电子技术应用讨论

电子技术应用讨论

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共有帖子数6篇

主题：关机后损坏电视

1

dfzrx

最近本人遇到一个奇怪的现象：一台组装21英寸彩电，遥控关机后1分钟，只听“叭”一声响，场块LA87040损坏，更换后一切正常，正常使用两天后，某次遥控关机，场块LA87040再次损坏。这里要问的是场块LA87040为何正常使用不坏遥控关机后损坏。

2008-5-02 17:28 回复此发言

2

欣鑫维修

身份：圈友

发帖：6

可能是遥控关机时电压升高的原因。请换上场块后仔细查一下电源电压。

2008-5-02 20:20 回复此发言

3

dfzrx

谢谢圈友，已经找到一个原因，场滤波电容由1000下降200，再实验。

2008-5-02 21:08 回复此发言

4

lulu

身份：圈友

发帖：5

可能是遥控关机后开关电源负载减轻.电源电压升高导致

2008-5-02 21:51 回复此发言

5

yunque.01

身份：圈友

发帖：2

可能B892有问题吧？

2008-5-05 23:23 回复此发言

6

世界杯

您的《关机后损坏电视》很有意思！

2008-6-24 13:34 回复此发言

共有帖子数6篇

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      		<span id="moreInfoSpan" class="popupLink needUnderline">
      			<span onclick="window.open('${circleUser.getSpaceLink()}profile/')">详细资料>></span>
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	        	<p style="height:18px;margin:10px 0px;">该圈友尚未推送日志</p>
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	            	<ul style="display:block;padding-left:5px;line-height:20px;">
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	            	<span id="moreBlogsSpan" class="popupLink needUnderline">
		      			<span onclick="window.open('${SpaceInfo.getSpaceLinkBlog(circleBlog.blogUserName)}')" target="_blank">更多>></span>
		      		</span>
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	      	</div>
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</div>
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			<input type="radio" onclick="PosterVote.setVoteType(this);" {if voteType == 1}checked{/if} value="1" name="voteType" id="singleChoiceVote"/> 单选投票
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