走遍中,台,港,澳四地的-CDM12(澳门区)

yyym2

好象多了一条```[em03]

mousedog

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span class="postbody1"><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: Verdana; LETTER-SPACING: 0pt; mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"></span></span><span class="postbody1"><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: Verdana; LETTER-SPACING: 0pt;"><p>埋尾了,照明led改成长着绿灯.哈哈!烧友中流传绿笔,绿光,不知你信不信呢!</p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;">

走遍中,台,港,澳四地的-CDM12(澳门区)

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走遍中,台,港,澳四地的-CDM12(澳门区)

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走遍中,台,港,澳四地的-CDM12(澳门区)

</p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><br/></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span class="postbody1"><span lang="ZH-CN" style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; LETTER-SPACING: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">到了完成阶段</span></span><span class="postbody1"><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: Verdana; LETTER-SPACING: 0pt; mso-bidi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">,</span></span><span class="postbody1"><span lang="ZH-CN" style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; LETTER-SPACING: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">终于可以坐低饮杯茶</span></span><span class="postbody1"><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: Verdana; LETTER-SPACING: 0pt; mso-bidi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">,</span></span><span class="postbody1"><span lang="ZH-CN" style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; LETTER-SPACING: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">食个包</span></span><span class="postbody1"><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: Verdana; LETTER-SPACING: 0pt; mso-bidi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">!</span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;">

走遍中,台,港,澳四地的-CDM12(澳门区)

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loup7

請問如何令機內藍燈長期亮著?

解放牌卡车

[em01][em01][em01]

mousedog

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">这里近日最热应是</span><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"><font face="Times New Roman">12</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">转盘</span><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"><font face="Times New Roman">,</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">我也开始弄闲置了个多月的板板</span><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"><font face="Times New Roman">,</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">奏奏热闹</span><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"><font face="Times New Roman">![em01]</font></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman" size="3"><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"></span></font>&nbsp;</p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">下面就是</span><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"><font face="Times New Roman">12</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">转盘之点红点绿版[em03][em03]</span></font></p>

走遍中,台,港,澳四地的-CDM12(澳门区)

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走遍中,台,港,澳四地的-CDM12(澳门区)

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mousedog

繼續上图,有上次裝轉盤的經驗,今次針對了cdm12的電源和數字output作部分優化.

加强servo板1117-3.3v的电解部分,





重点改善后的电源板,






改做包括把原本的Q101由7805稳压改为LT1805稳压,DB101换为肖特基整流子,目的是要令那组+5V电源内阻更低,如果你上过示波器看看就知我为何要这样做.但这还有更好的做法就是换牛,用3组AC 9V分别供电最完美.
第二步就是尽量分离各数字output的相互干扰,之前已有人贴做法是废除光纤部分,增加同轴74uo4的数目以提升同轴输出的能力.
而我的改法是利用74vhc74的另一个output(Q与Q非)直去光纤接脚,就多出一个uo4(原光纤用)再并到同轴uo4那边.这样就可保留光纤输出部分又可提升同轴输出的能力.


再来看看整机内部,用长着双绿光led pcb,究竟绿光led对cd播放音貭有否改善呢?.......总之我喜欢这样改!!
还有电源板到servo板的接线我是这样处理,加小磁环,J101一组用方芯铜一组用镀银线.

HQ

索呀

mousedog

原帖由 loup7 于 2007-2-16 10:06 发表
請問如何令機內藍燈長期亮著?

只要把led檔板的J2插座的下面那只脚直接接地.

傲岸

原帖由 5687 于 2006-12-27 11:18 发表
我用旦电解换掉os电容后的声音比较宽松，低频好了点

老兄上个图看看，换的什么旦电解？？？

学习602

“而我的改法是利用74vhc74的另一个output(Q与Q非)直去光纤接脚,就多出一个uo4(原光纤用)再并到同轴uo4那边.这样就可保留光纤输出部分又可提升同轴输出的能力.”  具体的做法？上图

David36

请教楼主,我的CDM12CD机读盘还可以,就是不知什么问题有一个声道声音小而且有交流声.本人也不太懂电路,都是照着坛子上的说明焊的.请指点指点

caissw

有没有对光头进行打磨的？

dblql

东西做的漂亮