Maintenance Instruction
3-d. (Replacing main board):
Open the base button, take out the flat cable; take out the six screws and the small main board, as shown
below:
3-e. (Replacing main board):
Take out the four screws, metal plate and battery, see below pictures:
Take out the six screws
Open the base button, take out the flat cable
Take out the four screws
Small main board
