Sony resistor values?

Question

Hi,Checked the output transistors mn2488 and mp1620 and they are fine.Was recommended to replace the 0.22 ohm resistor (OK) and the 180 ohm resistor as well. Trouble is the current resistor is 220 ohm (original) so is it possible that this is the norm for 240V Australian models? Would it make any difference?Thanks a lot (love your site)