A

Check the faulty line on the MDF.

When no speech can be made.

When speech can be made.

END

FAULT REPAIR PROCEDURES

ATTENTION

Contents

Static Sensitive

Handling

Precautions Required

Isolate the faulty line to the in-house wiring side and to the system side.

Connect the test Dterm to the system side.

Confirm speech by Station-to-Station calling.

Check LT cables.

Replace ELC circuit card with a spare.

Check to see if the modular plug is firmly connected with the Dterm.

Check the wiring inside the rosette.

Check the in-house wiring for any abnormality.

Replace the Dterm with a spare.

NDA-24300CHAPTER 5

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Issue 1

Page 346
Image 346
NEC NDA-24300 manual End