HF5100HG
這是一臺(tái)80C196KB微型控制器構(gòu)成的變頻器,型號(hào)是東洋“HF5100HG”.故障現(xiàn)象是操作面板LED無顯示,操作按鈕沒反映,所有的輸入端口無響應(yīng)!從現(xiàn)象上看是控制器非正常工作.用示波器對(duì)5V電源部分測(cè)量無異常,M3771復(fù)位電路同樣正常,分別檢查了ROM,RAM八位數(shù)據(jù)線以及地址線和其他門電路均正常.現(xiàn)維修進(jìn)入困境,有請(qǐng)同行們給予賜教.
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@toluoxin
[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/36/1133687455.jpg');}"onmousewheel="returnimgzoom(this);">
微控制器非正常工作出現(xiàn)的看門狗動(dòng)作波形.
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500) {this.resized=true; this.width=500; this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/36/1133687643.jpg');}" onmousewheel="return imgzoom(this);"> 0
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@toluoxin
微控制器非正常工作出現(xiàn)的看門狗動(dòng)作波形.[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/36/1133687643.jpg');}"onmousewheel="returnimgzoom(this);">
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500) {this.resized=true; this.width=500; this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/36/1133687826.jpg');}" onmousewheel="return imgzoom(this);">
500) {this.resized=true; this.width=500; this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/36/1133687826.jpg');}" onmousewheel="return imgzoom(this);"> 0
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@toluoxin
測(cè)試點(diǎn)[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/36/1133687826.jpg');}"onmousewheel="returnimgzoom(this);">
毛病找到了,是HC04壞了,但是現(xiàn)在上電顯示“C52”,查了手冊(cè)說是數(shù)據(jù)存儲(chǔ)器的問題,不知道應(yīng)該怎么恢復(fù)?
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