Applicable Scope And Precautions; Applicable Scope; Precautions; How To Obtain Product And Repair Information - Huawei U8950 Maintenance Manual

U8950 Maintenance Guide V1.0
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2.1 Applicable Scope

This document provides repair instructions for technicians at service centers authorized by
Huawei. Being Huawei proprietary, this document is accessible only for authorized service
centers and companies. Although every effort was made to ensure the accuracy of this
document, errors may still exist. If you find any errors or have any suggestions, contact
Huawei's customer service.

2.2 Precautions

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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.

2.3 How to Obtain Product and Repair Information

To obtain product and maintenance information, visit Huawei website at:
http://www.huaweidevice.com/cn/technicaIndex.do
2012-10-22

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 the components, screws, and insulators are properly installed after repair
and calibration and all cables and wires are installed and connected correctly.
Ensure that the soldering is lead-free and compliant with eco-friendly requirements.
Huawei Proprietary and Confidential
2 Applicable Scope and Precautions
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