dflorin69
You was read topic carelessly! Condenser C93&C94 and R17 mods are mutually exclusive! Moreover, condenser mod "overwrites" R17 mod.

And since you asks "what to do to improve the noise value ?", I apologize that you totally don't understand what you will give by such mod. Please, reread discussion carefully.

P.S. You cannot measure true R17 value onboard without desoldering - there were other resistors shunt it.