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故障现象: 一台IBM PC/AT 286微机,开机时工作正常,二十分钟后,显示器的屏幕上显示PARITY CHECK1, ????? 此后再也不能从键盘上输入任何信息,机器不再正常运行,以后每次开机都是这种情况,而且正常运行的时间越来越短。 故障分析与维修: 上述故障现象往往是由于机内某一元件的热稳定性差所致。随着机器工作时间的延长(开机二十分钟后),机内某一元件要发热,温度逐渐升高,最终使其性能变差,导致机
Symptom: an IBM PC / AT 286 microcomputer, boot is working properly, twenty minutes later, the display on the screen shows PARITY CHECK1, ????? can no longer enter any information from the keyboard, the machine is no longer normal Running, after each boot is the case, but the normal operation of the shorter and shorter. Failure Analysis and Maintenance: The above symptoms are often due to the thermal stability of a component within the machine due to poor. With the extension of working hours of the machine (20 minutes after starting up), a certain component in the machine needs to be heated and the temperature gradually increases, eventually degrading the performance of the machine