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CHAPTER 8 ND-71762 (E)
Page 120
Issue 2
MAINTENANCE PROCEDURE
5.2 DTI Circuit Card
(1) Procedure for Extraction:
(2) Procedure for Insertion:
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Set the MBR switch (SW01-0, 1) UP on the CCH card connected via the front cable with the DTI card.
Set the MB switch UP on the CCH card.
The OPE lamp (green) goes out and N-OPE lamp (red) illuminates on the CCH card.
Set the MB switch UP on the DTI card.
The OPE lamp (green) goes out and the N-OPE lamp (red) illuminates on the DTI card.
Remove the front cable of the DTI card.
Extract the DTI card from its mounting slot.
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Set the MB switch of the DTI card UP .
Insert the DTI card into its mounting slot.
Connect the front cable between DTI and CCH card.
Set the MB switch of the DTI circuit card DOWN .
The OPE lamp of the DTI card illuminates.
Set the MB and MBR switch on the CCH card DOWN .
Confirm that the OPE lamp (green) illuminates on the CCH card connected with the DTI card via the
front cable.