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电子计算器、电子秒表等仪器很多用液晶显示屏显示数字,在使用中常会因显示屏和印刷线路板间接触不良而造成不显示,或缺字、缺笔划的故障.本文介绍几点排除这些故障的方法. ①很多液晶显示屏是靠导电橡胶条和印刷线路板上的电路连接的.导电像胶、印刷线路板被沾污而引起的接触不良,只需用脱脂棉蘸无水酒精对这些部分多次揩擦,晾干后,装配即可.
Electronic calculators, electronic stopwatch and many other devices with a liquid crystal display digital display, often in use due to poor contact between the display and the printed circuit board caused by non-display, or missing words, lack of strokes of the fault. Fault method. ① many LCD screen by conductive rubber strip and printed circuit board circuit connected. Conductive adhesives, printed circuit board is contaminated caused by poor contact, simply with cotton wool moistened with alcohol on these Part repeatedly wipe, dry, the assembly can be.