dell lcd brightness problem

[alihomee]

today i change one dell latitude d430 lcd but the brightness is not same like orignal one any idea how to make it

[fddizon]

Re: dell lcd brightness problem

try another

[Techn0pro]

Re: dell lcd brightness problem

today i change one dell latitude d430 lcd but the brightness is not same like orignal one any idea how to make it

Sometimes if your connection cable for the LCD display is not plugged in tightly enough it can cause a dim display. Recheck your connection. Also, try adjusting the display contrast to the brightest setting. Disable any ambient sensor if equipped.

[masud]

Re: dell lcd brightness problem

i faced the same problem. i had to replace with another dell latitude lcd. then only it fixed. i tried on changing the ccfl tube but no result.

[alihomee]

Re: dell lcd brightness problem

actually dell laptops only support the lcds which comes with inverter and specially made for dell .i think by changing the bios or fermwire chip on lcd can solve this issue.any one can point out the location of that chip

[Kiriakos GR]

Re: dell lcd brightness problem

and specially made for dell

No shit ? Shame to Dell about making your life hard.

[spidey]

Re: dell lcd brightness problem

what about measurements ? vin, brigthness and on/off =? i think you have vin = 19v and on/off ? 3.3 but dont have brightness signal, chek with schematics and if you dont have the brightness then solder a wire from nearest 3.3v.

[dycc]

Re: dell lcd brightness problem

disconnect the brightness pin first from the connector before solder a wire from nearest 3.3v on it . do this to avoid return current on the board .

[dycc]

Re: dell lcd brightness problem

agree to spidey . LCD screen with LVDS connector is a standard .
only Vin , on/off and brightness signals are necessary to light up the screen