Breaktru thanks for the link for parts, already reviewed 16 pages on Ebay exhausting!!!!! Hopefully my last post will help others. Trust me to all who have a working ohmmeter, which I don't have in hand, but you just need to use the existing switch to restore jumper removed which I believe was not a resistor originally but just a jumper,anyone have the removed SMD to check it, can't be too safe, no smoking circuits, don't need to remove the 9.99M resistor just short across it when using ohms, remove short when using volts, and don't use the 10K resistor across the Ra = no scaling= original 200mv range.
This is why for safety sake of the meter I would of tried the voltage divider totally external to inputs, for accuracy I can see eliminating any possible drops by using New Ra across existing Ra, but electrically I believe that Rb could of been external or in series with the correct input lead, with no difference to accuracy, come on it in the Meg ohm range no little drop or difference in current can be noticed due to some added wire length, the dropping resistor does matter.