Sonance 12-50

[MALE20]

I recently purchased Sonance 12-50 with a view of repair and use in a future cinema room project. Item has had water damage in the power section that shorted the circuit. Looks like the previous owner did not bother too much and left the water inside which caused some further damage. I am in the process of removing and documenting everything however I am struggling to identify 3 2512 resistors as they were severely damaged. Can find any circuit or service manual so it is a bit of a challenge. I know that the first symbol was the letter R and the last digit is 0. My guess is that it was a 0hm resistor that was serving as a fuse. Any other ideas are more than welcome. The other damage component that I need to find is a replacement for Mosfet FDP18N50.

[Kim Christensen]

I am in the process of removing and documenting everything however I am struggling to identify 3 2512 resistors as they were severely damaged.

Were those 3 resistors all in parallel? If so, they might be part of the current sense circuit.

[Swake]

Meh... don't think the resistors are zero.
If those resistors would have been zero, these would likely not have blown up as a '0' Ohm short doesn't (shouldn't) heat up. And there is a visible clue too:
The ending zero on the top and the bottom resistors are slightly more square than the first number on the middle resistor and than the second number on the bottom resistor.

Ok, now, what numbers are these....
Not 0
Likely not 1; 4; 5; 6; 7
Maybe 9
Probably 2; 3; 8;

Possible E12 series resistors with these number:R220; R330; R820

Somehow I have a preference for R330... eventually R220, not R820 as it somewhat unusual. Well, I might be completely wrong with this guess.
3 times R330 in parallel is close to a tenth of an Ohm. In series it is close to an Ohm.

[MALE20]

I came to same conclusion it is not going to be 0. As there are other 220 fitted it makes me wonder if that would be 220 as well. But why there would be R in front of them compared to the others.  All where 3 in parallel feeding source voltage to FDP18N50 mosfet.

[Swake]

The R represents the decimal dot. These are 0.22 Ohm or 0.33 Ohm.

Those on the board are 22 Ohm (the last digit 0 represents the number of zeros, and zero zeros is no zeros so just 22)

[Audiorepair]

R220 is 0.22 Ohms.
https://kiloohm.info/smd4-resistor/R220

220 is 22 ohms.   (22 with Zero Zeros after it)