NEC NEAX 2000 IVS2 Maintenance Manual page 100

CHAPTER 2 TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
Table 2-6 Remedial Action on Each Lamp Status (Continued)
CARD NAME
PZ-PW126 MJ lamp is on
(AC/DC PWR)
MN lamp is on
ON lamp is not on
PZ-PW122 ON lamp is not on
(DC/DC PWR)
Page 92
LAMP STATUS
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
Operation power is
not being supplied
FAULT
CONTENT
See "FAULT DIAGNOSIS AND
TROUBLESHOOTING" on
See "FAULT DIAGNOSIS AND
TROUBLESHOOTING" on
1
Confirm the cable connection of
PZ-PW126.
2
Confirm the lamp indication of
PZ-PW126 all lamps.
3
If the PZ-PW126 lamp has abnormal
condition, replace the
PZ-PW126 card.
1
Confirm the cable connection of
PZ-PW121 and PZ-PW122.
2
Turn the PZ-PW122 SW switch on.
3
Confirm the lamp indication of
PZ-PW121 all lamps.
4
If the fault cannot be cleared, replace
the PZ-PW122 card.
REMEDIAL ACTION
Page 75.
Page 75.
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NEAX2000 IVS Maintenance Manual
ND-70926 (E), Issue 3.0