Just installed my upgrade kit last night. It went pretty smoothly but I did find a number of things missing/incorrect in the installation instructions. The online version of the document is the same.
Here are my corrections:
Step 0: Label all connectors currently attached to the CPU and sound boards, before removing them from those boards. Also: Don't forget to remove the balls from the game, to avoid damage when you later raise the playfield.
Step 1A: Remove the speaker panel from the game.
Step 3: The "90" references should be "90 degree". Change "relocate" to "reinstall".
Step 4A: Route the two new cables up into the backbox.
Step 6: Before installing the FAST board in the backbox, locate the mini-USB port (to be connected in Step 9) and test fit the cable to it. (It is very difficult to do later, due to clearance in the backbox.)
Step 7A: Connect the power connector (J210) to the FAST board.
Step 8: The switch connectors are to be attached to the FAST board, not the PINSOUND board. Note: Connectors J206 and J207 are interchangeable, as are J208/J209.
Step 11: The HDMI cable attached to position 1 should go to the main display board. The USB cable at position 3 comes from the mini-display on the playfield.
Step 13: The speaker panel connector is not ORANGE. (At least it wasn't in the kit I received.)
Step 16: When powering up, the two displays may appear frozen for a while. After a minute or two, things clear up and you can play the game.
I hope this helps.
Steve
Note: There is a cable and remote control included with the speaker panel. Some kind of instructions should be included for them.