咱…親愛的眾網友~大家好!
今天來看一台我尚未維修過的平板,型號是:K00F,它的觸屏破裂的更換維修~
其外觀如下:
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這些印刷在背蓋上的機種註明,除了字體特小外,有時還因與背蓋顏色相近,幾乎看不出它是什麼機種型號?有時詢問客人,他也答不出所以然~實在是…
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受到撞擊~機殼前、後蓋,已經稍微變形、爆裂!
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就撞到這個角落,觸摸玻璃四散分裂~
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觸屏的固定邊框還撞擊到變形~上翹~
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這是解下背蓋後的內部狀況~
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這裡可以看到K00F的另一個名稱,叫做:『ME102A』
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解下所有的電路主板及其電池~
atunPCLCD 發表在 痞客邦 留言(4) 人氣()
咱…親愛的眾網友~大家好!
這是一位老客戶送來維修的機器,說實在的也是一台古老的液晶螢幕,是底下這個廠牌,acer(宏碁)型號:AL2723W,一起來看看囉~
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來拆機查檢~
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老客戶說:是在使用中,有聽到LCD內部『播~』的一聲,屏幕就熄滅,重新開機就只剩下電源指示燈有亮起,面板還是沒亮?如底下圖示:
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拆解這一類大尺吋的螢幕是很累人的,因為它們的前、後蓋,也跟小尺寸一樣,有許多卡榫來幫助密合,這個真的很沒人性啦~
除了~前、後蓋的密合外,這個電路控制鐵盤,也是一大讓我不解的地方,固定方式依然是沿襲小尺寸液晶螢幕的固定方式,因此製作了一個超大的鐵盤蓋,來固定它的電路!如下圖所示~
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像上頭這樣子~當然是無法做測量的,把它全部都解下來,再做一遍送電測試及查量的動作~
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動態的查量結果?
你是有看到的啦~
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通通沒有什麼電位到達高壓板端的PIN上,這個樣子當然無法叫高壓板工作!不能工作也就無法讓面板亮起來了~
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所以…是這一塊電路(POWER BOAD)出了大問題嗎?
atunPCLCD 發表在 痞客邦 留言(0) 人氣()
咱…親愛的眾網友~大家好!
大家早!今天持續來看一台液晶電視的維修,是底下這一台Panasonic(國際)型號是:TC-27MPF,27型液晶電視算是非常『古早』的液晶了,有沒有維修價值,那其實很難判定?端看個人的價值觀囉~
這是它的後背照,及出廠標貼~
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除了原機器的腳架座外,主人又給它加強了一塊木板座,印象中機器好像是會向前傾斜,所以特別處理它~
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我解下它的腳座,有特別給它觀察,除了螺絲有鬆脫外(已鎖緊),好像是整個可旋轉的轉盤已經有了較大的縫隙吧?因為固定完那些螺絲後,它還是在晃動~真是沒則!
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上頭只是插曲~來看一下真正的目的~
那就是拆解本機器,一探無聲音的故障地點~
這是本機器的視訊盒~
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像這一類的電視,大概都跟本機器一樣,使用這一個這麼大的『啊達不達』
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atunPCLCD 發表在 痞客邦 留言(0) 人氣()