Hello. Hopefully someone can help me.
I bought a used ultimaker 3 about a month ago. I replaced the led light strips as they were turning yellow. Also replaced the front screen due to burn in. All has been well since with many prints successfully. Last night I turned the printer off, and now today it wont turn back on. I checked the following:
Made sure all cables were secure
Tested power supply for 24v
No signs of burn marks on white control board
Green led on white board and red led on olimex board come on
Tried plugging in a HDMI cable to my TV, nothing
Tried making a boot disk per gr5 instructions, nothing
Fan comes on for 3 seconds after switching power, but nothing else works, completely dead
I just ordered an olimex cable but not confident that will help anything