自制按键式多功能测试仪 主板图

测试仪主板线路图  有时间自己也可以做一块 临时测试用 ，本来设计用三极管或者可控硅控制，但是这些半导体元件多多少少有内阻，且影响电流的精确度，所以使用继电器内阻小，对电流精度影响甚微，这个测试仪除了按钮和电流表是买来的，其他配件都是废旧利用，，继电器是从旧的空调电脑板上拆地，，对于家电维修的人来说不难找，4017价格2.5元 uln2003空调电脑板上也有，反正总成本40元左右！！！！顶到50楼就免费发触发电路图！！！！

楼下说付费看不到图片！！！！！现在开放图片！！！

哎啥东西都需要钱
可惜我没钱

我也没钱..............................

哎！！！！技术贴啊！！既然兄弟们这么说！！！那就10块销售！！！呵呵！！顶到50楼就免费开放

好东西，值得学习啊
我顶顶

20路可编程控制器上市了！！最新双色灯 红蓝紫双色 红绿黄双色 全面上市 20路控制器全面上市——本文来自〖www.521LED.com〗原帖地址：http://www.521led.com/viewthread.php?tid=3130&fromuid=3390
付了钱没看到资料

看看学习了！
钻研最新技术！
{:1_118:} {:1_118:}

附件: 您所在的用户组无法下载或查看附件——本文来自〖www.521LED.com〗原帖地址：http://www.521led.com/viewthread.php?tid=3130&fromuid=4251
怎么看不到啊？没有图片害我；浪费钱财！

怎么才第九楼啊还差41楼

哎！到现在还没有！
{:1_118:}

学习，，，，，，，，，，，，，，，，，，，

太强 大了  学习了 真是高手或

[whitepad]***400;200;400,200;;** m5,36 l7,34,8,34,10,32,12,31,13,30,15,30,16,29,19,28,20,27,22,26,22,25,23,25,25,23,25,22,26,21,27,21,27,16 e|********* m20,11 l20,14,22,16,23,19,24,21,24,24,25,26,26,29,27,31,27,50,26,50,26,51,25,51,23,53,22,53,22,60,19,60,19,59,18,58,17,58,16,57 e|********* m6,49 l9,46,11,46,14,44,22,40,23,39,25,38,28,35,30,34,31,33,31,32,33,31,34,29 e|********* m43,6 l43,10,42,10,42,11,40,13,39,13,38,14,38,15,37,15,36,16,36,17,59,17,59,21,58,22,58,23,57,25,56,25,55,27,55,28,53,30,53,31 51,31,50,32,50,33,49,33,48,34,48,35,47,36,45,36,45,37,42,37 e|********* m33,24 l33,23,38,23,41,22,43,22,44,21,49,21 e|********* m31,39 l55,39,55,37,54,37,54,35,53,34 e|********* m46,26 l46,56,47,58,47,65,48,67,48,72,47,72,46,71,45,71,45,70,44,68,42,67,38,63,35,61,32,58,28,56,24,53,19,50,15,46,12,45,8,41 e|********* m46,7 l55,7,54,8,52,8,52,9,51,10,50,10,50,12,49,13 e|********* m80,16 l81,16,81,23,80,23,80,25,78,26,76,28,76,29,74,31,72,32,70,34,68,35,66,35,66,36,64,37,61,37 e|********* m71,38 l71,51,70,51 e|********* m70,34 l86,34,86,35,87,35,87,56,86,57,86,59,85,60,84,60 e|********* m72,43 l80,43 e|********* m65,50 l79,50 e|********* m112,17 l112,18,111,18,108,21,108,23,107,23,106,25,106,26,104,26,103,28,102,29,102,30,101,30,100,31,100,32,99,32,99,33,123,33,123,46,122,48,122,50 121,52,121,54,119,57,118,58,116,62,115,63,115,65,113,66,113,67,110,67,110,66,107,66,106,64,103,61,102,59,101,58,100,56 e|********* m105,41 l106,41,106,42,107,43,107,44,108,45 e|********* m147,16 l147,21,146,22,145,24,145,26,141,28,141,29,139,31,138,31,137,32 e|********* m155,31 l159,31 e|********* m143,37 l143,38,147,38,151,39,161,39,161,41,160,41 e|********* m149,42 l155,42 e|********* m152,40 l151,40,150,41,150,45,149,46,149,57,150,57,151,56,151,50 e|********* m164,25 l168,25,171,26,200,26,213,29,221,29,221,30,218,30 e|********* m167,40 l188,40,188,37 e|********* m177,16 l177,43,178,47,179,49,180,52,182,55,184,59,185,62,188,68,189,71,191,73,192,75,194,77,195,77,195,75,194,75,194,74,193,72 e|********* m180,45 l180,52,179,53,179,55,171,55,170,54 e|********* m198,13 l198,14,199,14 e|********* m217,38 l285,38,285,37,284,37 e|********* m266,31 l265,31,263,32,262,34,261,35,260,37,259,38,258,40,256,43,254,45,252,49,249,51,245,54,242,56,240,57,239,58,237,59,236,60,234,60,233,59 e|********* m254,50 l255,52,256,52,258,55,261,57,263,59,264,61,265,61,265,62,266,63,266,65 e|********* m249,63 l250,63,250,61 e|********* m317,21 l317,27,316,30,316,33,314,36,314,37,312,40,309,46,308,49,308,52,306,52 e|********* m296,37 l296,39,295,40,295,41,294,42,294,46 e|********* m316,44 l317,44,319,45,319,46,321,47,323,47,323,48,325,50,327,51,330,51 e|********* m317,50 l315,51,314,52,314,53,312,54,311,55,311,56,309,58,307,58,305,60,304,62,303,63,300,64,297,67,295,68,295,69,291,71,291,72,288,72 e|********* m346,32 l363,32,365,33,365,34,367,35,367,38,364,41,362,41,361,43,358,44,356,46,352,47,350,48,344,50,342,50,340,51,345,51,346,52,346,53,347,53,348,54 349,56,349,57,350,58,350,61,352,65,352,77,350,79,349,79,349,80,340,80,340,79,338,78,335,77,335,76,329,72,328,71,325,69 e[/whitepad]{:1_97:}

好帖,谢谢楼主,新人学习中

谢谢  不过不大懂这些东西,慢慢来吧