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本文以ABS3000型收款机为例,说明收款机故障诊断的一般原则与方法。 从外观上看,ABS3000型收款机由主机、钱箱、打印机、显示器、键盘等5大部分组成。主机箱内主要有电源、硬盘、软驱和主板及插在主板上的顾显(钱箱)卡、通讯卡组成,打印机主要由EPSON打印机构、打印控制板组成(顾客显示器安放在打印机上)。键盘由按键、键盘卡、磁卡阅读器组成。这些部件在使用过程中都有可能发生故障。当机器出现故障时,故障诊断应遵循一定的原则和方法,这样不仅可以提高排错速度,减少不必要的工作量,而且更重要的是不会在诊断过程中产生新的故障,使故障复杂化。 一、故障诊断的一般原则
This article takes ABS3000 cash register as an example to illustrate the general principles and methods of cash register troubleshooting. From the appearance point of view, ABS3000 cash registers by the host, cash drawers, printers, monitors, keyboards, etc. 5 most components. The main chassis inside the main power supply, hard disk, floppy and motherboards and inserted in the motherboard Gu Xian (cash box) card, communication card, the printer mainly EPSON printing institutions, print control panel (customer display placed on the printer). Keyboard by the keys, keyboard card, magnetic card reader. These parts may be in use during the failure. When the machine fails, the fault diagnosis should follow certain principles and methods, which will not only improve the speed of troubleshooting, reduce unnecessary workload, and more importantly, will not produce new faults in the diagnosis process, make the fault complicated The First, the general principles of fault diagnosis