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8.6-3
Replacement
Main board
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CAUTION
z Main board TYPE II (SBY0164) needs to place ROM after Ver.3.00. This board does not work
properly if ROM before Ver.2.40 is placed.
z There are two types of main boards (SBY0164) for Type II. For details, refer to 8.13
Operation panel board, main board and sub-board .
(1) Turn on power SW of machine and record all set values.
(2) Turn off power SW of machine.
(3) Remove right cover from upper part of machine and right cover from DENSO box.
(4) Disconnect all connectors.
(5) Remove venous pressure sensor board; and arterial pressure sensor board as option, if
provided, as per the procedure specified in “8.7. Venous and arterial pressure sensor boards”.
(6) Remove main board under pressing spacer lock used to fix it.
(7) Prepare new main board. Main board is available TYPE I and TYPE II. Connect suitable board
after confirming machine type. Can be distinguish as following,
DIP DIP
TYPE I (SBY0156) TYPE II (SBY0164)
Fig. 8.6-2 The way of distinction board
(8) Attach the new board and check correct locking.
(9) Connect all the disconnected connectors.
(10) Turn on power SW of machine.
(11) Input all the set values recorded at step (1).
(12) Adjust concentration as per the procedure specified in “10.16. Adjustment of concentration”.
(13) Check that various analog sensor values indicated in LCD are correct.
(14) Check correct function of machine.
(15) Return the removed covers to the original positions.