请教这几个器件的作用及走线

flexfit

请帮忙看看，谢谢！


E6601和E6602
<img src="attachments/dvbbs/2011-2/201121412593414078.jpg" border="0" onclick="zoom(this)" onload="if(this.width>document.body.clientWidth*0.5) {this.resized=true;this.width=document.body.clientWidth*0.5;this.style.cursor='pointer';} else {this.onclick=null}" alt="" />



E6603
<img src="attachments/dvbbs/2011-2/201121412594520368.jpg" border="0" onclick="zoom(this)" onload="if(this.width>document.body.clientWidth*0.5) {this.resized=true;this.width=document.body.clientWidth*0.5;this.style.cursor='pointer';} else {this.onclick=null}" alt="" />