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故障分析對(duì)于初學(xué)者來(lái)說(shuō)最直接、最有效的方法是排除法,顯示屏是主要有三大硬件組成:控制卡、單元板、開(kāi)關(guān)電源.首先:我們判斷控制卡是不是好的,你先看下把電源打開(kāi),控制卡指示燈是否點(diǎn)亮,如果不亮看下檢查是否有5V供電,顯示屏是不是能顯示內(nèi)容,只要能顯...
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