Geeetech

The last five month my Mecreator2 worked without any problem. Today I switched it on and on the display are shown two lines with blocks. The whole day I searched the net to get the printer run, but nothing helped - but I really have no idea about it.

After all I think the GT2650 Rev B board might be defect, but I do not find a shop, where it is sold.

Hi,as to LCD issue,here is a related post you can refer to:http://www.geeetech.com/forum/viewtopic ... 23&t=17040

Many thanks for Your fast answer William. After trying around for several hours I don't think it is an LCD issue. Since two days I cannot connect the printer to Simplify3D and it worked fine before.

I thought to try to play new firmware on the printer and tried to connect the GT2560 Rev B to the Arduino IDE and get the message "unknown board". Some other Arduinos work fine mit my mac.

Is there any way for me to check if the GT2560 is okay?

Could you send some pictures which the control board is power on?

Here it is. One of my problems is that I don't find the GT2560 Rev B documented or sold anywhere. Thank You for Your answers.

Does anyone know, if it is correkt, when this three LED are shining?

rabe wrote: Tue Jun 20, 2017 8:24 am Does anyone know, if it is correct when this three LED are shining?

The three LED lighting show the necessary power 12V,5V is fine so that the control board can work properly.