📄 南方维修网-技术论坛-数字万用表“二极管”档的使用.htm
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<TD vAlign=center
align=top><B>以文本方式查看主题</B><BR><BR>- <B>南方维修网-技术论坛</B> (http://www.gzfix.com/bbs/index.asp)<BR>-- <B>维修初级班</B> (http://www.gzfix.com/bbs/list.asp?boardid=17)<BR>---- <B>数字万用表“二极管”档的使用</B> (http://www.gzfix.com/bbs/dispbbs.asp?boardid=17&id=66)<BR>
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<TD vAlign=center
align=top>-- 作者：罗旭<BR>-- 发布时间：2004-9-21
16:58:44<BR><BR>-- 数字万用表“二极管”档的使用<BR>将万用表的红表笔接二极管的一极，黑(COM)表笔接另一极。
<BR> 在测得正向压降值小的情况下，红表笔(表内电池的正极)所接的是正极，黑表笔所接是负极。
<BR> 一般，所显示的二极管正向压降：硅二极管为0.55—0.700V，锗二极管为0.150--0.300V。若显示
“0000”，说明管子已短路；
<BR> 若显示“过载”，说明二极管内部开路或处于反向状态(可对调表笔再测)
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<TD vAlign=center
align=top>-- 作者：方南<BR>-- 发布时间：2004-9-23
14:22:47<BR><BR>-- <BR>非常的基础呀,不错呢!
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<TD vAlign=center
align=top>-- 作者：黄锦兵<BR>-- 发布时间：2004-9-23
22:04:20<BR><BR>-- <BR>我正想学一下
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<TD vAlign=center
align=top>-- 作者：720114ycl<BR>-- 发布时间：2004-11-8
12:19:09<BR><BR>-- <BR>
<P>非常有用</P><IMG onmousewheel="return bbimg(this)"
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<TD vAlign=center
align=top>-- 作者：yezxu<BR>-- 发布时间：2004-11-9
13:51:45<BR><BR>-- <BR>这下明白了
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<TD vAlign=center
align=top>-- 作者：wzj8080<BR>-- 发布时间：2005-1-16
5:31:36<BR><BR>-- <BR>谢谢
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align=top>-- 作者：hyson2005<BR>-- 发布时间：2005-3-10
19:56:07<BR><BR>-- <BR>ming bai<IMG
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