Geeetech

suddenly 3 d printer died - . before first printing, but bed and both extuders were fully functional. LCD originally working O.K. is giving light but no symbols are seen in case after USB connection. No light of LCD without USB cable only on PSU cable. PSU connection doesnt have any effect oo 3D printer-. no light on motherboard , no sound of motherboard or extruder, or LCD With usb connection I see 3d printer in repetier software - I am attaching error log and picture of light on MB , in case of connection with USB - look at attached photo. What is wrong ?

hi，did led of psu light up?and are the fuses ok ?

no. these lighs are off. I havent tried fuses- and must admitt that I dont know how. Should I remove them manually and look for what ? blackish area ? Or should I do some measurement ? sorry for my technical dumbness. RZ

Can You give me type of fuses ? I will try to shop them and replace anyway - this is probably fastest way .I hope that these items will be avaiable in my country. THX RZ

rzahora wrote:no. these lighs are off. I havent tried fuses- and must admitt that I dont know how. Should I remove them manually and look for what ? blackish area ? Or should I do some measurement ? sorry for my technical dumbness. RZ

hi,is there any trace of burned on 2 fuses.if the left led is not lighted up,it means psu can not power up main board.if both fuse are ok,maybe it's psu problem.could you upload a picture of mainboare being power up.
first of all ,please check the 2 fuse.you can test them with multimeter.

both fuses were blown up. THX