Hi i owned a tv repair business from 1970-1984.I have a zenith projo.
that i repaired twice.Did a lot of reading to understand the new technology.Now i am checking out plasma.When i was looking at trouble shooting these they talk about Vs and Vavoltage.My question is what exactly is Vs,Va?
Thanks for any help,Edward

 

Volt-ampere (VA) is a measurement of power in a DC electrical circuit.
(source: http://whatis.techtarget.com/definition/0,,sid9_gci539345,00.html )

Vs refers to the supply voltage.

 

I think you will find Va stands for anode voltage (around 150 volts for a plasma screen).

This is derived from the supply voltage Vs by a suitable invertor.

Read this Maxim tech note.

http://www.maxim-ic.com/appnotes.cfm/an_pk/1193

 

I think you will find Va stands for anode voltage (around 150 volts for a plasma screen).

This is derived from the supply voltage Vs by a suitable invertor.

Read this Maxim tech note.

http://www.maxim-ic.com/appnotes.cfm/an_pk/1193

Thanks for clearing that up

 

Thanks for the explanation!
Edward