Hi all...
I have recently purchased a 2010 vintage Smarta LX. Although like new, it has a fault, in that when you turn on the battery, the wheel spins up for a second, (with no obvious input) then all the power cuts off.
I have found a blown capacitor in the controller box, replaced, but life it not always that simple !. There are a couple of other components I would like to change, but without circuit diagrams to identify the devices, I am at a dead end.
My background is in Mechanical Engineering, though I have had experience in electronics, it has been mainly in build, and following test procedures. Hence my electronic knowledge is limited.
I have totally stripped down the front hub, a brushed motor, and found excess carbon dust build up in the commutator segments, which may have led to the original fault...? The hall sensor for the pedal assist seems to test out ok.
I have assumed that a good starting point would be to replace the controller unit. I cannot however find one that offers the functionality of the Smarta three level select for the pedal assist function. I do wonder, also, reading that riding the bike with no power, is "like riding through soft sand", if it would be an idea to replace the front hub, and get a suitable controller as well....
I would very much appreciate any kind suggestions on my current line of thought, and any suggestions for sources of a direct replacement controller for my Smarta.
I have recently purchased a 2010 vintage Smarta LX. Although like new, it has a fault, in that when you turn on the battery, the wheel spins up for a second, (with no obvious input) then all the power cuts off.
I have found a blown capacitor in the controller box, replaced, but life it not always that simple !. There are a couple of other components I would like to change, but without circuit diagrams to identify the devices, I am at a dead end.
My background is in Mechanical Engineering, though I have had experience in electronics, it has been mainly in build, and following test procedures. Hence my electronic knowledge is limited.
I have totally stripped down the front hub, a brushed motor, and found excess carbon dust build up in the commutator segments, which may have led to the original fault...? The hall sensor for the pedal assist seems to test out ok.
I have assumed that a good starting point would be to replace the controller unit. I cannot however find one that offers the functionality of the Smarta three level select for the pedal assist function. I do wonder, also, reading that riding the bike with no power, is "like riding through soft sand", if it would be an idea to replace the front hub, and get a suitable controller as well....
I would very much appreciate any kind suggestions on my current line of thought, and any suggestions for sources of a direct replacement controller for my Smarta.
