Tmulholl wrote:

I suspect I have caused my printer to burn out those resisters.  I have measured resistance of my heater at around 4 ohms so that is good.  I have disconnected the heater connection by the extruder at power on at around 10 volts but it drops quickly to zero so I suspect the resisters to be bad.  Could these actually be small amperage fuses and if so, does anyone know how much the fuse is rated for.  I have not yet pulled the board to check them but this happened right after I had used the brush.

They are zero ohm resistors. Not fuses but used as fuses. You can get them on Mouser.com. You just need the correct physical size.

All fixed.  It turns out that when the temperature down to 10 degrees C that the circuitry probably  assumed a bad sensor so no power was applied.  I brought it upstairs to work on it and all of a sudden, I was getting a heater to operate.  Thanks for the help.

Hi mate, here is the board.

Hope this helps, this machine is just a paper weight and XYZ RMA won't assist as it's just over the 2 years.

Can you get one closer so all the text can be read? Maybe two doing half in each pic.

Hope this helps, this machine is just a paper weight and XYZ RMA won't assist as it's just over the 2 years.

Hi Carl, Do you know what resisters cover the DRM - for filament info and nozzle serial? As my Super has blown the fuses but which one I dont know lol

They should be near the connection for the EEPROM contact harness. If you post an good image of the board I can maybe help find them.

I suspect I have caused my printer to burn out those resisters.  I have measured resistance of my heater at around 4 ohms so that is good.  I have disconnected the heater connection by the extruder at power on at around 10 volts but it drops quickly to zero so I suspect the resisters to be bad.  Could these actually be small amperage fuses and if so, does anyone know how much the fuse is rated for.  I have not yet pulled the board to check them but this happened right after I had used the brush.

They are zero ohm resistors. Not fuses but used as fuses. You can get them on Mouser.com. You just need the correct physical size.

So I tested the 3 resistors in the picture finally, all of them give me a reading of 0 or almost 0 on the 20k ohm setting of my multimeter. I am assuming that means they are not the culprits.

are there any other components/connections i can test or try to replace myself that might be responsible? I don't really know what i'm looking for while troubleshooting. And i am close to taking it to a repair shop but really would like to try doing it myself if i can.

I've tried dealing with xyz printing yeah, they just want me to send them my old board just to be able to purchase a new one. And since I'm running repetier, that's a no-no.

I was hoping another ramps controller would work, and i would be willing to take the time needed to figure out what is what but i do not inherently know how to or have a diagram to show me what is what on the davinci. Is there one available?

I have never replaced a resistor, but a quick google leads me to believe it is not that hard even for a beginner. Looks like it is just basic soldering? I do not know what type of resistor i would need to replace it with though.

There are wiring guides for the RAMPS. It's just a matter of fining the wires in the Da Vinci to connect to the RAMPS. There are some guides here on doing it. As for the resistors they are zero ohm surface mount.

I was hoping another ramps controller would work, and i would be willing to take the time needed to figure out what is what but i do not inherently know how to or have a diagram to show me what is what on the davinci. Is there one available?

I have never replaced a resistor, but a quick google leads me to believe it is not that hard even for a beginner. Looks like it is just basic soldering? I do not know what type of resistor i would need to replace it with though.

Replacing resistors is something I would not know how to do, no.

Would replacing the motherboard be much more difficult than just getting a new one and routing each cable into it? I will test those resistors when I am able to.

If you where able to get the same board which is unlikely unless you can buy it from someone who is parting theirs out then yes it is easy. just mount it and reconnect the cables. Good luck though as XYZ will not sell a board. If you replace it with a RAMPS or other controller then you would have to trace each wire to figure out it's purpose and then know where to connect said wire s to the Ramps or other based on the wires purpose and a wiring diagram.

Would replacing the motherboard be much more difficult than just getting a new one and routing each cable into it? I will test those resistors when I am able to.

If you have a multi meter or can get one you need to take a resistance measurement across each of these with no power applied to the board. If they measure high then they will need to be replaced. Which I am guessing it beyond your skill  set in which case the board is toast and will need to replaced with same or different which is even more tedious.

If they still measure low then there is another issue and there is a short somewhere in your measure that is shorting 12volts to ground.