Geeetech

Maybe the mosfet Q5(which controls the PWM signal) on the board was broken.And the voltage should be 12V when controlling it to 100% in Repetier Host.

Only English.

gpau wrote: it seems strange that all three endstop are broken.

Probably not...You can check if you have endstops correctly connected(X-1,Y-3,Z-5),have a look at the following picture:

You can send the commend "M106 S(0~255)" then measure if the voltage has changes on PWM_Fan slot.

gpau wrote:i,
I put the new marlin, but now for the X-axis should not be more right, is on the contrary.
In the opposite direction to home

You may want to read this:
http://www.geeetech.com/forum/viewtopic ... 17&t=17037

Alain74270 wrote:I have already replace this firmare to this "marlin pi3 pro-b". is it correct ?
Don't work anyway

Maybe it's the knob on the LCD has a problem?Didn't you contact the seller?

Hi there My control board has failed it is a GTx2560 board with my Geeetech Prus I3 x brought on 30 of may 2016 what has happened is the connection to the hotbed on the board has burnt out and has failed. i have attached photos. it suddenly happened during a print where the bed was set to 70c. befo...

The user manual states how to make the software Repetier Host,and as for the video,here are some videos about 301,you can refer to the building video of G2s in some places:
https://www.youtube.com/user/geeetech/videos

And how the heating issue goes after you unplug all the stuffs on the board?

@MarceloSilva
Hi,
As far as i know,Geeetech is on their vacation(Chinese National Day).
I think you can contact the sales(sales@geeetech.com) to have the replacement for the broken parts if you've verified it,and
i believe you will get response from them soon.