hi,
I accidentally reverted the battery polarity on the ZK1218 controller for a Razor powerrider 360 when replacing a new battery .( my kid is left without his favorite ride now )
And so even if I re-installed the battery with correct polarity the pushbutton throttle doesn't start the motor.
I don't have the schematics or wiring diagram of the controller so it's time consuming to trace down the parts to fix this.
So far, I was able to locate the input cap(1000uf) that has a bulged top as a result of my goofing and replaced with a 470uf cap that I have laying around. I de-soldered the MOSFET and checked for S-D impedance and it seems to be functional as open when G-S is polarized and 0ohm when G-S is discharged.
There is a Shottky Diode that uses the same heatsink as the MOSFET but I don't know its purpose and don't know what to test on that.
There are also a few other low power diodes on the circuit board but they checked out all good.
There are two other 3-lead surface mount on the board that look like some transistors but because of its size, I am not sure how to test those either. Same with one 8-lead surface mount IC.
Any help would be appreciated.
thanks.
I accidentally reverted the battery polarity on the ZK1218 controller for a Razor powerrider 360 when replacing a new battery .( my kid is left without his favorite ride now )
And so even if I re-installed the battery with correct polarity the pushbutton throttle doesn't start the motor.
I don't have the schematics or wiring diagram of the controller so it's time consuming to trace down the parts to fix this.
So far, I was able to locate the input cap(1000uf) that has a bulged top as a result of my goofing and replaced with a 470uf cap that I have laying around. I de-soldered the MOSFET and checked for S-D impedance and it seems to be functional as open when G-S is polarized and 0ohm when G-S is discharged.
There is a Shottky Diode that uses the same heatsink as the MOSFET but I don't know its purpose and don't know what to test on that.
There are also a few other low power diodes on the circuit board but they checked out all good.
There are two other 3-lead surface mount on the board that look like some transistors but because of its size, I am not sure how to test those either. Same with one 8-lead surface mount IC.
Any help would be appreciated.
thanks.