Page 1 of 2
My Rumba my be fired?
Posted: Tue Jun 30, 2015 10:32 am
by somedud3
I recently bought a rumba controller board and had it up and running for a short time when all power towards the hotend and fan connector stopped working. Stepper motors are still operational and the hotend and fan controllers are only half lit when code is sent to them. All their voltage read zero.
Re: My Rumba my be fired?
Posted: Tue Jun 30, 2015 2:48 pm
by zhangxueyou
Stepper can be controlled, it means the MCU of rumba is fine. Was everything fine before?
And, when you test the voltage, the black pen of multimeter should touch GND on PSU, rather than the "-" plus on fan connector, so as for hot bed and hot end.
Re: My Rumba my be fired?
Posted: Wed Jul 01, 2015 2:23 am
by somedud3
OK Fan0 reads 18v and HE0 reads 24v
Re: My Rumba my be fired?
Posted: Wed Jul 01, 2015 8:01 am
by somedud3
Ok Fan 0 reads 18v and HE0 reads 24v. I've tested the fan with an external power source and it work so I don't believe the fan or hotend is fired.
Re: My Rumba my be fired?
Posted: Wed Jul 01, 2015 10:31 am
by zhangxueyou
These pins need jumper caps:
- QQ图片20150701100412.jpg (97.32 KiB) Viewed 17160 times
If the setting voltage of fan is 12V, plug the jumper cap to the slot highlighted in the picutre. If it's 24V, plug jumper cap to the bottom 2 pins.
Re: My Rumba my be fired?
Posted: Wed Jul 01, 2015 2:09 pm
by somedud3
That is what I have, but another problem came up while transporting the board. One of the M7 fried, so I will try to repair that and see.
Re: My Rumba my be fired?
Posted: Thu Jul 02, 2015 2:02 pm
by zhangxueyou
somedud3 wrote:That is what I have, but another problem came up while transporting the board. One of the M7 fried, so I will try to repair that and see.
M7? Is it diode?
Re: My Rumba my be fired?
Posted: Thu Jul 02, 2015 4:02 pm
by somedud3
Yes it is one of the M7 diodes above the square 5A orange capacitors
Re: My Rumba my be fired?
Posted: Thu Jul 02, 2015 4:04 pm
by somedud3
The one on my board says M7 so I believe its a M7 ln4007
Re: My Rumba my be fired?
Posted: Fri Jul 03, 2015 10:12 am
by zhangxueyou
Could you please tell me which M7 is fired.