发 帖  
原厂入驻New
[问答]

HP3070中的数字电路内故障该怎么解决?

515 ICT 节点
分享
嗨,最近我在测试板时遇到了HP3070的问题。
在ICT测试期间请参考数字/ u27故障的附件。
在其他HP3070测试仪上测试时,该板能够通过。
诊断也显示在模块2和3中通过。采取的措施:由于故障指示BRRCC节点220125位于模块3插槽8处。因此,我在模块3插槽8中交换插针卡而其他插槽仍然无法通过。
因此,上述情况表明使用了在同一测试程序中使用其他HP3070测试仪通过的电路板,并且诊断结果显示模块2和模块3之间通过。请指教,我真的很感激。
谢谢,大卫林

以上来自于谷歌翻译


     以下为原文

  Hi,

Recently I have met a problem with HP3070 during board under test.  
Please  refer attached of digital/u27 failure during ICT test. The board able to PASS while testing at other HP3070 tester.  
Diagnostics also showed passed in module 2 and 3.  

Action taken:  
Since the failure indicates that BRRCC node 220125 where located at module 3 slot 8. Therefore, I swap pin card in module 3 slot 8 with other slot still unable to pass.
  
Thus, above case indicates that board able to PASS by using other HP3070 tester within same test program been used, and diagnostics result showed pass  
between module 2 and module 3.  
Please aDVIse and I really appreciate it.

Thanks
  
Regards,
David Lim   
附件

0
2019-7-15 07:44:01   评论 分享淘帖 邀请回答
1个回答
嗨大卫,这可能是一个边缘测试,传递一个系统而不是另一个系统,可能是由于时间问题,这个错误与电压存在有关 - 你应该检查原理图上列出的节点及其可能的固定节点或
有力量存在。
所以检查你是否没有开到有电压存在的节点这是数字子器官中的第一次测试吗?
可能是你需要将测试移到数字例程的中间或尝试缩短向量周期并在测试中接收每个100n的延迟(即如果向量周期为400n,则变为300n,如果接收延迟为300n,则更改
到200n)你无论如何都不能改变160n以下的矢量周期,谢谢,Jon

以上来自于谷歌翻译


     以下为原文

  Hi David,

this is probably a marginal test that passes on one system but not on another and could be due to timing, this error is related to voltage being present- you should check that node listed on the schematics and its probablky a fixed node or has power present.

so check that you are not driving onto a node that has voltage present

is this the first test in the digital suborutine ? could be that you need to move the test to middle of digital routine or try to shorten the vector cycle and receive delay inside the test by 100n each (i.e. if vector cycle is 400n, change to 300n, and if receive delay is 300n, change to 200n) you wont be able to change vector cycle below 160n anyway ,


thanks, Jon
2019-7-15 08:00:59 评论

举报

只有小组成员才能发言,加入小组>>

139个成员聚集在这个小组

加入小组

创建小组步骤

关闭

站长推荐 上一条 /7 下一条

快速回复 返回顶部 返回列表