Tools screwdriver, tiny flathead, solder gun (make sure it is of the right heat), and most important DESOLDER BRAID this will easily help you in removing the old encoder.
Unscrew screws that hold cover together
Pop cover off also remove the rubber pads.
You will want to remove the entire board to the right
To do that simply remove these connectors the ones in red you will need the tiny flat head to work the connectors out GENTLY dont force it out. you will want to wiggle it back and forth till they come out.
Close up of the connectors to the top left of the board
To remove the bottom connector just take your thumb on one side and pointer finger on the other side and pull out slowly till the piece that holds the strip comes out. Like so...
Once youve got it all dissconnected go ahead and unscrew the board from the mpc. One of the screws (i believe it is the top right screw has a ground connected to it. just remember to screw the screw back with the ground connected. Once youve unscrewed it all it should come up and out like so
Now go ahead and plug your solder iron in.
Flip the board over to the green side and located where the encoder is should look like this the ones circled in black are the ones you want to desolder
So carefully desolder the encoder if you are not sure how to solder then see if you can find someone that does know how to help you.
Now resolder carefully the new encoder and reverse the steps connect the board put the case back on and you should have a working data wheel again.
I got two Casio FZ1 (build in the 80s) a s950 and two s900 (build in the 80s) and a MPC2000 build somwhere beteen 97 and 2000. All of these machines went thru different hands (bought all on ebay). None of these machines has a broken encoder. Some buttons need to pressed a bit harder but everything work.
