If you notice the LCD dimming/not lighting at all, it may be related to the LEDs. You may check the LED to see if they are lit or burnt out.
DO NOT look directly at the UV light to prevent eye discomfort.
Follow the steps to check your LED
- Open the bottom cover by loosening the 4 screws.
- The LED chip (COB) is mounted behind the lens
- On the printer's touch panel, tap Tools > LCD TEST
- Take a photo on the LED chip
- Check the photo to see if it burnt out