Asus x53u Screen

[Lee AINSLEY]

Hi Guys I am after a little help please. I have a Asus X53u whch has a dim display, i.e. i can only see the display by shining a torch on the screen. I have replaced the LCD cable which didn't resolve the issue so I replaced the screen, and unfortunately still have the same issues. does anyone have any other suggestions.

Thanks Lee

 

[Eximo]

Usually means the backlight has failed. Not much to do but replace the whole panel. Parts are hard to come by.

 

[Lee AINSLEY]

Usually means the backlight has failed. Not much to do but replace the whole panel. Parts are hard to come by.

Hi Thanks for your reply. I have replaced the screen and cable, and seem to have the same fault, since doing this I should be able to rule out a faulty backlight (I think)

 

[Eximo]

External power supply to the panel? Perhaps located somewhere else on the laptop. I wouldn't think so since most are LED backlight these days and don't require the high voltage like CCFL backlights did.

 

[Lee AINSLEY]

External power supply to the panel? Perhaps located somewhere else on the laptop. I wouldn't think so since most are LED backlight these days and don't require the high voltage like CCFL backlights did.

Again thanks for the reply, could a faulty power jack cause a dim screen? the thought crossed my mind whilst driving to work this morning.

 

[Eximo]

A working battery would be able to supply the voltage and current regardless of the state of the power input. At least for a while. If the supply inside the laptop were faulty, only finding the known value and measuring its output would it be possible to determine that as the problem.

Since you say you replaced the cables going to the panel, that rules out a simple breakage. It may be possible to find the standard pinout for the connectors that are used for the monitor cable, but it may vary by vendor.

It is very difficult/impossible to track down electrical schematics for recently manufactured computers. Last resort you could try a motherboard swap and see if that does something.

 

[jarotech]

Hi, if you can verify the inductor L119 for the continuity, or the voltage on both sides with the ground has common, maybe this is the problem for not having any backlight.