I've been reading through so many posts trying to solve my own issue, but can't seem to find a definitive answer. For the da Vinci Duo 2.0A specifically, is there a separate fuse besides R271 for the second extruder (right side)?
I initially blew my right extruder with the brass brush. I lazily just switched to the left extruder from then on until one day when that one blew as well (for no obvious reason though, no brass brush involved). I went ahead and bridged R271 and added an inline fuse and that repaired the left extruder.
I had read somewhere that R272 was for the right extruder but that fuse actually tests fine so I don't want to try to solder that for no reason. It has continuity across it. Also, while I was testing for continuity, R271 seems to be connected to R272 anyway. Is that normal? Can anyone check theirs if it's not too much trouble?
Does anyone know what fuse number is really used for the right extruder? Is it actually R272?
All I know is I don't have 12v coming out of the right extruder's connection on the board when I have the extruder attempting to heat up. I measured right on the board. The wiring itself, connectors, thermistor, etc. all seem to be in working order otherwise. Just no power coming out of the board for that right extruder.
I added a pic of my board. You can see my burnt up repair on R271. It's not pretty but it did work.
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