NEC NEAX 2000 IVS2 Maintenance Manual page 146

CHAPTER 2 TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
A
LCD does not display any
information.
No Tone Ringer
END
Page 138
(1) Adjust Display Contrast.
CHECK
(2) To test the LCD, perform the
ATTCON Self-Test. See "ATTCON
Self Test Procedure" on
(1) ATTCON
REPLACE
(2) DLC card
(1) System Data Programming for the
CHECK
console tone ringer: CM60 YY=16,
27
(2) Adjust Ringer Volume on the
console.
(3) To test tone ringer, perform the
ATTCON Self-Test. See "ATTCON
Self Test Procedure" on
(1) ATTCON
REPLACE
Page 140.
Page 140.
2
NEAX2000 IVS Maintenance Manual
ND-70926 (E), Issue 3.0