Have u tried with another screen?some one?
No I don´t tried HDMI cause, cause I get image on the screen, I dont get the Backligth, I think its will be work with HDMI.Have u tried with another screen?
Have u tried with an HDMI cable on an external screen?
Check Fuse 8400?
Did u check VIN, and Enable signal for Display IC U8400?? Check Pin 17(Enable signal), R8447 (PWM) and check Pin 5 & Pin 18.
Checked voltage on L8410?
Post all measurements here for us to see
Hosein Abi, I am so sorry, I tried all this time with out LCD and LVDS cable.check all voltage without lcd and lvds cable . you can en backlight with jumping but user cant control of backlight brightness
and yes Tried another screen, same result, nothing has changed, no Backligth
Hosein Abi, I am so sorry, I tried all this time with out LCD and LVDS cable.
So now when I tried with LVDS Cable and conected LCD, I get this result
PIN 17 3.32V
PIN 18 5,12V
PIN 5 5,12V
F8400 PIN 1 and PIN 2 12,62V
Oh yes, you are rigth, but the voltage diferent with pin 4 and pin 3 it is verry low.
pin 4 = 12,62v
pin 3 = 12,52v
C8400 =1,00 nf (1000pf)
R8401 = 80.6k
R8402 = 63.4k
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