Control board causes interference via USB
Posted: Sun Nov 03, 2019 10:21 am
When I have my I3 Pro C with a GT2560 A+ controller connected to my PC via USB I see lines of interference running up the monitor !!
Its almost like mains hum.
If I power down the printer or unplug the USB it disapears.
I tried removing F2 from the controller but it made no difference (it did stop the controller being powered from the PC which seems a good idea).
The printer and the PC and the LCD monitor are all plugged into the same wall socket.
Any suggestions ??
Could it be a ground loop ??
TIA,
Dave
Its almost like mains hum.
If I power down the printer or unplug the USB it disapears.
I tried removing F2 from the controller but it made no difference (it did stop the controller being powered from the PC which seems a good idea).
The printer and the PC and the LCD monitor are all plugged into the same wall socket.
Any suggestions ??
Could it be a ground loop ??
TIA,
Dave