2 Maintenance Instructions
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2 Maintenance Instructions
2.1 Applicable Scope
This document provides maintenance instructions for the technicians at service sites
authorized by Huawei. This document is Huawei proprietary and is accessible only for
authorized service centers and companies. Although every effort was made to ensure the
accuracy of the document, errors may still exist. If you find any mistake or have any
suggestion, contact Huawei's customer service.
2.2 Precautions
Maintenance and calibration operations are performed only by qualified technicians.
All repair and maintenance operations are performed in antistatic rooms with ESD wrist
straps correctly worn.
Ensure that all components, nuts, and insulators are installed after maintenance or
calibration. In addition, ensure that all cables and wires are properly installed.
Soldering is lead-free and compliant with environmental protection requirements.
2.3 Obtaining Product and Maintenance Information
For relevant product and repair information, please refer to the Huawei website.
Website: http://www.huaweidevice.com/cn/technicaIndex.do
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