Motherboard of Fujitsu E754 on E744 laptop

[bran.iliev]

Hello,
I have Fujitsu E744 with faulty motherboard, I bought motherboard for Fujitsu E754, because I can't find mainboard for E744. The motherboard of E754 is working with external display, but internal display(1600x900pixels) of E744 is not working with E754 motherboard, which is designed for 1920x1080pixels LCD panel. Can I make E754 motherboard to work with E744 1600x900 dysplay?

[bran.iliev]

Re: Motherboard of Fujitsu E754 on E744 laptop

?

[mon2]

Re: Motherboard of Fujitsu E754 on E744 laptop

Hi.

Do you have the schematics for these logic boards ? Can you link them ?

If not available, post the full markings / label pics of each display panel.

There are many different styles of panels that vary in details such as:

pinouts
backlight voltage
data interface - could be MIPI; LVDS; DP; eDP (just some from my memory bank)

Each is a factor on which LCD panel can be used where.

You cannot simply swap out panels unless all of the details are investigated. Perhaps the LCD vendor has a compatibility list and it may work for your case but just quickly guessing that it will not be a drop in replacement.

You risk damaging the panel and/or logic board with the wrong substitution.

[nikokin]

Re: Motherboard of Fujitsu E754 on E744 laptop

e754 e744 e734 have lcd edid whitelist, laptop will only work on specific lcd,
specific panel, fujistu is very unfriendly to swaps and repairs, i have two motherboards one for e754 and one for e734 both with broken lcds, and if you swap them they will not work, only backlight works but no image.

[Conste]

Re: Motherboard of Fujitsu E754 on E744 laptop

on E554 models there is a eDP and LVDS version of board, which use the same connector on the mainboard.
So the (wrong) screen will fit but not work.