Search found 2 matches

by Alex
Thu Jun 17, 2021 1:48 pm
Forum: General Discussion
Topic: burnt Roboclaw 2x7A repairs
Replies: 2
Views: 3672

Re: burnt Roboclaw 2x7A repairs

Thank you very much for a reply. I've ordered a replacement board, but will try to restore that one too. Unfortunately a4940 are already discontinued, so we'll see if we have luck. Only one chip has a burn mark, so probably it's not that bad. Generally, you have a very nicely designed board at a rig...
by Alex
Sat May 29, 2021 1:32 pm
Forum: General Discussion
Topic: burnt Roboclaw 2x7A repairs
Replies: 2
Views: 3672

burnt Roboclaw 2x7A repairs

Hello, Because of my carelessness I reversed +/- and burned 2x7A. Actually, the RC is not completely dead, it is detected by PC, flashes LEDs, etc. The visible damage are two current sense resistors, which burned almost to ashes. I am going to replace them and see if the problem will resolve. Howeve...