11-17-2019, 08:45 PM
(11-14-2019, 04:07 PM)tgrauss Wrote: If you set the brightness of the screen to the maximum, the noise disappear. This means that it is the PWM used to set the brightness of the screen which is causing this.
We will have to see if it is possible to add some shield around the components which are setting the brightness.
As other's have also confirmed. Setting the brightness to 100% makes the whine go away. Will take a closer look at the board to see if the components can be identified. Thanks for sharing!