problemaddict
New-ish here
Hi all,
I have an older Infineon clone, a Xie Chang I think it's the manufacturer. I hooked it up to a Kuberg Freerider in working on. I ride the bike up and down the driveway a few times. Running smooth, but sometimes cuts out at full power. I ride it into the garage and hooked it up to the laptop and tried to download the settings with the XPS software.
I noticed the controller was pretty warm. But not hot.
The laptop never connected to the controller.
Unhooked the laptop. Connected the bike back up and the controller is dead.
My ebike tester shows the 5v circuit is good, but the throttle does nothing, no lights on the tester light. Tried two known-good throttles. Nothing.
So anyway, is been a while since I played with one of these controllers. There's no fuse internally. They're no sign of burnt components. What other failure indicators would there be? I don't see a reset pin.
Do I have to unsolder all the Fets in order to test them?
Any other diagnosis advice you could give?
Thanks!

I have an older Infineon clone, a Xie Chang I think it's the manufacturer. I hooked it up to a Kuberg Freerider in working on. I ride the bike up and down the driveway a few times. Running smooth, but sometimes cuts out at full power. I ride it into the garage and hooked it up to the laptop and tried to download the settings with the XPS software.
I noticed the controller was pretty warm. But not hot.
The laptop never connected to the controller.
Unhooked the laptop. Connected the bike back up and the controller is dead.
My ebike tester shows the 5v circuit is good, but the throttle does nothing, no lights on the tester light. Tried two known-good throttles. Nothing.
So anyway, is been a while since I played with one of these controllers. There's no fuse internally. They're no sign of burnt components. What other failure indicators would there be? I don't see a reset pin.
Do I have to unsolder all the Fets in order to test them?
Any other diagnosis advice you could give?
Thanks!

