NEC NEAX 2000 IVS2 Maintenance Manual page 99

Table 2-6 Remedial Action on Each Lamp Status (Continued)
CARD NAME
PN-PW00 RUN lamp is not on
(EXTPWR)
PZ-PW121 MJ lamp is on
(AC/DC PWR)
MN lamp is on
ON lamp is not on
2
NEAX2000 IVS Maintenance Manual
ND-70926 (E), Issue 3.0
LAMP STATUS
–48V power is not
being supplied
Major trouble occurs
or resident system
program is not
properly loaded
Minor trouble occurs
or resident system
program is
successfully loaded,
or a station line is
locked out
Operation power is
not being supplied
CHAPTER 2 TROUBLESHOOTING
FAULT
CONTENT
1
Confirm the lamp indication of
PZ-PW121/PZ-PW126 all lamps.
2
If the fault cannot be cleared, replace
the PN-PW00 card.
3
If the PZ-PW121/PZ-PW126 lamp has
abnormal condition, replace the PZ-
PW121/PZ-PW126 card.
See "FAULT DIAGNOSIS AND
TROUBLESHOOTING" on
See "FAULT DIAGNOSIS AND
TROUBLESHOOTING" on
1
Confirm the cable connection of
PZ-PW121.
2
Confirm the lamp indication of
PZ-PW121 all lamps.
3
If the PZ-PW121 lamp has abnormal
condition, replace the
PZ-PW121 card.
Fault Diagnosis and Troubleshooting
REMEDIAL ACTION
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