cantfindausername 0 Posted June 28, 2020 Hi all, I've just picked up an 721 plotter that has a fault. When it is powered on the display screen and lights blink quickly and it sounds like the cutter head is trying to move but can't. Does anyone have an idea of where the problem might lay? Happy to provide a video if it helps. Thanks in advance. Share this post Link to post Share on other sites
Dakotagrafx 7,297 Posted June 28, 2020 I can't remember if that is the mainboard or the power supply or both - finding them could be your biggest obstacle if it is one of the first 2 generations of MH plotters - they have used around 4 different mainboards now that are not interchangeable Share this post Link to post Share on other sites
slice&dice 2,450 Posted June 29, 2020 On 6/28/2020 at 5:36 AM, cantfindausername said: Hi all, I've just picked up an 721 plotter that has a fault. When it is powered on the display screen and lights blink quickly and it sounds like the cutter head is trying to move but can't. Does anyone have an idea of where the problem might lay? Happy to provide a video if it helps. Thanks in advance. Where did you 'pick it up' from? A dumpster? For $287.95 you can grab a functioning (refurb 34") unit from the USCutter warehouse. Share this post Link to post Share on other sites
