....................................................................................................................................................................................................................................

Overview

Procedure

7 - 8

The procedure described below should be performed if some LEDs do

not light up during an LED test (see Chapter 6, section "LED Test"

(6-6)).

Follow the steps below in the case of an LED test failure:

............................................................................................................................................................

Check that the circuit packs are plugged in correctly and the power

supply is on.

IF ...

circuit pack LEDs do not

light up,

LEDs of the User Panel do

not light up,

all LEDs light up,

N D

O F

T E P S

............................................................................................................................................................

Circuit pack fuse

If the circuit pack fuse is defect the circuit pack has to be returned to

a manufacturing facility for repair.

Lucent Technologies

Installation Troubleshooting

THEN ...

replace the respective circuit packs.

replace the User Panel.

END OF STEPS

365-374-059

Issue a, January 2002

Table of Contents