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100-K05DJ400处理器
来自：厦门盈亦自动化科技有限公司
13人民币
发布时间：2022-11-1
关注次数：98
产品参数
商品详情
100-K05DJ400处理器
功能与参数测试
1.<测试仪>对器件的检测,仅能反应出截止区,放大区和饱和区.但不
能测出工作频率的高低和速度的快慢等具体数值等.
2.同理对TTL数字芯片而言,也只能知道有高低电平的输出变化.而无
法查出它的上升与下降沿的速度.
四.晶体振荡器
1.通常只能用示波器(晶振需加电)或频率计测试,万用表等无法测量,
否则只能采用代换法了.
2.晶振常见故障有:a.内部漏电,b.内部开路c.变质频偏d.外围相连电
容漏电.这里漏电现象,用<测试仪>的VI曲线应能测出.
3.整板测试时可采用两种判断方法:a.测试时晶振附近既周围的有关
芯片不通过.b.除晶振外没找到其它故障点.
4.晶振常见有2种:a.两脚.b.四脚,其中第2脚是加电源的,注意不可随
意短路.
五.故障现象的分布
1.电路板故障部位的不完全统计:1)芯片损坏30%, 2)分立元件损坏30%,
3)连线(PCB板敷铜线)断裂30%, 4)程序破坏或丢失10%(有上升趋势).
2.由上可知,当待修电路板出现联线和程序有问题时,又没有好板子,既
不熟悉它的连线,找不到原程序.此板修好的可能性就不大了.
100-K05DJ400处理器
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| R88A-CAGA010S |
| R88A-CAGA015B |
| R88A-CAGA015S |
| R88A-CAGA020B |
| R88A-CAGA020BR |
| R88A-CAGA020S |
| R88A-CAGA020SR |
| R88A-CAGA050S |
| R88A-CAGB003B |
| R88A-CAGB003BR |
| R88A-CAGB003S |
| R88A-CAGB003SR |
| R88A-CAGB005B |
| R88A-CAGB005BR |
| R88A-CAGB005S |
| R88A-CAGB005SR |
| R88A-CAGB010B |
| R88A-CAGB010BR |
| R88A-CAGB010S |
| R88A-CAGB010SR |
| R88A-CAGB015B |
| R88A-CAGB015BR |
| R88A-CAGB015S |
| R88A-CAGB015SR |
| R88A-CAGB020B |
| R88A-CAGB020BR |
| R88A-CAGB020S |
| R88A-CAGB020SR |
| R88A-CAGB030B |
| R88A-CAGB030BR |
| R88A-CAGB030S |
| R88A-CAGB030SR |
| R88A-CAGB040B |
| R88A-CAGB040BR |
| R88A-CAGB040S |
| R88A-CAGB040SR |
| R88A-CAGB050B |
| R88A-CAGB050BR |
| R88A-CAGB050S |
| R88A-CAGB050SR |
| R88A-CAGC003B |
| R88A-CAGC003S |
| R88A-CAGC020B |
| R88A-CAGD003B |
| R88A-CAGD003BR |
| R88A-CAGD003S |
| R88A-CAGD003SR |
| R88A-CAGD005B |
| R88A-CAGD005BR |
| R88A-CAGD005S |
| R88A-CAGD005SR |
| R88A-CAGD010B |
| R88A-CAGD010BR |
| R88A-CAGD010S |
| R88A-CAGD010SR |
| R88A-CAGD015B |
| R88A-CAGD015BR |
| R88A-CAGD015S |
| R88A-CAGD015SR |
| R88A-CAGD020B |
| R88A-CAGD020BR |
| R88A-CAGD020S |
| R88A-CAGD020SR |
| R88A-CAGD030B |
| R88A-CAGD030BR |
| R88A-CAGD030S |
| R88A-CAGD030SR |
| R88A-CAGD040B |
| R88A-CAGD040BR |
| R88A-CAGD040S |
| R88A-CAGD040SR |
| R88A-CAGD050B |
| R88A-CAGD050BR |
| R88A-CAGD050S |
| R88A-CAGD050SR |
| R88A-CAGE003B |
| R88A-CAGE003S |
| R88A-CAGE005B |
| R88A-CAGE005S |
| R88A-CAGE010B |
| R88A-CAGE010S |
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