NEC NEAX 2000 IVS2 Maintenance Manual page 144

CHAPTER 2 TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
A
LCD does not display any
information
No Tone Ringer
END
Page 136
(1) Adjust Display contrast.
CHECK
term
(1) D
REPLACE
(2) DLC card
(1) System Data Programming for D
CHECK
Tone Ringer: CM90 YY=01
(2) Adjust Ringer Volume on D
term
(1) D
REPLACE
term
.
2
NEAX2000 IVS Maintenance Manual
ND-70926 (E), Issue 3.0
term