Hi,
I Have a Compaq X1000 motherboard that works fine on external monitor, but on internal LCD there is no Backlight.
Tested with another vga card and lcd and problem remains.
On an simple diagnose, with a working motherboard, measured capacitors C78 and C79 as per picture and there is 3V on left side and 0V on right side.
On the failing motherboard, the C78 as the 3V and C79 as 0V on both sides.
Replaced the C79 capacitor and same problem.
Any idea on how to start searching ?
Thanks
I Have a Compaq X1000 motherboard that works fine on external monitor, but on internal LCD there is no Backlight.
Tested with another vga card and lcd and problem remains.
On an simple diagnose, with a working motherboard, measured capacitors C78 and C79 as per picture and there is 3V on left side and 0V on right side.
On the failing motherboard, the C78 as the 3V and C79 as 0V on both sides.
Replaced the C79 capacitor and same problem.
Any idea on how to start searching ?
Thanks
Comment