How To Install the TDW-20 Expansion Board
1. Power-off the TD-20, and unplug the power cord
from the AC outlet.
2. Turn the TD-20 over on its back.
* When turning the TD-20 on its back, take care not to damage
the buttons and knobs. To protect them, spread a cushion or
towel over your work surface.
3. Remove the eight screws (marked by arrows) on the
bottom panel. Take off the cover.
* Do not remove any screws other than those marked by ar-
rows.
4. Orient the circuit board holder as shown in the
illustration.
5. Insert the connector of the expansion board all the
way into the connector of the TD-20. Make sure that
the tip of each circuit board holder protrudes
through the holes in the TDW-20.
13