[求助]...

<p><font size="4">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 各位朋友好.&nbsp;</font></p><p><font size="4">&nbsp;&nbsp;我有一视得安750B6非可视主机.现楼下主机对讲分机声音很小.</font></p><p><font size="4">&nbsp;&nbsp;分机说话楼下正常.主机换了945三极管还是老样子.请那位朋友指点一下.是什么原因.谢谢</font></p>

<p>查下是不是咪头被堵了?&nbsp; </p><p></p>

&nbsp;&nbsp;&nbsp; 咪头是正常的.声音还有点失真.

<p>找个好主机换上试下,看看是机子本身的原因还是线的原因.或是调下主机音量电位器.</p><p>我对视得安的产品不是很熟悉,我以前就处理过主机(不是视得安的)对讲声音很小,而且还有杂音.</p><p>原因也就是调下电位器,清理下咪头杂质.</p>

<p>请问搂主在那个地方.我是 视得安的.如果在天津可以直接和我联系,一定会帮你解决问题的.如果是别的地方.可以拿到当地办事处检查一下是不是主机的 问题&nbsp;.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="mailto:rhb0620@126.com">rhb0620@126.com</a></p><p></p>

[此贴子已经被作者于2007-9-2 12:39:44编辑过]

<p>请先确认是不是主机问题.如果确认是主机问题,一般都是MIC不良.信号流程:</p><p class="MsoNormal" style="MARGIN: 0cm -25.6pt 0pt 0cm; TEXT-INDENT: 21.75pt; LINE-HEIGHT: 20pt; mso-para-margin-right: -2.44gd; mso-line-height-rule: exactly;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">主机</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><font face="Times New Roman">MIC</font></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">头的音频信号经</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><font face="Times New Roman">C₁</font></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">耦合到三极管</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><font face="Times New Roman">T₁</font></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">、</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><font face="Times New Roman">T₂</font></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">放大后，再经</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><font face="Times New Roman">C₆</font></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">、</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><font face="Times New Roman">R₇</font></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">耦合到</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><font face="Times New Roman">1^#</font></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">线，并连接到分机</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><font face="Times New Roman">1^#</font></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">线。</span></p><p class="MsoNormal" style="MARGIN: 0cm -25.6pt 0pt 0cm; TEXT-INDENT: 21.75pt; LINE-HEIGHT: 20pt; mso-para-margin-right: -2.44gd; mso-line-height-rule: exactly;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">最后通过分机中的叉簧开关送到喇叭发声。就这么简单请你认真查看.如有不明之处请与我来电一起解</span></p><p class="MsoNormal" style="MARGIN: 0cm -25.6pt 0pt 0cm; TEXT-INDENT: 21.75pt; LINE-HEIGHT: 20pt; mso-para-margin-right: -2.44gd; mso-line-height-rule: exactly;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">决此故障!QQ:328998796加QQ时请加以说明.</span></p>