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bigtreetech / BIGTREETECH-SKR-V1.3

32bit board with LPC1768, support marlin2.0 and smoothieware, support lcd2004/12864, On-board TMC2130 SPI interface and TMC2208 UART interface no additional wiring is required
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skr 1.4 turbo is very weak #443

Open labotecno opened 3 years ago

labotecno commented 3 years ago

i have 2 board with the same problem , i try to update marlin firmware from usb and get died and burn the sd memory too . bilan i cant use it because with 12v 24 v jumper is not reconize anymore the serial usb , only with 5 v jumper is working but dont have enough power to make it working the printer ... i look for the board and i feel heat on the part of pcb looking is a short circuit ... i have skill to solder i need the shematic of this board if someone have problem like me can you add your issue bbt can you give me a hand to repair the board ? thank you

rocketkittens commented 3 years ago

I would like BTT to explain if it is safe to power the board with 12v and connect the board to USB at the same time because thats where it ends with smoke for me.

labotecno commented 3 years ago

I would like BTT to explain if it is safe to power the board with 12v and connect the board to USB at the same time because thats where it ends with smoke for me.

usualy its working , and reconize the port com to the computer , be carefull to never use usb mode jumper !i think the problem is about this line ... i try to see what is the smd component is frying .... to repair two board with the same issue .

Rincewind08 commented 3 years ago

for me it was the proximity of the plug and the little ic above it for communications, somehow the plug overheated so bad (under serious air cooling ) that the 6 leg ic above the turbo's usb port's legs melted.