Hello,
I have a problem with AXIS version with heatbed an dual extrusion. I did a few successful prints but today suddenly the main power supply went wrong. Screen went black, motors, everything turned off suddenly. Main power adapter light was somehow dimmer. I checked both power adapters and cables are ok. The computer board works when connected via USB. The Marlin software starts. But it doesn't start when power plugged in. Only I've noticed that the no matter which power adapter I use the light on the adapter is dimmer as if there was some weird power consumption from the device.
I checked the cables inside if anything was loose, I disconnected power cables from board, connected again like in tutorial but it seems like something is wrong with the board itself.
Please advise how to check whats the reason of malfunction.
Hi,
Thank you very much for the answer! This step by step instructions should be handy any time I have problems with printer.
I checked once again the mainboard visually, chcecked the cables if anything didn't go loose while printing. I didn't start to disassemble since it worked fine for few prints. And I found the source of malfunction. Its the A4988 Stepper Driver where the capacitor burned. I don't know why. But since there is a spare one in the box I could easily replace this one.
Everything now works fine. Except dual printing but that's another case.. still the printer can't really replace the filaments correctly. Always one of them gets stacked.
Thanks again. Just to show below there is an image of burned capacitor /dark smudge on the soldering/ on the driver.