Viewsonic codes are the same as Phillips TV
I was going to return the TV
I took my Motorola remote to Costco to test another brand for my remote

The clerk said he could turn off a Phillips TV with the viewsonic remote
He thought it was a Phillips tuner inside

I got my code book out for the Motorola cable box remote and
viola!!! the first code I tried worked
In fact we tried all the 4 listed Phillips codes and they ALL worked

Let me tell you, I spent a lot of time searching prior to this
I called Viewsonic support, and the were NO help, and were not interested
The codes are 0054 or 1454 or 0690 or 1154
all 4 codes work for my remote

Let me know if this works for you