各位晚安~
已經開學了,家中又剩下沒在讀書的我們兩老,還有一個讀大學的還沒開學啦,聽到『開學』兩個字,有沒有被嚇了一跳,為什麼會被嚇一跳啊?
唉約~你是真不知?還是假不知?不就是那個『學費』高昂不是嗎?
今天來看一台NEXUS 7的更新觸屏維修,好久沒看到了,其實一直都有客戶送件來修,我只是沒有一一的來噗文~
像這一台,依以往維修過的例子來說,它算是裂得較為嚴重的,除了因車禍,被車子輪胎壓過的例子外~
所以~我一直也很納悶,到底是怎麼摔?怎麼壓到的?
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這是解下的內部主機~
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『四分五裂!』也不知從何貼起?
只好四周圍全部統統貼,中間也要貼,碎裂!越嚴重!我是越難拆卸啦!
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來拆框了~
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到處都是殘留的碎裂觸屏玻璃~要清除乾淨~
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年後進來的第一批N7總成~
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我要先測試一下~不然固定框尬上後,是一件棘手的事情
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atunPCLCD 發表在 痞客邦 留言(0) 人氣()
大家早安~
其實已經中午了,今天來看一台HERAN(禾聯)37型液晶電視維修~
HERAN(禾聯)的液晶電視外觀都差不多,不過~裡面的構造,有時因為使用的面板不同,所以產生不同的故障情況,可能跟製造時間有關吧?
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這是載回後送電測試的畫面,影像是扭曲~歪斜~不過顏色卻是正常的…
我腦海中狐疑了好一陣子,不知這到底是訊號處理不良所造成ㄋ?還是主板不良ㄋ?還是…?還是那一句話 ─ 『沙毋?』
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說過了~要掀開後蓋請小心點,有預想不到危機…
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這是解下背蓋後的全部電路分佈~
好像它的主機板也有所不同,跟製造的時間有關吧?
如:
http://mypaper.pchome.com.tw/88182846/post/1325136369
http://mypaper.pchome.com.tw/88182846/post/1326766583
http://mypaper.pchome.com.tw/88182846/post/1326619471
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根據主人的說法,它有時熱機一陣子後就會正常,有時又會出現不良,剛剛未拆機前是不良的顯示現象,這時再給它測試看看,它又正常顯示了~
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atunPCLCD 發表在 痞客邦 留言(0) 人氣()
各位午安~
最近的天氣,有點不理想,多穿一件有點熱,少穿一件又沒有很涼爽,想要吹個最小風速的風扇,又覺得有點涼,呼呼~真正是不知如何是好說?
一天忙碌又進尾聲,本日來看一台年前送修的24,本日來看一台年前送修的24吋LCD,這是多年的老機器,我知道的,這個當年都是售價昂貴的高級機種,能修得好繼續用囉,不然~真的可惜耶~
本機外觀:HP(惠普)型號:LP2475W
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這是它的故障現象:送電了,沒有待機燈,然後~當然怎麼按啟動鍵都是無作用的~
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來拆機查檢囉~這些機種,含DELL的廠牌,電路控制板都是使用倒蓋式的來固定,好大的一個鐵殼蓋,都是那塊鐵殼,讓整個機身特別有份量!
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解下鐵殼蓋電路盤,就是僅剩的面板,先不管它~
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現在送電無反應~
首要查檢它的控制電路為要,尤其是它的電源板部位~
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再次送電測量~
確定二次側終端,並無電壓輸出?不過~最前端的整流後的最高電壓是存在的~
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atunPCLCD 發表在 痞客邦 留言(0) 人氣()