Eugenio,

Can I suggest you unsolder the resister because the coloured bands may be visible underneath the resistor.

I have a RV7, too. I managed to find a parts list and from the internet. I'll try to find it again and post a link. 

EDIT: That wasn't too easy! link is the parts list. I am not quite sure about the resistor in question, the PCB layout shows there should be two resistors, R1 (10 ohm, 0,33W) and R2 (0...220 ohm, 0,33W) connected in parallel, whereas in your photo there seems to be only one resistor (but visibly a place for the second).

I also find a photo of the insides or my RV7. Unfortunately the photo is not especially a good one, but clearly there is just one resistor, too.

OMG!!!

Thanks to all! Thanks thanks and thanks again and again!!!! 

Tryed to remove the resistor but was not readable. Thanks for the image and the doc above. 

I'm so happy!!!

Best regards!!!!!

Eugenio

PS

Today is a great day, first the manual, and then for the FIRST warranty destructable label from MV!!!!