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ND-71762 (E) CHAPTER 8
Page 111
Issue 2
MAINTENANCE PROCEDURE
(5) Diagnostic Work
START
END
Turn ON the MBR key on the CCH/CCT circuit card, and then set the MB key ON→OFF.
System Message 13-K is FAULT SUPERVISION
displayed again
System Message 13-K is FAULT : CCH/CCT card is faulty.
not displayed
Paragraphs 3.3 or 3.4