Duet 3 6HC rev. 1.0 - Resistor R191
can someone please tell me what kind of "resistor?" "R191" on Board rev. 1.0 is?
I read in the documentation that it has 47ohm and in know it has the letters "IR0J" on top from another identical board. But i couldn't find this kind of reistor online.
My R191 resistor is burned and i want to resolder it.
sry for my bad english ^^
R191 on MB6HC was a 0R resistor. But it's unlikely to burn out unless the TMC5160 driver chip and the mosfet that it is connected to have also burned out.
@dc42 thanks for your answer
But this image is from 0.6 schematic, my board is based on 1.0 schematic.
In 1.0 schematic R191 seems to be a 47ohm resitor.
Looking online for smd resistors, turned out to be very difficult with basic knowledge.
(there are a crazy different amount of resistors online with 47ohm)
Does R191 have some special requirements on volts, amps?
(sry I really have no idea what kind of attributes or format they have ^^)
Could have been my bad... maybe i moved the XY gantry too much and too fast, which is connected over a "pulley-coreXY" system (FcoreXY) to 0.9 Motors. I forgot to disconnect the motors from the Board and the back EMF together with switching the printer on right after moving the gantry by hand could have been too much.
@weaiko it's nothing special, just a 0R or 47R resistor in 0402 package.
I suggest you check the mosfet it is connected to for a short between gate and source or drain.
@dc42 oh no! Big mistake..
It isn't R191, it is L8! ..it should be be the same part as L2 or L10.
Am I right this is a inductor with 1kohm @ 100mhz?
Do you have any idea where i can get a "spare inductor" or if there are other relevant attributes? To find something similar turned out to be nearly impossible.
It's a ferrite bead with impedance 1K @ 100MHz. But I can't see any way that it would burn out, short of a bare 24V wire or something like that touching it.