Hello,
this 820-3662 turns on normally. The board looks fine - no evidence of water. The problem is that it chimes every three seconds as soon as i plug a screen into any port. This happens on the LVDS as well as n the thunderbold port. It also turns backlight on and an external monitor recognizes it permanently (no ""no signal" message) but it´s not showing a image on any screen.I also tried two screens internally and both thunderbold ports - same thing. Without any screen plugged in it chimes only once. I measured all Rails with S0 in their name andt hey are all there. Now i am stuck.
Thanks for any help
this 820-3662 turns on normally. The board looks fine - no evidence of water. The problem is that it chimes every three seconds as soon as i plug a screen into any port. This happens on the LVDS as well as n the thunderbold port. It also turns backlight on and an external monitor recognizes it permanently (no ""no signal" message) but it´s not showing a image on any screen.I also tried two screens internally and both thunderbold ports - same thing. Without any screen plugged in it chimes only once. I measured all Rails with S0 in their name andt hey are all there. Now i am stuck.
Thanks for any help