Chosen Solution
I read this article Acer AL1916 Troubleshooting good morning my monitor is powering all right but the moment it comes for a while goes off. It does not blink on and off the monitor is on but the light is deem how can I go about it to make it appear clear and bright? Thank you.
This is most likely an issue with the backlight. Try shining a flashlight on the screen after it goes black, can you still see the display? If so your backlight is going bad and your lcd is fine.
I had this problem. I opened the display, noted several heinous looking capacitors on the Poewr Supply board, Installed the correct replacements - haven’t had a glitch from it in 3 years.
