[现代HYUNDAI][原创]现代索那塔调频收音机巧妙修理

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 102pt; mso-char-indent-count: 8.5;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 黑体;">现代索那塔调频收音机巧妙修理<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 78.75pt; mso-char-indent-count: 7.5;"><span lang="EN-US"><p><font face="Times New Roman"> </font></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 28.25pt 0pt 0cm; TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-para-margin-right: 2.69gd;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">杭州的出租车有</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">8000</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">多辆，（</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">06</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">年底的统计）。以帕萨特、宝来、现代、红旗为主流车型，还有少量的奔驰和丰田车。其中以现代和红旗车的运行成本最低且量最多。杭州出租车司机白天开车就是听调频的</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">91.8MHZ</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">交通之声。可是偏巧这两款车的调频收音机毛病最多。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 28.25pt 0pt 0cm; TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-para-margin-right: 2.69gd;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">红旗车大部份是高频头坏，前两年我从天宝厂进高频头换。拆下、换上再加调试，很麻烦。可是换了也要坏，工作量太大且成本还很高。后来就修高频头，几乎是通病。一般几分钟搞定。这下挣钱了。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 10.3pt 0pt 0cm; TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-para-margin-right: .98gd;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">现代索那塔调频收不到，高频头坏的比例很小。现象是能搜索，有显示。没有电台。光是</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">噪声。是什么原因收不到台呢？因为没有原理图。我从实物画下的原理图希望能看懂。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">图形</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">1 </font></span></p><p class="MsoNormal" style="MARGIN: 0cm 10.3pt 0pt 0cm; mso-para-margin-right: .98gd;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><p><font face="Times New Roman"> </font></p></span></p><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><p><font face="Times New Roman" size="2"></font> </p></span> <p><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"></span> </p><br/>

<p class="MsoNormal" style="MARGIN: 0cm 10.3pt 0pt 0cm; mso-para-margin-right: .98gd;"><span style="FONT-SIZE: 9pt;"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">（</span><span style="FONT-SIZE: 9pt;"><font face="Times New Roman">
</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电调谐的调频收音机原理，喜欢学习的朋友可以找一些专业书看，这里不介绍了。）</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><p><font face="Times New Roman"> </font></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">一．<span style="FONT: 7pt "Times New Roman";">  </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">故障分析：（经检查）</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 22.5pt; mso-char-indent-count: 2.5;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">1</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">．该机能收</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">AM</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电台，不能收</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电台。说明中放、高放基本是正常的。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">AM-AMT</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM-ANT</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">（天线）输入也正常。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 19.2pt 0pt 0cm; mso-para-margin-right: 1.83gd;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman"><span style="mso-spacerun: yes;">     </span>2</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">．</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">TUNER VCC </font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">AM VCC</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM VCC</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">在</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">AM </font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM </font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">状态电压都正常。收</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">时</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM VT</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电压很高且无变化</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman"> (FM</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">的调谐电压</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">) </font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">AM OSC </font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">有电压（用示波器观察能看见有变化的锯齿波电压），</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM OSC </font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">无电压（</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">的本振电压）。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM </font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">解码器无异常。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 22.5pt; mso-char-indent-count: 2.5;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">3</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">．</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">工作的基本条件是：在其他电压都正常的情况下，必须有一个能变化的</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM VT</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电压</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">和</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM OSC</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电压。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman"><span style="mso-spacerun: yes;">     </span>4</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">．数字调谐控制电路包括两部分，一是锁相环电路组成的数字频率合成器，用来完成本振</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">信号的频率合成和频率数字显示。二是调谐控制器，由</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">CPU</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">对系统进行控制。看来在</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">时，</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">CPU</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">没有输出随着频率变化时的脉宽电压来控制</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">Q601</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">Q602</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">。所以调谐器没有收到随着频率变化</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">的</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM VT</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电压，</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM OSC </font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">也没有电压。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">二．<span style="FONT: 7pt "Times New Roman";">  </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">解决措施：</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; mso-list: l2 level1 lfo2; tab-stops: list 39.0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;"><font face="Times New Roman">1．<span style="FONT: 7pt "Times New Roman";">   </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">替换</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">CPU </font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">没有。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; mso-list: l2 level1 lfo2; tab-stops: list 39.0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;"><font face="Times New Roman">2．<span style="FONT: 7pt "Times New Roman";">   </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">给调谐器创造一个</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM VT</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">能变化的电压。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 19.2pt 0pt 0cm; TEXT-INDENT: 21pt; mso-para-margin-right: 1.83gd; mso-list: l2 level1 lfo2; tab-stops: list 9.0pt; mso-para-margin-top: 0cm; mso-para-margin-bottom: .0001pt; mso-para-margin-left: 0cm;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;"><font face="Times New Roman">3．<span style="FONT: 7pt "Times New Roman";">     </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">能产生变化电压的途径有很多，最简单的用一只可调电位器。有兴趣的朋友也可以自作一个电路用按纽来控制。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">三．<span style="FONT: 7pt "Times New Roman";">  </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">奇思妙想：</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><p><font face="Times New Roman"> </font></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 19.2pt 0pt 0cm; TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-para-margin-right: 1.83gd;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><font size="2"><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt;"></span></font></span></p>

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">一．<span style="FONT: 7pt "Times New Roman";">  </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">奇思妙想：</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><p><font face="Times New Roman"> </font></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 19.2pt 0pt 0cm; TEXT-INDENT: 18pt; mso-para-margin-right: 1.83gd; mso-char-indent-count: 2.0;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">1</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">．我把</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">R101</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">拿掉用一只</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">50K</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电位器代替。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">A</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">端接电位器中间，为避免</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">Q601</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">负载太重（电位器短路时），中间加</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">2000</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">欧姆电阻。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">B</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">端接电位器一端，另一端中间加一只</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">1200</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">欧姆电阻接地。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">开机慢慢旋转电位器，能收到</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">87.5</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">－</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">179.5 MHZ</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">的电台了。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">2</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">．把电位器挂在收音机面板上，太不雅观了。也不方便。怎么办？</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">3</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">．该机的面板上，有一只带开关的音量电位器，还有一只高低音调的电位器（这电位器有四组），我把其中的一组电位器，（调低音的一组）拆掉一只电阻</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">R540</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">。把</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">A/B </font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">端接到这组电位器上。就</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">OK</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">了。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><p><font face="Times New Roman"> </font></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">二．<span style="FONT: 7pt "Times New Roman";">  </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">修后语：</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; mso-list: l1 level1 lfo2; tab-stops: list 39.0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;"><font face="Times New Roman">1．<span style="FONT: 7pt "Times New Roman";">   </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">如此修理成本最低，对整机破坏最小，外观完整。客户能接受。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; mso-list: l1 level1 lfo2; tab-stops: list 39.0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;"><font face="Times New Roman">2．<span style="FONT: 7pt "Times New Roman";">   </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">经</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">N</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">台修理，实践考证下来。安全、可靠、可行。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; mso-list: l1 level1 lfo2; tab-stops: list 39.0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;"><font face="Times New Roman">3．<span style="FONT: 7pt "Times New Roman";">   </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">修理时间最短，一般从拆机、修理、按装十几分钟。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; mso-list: l1 level1 lfo2; tab-stops: list 39.0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;"><font face="Times New Roman">4．<span style="FONT: 7pt "Times New Roman";">   </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">修汽车收音机是初学者的软肋希望该文对你有帮助。由于本人水平有限，有表述不真确的请见谅。</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; mso-list: l1 level1 lfo2; tab-stops: list 39.0pt;"><span lang="EN-US" style="FONT-SIZE: 9pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;"><font face="Times New Roman">5．<span style="FONT: 7pt "Times New Roman";">   </span></font></span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">附维修实物图</span><span lang="EN-US" style="FONT-SIZE: 9pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt;"><span lang="EN-US" style="FONT-SIZE: 9pt;"><p><font face="Times New Roman"> </font></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 42pt; mso-char-indent-count: 4.0;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";"><font size="2">杭州双林音视技术服务部</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 36.75pt; mso-char-indent-count: 3.5;"><font size="2"><span lang="EN-US"><font face="Times New Roman">TEL</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">：</span><span lang="EN-US"><font face="Times New Roman">0571</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">－</span><span lang="EN-US"><font face="Times New Roman"> 56372956 </font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">，</span><span lang="EN-US"><font face="Times New Roman">85352176 </font></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 36.75pt; mso-char-indent-count: 3.5;"><span lang="EN-US"><font face="Times New Roman"><font size="2"><span style="mso-spacerun: yes;">    </span>13018934493</font></font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 36.75pt; mso-char-indent-count: 3.5;"><font size="2"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">杭州绍兴路</span><span lang="EN-US"><font face="Times New Roman">210</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">号（杭州汽车精品街）</span></font></p>

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<p>不错！有办法！</p><p>我也碰到过这类机器，也是同样的问题！是ＣＰＵ的问题，没有<span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM VT</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:';">电压！我是外加的电位器</span></p><p><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:';">下次再</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:';">碰到可以参考你的方法！</span><span lang="EN-US" style="FONT-SIZE: 9pt;"></span></p>

<p>不错！有办法！</p><p>我也碰到过这类机器，也是同样的问题！是ＣＰＵ的问题，没有<span lang="EN-US" style="FONT-SIZE: 9pt;"><font face="Times New Roman">FM VT</font></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:';">电压！我是外加的电位器</span></p><p><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:';">下次再</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:';">碰到可以参考你的方法！</span><span lang="EN-US" style="FONT-SIZE: 9pt;"></span></p>

真是好办法,以后有遇到一定仿效.顶<img src="images/post/smile/dvbbs/em02.gif" /><img src="images/post/smile/dvbbs/em02.gif" />

<p>斑主</p><p>这个贴应该加精呀</p>

好办法

虽然没有实践过，但看看确实是个好办法！还是老汤牛！！赞一个！