Fujitsu AH532 DA0FH6MB6E0 rev e no backlight

[magnetepazzo]

Hi friend I have this laptop, the image on screen are correct but no have backlight, I have changed the screen with another but I have the same problem. With an external monitor it's ok. I think it's possible a fuse ? I have see the board to search F but I havent see. Please help thanks

[jiroy]

Re: Fujitsu AH532 DA0FH6MB6E0 rev e no backlight

You've already changed the screen , so the primary suspect now is the LED cable , and in my opinion , it was the only suspect ...

Try bending it gently at the point where it enter the laptop , it could be a loose tiny wire .

[magnetepazzo]

Re: Fujitsu AH532 DA0FH6MB6E0 rev e no backlight

You've already changed the screen , so the primary suspect now is the LED cable , and in my opinion , it was the only suspect ...

Try bending it gently at the point where it enter the laptop , it could be a loose tiny wire .

Thanks jiroy, I have moved slowly the cable but nothing have changed. I think if is one wire fault when move the cable The display should do something. I have see in the forum one similar problem with the ah512 and.I haved have thought are the same problem. Thanks for help, now I check again the lcd cable

[jiroy]

Re: Fujitsu AH532 DA0FH6MB6E0 rev e no backlight

Thanks jiroy, I have moved slowly the cable but nothing have changed. I think if is one wire fault when move the cable The display should do something. I have see in the forum one similar problem with the ah512 and.I haved have thought are the same problem. Thanks for help, now I check again the lcd cable

Mostly , a wire would be loose at the middle of the curve , but in some cases , wires could be shorted , and then , continuity wouldn't help . Try spreading the wires for better continuity measurements .
Sometimes also , wires can be loose from one side of each connector , and then , a new cable is the best solution .
A delicate and patient job .. Good luck .

[dspok]

Re: Fujitsu AH532 DA0FH6MB6E0 rev e no backlight

Thanks jiroy, I have moved slowly the cable but nothing have changed. I think if is one wire fault when move the cable The display should do something. I have see in the forum one similar problem with the ah512 and.I haved have thought are the same problem. Thanks for help, now I check again the lcd cable

Ok, check BL_Enable and BL_PWM signal on Panel connector both pin must have 3.3v