Vizio vp50 hdtv20a

[ddubz]

Can anyone help me out with the 3 adjustment knobs on this board. Its lj41-04217a. Just want to know what they do and if they change voltage where do I test the voltage at. I adjusted the one on the x main by using a multimeter on test point but I don't see Any test points On this y main

[tom66]

Re: Vizio vp50 hdtv20a

The adjustable points on this usually control timings and peak voltages, which can only be adjusted precisely with an oscilloscope. But it's still possible to adjust them by eye -- looking closely at the plasma panel while it's working.

[ddubz]

Re: Vizio vp50 hdtv20a

The adjustable points on this usually control timings and peak voltages, which can only be adjusted precisely with an oscilloscope. But it's still possible to adjust them by eye -- looking closely at the plasma panel while it's working.

Thanks for the info