On Wed, Apr 2, 2025 at 02:09 PM, VA2OJD wrote:
Would that be indicative of anything underlying problems or is that simply the screen's nature??
I think it indicates something very wrong.? Has it always been this bright?? The screen backlight, properly working, is brighter than some prefer, but it is far from being bright enough to wash out the LCD.? I have 4 QMX/QMX+ devices of different hardware versions, and the display works similarly on all of them, with a full range of contrast adjustment.
?
It would be helpful to measure the voltage on pins 15 and 16 of the display connector (the backlight pins) or the resistor.? Is it 5v?? Or do you somehow have a higher voltage there?? If it is 5V, perhaps the particular display you have was intended for 3V operation, and I would put an even larger value resistor in to reduce the current.?
