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find it the brige, but the MC dont work anymore sure the dc to dc part dont work :(((

anyone can fix the MC? or have a MC board to sell ?

of course I have lithium batteries to fit that's what I wanted to do today but the scooter didn't turn on

anymore from 3 weeks ago ... i detached al connectors on the board and the positive stll on the frame, the positive from battery to fuse is ok so is the board i think it touch behind some where on the frame do you think is that possible ?

I discovered another thing that seems strange to me the positive passes in the frame of the scooter

is it possible to check the fuses (the old ones soldered to the board) without disassembling the MC?

I was wrong to write in the previous post pin 2 and pin 3 0 volt pin 4 and pin 12 (KEYSW + and -) 5 volt 

120v and connected to the power supply the 200 amp fuse is good the strange thing I found in my controls is that the 12volt on the j22 connector between pin 2 and pin 3 is only 5 volts