CHAPTER 2 TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
NEAX2000 IVS
2
Maintenance Manual
ND-70926 (E), Issue 3.0
Page 91
PN-PW00
(EXTPWR)
RUN lamp is not on
–48V power is not
being supplied
Confirm the lamp indication of
PZ-PW121/PZ-PW126 all lamps.
If the fault cannot be cleared, replace
the PN-PW00 card.
If the PZ-PW121/PZ-PW126 lamp has
abnormal condition, replace the PZ-
PW121/PZ-PW126 card.
PZ-PW121
(AC/DC PWR)
MJ lamp is on
Major trouble occurs
or resident system
program is not
properly loaded
See “FAULT DIAGNOSIS AND
TROUBLESHOOTING” on
MN lamp is on
Minor trouble occurs
or resident system
program is
successfully loaded,
or a station line is
locked out
See “FAULT DIAGNOSIS AND
TROUBLESHOOTING” on
ON lamp is not on
Operation power is
not being supplied
Confirm the cable connection of
PZ-PW121.
Confirm the lamp indication of
PZ-PW121 all lamps.
If the PZ-PW121 lamp has abnormal
condition, replace the
PZ-PW121 card.
Table 2-6 Remedial Action on Each Lamp Status (Continued)
CARD NAME
LAMP STATUS
FAULT
CONTENT
REMEDIAL ACTION
1
2
3
1
2
3
Summary of Contents for NEAX 2000IVS2
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