Handling Faulty Equipment: Maintenance Instructions [PDF]

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Handling Faulty Equipment Maintenance Instructions

2/1541-LZA 701 6001/1 Uen H

Copyright

© Ericsson AB 2016, 2017. All rights reserved. No part of this document may be reproduced in any form without the written permission of the copyright owner. Disclaimer The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document. Trademark List All trademarks mentioned herein are the property of their respective owners. These are shown in the document Trademark Information.

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Contents

Contents 1

Introduction

1

1.1

Target Group

1

1.2

Prerequisites

2

2

Handling Replacement Parts

3

3

Completing the Site Failure Note

5

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Handling Faulty Equipment

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Introduction

1

Introduction This document describes the procedure for handling faulty equipment and replacement parts. The Site Failure Note (SFN) described in this document replaces the previously used Repair Delivery Note (RDN Blue Tag). The RDN can still be used in a transition period. The procedures in this document only refer to the SFN, but can also be applied to the RDN in general terms. When returning a faulty unit, it is mandatory to attach a filled out SFN. Figure 1 shows the SFN.

Date Replaced at Site (YYYY-MM-DD)

Product Number

R-State

Prepared (Field Service Technician)

Service Provider

Country

Fault Situation (tick one of below boxes)

Fault Category (tick one of below boxes) 1. Functional failure

1. In operation (temp = 0-35°C)

Serial Number Customer/Operator Name

Unit Failure (tick one of below boxes)

Type of Node/System RMA Reference (if known)

LED Status (tick one of below boxes)

1. Stable failure

1. Red LED lit

2. In operation (temp > 35°C)

2. Mechanical damage, cannot be installed

2. Intermittent failure

2. Red LED flashing

3. In operation (temp < 0°C)

3. Installation damage

3. Cyclic failure (repeated after time)

3. Yellow LED lit

4. Installation in normal rollout

4. Transport, packing material damaged

4. Statistical/KPI failure

4. Yellow LED flashing

5. Installation in upgrade/extension

5. Wrong quantity

5. Failure remains after hard reset

5. Green LED lit

6. Software upgrade of node/product

6. Wrong product

6. Fault remains after power Off/On

6. No LED lit

7. Redeployment of used equipment

7. Unit returned unused

7. Suspected/Pro-active replacement

0. Other, describe below

0. Other, describe below

NOC Work Order Reference

Fault Code/Alarm ID/Slogan (from NOC)

0. Other, describe below

0. Other, describe below

CSR Reference (if applicable)

Failure Verified No

Yes

Only Replacement No

Yes

Pre-defined Fault Descriptions, Tick only ONE Fault Description and/or Free Text field Dead On Arrival (DOA) Fault Descriptions

MINILINK Fault Descriptions

Radio (GSM) Fault Descriptions

Generic Products Fault Descriptions

1. DOA, wrong product

1. BER

1. RF loop test fault

1. Software cannot be loaded

2. DOA, water damage

2. Hardware error

2. PA saturation

2. Power problem

3. DOA, mechanical damage

3. HCC

3. Synchronization/link failure

4. LOS (Loss of Signal)

4. TX failure

4. DOA, connectors damage 5. DOA, cosmetic/appearance

5. RCC

6. DOA, no power/do not power up

6. RX frequency

6. TX/RX Communication Fault

7. DOA, software cannot be loaded

7. TX frequency

7. Software cannot be loaded

5. RX path imbalance/VSWR

8. DOA, unit fails installation diagnostic

8. RF input level

8. Power supply problem

9. DOA, node/system fails diagnostic

9. RF output level

9. High temperature

0. DOA, generate alarm

0. RX AFC

9. Unit returned in unknown status 0. Unit returned as confirmed OK

No Pre-Defined Fault Description applicable, Field Service Technician to describe below with free text using capital letters in English:

LZF 084 84/1 R3B

SFN ID (when registered):

Figure 1

SFN Note:

1.1

Ge0174b

This document does not describe how to replace hardware units; it describes only how to handle the units before and after the replacement procedure. The replacement procedure is described in the hardware replacement document for the suspected faulty unit.

Target Group The target groups for this document are the following: •

Field technicians

•

Service personnel responsible for handling spare parts

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1

Handling Faulty Equipment

1.2

Prerequisites Before proceeding with the instructions in this document, make sure of the following: •

An SFN is available.

•

All data required for the SFN has been collected. See Table 1 for data required.

•

An Electrostatic Discharge (ESD) bag and packing material for returning units are available. Note:

2

The packing material from the replacement unit can be used to pack the replaced unit.

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Handling Replacement Parts

2

Handling Replacement Parts This section describes the procedure for handling and packing, or unpacking a unit. Do not expose units to extreme temperature variations caused by, for example, direct sunlight, or to high levels of humidity. Condensation and extreme heat can damage hardware or lead to hardware failure. Unpack the replacement unit in the intended operating environment. Note:

Replacement units must be kept in their ESD protective bag and original cardboard box until they are ready to be installed at site. Exercise care when handling units. Avoid touching components on printed circuits or connector pins. Damage to components or connector pins can lead to hardware failure.

Do the following: Steps 1. Check the packing material of the replacement unit. If the packing is damaged, check the unit. If the unit appears damaged, return it to the service center for repair or replacement. 2. Complete the SFN, giving all the information about the suspected fault.For a detailed description of how to fill out the SFN, see Completing the Site Failure Note on page 5. 3. Put the filled out SFN with the hardware unit being returned to the repair center. 4. Pack the unit suspected to be faulty in the packing material from the replacement part in the following order:

4 te te o o N N ry re ve ilu eli Fa D t e ir Si pa e R

3 2 1

B 00 01370

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3

Handling Faulty Equipment

a. ESD Bag b. SFN c. Shock-absorbent padding d. Box Note:

If the unit is ESD sensitive (as are all printed board assemblies), the bag must be ESD protective.

5. Make sure that the outside of the box is marked “FAULTY UNIT”, and has a list of the contents. 6. Return the packaged unit to the local Ericsson repair center, making sure that the handling and delivery method complies with any local procedures additional to this document.

4

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Completing the Site Failure Note

3

Completing the Site Failure Note This section describes how to fill out the SFN. Note:

The SFN is an important message to the repair center to assist in localizing the exact cause of the suspected failure and, therefore, the information requested should be completed as far as possible. This enables Ericsson to respond as quickly as possible.

Figure 1 shows the SFN. Table 1 provides a guide to the information to be collected for each required field. It is important to provide as much information as possible to assist with localizing faults and to ensure that the source can be identified and removed. It is recommended to fill out the SFN on a computer and then print it out, but it can also be printed out blank to be filled out by hand. For a PDF version of the SFN, refer to Site Failure Note. Note:

Fill out all free text options with capital letters in English.

Table 1

Guide for Filling out SFN

Field Name

Comments

Date Replaced at Site

Date when fault was handled by service technician and the unit was replaced. Required date format is: yyyy-mm-dd.

Product Number Product number found on the Ericsson label of the faulty unit (for example KRC 131 1002/2). R-state

Revision State found on the Ericsson label of the faulty unit (for example R5B).

Serial Number

Serial number found on the Ericsson label of the faulty unit (for example TU8BL63611).

Type of Node/ System

What type of node or cabinet the faulty unit was mounted/installed in (for example RBS 6102).

Prepared

Name of Field Technician replacing the board.

(Field Service Technician) Service Provider Name of the company the Field Technician is employed by (for example ERICSSON, Ericsson ASP, customer or other company hired by customer).

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5

Handling Faulty Equipment

Field Name

Comments

Country

Name of Country. Country Code can be given if known (for example INDONESIA or ID).

Customer/ Operator Name

The name of the actual customer/operator (for example TELECOM LTD).

RMA Reference (if known)

The RMA (Return Material Authorization) reference, if it is known at this point.

Fault Situation

1. In operation (temp = 0–35°C); system was working in normal environment when the fault occurred.

Mark the alternative that best describes the situation when the fault was detected.

2. In operation (temp>35°C); system was working in hot environment when the fault occurred. 3. In operation (temp