Applicable Scope And Precautions; Applicable Scope; Precautions; How To Obtain Product And Repair Information - Huawei U9500 Maintenance Manual

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U9500 Maintenance Guide

This document provides repair instructions for technicians at service centers authorized by

Huawei. This maintenance manual is confidential and accessible to authorized service centers

(ASCs) and authorized service providers (ASPs) only. While every effort has been made to

ensure the accuracy of this document, errors may still exist. If you find any errors or have any

suggestions, please contact Huawei's customer service.

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To obtain product and maintenance information, visit Huawei website at:

http://www.huaweidevice.com/cn/technicaIndex.do.

Issue 1.2 (2012-6-30)

Applicable Scope and Precautions

Only qualified technicians are allowed to perform repair and calibration.

Perform all operations in electrostatic discharge (ESD) rooms and wear ESD wrist straps

throughout the operations.

Ensure that all components, screws, and insulators are properly installed after repair and

calibration, and that all cables and wires are installed and connected correctly.

Ensure that the soldering is lead-free and compliant with eco-friendly requirements.

ESD is the main cause of damage to electrostatic-sensitive components. Each

ASC must exercise caution to avoid ESD damage and comply with the ESD

protection requirements in this manual.

Huawei Proprietary and Confidential

2 Applicable Scope and Precautions

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