NEC NEAX 2000 IPS Maintenance Manual page 231

B
Transmission quality is not
acceptable.
Noise/Distortion
Low Voice Level
Cross Talk
END
CHAPTER 2 TROUBLESHOOTING
FAULT DIAGNOSIS AND TROUBLESHOOTING
(1) Cabling between the PBX and the
CHECK
MDF or between the MDF and the
lines is properly run to avoid induc-
tion from an AC Power Cable, motor
or power supply equipment.
(1) Trunk card
REPLACE
(2) FP card
(3) MP card
(4) PWR card
CHECK (1) Loose connection of cables on the
MDF.
(1) Trunk card
REPLACE
(2) FP card
(3) MP card
(1) Wiring on the MDF is properly.
CHECK
REPLACE
(1) Trunk card
(2) FP card
(3) MP card
(4) PWR card
– 221 –
NWA-008847-001 Rev.3.0
a6ch2001.fm