Hi all,
Super newbie here! I have been dabbling in electronics repair, circuit board repair, and coding for only a short time.
I recently bought a used Echelon connect Cycle bike that worked but only for a short time (not under warranty). I thought I could fix it no problem, did some troubleshooting, got a new motor, but still no. I turned my attention to the circuit board which is where I found the burnt medium transistor (first photo). The full identification on this bad boy is utcrltf 2sd882l.
I found a SD882 Trans NPN 30v 3A SOT32 from Digikey and ordered it. I took out the old transistor and soldered in the new one. Plugged everything back in and the transistor slowly started getting hot and I could smell it. I turned it off, there doesn't seem to be damage to the new transistor but I think if I left it on there would have been. I did hear the beep and saw the light that turns on on the bike console so some parts are working. I have more photos of my work with the new transistor, my only thought is maybe I should have cleaned the old burn spots better?
This is the extent of my knowledge, I have no idea how to troubleshoot past this point. Any ideas? Am I way out of my league here?
Thanks in advance!
Super newbie here! I have been dabbling in electronics repair, circuit board repair, and coding for only a short time.
I recently bought a used Echelon connect Cycle bike that worked but only for a short time (not under warranty). I thought I could fix it no problem, did some troubleshooting, got a new motor, but still no. I turned my attention to the circuit board which is where I found the burnt medium transistor (first photo). The full identification on this bad boy is utcrltf 2sd882l.
I found a SD882 Trans NPN 30v 3A SOT32 from Digikey and ordered it. I took out the old transistor and soldered in the new one. Plugged everything back in and the transistor slowly started getting hot and I could smell it. I turned it off, there doesn't seem to be damage to the new transistor but I think if I left it on there would have been. I did hear the beep and saw the light that turns on on the bike console so some parts are working. I have more photos of my work with the new transistor, my only thought is maybe I should have cleaned the old burn spots better?
This is the extent of my knowledge, I have no idea how to troubleshoot past this point. Any ideas? Am I way out of my league here?
Thanks in advance!
Attachments
-
1.8 MB Views: 17
-
1.8 MB Views: 17
-
2 MB Views: 13