i want to coonect my hp all in one desktop that have usb port not hdmi to sony projection tv that have rca port so plz suggest me how can i connect my pc to tv.
You will need an external video adapter like this: http/www.newegg.com/Product/Product.aspx?Item=9SIA6J327T7795
and then a converter to go from VGA to RCA (this could be composite video (yellow RCA) or component video (3 RCA usually Red, Green, Blue). Couldn't find a one converter solution.
You will also need an audio cable if you want sound to come from the TV.
All laptops will have video out, either DSUB, DVI, DisplayPort or HDMI. No laptop will rely on usb (for marketing purposes such as projectors) as a means for video, you could use an external USB Graphics card but performance would be crap. And what do you mean by all in one desktop system? Is it a laptop or desktop?
RCA is analog so if you had DVI-A or I or DSUB, it is possible with an adapter.
You will need an external video adapter like this: http/www.newegg.com/Product/Product.aspx?Item=9SIA6J327T7795
and then a converter to go from VGA to RCA (this could be composite video (yellow RCA) or component video (3 RCA usually Red, Green, Blue). Couldn't find a one converter solution.
You will also need an audio cable if you want sound to come from the TV.