求教测量套件！！

ttf

首先检测电平，将开关置于下、上、中：
<img src="attachments/dvbbs/2005-11/2005111917718194.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-11/2005111917718194.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
调到如图所示电平后，效正声卡：
<img src="attachments/dvbbs/2005-11/2005111917825466.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-11/2005111917825466.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
随后切换到测量栏目，将开关置于上、上、下，测量Z：
<img src="attachments/dvbbs/2005-11/20051119171041250.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-11/20051119171041250.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
就得到上述结果，考虑什么问题呢。这时候连接计算机只有两根线，一根是和声卡输出向连，是单声道的；一根和线路输入相连，结测量板SW和JUSTMLS；话筒输入和Probe没有接（接上也一样）。接线有问题吗？

ttf

效正的全图？没懂。
感觉和电平关系不大，我这个电平比较低，但是高的我也试过，还有我没有搞懂功放信号输入的电位器有什么用（就是那个W，我用的50K），说明里面叫开到最小，那么什么时候开大呢？

维卡亚

或者联线有问题.也或者是你的声卡电平调整有问题.或者声卡有设置好.也可能你的测试套件内部焊接出问题.不好判断呀.把你的较正发一个全图上来看看.目前看你测的阻抗这一项.电平太低了.