86
About Expansion Board
Expansion boards (optional) are cards that allow you to
upgrade the system and add new instruments and drum kits.
The bottom panel of the TD-20 has a slot that allows
expansion boards to be installed.
Install only the specified circuit board (SOUND & SYSTEM
EXPANSION BOARD for TD-20).
* Sound expansion boards for the Roland JV/XP/XV/Fantom
series cannot be used.
901
• To avoid the risk of damage to internal components that
can be caused by static electricity, please carefully observe
the following whenever you handle the board.
1
• Before you touch the board, always first grasp a metal
object (such as a water pipe), so you are sure that any
static electricity you might have been carrying has been
discharged.
2
• When handling the board, grasp it only by its edges.
Avoid touching any of the electronic components or
connectors.
5
• Save the bag in which the board was originally
shipped, and put the board back into it whenever you
need to store or transport it.
911
• Do not touch any of the printed circuit pathways or
connection terminals.
912
• Never use excessive force when installing a circuit board. If
it doesn’t fit properly on the first attempt, remove the
board and try again.
913
• When circuit board installation is complete, double-check
your work.
914
• Always turn the unit off and unplug the power cord before
attempting installation of the circuit board (SOUND &
SYSTEM EXPANSION BOARD for TD-20).
915
• Install only the specified circuit board (SOUND & SYSTEM
EXPANSION BOARD for TD-20). Remove only the
specified screws.
1.
Always turn the TD-20 off and unplug the power
cord before attempting installation of the circuit
board (SOUND & SYSTEM EXPANSION BOARD
for TD-20).
2.
Remove only the eight screws as indicated
below, and open the cover located on the
bottom of the TD-20.
fig.00-049ae
3.
Check that the plastic board holders are
positioned as shown figure. Rotate them if
necessary.
fig.00-049be
Cautions When Installing a
Expansion Board
How to Install a Expansion
Board
Removal screws
Board holder
Connector
Expansion board
TD-20_Ref_e.book 86 ページ 2005年5月25日 水曜日 午前9時49分