be the backlight itself, rather than the inverter. The inverter tends to either work, or completely fail. It produces a fairly high AC voltage for the CCF fluorescent tube which is behind the display. That tube has a finite lifetime; you generally will see the screen brightness slowly go down over time, and eventually, it may fail completely. This is more or less like a fluorescent light tube you would find in an office building etc. Only this one has a "cold cathode", meaning it does not need to have a filament inside of it constantly being heated by electricity; it operates with "cold cathodes".
Of course, there is no rule with computers that can't be broken! But, given the cost of inverters vs. backlights, I'd try the backlight first. If you know of a repair shop or store which has a repair department, they may be able to test it for you. Or, you may find testing instructions on the internet. I did a google search and got so many hits I can't possibly look through them. I'll leave that to you!
Toshiba Satellite Problems
in Windows 10, 8, 7, Vista, and XP
Posted
It sounds more like it could be the backlight itself, rather than the inverter. The inverter tends to either work, or completely fail. It produces a fairly high AC voltage for the CCF fluorescent tube which is behind the display. That tube has a finite lifetime; you generally will see the screen brightness slowly go down over time, and eventually, it may fail completely. This is more or less like a fluorescent light tube you would find in an office building etc. Only this one has a "cold cathode", meaning it does not need to have a filament inside of it constantly being heated by electricity; it operates with "cold cathodes".
Of course, there is no rule with computers that can't be broken! But, given the cost of inverters vs. backlights, I'd try the backlight first. If you know of a repair shop or store which has a repair department, they may be able to test it for you. Or, you may find testing instructions on the internet. I did a google search and got so many hits I can't possibly look through them. I'll leave that to you!
good luck!
Larry Holmes