2-18
DSR-300/P(E)/V1
2-11-4. DPR-99/99P and ES-21/21P Boards
1. Open the right panel. (Refer to section 2-2-2.)
2. Open the board lever of the DPR-99 and ES-21 boards
in the arrow direction, and pull out the DPR-99/99P
and ES-21/21P boards.
Point to notice when attaching the board:
Insert the board along the right and left sides of rails until
it securely comes in contact with the MB-753 board.
Note:
Be sure to perform menu’s “Page 24 Memory
Backup” after the DPR-99/99P and ES-21/21P
boards replacement. (Refer to section 2-26-3.)
2-11-5. DU-27 Board
1. Remove the DPR-99/99P and ES-21/21P boards.
(Refer to section 2-11-4.)
2. Remove the two screws (B2.6
x
4) and remove the
dust-proof sheet.
3. Disconnect the connector CN1 from the DU-27 board,
then remove the DU-27 board.
Point to notice when attaching the board:
Align the hole of the DU-27 board with a boss portion of
the frame assembly.
DPR-99 board
ES-21 board
MB-753 board
Boss
Hole
DU-27 board
Dust-proof sheet
CN1
Screws
B2.6
x
4
