09-17-2010 12:28 AM
The LCD panel is dark. One can see that the display is still working - only no backlight.
When pushing the lid switch (which turns of the LCD when closing the lid) the dark screen turns to black. I.e. this switch is working properly.
External monitor is working.
When changing with "Fn/F7" between LCD panel and external monitor the backlight turns on for a few seconds but quickly turns dark again. In the moments when the backlight turns on one can see that the display colours and everything are quite fine... (so no redish which would indicate a lcd problem). Moving the lid mechanically cannot bring the light back.
I was sure it would be a problem of the LCD flex cable and replaced it - but unfortunately with no result.
Would be glad about hints what could solve the problem!!!
Maybe changing the inverter?
Or might it just be a bad soldering joint or loose cable connection? But where? In the lid or on the main board...?
Changing the panel itself is of course a quite costly affair..
Thank you for your help!!!
(Model No.: 1858-3BG)
09-17-2010 03:41 PM
Chances are that the backlight itself has gone bad.
Has your screen been reddish/pinkish on cold boot prior to this last episode?
09-18-2010 12:55 AM
Prior to this problem the screen was quite normal - no reddish/pinkish.
And as the backlight sometimes comes back for a few seconds (mostly when switching to ext monitor) the general funktion is there. Only some loose contact or whatever..
But where and how to fix it...?
Thank you! Jochen
09-18-2010 09:08 PM
09-24-2010 07:32 AM
09-28-2010 01:12 AM
Yes, I already tried this - but with no effect.
Now I ordered a new inverter. Let's see if this helps...