Hello,
Today I sadly had the idea to update the cable that goes from the DC power to the Rumba board, I switched the polarities by error and when I turned on the printer I saw a smoke puff. Quickly I turned it off, found the reversed cables and placed them correctly.
Now the LCD does not lights up, the board does not show any other light blinking or on. I have checked the Rumba board and I can see a small black cube marked with an "M7" burned, I think it is a M7 diode but don't know for sure:
![21bqger.png]( "21bqger.png")
Did you have a similar issue in the pass and there is any quick solution to fix the board?
Could anyone point me out what this small thing is in order to try to buy a new one and solder it?
I hope I can fix it instead of having to buy a new one... I'm so sad about it because before everything worked flawlessly.
Thanks in advance =(
Today I sadly had the idea to update the cable that goes from the DC power to the Rumba board, I switched the polarities by error and when I turned on the printer I saw a smoke puff. Quickly I turned it off, found the reversed cables and placed them correctly.
Now the LCD does not lights up, the board does not show any other light blinking or on. I have checked the Rumba board and I can see a small black cube marked with an "M7" burned, I think it is a M7 diode but don't know for sure:
Did you have a similar issue in the pass and there is any quick solution to fix the board?
Could anyone point me out what this small thing is in order to try to buy a new one and solder it?
I hope I can fix it instead of having to buy a new one... I'm so sad about it because before everything worked flawlessly.
Thanks in advance =(