康 佳M930移 动 电 话维 修 手 册

gower_dcg

目 录
第一章 一般性描述...............................................................................................................4
1.1 产品概述.....................................................................................................................................4
1.2 技术指标.....................................................................................................................................4
1.3 外形图.........................................................................................................................................5
1.4 手机装配.....................................................................................................................................6
1.5手机结构件名称表.......................................................................................................................7
1.6 装配步骤.....................................................................................................................................8
第二章 手机维修及检测工具的使用...................................................................................8
2.1、维修注意事项............................................................................................................................8
2.1.1 维修要点..............................................................................................................................................8
2.1.2 仪器使用注意事项...............................................................................................................................8
2.1.3 软件下载注意事项...............................................................................................................................9
2.2、测试仪器仪表及维修工具的选择............................................................................................9
2.3、电源设置...................................................................................................................................9
2.4、硬件连接...................................................................................................................................9
2.5 用多串口下载工具下载软件时三种模式的区别....................................................................10
2.5.1 Download ROM..................................................................................................................................10
2.5.2 Download ROM and FAT.....................................................................................................................10
2.5.3 Download ROM and FORMAT...........................................................................................................10
第三章 电路原理与故障分析................................................................................................11
3.1、射频电路原理与故障分析......................................................................................................12
3.1.1接收电路原理与故障分析..................................................................................................................12
3.1.2 发射电路原理与故障分析.................................................................................................................14
3.2 电源电路和充放电电路............................................................................................................14
3.2.3 SIM卡接口电路................................................................................................................................17
3.2.4．显示电路..........................................................................................................................................18
第四章 常见问题分析.......................................................................................................18
第五章 主要器件附录：.......................................................................................................21
5.1 CPU（MT6217）.......................................................................................................................21
5.2 电源管理芯片( MT6305BN).....................................................................................................22
5.3 Transceiver................................................................................................................................23
【文件名】:071018@52RD_康佳通信科技有限公司移动电话维修手册20069149512775044.pdf
【格　式】:pdf
【大　小】:633K
【简　介】:
【目　录】:

gower_dcg

这么好的东东,没见人下呢
'[em10]

gower_dcg

这么好的东东,没见人下呢???[em11]

zzzte

[em05]