INTRODUCTION
I-E96-407A
4 - 1
SECTION 4 - REPAIR/REPLACEMENT PROCEDURES
INTRODUCTION
This section explains the replacement procedures for the ana-
log output termination unit (TAO). Repair procedures are lim-
ited to fuse and termination unit replacement. If the
termination unit fails, remove and replace it with a known good
unit.
FUSE REPLACEMENT
If a fuse (F1 or F2) opens, replace it with a fuse having an
equivalent rating. Table
describes the fuses and lists the
Bailey part numbers. To replace a fuse:
1. Turn off power to the cabinet.
2. Remove the blown fuse from its holder.
3. Replace the blown fuse.
4. Turn on power to the cabinet.
TERMINATION UNIT REPLACEMENT PROCEDURES
If a TAO termination unit is faulty, replace it with a new one.
Do not
try to repair the unit; replacing components may affect
the performance and certification of the unit.
Table 4-1. Recommended Spare Parts List
Description
Part Number
Fuse (F1) 0.5A/250V
194776A15000
Fuse (F2) 3.0A/250V
194776A13001
CAUTION
It is strongly recommended that all power (cabinet, I/O, etc.) be
turned off before doing any termination unit wiring. Failure to
do so could result in equipment damage. Do not apply power
until all connections are verified.
ATTENTION
II est fortement recommand, que toutes les alimentations (arm-
oire, E/S, etc.) soient coupées avant d'effectuer quelque rac-
cord que ce soit sur un carte de raccordement. Un
manquement à ces instructions pourrait causer des dommage
à l'équipement. Ne pas rebrancher les alimentations avant
d'avoir vérifié tous les raccordements.
