What a nice fast forum with kind guyz
thank you all for pay attention to my posts.
I rather to use component ( RGB ) instead of component becasue my receiver have composit our now and im using it from before till now, but for improving the quality , i want to use component. ( regards to stevelup suggestion )
and regards to my friend, albriscoe, i should say it is very hard for us ( iranian people ) to transfer money to overseas countries nowadays becasue USA banned our economic, so any money will transferred, will be blocked.
I really dont know why should i solve this problem but i think i have 3 ways :
1- guyz help me to find a diagram for making a pcb for this convertor and i will make it on my own
2- one of friends ( such albriscoe ) let me know the price of a high quality convertor ( scart to RGB or HDMI ) + freight to send it for me. Then he prepar it for my by his own money, i also will arrange what he want and it is available in Iran, ( equal to cost of convertor ) and send it to his address

3- and last way, i TRY to forget it and see low quality of composit ... hehe ...
anyway, thanks again all
B.R
Alireza