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