NEC NDA-24300 manual For Single Configuration

FAULT REPAIR PROCEDURES

(2) For Single Configuration

START

Check by replacing the MUX (PH-PC36) circuit card.

After replacement of the MUX circuit card, make a station-to- station call in the faulty unit and see if speech is normal.

Check by replacing the TSW circuit card.

After replacement of the TSW circuit card, make a station-to- station call in the faulty unit and

see if speech is normal.

A

ATTENTION

Contents

Static Sensitive

Handling

Precautions Required

Replace the MUX circuit card by referring to Section 3.3.2, MUX Card Replacement Procedure, in Chapter 4.

Press the RESET button on the EMA card (*D).

Replace the TSW circuit card referring to Section 2.3.2, TSW Card Replacement Procedure, in Chapter 4.

Press the RESET button on the EMA card (*D).

CHAPTER 5 NDA-24300

Page 338

Issue 1