If you have tried to take apart your Viewsonic monitor but cannot figure out where the screws are, they most likely are hidden behind the stand base. Once you take apart the base, you will see the screws holding together the monitor frame. Once you gain access to the hardware inside, you can perform at-home fixes. Be careful whenever taking apart computer devices, as you can permanently damage the device and break your warranty policy.

How to Open the Back of a Viewsonic Monitor With No Visible Screws  5 Steps  - 25