Hi Everyone.
I have a Dell E6410
Schematic : http://kythuatphancung.vn/uploads/do...l_LA-5472P.pdf
* I'm not sure if I am allowed to link directly to that if so sorry and please remove *
The problem is that the laptop has a dim screen even with a new LED screen. The client says that it displayed fine before he had it on VGA external after using it on External VGA display the screen went dim.
- Current state -
1. Display on internal LED screen but no backlight. (DIM)
2. No display on external display via VGA port and with using "Display port" to HDMI
I checked the pins everything seems okay.
All voltages seems okay aswell. 19V, 3.2V, 11.3V (This should be 15V so that feels weird but i don't think thats the issue)
The dim switch works fine with a magnet. (No difference on the backlight though)
On page 24 on the schematic PDF. The LCD Power Circuit.
I noticed that D3 only gets one signal.
LCD_VCC_TEST_EN = 3.2v As soon as the screen switches on (without backlight)
ENVDD_GPU = 0.0 Always / Also checked with the Oscope nothing just about 20mV and noise.
I tried another CPU as it uses the HD series Same still.
Anyone know what ENVDD_GPU is supposed to be? or anyone experienced a similar issue? or Any idea what I could check?
Thanks
MJ
I have a Dell E6410
Schematic : http://kythuatphancung.vn/uploads/do...l_LA-5472P.pdf
* I'm not sure if I am allowed to link directly to that if so sorry and please remove *
The problem is that the laptop has a dim screen even with a new LED screen. The client says that it displayed fine before he had it on VGA external after using it on External VGA display the screen went dim.
- Current state -
1. Display on internal LED screen but no backlight. (DIM)
2. No display on external display via VGA port and with using "Display port" to HDMI
I checked the pins everything seems okay.
All voltages seems okay aswell. 19V, 3.2V, 11.3V (This should be 15V so that feels weird but i don't think thats the issue)
The dim switch works fine with a magnet. (No difference on the backlight though)
On page 24 on the schematic PDF. The LCD Power Circuit.
I noticed that D3 only gets one signal.
LCD_VCC_TEST_EN = 3.2v As soon as the screen switches on (without backlight)
ENVDD_GPU = 0.0 Always / Also checked with the Oscope nothing just about 20mV and noise.
I tried another CPU as it uses the HD series Same still.
Anyone know what ENVDD_GPU is supposed to be? or anyone experienced a similar issue? or Any idea what I could check?
Thanks
MJ