C5735 基础版维修手册
V1.0
拟制： Prepared by 审核： Reviewed by 批准： Approved by
产品部资料组 日期： Date 日期： Date 日期： Date 2010-5-20
华为技术有限公司
Huawei Technologies Co.，Ltd.
版权所有 侵权必究 All rights reserved
C5735 基础版维修手册V1.0 内部公开
Revision record 修订记录
Date 日期 Revision Version 修订版本 Revision Cause Section Number 修订原因 修改章节 Change Description 修改描述 Author 作者 2011-5-20 V1.0 产品部资料组 2019-07-12
华为机密，未经许可不得扩散 第2页，共58页
C5735 基础版维修手册V1.0 内部公开
目录
第1章 产品简介 ....................................................................................................................................................................... 5 1.1 产品外观图 ..................................................................................................................................................................... 5 1.2 产品特性简介 ................................................................................................................................................................. 5 第2章 维修信息说明指引 ..................................................................................................................................................... 7 2.1 文档使用说明 ................................................................................................................................................................. 7 2.2 维修注意事项 ................................................................................................................................................................. 7 2.3 维修信息获取指引 ........................................................................................................................................................ 7 第3章 主机爆炸图 .................................................................................................................................................................. 8 第4章 主板元器件位置图 ................................................................................................................................................... 10 第5章 软件升级 ..................................................................................................................................................................... 13 5.1 升级前准备 ................................................................................................................................................................... 13 5.2 升级硬件连接 ............................................................................................................................................................... 13 5.3 数据线升级 ................................................................................................................................................................... 14 5.3.1 驱动安装 ................................................................................................................................................................................ 14 5.3.2 安装升级工具 ...................................................................................................................................................................... 15 5.3.3 升级过程 ................................................................................................................................................................................ 17 5.3.4 强制升级 ................................................................................................................................................................................ 21 5.4 SD卡升级....................................................................................................................................................................... 21 5.4.1 正常升级 ................................................................................................................................................................................ 21 5.4.2 强制升级 ................................................................................................................................................................................ 22 5.5 异常处理 ........................................................................................................................................................................ 22 第6章 维修工具 ..................................................................................................................................................................... 23 第7章 拆机步骤图 ................................................................................................................................................................ 25 第8章 装机步骤图 ................................................................................................................................................................ 29 第9章 常见故障简易排除指导 .......................................................................................................................................... 33 9.1 原理简介 ........................................................................................................................................................................ 33 9.2 不开机 ............................................................................................................................................................................ 34 9.2.1 大电流 ..................................................................................................................................................................................... 34 9.2.2 小电流 ..................................................................................................................................................................................... 36 9.3 充电故障 ........................................................................................................................................................................ 39 9.4 键盘故障 ........................................................................................................................................................................ 40 9.5 不识卡 ............................................................................................................................................................................ 41 9.5.1 不识UIM卡 ........................................................................................................................................................................... 41 9.5.2 不识SD卡 ............................................................................................................................................................................. 42 9.6 显示故障 ........................................................................................................................................................................ 43 9.7 音频故障 ........................................................................................................................................................................ 44 9.7.1 无铃声 ..................................................................................................................................................................................... 44 9.7.2 无送话 ..................................................................................................................................................................................... 45 9.7.3 无受话 ..................................................................................................................................................................................... 46 9.8 耳机故障 ........................................................................................................................................................................ 47
2019-07-12
华为机密，未经许可不得扩散
第3页，共58页
C5735 基础版维修手册V1.0 内部公开
9.8.1 耳机无声 ................................................................................................................................................................................ 47 9.8.2 耳机无送话 ........................................................................................................................................................................... 48 9.9 照相机故障 ................................................................................................................................................................... 49 9.10 振动故障 ..................................................................................................................................................................... 49 9.11 射频故障 ..................................................................................................................................................................... 51 9.11.1 接收故障 ............................................................................................................................................................................. 51 9.11.2 发射故障 ............................................................................................................................................................................. 53 第10章 PCB板焊点图 ........................................................................................................................................................... 54 10.1 PCB正面焊点图 ......................................................................................................................................................... 54 10.2 PCB反面焊点图 ......................................................................................................................................................... 55 第11章 功能测试 ................................................................................................................................................................... 56 11.1 键盘介绍 ..................................................................................................................................................................... 56 11.2 MMI测试....................................................................................................................................................................... 56 11.3 语音测试 ..................................................................................................................................................................... 58
2019-07-12
华为机密，未经许可不得扩散 第4页，共58页