Dim Screen Image

[xKIAxMaDDoG]

I have a Dell Precision m6400 that has a very dim image when powered on. Cannot see what's on the screen unless it's powered on. I've replaced the inverter and the screen. But the problem is unsolved. I think maybe it's the ribbon cable or mother board. There is a possibility the inverter is a faulty part. Any suggestions?

 

[ffg7]

if you replaced the inverter already then how can it be a faulty part? is it dim too when you are in the bios?
try this if you haven't already.

•Right-click on the desktop and a drop-down menu will appear.
•Click on "Display Properties."
•Click on "Color Correction."
•Note the "Brightness" scale. Slide the marker toward the right to brighten it and toward the left to decrease the brightness.
•Click on "Apply."
•Click on "OK." The "Display Properties" screen will close and the laptop screen's brightness will change.

have you tried an external monitor to see if has that issue or not?

 

[TechLovie]

Can you see the text an all on the screen when you put a flashlight on the screen?

 

[xKIAxMaDDoG]

Can you see the text an all on the screen when you put a flashlight on the screen?

yes, if a light is held to the screen, things become visable

 

[xKIAxMaDDoG]

if you replaced the inverter already then how can it be a faulty part? is it dim too when you are in the bios?
try this if you haven't already.

•Right-click on the desktop and a drop-down menu will appear.
•Click on "Display Properties."
•Click on "Color Correction."
•Note the "Brightness" scale. Slide the marker toward the right to brighten it and toward the left to decrease the brightness.
•Click on "Apply."
•Click on "OK." The "Display Properties" screen will close and the laptop screen's brightness will change.

have you tried an external monitor to see if has that issue or not?

Thanks, though unfortunately this hasn't solved the issue. The inverter was purchased used, so I am not sure if it was working before, I do have the original one still. When an external monitor is connected, it does receive video

 

[ffg7]

try the original inverter as not a motherboard issue since you can see stuff on the external monitor.

 

[xKIAxMaDDoG]

try the original inverter as not a motherboard issue since you can see stuff on the external monitor.

Trying that didn't solve the issue, do you think maybe the ribbon cable could be faulty. It doesn't seem like such a thing could happen, though I suppose it could happen

 

[ffg7]

it is possible.

 

[TechLovie]

Itys a faulty screen. Replace the screen. The inverter should have done it, but if not, its cuz of the backlight, which is in your screen. Avoid trying to fix that yourself.

Can you see the text an all on the screen when you put a flashlight on the screen?

yes, if a light is held to the screen, things become visable

 

[ffg7]

TechLovie, xKIAxMaDDoG already replaced the screen once.

 

[TechLovie]

Good point, it was a while back i forgot. Im almost sure that can only be the problem though! Unless his backlight isnt in the screen? It cant be the ribbon though, its unlikely, unless there is like a visible cut or something.

TechLovie, xKIAxMaDDoG already replaced the screen once.

 

[ffg7]

screen cable does go thru left hand hinge area so could be damaged by the plastic hinge cover.

 

[xKIAxMaDDoG]

screen cable does go thru left hand hinge area so could be damaged by the plastic hinge cover.

I'm just going to chance a $15 ribbon cable, and if it doesn't work, I'll just have to use it like a desktop.