K8200 does not start power issue

K8200 3D Printer K8200 - Wiring and electronics
1

Hey there.
I have a bit of a problem.
When I connect the USB to my computer the red and green LEDs on the main board light up.
When I connect the Power supply to the main board, both LEDs shots off. I can hear that the connection via the USB as my computer plays a small tune when a device is connected to the computer via the USB.
But when starting the Repetier I cannot connect at all.

I have measured the old power supply and it deliveres 14.58 VDC.
I have bought a new power supply and it deliveres 15.5 VDC.

Any help is welcome I believe it to be a fault on the main board, but does anyone know what the different LEDs are indicating ???

Regards Thias Russell

2

Can it be you switched the polarity on the 15V input?

3

No the power should be correct. The center pin i + 15VDC.
as it allways has been.

Regards Thias

4

Solution to this problem was that for some reason I don not know the COM4 did not work.
When I in the device manager disconnected the USB to the printer the COM4 disconnected, and when I connected it back to the computer it came up again.
i then simpply change the COM setting to COM20 and made a reboot of my computer and Repetier have been able to connect ever since.

Regards Thias Russell
So a simple COM port issue.