NEC ND-71762(E) system manual CCH/CCT card is faulty. Paragraphs 3.3 or

MAINTENANCE PROCEDURE

(5)Diagnostic Work

START

Turn ON the MBR key on the CCH/CCT circuit card, and then set the MB key ON→OFF.

System Message 13-Kis￿ FAULT SUPERVISION displayed again

System Message 13-K is￿ FAULT not displayed

￿￿￿￿￿

END

:CCH/CCT card is faulty. Paragraphs 3.3 or 3.4

ND-71762 (E)CHAPTER 8

Page 111

Issue 2