I have a Ten High 6040 50W laser cutter that I have been using for the past 5 years. The other day it would not connect to my computer. I tried to reload K40 Whisper and the drivers, but it could not detect the controller.
No difference with a different computer and USB cable, so likely the controller board.
On removing it, it is a red Lihuiyu Studio Nano, as shown below.
I have an M3 Nano Plus motherboard from when I had to replace the Control Panel last year, but the pin-outs are different.
It looks like I will have to re-pin the X & Y stepper motors as my old board is in the sequence B-/ B+/ A-/ A+ rather than A+/A-/B+/B- due to the different connector housing.
The Power connector is the only one that I do not have - can anyone advise what connector I need for the M3 Nano 4-pin 24V/ 5V connector?
Any other considerations in swapping out the controller board?
I can’t help with the power connector because I don’t have one of those boards, but — test whether you actually need to re-pin steppers before doing it; it might just be a disagreement in labeling convention.
I expect the virtual comm port IC to cause the problem. It could be one of these: SSOP-28 USB Interface IC – Mouser. Can you supply a picture with readable text on the IC’s
You can see whether the micro controller is still okay or not, by watching the LED’s during startup. When they flash in any sequence during startup I expect the controller to be good. When a static discharge occurred, it is likely that the large IC with dual in-line pins is defective. Because that one is in between of the connector and the controller it had to absorb the blow.
Luckily that chip doesn’t need programming but you’ll need quite a bit of experience to replace that.
