seabreeze 发表于 2005-8-13 15:21

文招用的焊锡不好，熔点高，色泽暗

焊接双面板时，好的焊锡（低熔点）能溶入金属化过孔浸润背面的焊盘。而焊盘表面不会堆这么多锡


文招 发表于 2005-8-13 11:56

我就中意放上边

吹咩

HQ 发表于 2005-8-13 11:46

放肆!

以下是引用文招在2005-8-13 10:42:00的发言：
我的1543没装集成座，原来的电解太大了，会压到散热板，放不下。你的只是理论罢我试过再说



可以装底下

文招 发表于 2005-8-13 10:51

呵呵

CS8412 22脚模拟用电源实测4.95V,所以我在那个100R的电阻上并了一个6K8的电阻,这样电源就上到5.2V了。
<img src="attachments/dvbbs/2005-8/200581310500524.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/2005-8/200581310500524.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />




运放电源部分5K微调并不装上，把1K5改1K3，这时电压实测17.4V。正负偏差0.2V，在可接受范围内。原来的二个5K微调位置我装了二个0.1uF的电容作加强退耦用<img src="attachments/dvbbs/2005-8/2005813105116596.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/2005-8/2005813105116596.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

文招 发表于 2005-8-13 10:42

告鬼版

以下是引用小鬼头在2005-8-13 2:48:00的发言：
因为，高频电流的返回路径问题。。。。呵呵

http://www.hifidiy.net/UploadFile/2005-8/200581314921641.jpg

我的1543没装集成座，原来的电解太大了，会压到散热板，放不下。你的只是理论罢我试过再说

明9002 发表于 2005-8-13 09:27

文招胸的手艺果然高高的

深藏不露，一露就杀人啊~~~
NND。。。还P我说家里没好DD了。。。那些电容是啥？
NND。。。打。。。打。。。打。。。打劫！
严肃点。。。

andylei 发表于 2005-8-13 09:19

强

土八路 发表于 2005-8-13 08:28

靠！文召在闭门造车！口水呀！

赤兔 发表于 2005-8-13 07:57

哦。我也调过了。

退藕用bg的f16v，100u。
op是se5534，比627有味道点。
偶合用mmk，1u的。

lguofeng 发表于 2005-8-13 07:46

焊功高

cs8412焊的真漂亮

HQ 发表于 2005-8-13 07:09

焊功一流!

以下是引用文招在2005-8-13 1:45:00的发言：
焊好CS8412后，其余的就可全部装完了。
<img src="attachments/dvbbs/2005-8/200581314436302.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/2005-8/200581314436302.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />


      下次我的也发给你帮我焊      

HQ 发表于 2005-8-13 07:07

这些电容流口水

以下是引用文招在2005-8-13 1:47:00的发言：





<img src="attachments/dvbbs/2005-8/20058131522747.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/2005-8/20058131522747.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />




      

小鬼头 发表于 2005-8-13 02:48

建议你这里还是用回原来非轴向的电解

因为，高频电流的返回路径问题。。。。呵呵

http://www.hifidiy.net/UploadFile/2005-8/200581314921641.jpg

文招 发表于 2005-8-13 02:00

口水啊

我的EL84垃圾也在开声呢

Julien 发表于 2005-8-13 01:57

我在听胆后级套件样品呢，哈哈

EL84小妖精的魅力，听女声威力无穷啊



文招 发表于 2005-8-13 01:55

哈哈

JJ哥也是夜猫子

Julien 发表于 2005-8-13 01:53

打。。打，打劫。。。打。。。打。。。打劫啦

文招 发表于 2005-8-13 01:47

。







<img src="attachments/dvbbs/2005-8/20058131522747.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/2005-8/20058131522747.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

文招 发表于 2005-8-13 01:45

继续

输出电容用的是小日本机上拆下的ELNAfor audio 22uF/25VCE-BP电容。拿在手上就比国内售的重多了。引脚也特粗，要磨细点才能放进去。运放的退耦我用的是ELNA silmic 680uF/35V。CS8412数字退耦我OS 33uF/16V，CS8412模拟退耦我用ELNA cerafine 10uF/25V。TDA1543退耦我用菲利普轴向引脚，方便放在散热器下。运放暂时用菲NE5534试机，正常后用AD844和LT1028试下。<img src="attachments/dvbbs/2005-8/20058131452669.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/2005-8/20058131452669.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />







文招 发表于 2005-8-13 01:45

继续

焊好CS8412后，其余的就可全部装完了。
<img src="attachments/dvbbs/2005-8/200581314436302.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/2005-8/200581314436302.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
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