NEC NEAX 2000 IVS2 Maintenance Manual page 141

B
Transmission quality is not
acceptable.
Noise/Distortion
Low Voice Level
Cross Talk
END
2
NEAX2000 IVS Maintenance Manual
ND-70926 (E), Issue 3.0
CHAPTER 2 TROUBLESHOOTING
(1) Cabling between the PBX and the
CHECK
MDF or between the MDF and the
lines is properly run to avoid
induction from an AC Power Cable,
motor or power supply equipment.
(1) Trunk card
REPLACE
(2) FP card
(3) MP card
(4) PWR card
(1) Loose connection of cables on the
CHECK
MDF.
(1) Trunk card
REPLACE
(2) FP card
(3) MP card
(1) Wiring on the MDF is properly.
CHECK
(1) Trunk card
REPLACE
(2) FP card
(3) MP card
(4) PWR card
Fault Diagnosis and Troubleshooting
Page 133