The whining of the power board I talked about on the other recent 3400 thread.
The caps are bad. Replace the 2 caps and that should disappear.
The pop and non screen come on has to do with something corroded in the area of the battery as one of my three does what you describe. One board I have makes the screen come on. So I was able to test the screens and 2 were fine. The issue is power output and signal to the screen. I cannot do board level repair and cannot justify paying for it so I am stuck.
The one that boots and shows the cursor shows the rest of the screen garbled and will not boot.
The one the screen does not come on will boot and go to desktop as you can make it do alert sounds. Neither of those 2 will allow output to external video.
The caps are bad. Replace the 2 caps and that should disappear.
The pop and non screen come on has to do with something corroded in the area of the battery as one of my three does what you describe. One board I have makes the screen come on. So I was able to test the screens and 2 were fine. The issue is power output and signal to the screen. I cannot do board level repair and cannot justify paying for it so I am stuck.
The one that boots and shows the cursor shows the rest of the screen garbled and will not boot.
The one the screen does not come on will boot and go to desktop as you can make it do alert sounds. Neither of those 2 will allow output to external video.