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李德鹏

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[问答]

网络分析仪视频显示变色

亲爱的先生:我拥有一台8753C,电源最近就死了。
我修好了8753C。
电源和其他一些部件被更换了。
当我拿回8753C时,几天后,我注意到这个显示变色。
刻字应始终是纯黄色,而不是彩虹。
我附上了我的8753C显示器的快照。
每当进入时显示屏将恢复为纯黄色。
你能告诉我这个症状是不是安装了坏的部件?
你能告诉我需要做些什么来解决这个问题吗?
感谢您过去的回复,我期待着您的下一个回复。

以上来自于谷歌翻译


     以下为原文

  Dear Sir:

     I own a 8753C and the power supply recently died on me.

     I got the 8753C repaired.    The power supply and some other parts were replaced.

     When I got my 8753C back, after a couple of days, I noticed this display discoloration.  The lettering should always be a solid yellow, not the rainbow.   I have enclosed a snapshot of my 8753C display monitor.

     Every once in while the display will revert to solid yellow.

     Can you tell me from this symptom that a bad part has been installed?    Can you tell me what needs to be done to fix this?

     Thank you for your past replies and I look forward to reading your next reply.   
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回帖(15)

王玉英

2019-1-14 12:55:06
您有没有使用过Agilent / HP电源(E3631A或E3632A)并将其放在8753的左上方?
回到我经常看到的那些日子里。
电源变压器的磁场搞砸了8753 CRT。
等了几天,它通常会消失。
如果您确实将电源放在右侧的8753位置或CRT屏幕上。

以上来自于谷歌翻译


     以下为原文

  Did you by any chance use one of the Agilent/HP power supply (E3631A or E3632A) and place that on the top left side of the 8753?
Back in the days I see that very often. The magnetic field of the power supply transformer messed up the 8753 CRT. Waite couple of days and it usually go away. If you do put that power supply on the top of the 8753 place that on the right side or fare from the CRT screen.
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李德鹏

2019-1-14 13:14:50
亲爱的米雷克;
谢谢你的依赖。
我以为我在解决这个问题上运气不好。
要回答这个问题:您是否有任何机会使用Agilent / HP电源(E3631A或E3632A)并将其放在8753的左上方?
答:我发送8753C进行维修,我不知道技术人员做了什么。
我读过如果错误地更换电源,可能会损坏设备。
我觉得这很容易做到。
我权衡了将设备送去维修或自行完成的好处和后果,我决定将设备送去维修。
如果您知道电源安装的详细信息,在进行错误操作和进一步损坏设备方面,我很乐意阅读它。
当你写道:“回到白天” - 我意识到你必须是一个长时间使用网络分析仪的人,8753C是一个旧单位,但它是一个很好的单位。
与8753D及其后的所有其他网络分析仪相比,它具有许多优势。
例如,单独的S参数测试集具有其优点和缺点。
当你写道时,我不太明白你写的是什么:“等几天,它通常会消失”你能解释一下测试是如何进行的吗?
感谢您的回复。

以上来自于谷歌翻译


     以下为原文

  Dear Mirek;

     Thank you for your rely.   I thought I was out of luck with regard to solving this problem.

     To answer this question:

Did you by any chance use one of the Agilent/HP power supply (E3631A or E3632A) and place that on the top left side of the 8753?

     Answer:   I sent the 8753C in for repair and I don't have any idea what the techs did.   

I read that if one replaces the power supply incorrectly, it is possible to damage the unit.   I got the impression that this was easy to do.   I weighed the benefits and consequences of sending the unit in for repair or doing it by myself and I decided to send the unit in for repair.  If you know the details of the power supply installation, in terms of doing it incorrectly and damaging the unit further, I would be happy to read about it.  

      When you wrote:

"Back in the day" - I realized that you must be a guy working with network analyzers for a long time, the 8753C is an old unit but it is an excellent unit.   It has a lot of advantages over the 8753D and all the other network analyzers that followed it.  For example, a separate S parameter test set has its advantages and disadvantages. 

I didn't quite understand what you wrote when you wrote:

"Waite couple of days and it usually go away"

Can you explain how the test was conducted?

Thanks for your reply.
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陈建华

2019-1-14 13:30:19
我假设这是一个CRT显示器而不是LCD显示器。
它看起来很磁化。
你需要对它进行消磁。
如果您没有消磁器,请找一个旧的AC操作卷笔刀(通常是较旧的,更好的。),还有一支铅笔。
将磨刀器放在离CRT几英尺远的位置并插入铅笔。
在它运行时,将它非常靠近CRT的前面,并以圆周运动方式移动。
如果8753通电显示器,则观看会更有趣。
在取下铅笔之前,将磨刀器移离CRT几英尺。
如果这不能解决问题,请取下顶盖并重复,但这次是CRT外壳的整个区域。

以上来自于谷歌翻译


     以下为原文

  I am assuming this is a CRT display and not an LCD display.
It looks magnetized.  You need to degauss it.
If you do not have a degausser, find an old AC operated pencil sharpener (usually the older, the better.), along with a pencil.  Place the sharpener a couple feet away from the CRT and insert the pencil.  While it is running, bring it very close to the front face of the CRT, and move in a circular motion.  It is much more fun to watch if the 8753 is powered up with the display on.  Before removing the pencil, move the sharpener a couple of feet away from the CRT.

If this does not solve the problem, remove the top cover and repeat, but this time do the entire area of the CRT enclosure.
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李德鹏

2019-1-14 13:42:30
亲爱的Jvall;
感谢您的建议。
这听起来像尝试一样有趣。
一旦我掌握好的工具,我会试一试。
再次感谢您的反馈。
真诚的,SOLT_guy

以上来自于谷歌翻译


     以下为原文

  Dear Jvall;

     Thank you for your advice.   

     It sound like something that would be fun to try.

     I will give it a try as soon as I get a hold of good right tool.

     Again, thank you for your feedback.

     Sincerely,

     SOLT_guy
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