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1-5. How to Use Extension Board
1-5. How to Use Extension Board
1-5-1. Use of Extension Board EX-621
The extension board EX-621 is used when checking and
adjusting the plug-in boards below.
Prepare an optional board because the extension board is
provided as a tool.
Extension board EX-621
Parts No.:
A-8318-782-A
Connectable plug-in boards:
DPR-139, EN-139 and IF-752 boards
n
Be sure to turn off the power switch before installing or
removing the board.
Procedure
(1) Remove the front panel. (Refer to section 1-3-1.)
(2) Remove the board retainers. (Refer to section 1-4-3.)
(3) Remove the plug-in board to be extended and insert
the extension board EX-621 into the slots of the
removed board.
(4) Insert the plug-in board to be extended into the
extension board EX-621.
1-22
Extention board EX-621
Plug-in board
DFR-E3000
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