As per my other thread - I have a stuck on bumper. I've ordered a replacement transistor (FQP13N10L) thinking its possibly that... But until it arrives im exploring other possibilities.
(And wanting a better understanding of how it all works)
I gather that the bumper can be fired 2 ways.
1 is by the MPU saying "Trigger the bumper" as it does in diagnostic mode for example.
1 is when the switch that's closed by the ball rolling over the bumper deely at the bottom of the bumper is closed
Also from what ive read there are 2 switches underneath.
One is to trigger the solenoid as per above, and the other is closed when the solenoid fires and the thing actuator thing hits it and awards the score.
Presumably if the transistor is dead it mean its always going to think the MPU wants the solenoid on - so thats the most likely cuplrit ?
How is the switch wired to fire the solenoid - does it just a signal back to the MPU which then triggers it or is it wired directly ? (Probably sounds like a stupid question ... certainly will when you know the answer )
(And wanting a better understanding of how it all works)
I gather that the bumper can be fired 2 ways.
1 is by the MPU saying "Trigger the bumper" as it does in diagnostic mode for example.
1 is when the switch that's closed by the ball rolling over the bumper deely at the bottom of the bumper is closed
Also from what ive read there are 2 switches underneath.
One is to trigger the solenoid as per above, and the other is closed when the solenoid fires and the thing actuator thing hits it and awards the score.
Presumably if the transistor is dead it mean its always going to think the MPU wants the solenoid on - so thats the most likely cuplrit ?
How is the switch wired to fire the solenoid - does it just a signal back to the MPU which then triggers it or is it wired directly ? (Probably sounds like a stupid question ... certainly will when you know the answer )