Yamaha MU100 Service Manual page 9

Installing a Plug-in Board into the MU100
Warning
Installation and removal of a plug-in board into/from the MU100 initializes some of the setup and multi-
part settings of the main unit. Be sure to save any of your important settings onto a personal computer or
MIDI Data Filer MDF3 before installing or removing a plug-in board.
CAUTION!
Be careful not to injure your hands or fingers while installing or removing the plug-in board.
Be careful not to injure yourself when handling the jagged surfaces or sharp areas of the plug-in board.
Instructions
1. Turn off the power of any devices that may be connected to the MU100 and remove the MU100's AC adaptor from its
power source.
CAUTION!
Accidents can occur if the plug-in board is installed or removed while the AC adaptor is connected to a
power source. Be sure to unplug the AC adaptor of the MU100 before installing or removing the plug-in
board.
2. Turn the MU100 upside down.
Remove the DB cover by removing the four (4) silver screws that secure it to the MU100.
MU100
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