I opend it, almost damaged
(damaged a bearing maybe 2 and a bit at the coupling point of the shaft) but the good news is that i solved the problem.
The wires are connected as follows:
KOKUSAN DENKI FH7-1561 TL0146
Red Phase A
White Phase B
Blue Phase C
Green Hall A
Gray Hall B
Orange Hall C
Black Gnd
Yellow Vcc
Brown I'm not sure yet, it comes from an output from a C358C amplifier (can't take the PCB away, and don't want to cause extra damage). Here begins my questions I doubt about a part marked as "
04S" looks like a mini photo switch, but both sides pointing up and kind of having a resin on top instead of acrilic pointing to an encoding washer stuck to the surrounding magnet (then i'm not sure if it's a kind of hall sensor or similar, or it's a photo switch the washer is chrome then reflecting) I don't have a camera here, i would had included photos.
Then, if i'm right the 3 hall chanels outputs are enought to control it as a servo, then what is the purpose of that extra sensor ???
I hope that post will save time to someone in the future.
tschüss