故障1:一台NEC 38 cm液晶显示器,电源指示灯亮,但屏幕无任何显示。故障分析:液晶显示器电源指示灯亮,说明显示器电源部分完好。而屏幕无任何显示,最常见情况是液晶显示控制模块与液晶显示板的段电极之间存在接触不良故障。故障排除:拆开显示器外壳,可观察到控制电路和电源电路两个模块的电路板。拆下电路板后露出显示面板的X、Y电极(X电极简称为背电极,Y电极简称为段电极),然后引出数据线即可开始检测。液晶显示 Fault 1: a NEC 38 cm LCD monitor, power indicator light, but the screen without any display. Failure Analysis: LCD power indicator light, indicating part of the monitor power intact. The screen without any display, the most common situation is the liquid crystal display control module LCD panel segment electrodes and poor contact between the fault. Troubleshooting: Disassemble the display case and observe the circuit board for both the control circuit and the power circuit. Remove the circuit board exposed X, Y electrode display panel (X electrode referred to as the back electrode, Y electrode referred to as the segment electrode), and then leads to the data line to start testing. LCD