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发表于 2006-8-18 10:58
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<p><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">经过一个月漫长的等待,终于在前几天收到电路板,这板子分成四个部分,</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial;">Quad707</span><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">功放,</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial;">LM3886</span><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">双声道标准电路功放,电子分频,和音箱保护电路,厂方一共做了十七块板子,收费换算成人民币是一千一百元。因为有些元件未齐所以先焊上手中有的元件。</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial;"><p></p></span></p><p></p><p></p><p><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial;">Quad707 </span><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">原机的电源结构不需用到音箱保护电路也很安全,但我把电源改为中心抽头后就必须用音箱保护电路否则当功放出毛病时音箱会不保,所以制作了一个四通道的保护电路用在二分频的系统上。</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial;"><p></p></span></p><p></p><p></p><p><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">这里先上几张图:</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial;"><p></p></span></p><p></p><p></p><p><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">四合一的电路板</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial;"><p></p></span></p><p></p><p></p><p><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial;"> <img src="attachments/dvbbs/2006-8/20068189474080582.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/2006-8/20068189474080582.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><p></p></span></p><p></p><p></p><p><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">改版的</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial;">Quad707</span><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">功放板</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial;"><p></p></span></p><p></p><p></p><p><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">电子分频板</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial;"><p></p></span></p><p></p><p></p><p><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">音箱保护电路板</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial;"><p></p></span></p><p></p><p></p><p><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">定制的两个</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">650VA </span><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">的</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: Arial; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"> EI </span><span lang="ZH-CN" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Ari |
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