My Bafang DPC245 display suddenly went blank right after a ride. Connection was fine, tried connecting it to the Besst tool, but it didn’t respond. Having no other way to test it, I took the risk and cracked it open. To my surprise, it came back to life when a 5V supply was fed directly to the board. Incidentally, I noticed that the input supply from the Besst tool initially feed 5V for a few milliseconds before dropping straight to 3V. Is there a possibility a transistor might be failing to pick up the 5V signal at the start or something else?! I’d appreciate any input on how to troubleshoot and identifying the root cause. Thanks.
SOLVED: Bafang DP C245 Troubleshooting
- Thread starter RobbyC
- Start date
I managed to pinpoint the root cause of the failure. There was a faulty ferrite bead which was positioned on the front (connected to 38VDC input line)and in series with a resettable fuse. Ferrite bead took the blow before fuse could react. I resolved it by shorting the bead and boom it's back online!!
