| 计算机彩色显示器信号源 |
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| 引用本文： | 宋卫星.计算机彩色显示器信号源[J].现代电子技术,2006,29(5):122-123,129. |
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| 作者姓名： | 宋卫星 |
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| 作者单位： | 陕西理工学院,陕西,汉中,723001 |
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| 基金项目： | 陕西理工学院教育教改基金资助项目(YJG0421) |
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| 摘 要： | 在维修CRT式节能型计算机彩色显示器时,若采用专用的计算机显示器信号源能避免因显示器的频繁开关而损坏主机显卡,操作需要时可直接开关显示器,无需考虑信号源的安全,大大方便维修操作。由7555时基IC构成的振荡器、触发器与用CD4060二进制串行计数器、74LS161二进制同步计数器等构成的分频电路能够组成满足上述要求的计算机彩色显示器信号源。
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| 关 键 词： | 彩色显示器 7555时基IC 分频电路 信号源 |
| 文章编号： | 1004-373X（2006）05-122-02 |
| 收稿时间： | 2005-10-20 |
| 修稿时间： | 2005-10-20 |
The Signal Source for a Color Computer Monitor |
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| SONG Weixing.The Signal Source for a Color Computer Monitor[J].Modern Electronic Technique,2006,29(5):122-123,129. |
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| Authors: | SONG Weixing |
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| Affiliation: | Shaanxi University of Technology, Hanzhong, 723001, China |
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| Abstract: | Repairing energysaving CRT color computer monitors with a specially designed signal source can avoid the risk of display adaptor damage,it allows the switch on and off of the monitor when in need without worrying about the safety of the signal source,thus brings about great convenience to the repairing.Such a signal source can be realized with a free oscillator of 7555 timebase IC,FF of 7555 timebase IC,and a frequency division circuit of a CD4060 14stage binary serial counter and a 74LS161 4bit binary synchronous counter. |
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| Keywords: | color monitor 7555 timebase IC frequency division circuit signal source |
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