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瀚视奇HH221DBP CIN55 OSD菜单自动跳出,无法退出

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Post time: 2016-10-20 18:19:11
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瀚视奇HH221DBP CIN55(RTD2120L+RTD2555LH)(SM555LB1-R30.1) 开机后·OSD菜单自动跳出,无法退出,因无电路图,维修应检查何处,RTD2120L的抗干挠瓷介电容是那个?

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Post time: 2016-10-21 08:08:31
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拔掉键控线试了么?
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Post time: 2016-10-23 17:33:15
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面板上的按键漏电吧
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Post time: 2016-10-25 21:42:45
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如果拆了键控还是跳菜单,多半是CPU问题,什么抗干扰电容。我没听说过。你可能说的电容是指键控分压信号输入端对地滤波电容吧。这电容是对于分压键控电路调计的,用于吸收杂波和键控延时微积分,可对于多端口键控识别电路,根本就没设计这些抗干扰电容。
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Post time: 2016-10-26 10:19:38
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检查按键。顺路查一下到CPU的线路是否有漏电!!
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Post time: 2016-10-27 15:49:58
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面板上的按键漏电吧
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Post time: 2017-11-9 10:14:01
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应该是面板按键漏电
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Post time: 2018-3-20 19:36:54
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面板上的按键漏电
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