显示器OSD菜单的几种特殊故障及处理方法

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 200%; TEXT-ALIGN: center; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 3" align=center> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 200%"><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">数控显示器调整方便，操作简单，迅速取代了原来的模拟调整显示器而迅速占领市场。不过，在我们使用过程中也会出现一些奇怪的与</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单有关的故障，让我们摸不着头脑。现在我就结合实际中遇到的一些故障问题介绍一下这些故障产生的原因和解决方法。</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 200%"><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">1.</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">当按下显示器面板上的“</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">MENU</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">”键后，</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单一闪即逝，无法调整相应设置内容。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><BR><BR></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　这类问题多是因为显示器内部的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">MCU</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">没有直接焊接在板子上，而使用的是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">IC</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">座。这种安装方法主要是为了避免</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">PCB</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">板在波峰焊过种中的高温和静电损坏</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">MCU</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">集成电路。但是在长时间使用过程中，</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">MCU</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的引脚会产生氧化生锈现象，导致</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">MCU</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">引脚与</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">IC</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">座接触不良， 后就出现了这种情况。这种方法解决起来也非常简，只要小心把</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">40</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">脚的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">MCU</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">集成电路取下来，再用力插回就可以了。</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 200%"><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">2.</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">显示器开机</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单一直显现，无法消去。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><BR></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　这种问题常见于使用时间比较久的显示器，多是三四的显示器。因为显示器</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单的控制按键使用不是矩阵扫描方式，而是电压判断方式。为了避免周围环境中的干扰，在</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">MCU</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的信号采样端都焊接了一个瓷片电容。瓷片电容在使用几年后或者因为周围环境湿度过大时就会老化漏电，导致</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">MCU</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的取样电压不准或飘移，也就出现上述的现象，不用按键就会出现</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单，并且无法消除。这种故障排除需要懂些电路，找出</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">MCU</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">按键取样电路中的抗干扰电容，用烙铁把这个电容焊下来就可以了。不用买一个新的焊上去也行。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 200%"><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">3.</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">能够正常调整相应参数，但是关机重新回到原来状态。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><BR></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　这种情况常出现在使用一年半以上的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">显示器上。多数都是头一天还好好的，可第二天一开机，却坏了。这里所谓的坏了，就是图像变小了或变得过大，或图像的颜色不正常等等。其中有部分故障可以通过</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单调为正常使用模式，但是只要一关机，再开机时就又恢复到时“坏”的状态。如果是对显示器的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单设置熟悉的人还可以，只要不怕麻烦的调整就行。不过，有的就不是简单调整就能恢复的，还需要进入工厂模式才能修复。对于这类故障，多是因为显示器内的存储器芯片损坏，不能保存设置所致，型号多为</SPAN><?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:chmetcnv UnitName="C" SourceValue="24" HasSpace="False" Negative="False" NumberType="1" TCSC="0" w:st="on"><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">24C</SPAN></st1:chmetcnv><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">04,<st1:chmetcnv UnitName="C" SourceValue="24" HasSpace="False" Negative="False" NumberType="1" TCSC="0" w:st="on">24C</st1:chmetcnv>08</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，更换一个新的就可以解决问题。不过，不能拿一个空白的换上，要不开机后什么也没有，显示器的电源指示灯亮，有高压，但始终黑屏。必须使用编程器把该型号显示器的设置内容（也就是正常机型中的存储器内容）写入空白芯片中，再换上就可以了。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><BR></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　还有一种特殊的，即使更换存储芯片后，使用一段时间后故障依然出现。这是因为显示器存储器电路中的搞干扰电容损坏换容所致，不能起到搞干扰作用，导致外界干扰脉冲改写了存储器中的内容。这种故障的检查就麻烦了一些，需要有些电子技术才行。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><BR></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">4.</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">图像偏暗，同时</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单也很暗，无法调整图像的亮度和对比度。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><BR></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　当显示器图像偏暗时，我们可以通过呼出</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单，来判别是硬件电路故障还是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单设置有误。如果呼出的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单同样暗淡不清，这种故障就是显示器内部电路有问题，多是亮度，对比度电路故障，栅极，灯丝，阴极电压不正常所致；如果</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单清晰，那么这种故障就是用户无意中把用户模式中的亮度和对比度设置为 小值所致。如果把</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单用户模式中的亮度和对比度设置为 大值后，图像还不是很亮，那么就有必要进入显示器工厂模式中调整副亮度和副对比度。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><BR></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　　</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">5.</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">当显示器出现缺色时，我们也可以通过</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单来帮助判断故障的部位。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 200%"><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">如果</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单也同样缺色，那故障肯定是显示器的尾板电路，多是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">CRT</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">驱动电路或预视放电路的集成电路有问题。如果</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">OSD</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">菜单颜色正常，而图像颜色缺色，这种故障一般就是信号线中有断线，信号插头有断针或短针情况。个别的显卡中可以设置显示器输出色温调整，当颜色过于偏向某一色时，也给人的感觉也是显示器缺色。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 200%; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></SPAN></P>