MAINTENANCE PROCEDURE

(5)Diagnostic Work

START

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

System Message

13-F

is￿

FAULT

: CCH/CCT circuit card is faulty.

displayed again.

 

 

 

 

 

 

 

 

 

 

 

 

Paragraphs 3.3 or 3.4

 

System Message

13-F

is￿

 

 

 

 

 

FAULT SUPERVISION

 

 

not displayed.

 

 

 

 

 

 

 

END

ND-71762 (E)CHAPTER 8

Page 101

Issue 2

Page 115
Image 115
NEC ND-71762(E) system manual Displayed again Paragraphs 3.3 or System Message 13-F